| // Copyright 2025 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/browser/preloading/preload_serving_metrics.h" |
| |
| #include "base/test/metrics/histogram_tester.h" |
| #include "base/test/scoped_feature_list.h" |
| #include "content/browser/preloading/prefetch/prefetch_match_resolver.h" |
| #include "content/browser/preloading/prerender/prerender_features.h" |
| #include "content/common/features.h" |
| #include "content/public/browser/preloading.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace content { |
| |
| struct MakeSkeltonPreloadServingMetricsArgs { |
| int n_prefetch_match_metrics; |
| }; |
| |
| std::unique_ptr<PreloadServingMetrics> MakeSkeletonPreloadServingMetrics( |
| MakeSkeltonPreloadServingMetricsArgs args) { |
| auto ret = std::make_unique<PreloadServingMetrics>(); |
| |
| for (int i = 0; i < args.n_prefetch_match_metrics; ++i) { |
| ret->prefetch_match_metrics_list.push_back( |
| std::make_unique<PrefetchMatchMetrics>()); |
| } |
| |
| return ret; |
| } |
| |
| base::TimeTicks Millis(int ms) { |
| return base::TimeTicks::UnixEpoch() + base::Milliseconds(ms); |
| } |
| |
| // Scenario: |
| // |
| // - Navigation A started. |
| // - A committed. |
| TEST(PreloadServingMetricsTest, NavigationWithoutPreload) { |
| base::test::ScopedFeatureList feature_list; |
| feature_list.InitWithFeaturesAndParameters( |
| { |
| { |
| features::kPrerender2FallbackPrefetchSpecRules, |
| { |
| {"kPrerender2FallbackUsePreloadServingMetrics", "true"}, |
| }, |
| }, |
| }, |
| {}); |
| base::HistogramTester histogram_tester; |
| |
| auto log = MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 0}); |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prerender_initial_preload_serving_metrics = nullptr; |
| |
| log->RecordMetricsForNonPrerenderNavigationCommitted(); |
| log->RecordFirstContentfulPaint(base::Milliseconds(334)); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics.Count", |
| 0, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch", |
| 0, 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.PotentialCandidateServingResult.Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "ActualMatchThen.TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.WithAheadOfPrerender.PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithoutPreload", |
| base::Milliseconds(334), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrefetch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrerender", |
| 0); |
| } |
| |
| // Scenario: |
| // |
| // - Prefetch A is triggered. |
| // - Navigation B started. |
| // - B is blocked by A. |
| // - A succeeded. |
| // - It unblocks B. |
| // - B committed. |
| TEST(PreloadServingMetricsTest, NavigationWithPrefetch) { |
| base::test::ScopedFeatureList feature_list; |
| feature_list.InitWithFeaturesAndParameters( |
| { |
| { |
| features::kPrerender2FallbackPrefetchSpecRules, |
| { |
| {"kPrerender2FallbackUsePreloadServingMetrics", "true"}, |
| }, |
| }, |
| }, |
| {}); |
| base::HistogramTester histogram_tester; |
| |
| auto log = MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log->prefetch_match_metrics_list[0]->time_match_start = Millis(42); |
| log->prefetch_match_metrics_list[0]->time_match_end = Millis(57); |
| log->prefetch_match_metrics_list[0]->n_initial_candidates = 1; |
| log->prefetch_match_metrics_list[0]->n_initial_candidates_block_until_head = |
| 1; |
| log->prefetch_match_metrics_list[0]->prefetch_container_metrics = |
| std::make_unique<PrefetchContainerMetrics>(); |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_added_to_prefetch_service = Millis(10); |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_initial_eligibility_got = Millis(20); |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_prefetch_started = Millis(30); |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_url_request_started = Millis(40); |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_header_determined_successfully = |
| Millis(500000); |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_prefetch_completed_successfully = |
| std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = |
| PrefetchPotentialCandidateServingResult::kServed; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = nullptr; |
| log->prefetch_match_metrics_list[0]->prerender_debug_metrics = nullptr; |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prerender_initial_preload_serving_metrics = nullptr; |
| |
| log->RecordMetricsForNonPrerenderNavigationCommitted(); |
| log->RecordFirstContentfulPaint(base::Milliseconds(334)); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidates", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidatesBlockUntilHead", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.IsActualMatch", |
| 1, 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration", |
| Millis(57) - Millis(42), 1); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForActualMatch", |
| Millis(57) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "ActualMatchThen.TimeFromPrefetchContainerAddedToMatchStart", |
| Millis(42) - Millis(10), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.WithAheadOfPrerender.PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithoutPreload", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrefetch", |
| base::Milliseconds(334), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrerender", |
| 0); |
| } |
| |
| // Scenario: |
| // |
| // - Prefetch A is triggered. |
| // - Prerender B is triggered. |
| // - B is blocked by A. |
| // - Navigation C started. |
| // - C is blocked by B. |
| // - A succeeded. |
| // - It unblocks B. |
| // - B committed. |
| // - C commmtted. |
| TEST(PreloadServingMetricsTest, |
| NavigationWithPrerenderWithPrefetchAheadOfPrerender) { |
| base::test::ScopedFeatureList feature_list; |
| feature_list.InitWithFeaturesAndParameters( |
| { |
| { |
| features::kPrerender2FallbackPrefetchSpecRules, |
| { |
| {"kPrerender2FallbackUsePreloadServingMetrics", "true"}, |
| }, |
| }, |
| }, |
| {}); |
| base::HistogramTester histogram_tester; |
| |
| auto log_prerender = |
| MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_start = |
| Millis(3042); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_end = Millis(3057); |
| log_prerender->prefetch_match_metrics_list[0]->n_initial_candidates = 1; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->n_initial_candidates_block_until_head = 1; |
| log_prerender->prefetch_match_metrics_list[0]->prefetch_container_metrics = |
| std::make_unique<PrefetchContainerMetrics>(); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_added_to_prefetch_service = Millis(10); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_initial_eligibility_got = Millis(200); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_prefetch_started = Millis(3000); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_url_request_started = Millis(40000); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_header_determined_successfully = |
| Millis(500000); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics->time_prefetch_completed_successfully = |
| std::nullopt; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = |
| PrefetchPotentialCandidateServingResult::kServed; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| std::nullopt; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = nullptr; |
| // Actually, this case should have non null |
| // `prerender_debug_metrics`, but we omit it as we |
| // don't check the UMAs in test. |
| log_prerender->prefetch_match_metrics_list[0]->prerender_debug_metrics = |
| nullptr; |
| log_prerender->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log_prerender->prerender_initial_preload_serving_metrics = nullptr; |
| auto log = MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 0}); |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prerender_initial_preload_serving_metrics = std::move(log_prerender); |
| |
| log->RecordMetricsForNonPrerenderNavigationCommitted(); |
| log->RecordFirstContentfulPaint(base::Milliseconds(334)); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics.Count", |
| 0, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch", |
| false, 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PreloadServingMetrics." |
| "ForNavigationCommitted.PrefetchMatchMetrics.PotentialMatchThen." |
| "IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PreloadServingMetrics." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "ActualMatchThen.TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.WithAheadOfPrerender.PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| PrefetchPotentialCandidateServingResult::kServed, 1); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| Millis(3057) - Millis(3042), 1); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| Millis(3057) - Millis(3042), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| Millis(3042) - Millis(10), 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| false, 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithoutPreload", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrefetch", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrerender", |
| base::Milliseconds(334), 1); |
| } |
| |
| // Scenario: |
| // |
| // - Prefetch A is triggered. |
| // - Prerender B is triggered. |
| // - B is blocked by A. |
| // - Navigation C started. |
| // - C is blocked by B. |
| // - A failed. (Timeout of `PrefetchStreamingURLLoader`) |
| // - It unblocks B. |
| // - B failed due to the prefetch failure. |
| // - C passes prefech matching, not blocked by A as it has been failed. |
| // - C falls back to network. |
| TEST(PreloadServingMetricsTest, |
| PrefetchTriggeredPrerenderTriggeredNavigationStartedPrefetchFailed) { |
| base::test::ScopedFeatureList feature_list; |
| feature_list.InitWithFeaturesAndParameters( |
| { |
| { |
| features::kPrerender2FallbackPrefetchSpecRules, |
| { |
| {"kPrerender2FallbackUsePreloadServingMetrics", "true"}, |
| }, |
| }, |
| }, |
| {}); |
| base::HistogramTester histogram_tester; |
| |
| auto log_prerender = |
| MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_start = Millis(42); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_end = Millis(1057); |
| log_prerender->prefetch_match_metrics_list[0]->n_initial_candidates = 1; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->n_initial_candidates_block_until_head = 1; |
| log_prerender->prefetch_match_metrics_list[0]->prefetch_container_metrics = |
| nullptr; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = |
| std::make_unique<PrefetchContainerMetrics>(); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_added_to_prefetch_service = Millis(10); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_initial_eligibility_got = Millis(20); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender->time_prefetch_started = |
| Millis(300); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_url_request_started = Millis(400); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_header_determined_successfully = std::nullopt; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_prefetch_completed_successfully = std::nullopt; |
| // Actually, this case should have non null |
| // `prerender_debug_metrics`, but we omit it as we |
| // don't check the UMAs in test. |
| log_prerender->prefetch_match_metrics_list[0]->prerender_debug_metrics = |
| nullptr; |
| log_prerender->is_prerender_aborted_by_prerender_url_loader_throttle = true; |
| log_prerender->prerender_initial_preload_serving_metrics = nullptr; |
| auto log = MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log->prefetch_match_metrics_list[0]->time_match_start = Millis(1157); |
| log->prefetch_match_metrics_list[0]->time_match_end = Millis(1157); |
| log->prefetch_match_metrics_list[0]->n_initial_candidates = 0; |
| log->prefetch_match_metrics_list[0]->n_initial_candidates_block_until_head = |
| 0; |
| log->prefetch_match_metrics_list[0]->prefetch_container_metrics = nullptr; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = nullptr; |
| log->prefetch_match_metrics_list[0]->prerender_debug_metrics = nullptr; |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prerender_initial_preload_serving_metrics = nullptr; |
| |
| log_prerender->RecordMetricsForPrerenderInitialNavigationFailed(); |
| log->RecordMetricsForNonPrerenderNavigationCommitted(); |
| log->RecordFirstContentfulPaint(base::Milliseconds(2157)); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch", |
| false, 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PreloadServingMetrics." |
| "ForNavigationCommitted.PrefetchMatchMetrics.PotentialMatchThen." |
| "IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PreloadServingMetrics." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "ActualMatchThen.TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.WithAheadOfPrerender.PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| false, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed, 1); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| Millis(1057) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| Millis(1057) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed, 1); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "PotentialCandidateServingResult.Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.IsPotentialMatch." |
| "WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "WithAheadOfPrerender.PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithoutPreload", |
| base::Milliseconds(2157), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrefetch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrerender", |
| 0); |
| } |
| |
| // Variant of PrefetchTriggeredPrerenderTriggeredNavigationStartedPrefetchFailed |
| // |
| // Prefetch matching took greater than or equal to 10000ms. |
| TEST( |
| PreloadServingMetricsTest, |
| PrefetchTriggeredPrerenderTriggeredNavigationStartedPrefetchFailedDurationGe10000) { |
| base::test::ScopedFeatureList feature_list; |
| feature_list.InitWithFeaturesAndParameters( |
| { |
| { |
| features::kPrerender2FallbackPrefetchSpecRules, |
| { |
| {"kPrerender2FallbackUsePreloadServingMetrics", "true"}, |
| }, |
| }, |
| }, |
| {}); |
| base::HistogramTester histogram_tester; |
| |
| auto log_prerender = |
| MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_start = Millis(42); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_end = Millis(10057); |
| log_prerender->prefetch_match_metrics_list[0]->n_initial_candidates = 1; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->n_initial_candidates_block_until_head = 1; |
| log_prerender->prefetch_match_metrics_list[0]->prefetch_container_metrics = |
| nullptr; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = |
| std::make_unique<PrefetchContainerMetrics>(); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_added_to_prefetch_service = Millis(10); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_initial_eligibility_got = Millis(200); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender->time_prefetch_started = |
| Millis(3000); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_url_request_started = Millis(40000); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_header_determined_successfully = std::nullopt; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender |
| ->time_prefetch_completed_successfully = std::nullopt; |
| // Actually, this case should have non null |
| // `prerender_debug_metrics`, but we omit it as we |
| // don't check the UMAs in test. |
| log_prerender->prefetch_match_metrics_list[0]->prerender_debug_metrics = |
| nullptr; |
| log_prerender->is_prerender_aborted_by_prerender_url_loader_throttle = true; |
| log_prerender->prerender_initial_preload_serving_metrics = nullptr; |
| auto log = MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log->prefetch_match_metrics_list[0]->time_match_start = Millis(10157); |
| log->prefetch_match_metrics_list[0]->time_match_end = Millis(10157); |
| log->prefetch_match_metrics_list[0]->n_initial_candidates = 0; |
| log->prefetch_match_metrics_list[0]->n_initial_candidates_block_until_head = |
| 0; |
| log->prefetch_match_metrics_list[0]->prefetch_container_metrics = nullptr; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = nullptr; |
| log->prefetch_match_metrics_list[0]->prerender_debug_metrics = nullptr; |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prerender_initial_preload_serving_metrics = nullptr; |
| |
| log_prerender->RecordMetricsForPrerenderInitialNavigationFailed(); |
| log->RecordMetricsForNonPrerenderNavigationCommitted(); |
| log->RecordFirstContentfulPaint(base::Milliseconds(10334)); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch", |
| false, 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PreloadServingMetrics." |
| "ForNavigationCommitted.PrefetchMatchMetrics.PotentialMatchThen." |
| "IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.PotentialCandidateServingResult.Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "ActualMatchThen.TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForNavigationCommitted.PrefetchMatchMetrics." |
| "PotentialMatchThen.WithAheadOfPrerender.PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.Count", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationUsed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| 0); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.NumberOfInitialCandidates", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.IsActualMatch", |
| false, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.PotentialCandidateServingResult." |
| "Last", |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed, 1); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration", |
| Millis(10057) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.MatchDuration.ForNotActualMatch", |
| Millis(10057) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.IsPotentialMatch.WithAheadOfPrerender", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "PrefetchMatchMetrics.PotentialMatchThen.WithAheadOfPrerender." |
| "PotentialCandidateServingResult", |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed, 1); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.IsPotentialMatch", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidates", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "NumberOfInitialCandidatesBlockUntilHead", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "IsActualMatch", |
| false, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "PotentialCandidateServingResult.Last", |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed, 1); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "MatchDuration", |
| Millis(10057) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "MatchDuration.ForActualMatch", |
| 0); |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "MatchDuration.ForNotActualMatch", |
| Millis(10057) - Millis(42), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.ActualMatchThen." |
| "TimeFromPrefetchContainerAddedToMatchStart", |
| 0); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.IsPotentialMatch." |
| "WithAheadOfPrerender", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "WithMatchDurationGe10000.PrefetchMatchMetrics.PotentialMatchThen." |
| "WithAheadOfPrerender.PotentialCandidateServingResult", |
| PrefetchPotentialCandidateServingResult::kNotServedLoadFailed, 1); |
| |
| histogram_tester.ExpectUniqueTimeSample( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithoutPreload", |
| base::Milliseconds(10334), 1); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrefetch", |
| 0); |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.PageLoad.Clients.PaintTiming." |
| "NavigationToFirstContentfulPaint.WithPrerender", |
| 0); |
| } |
| |
| // Check for `PrefetchMatchPrerenderDebugMetrics` |
| // |
| // Scenario: |
| // |
| // - Prefetch A is triggered. |
| // - Prerender B is triggered. |
| // - But B is not blocked by prefech matching as A is not |
| // `OnPrefetchStarted()`. (We don't expect this case occurs if |
| // `UsePrefetchPrerenderIntegration()`.) |
| // - B is cancelled by `PrerenderURLLoaderThrottle`. |
| // - Navigation C started. |
| // - C falls back to network. |
| TEST(PreloadServingMetricsTest, PrefetchMatchPrerenderDebugMetrics) { |
| base::test::ScopedFeatureList feature_list; |
| feature_list.InitWithFeaturesAndParameters( |
| { |
| { |
| features::kPrerender2FallbackPrefetchSpecRules, |
| { |
| {"kPrerender2FallbackUsePreloadServingMetrics", "true"}, |
| }, |
| }, |
| }, |
| {}); |
| base::HistogramTester histogram_tester; |
| |
| auto log_prerender = |
| MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_start = Millis(42); |
| log_prerender->prefetch_match_metrics_list[0]->time_match_end = Millis(43); |
| log_prerender->prefetch_match_metrics_list[0]->n_initial_candidates = 0; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->n_initial_candidates_block_until_head = 0; |
| log_prerender->prefetch_match_metrics_list[0]->prefetch_container_metrics = |
| nullptr; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = std::nullopt; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| std::nullopt; |
| // `prefetch_container_metrics_ahead_of_prerender` is null as it is not |
| // `PrefetchMatchResolver::RegisterCandidate()`ed. |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = nullptr; |
| log_prerender->prerender_initial_preload_serving_metrics = nullptr; |
| log_prerender->prefetch_match_metrics_list[0]->prerender_debug_metrics = |
| std::make_unique<PrefetchMatchPrerenderDebugMetrics>(); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prerender_debug_metrics->prefetch_ahead_of_prerender_debug_metrics = |
| std::make_unique<PrefetchMatchPrefetchAheadOfPrerenderDebugMetrics>(); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prerender_debug_metrics->prefetch_ahead_of_prerender_debug_metrics |
| ->prefetch_status = PrefetchStatus::kPrefetchNotStarted; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prerender_debug_metrics->prefetch_ahead_of_prerender_debug_metrics |
| ->servable_state = PrefetchServableState::kNotServable; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prerender_debug_metrics->prefetch_ahead_of_prerender_debug_metrics |
| ->match_resolver_action = PrefetchMatchResolverAction( |
| PrefetchMatchResolverAction::ActionKind::kDrop, |
| PrefetchContainer::LoadState::kEligible, |
| /*is_expired=*/std::nullopt); |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prerender_debug_metrics->prefetch_ahead_of_prerender_debug_metrics |
| ->queue_size = 5; |
| log_prerender->prefetch_match_metrics_list[0] |
| ->prerender_debug_metrics->prefetch_ahead_of_prerender_debug_metrics |
| ->queue_index = 3; |
| log_prerender->is_prerender_aborted_by_prerender_url_loader_throttle = true; |
| auto log = MakeSkeletonPreloadServingMetrics({.n_prefetch_match_metrics = 1}); |
| log->prefetch_match_metrics_list[0]->time_match_start = Millis(10157); |
| log->prefetch_match_metrics_list[0]->time_match_end = Millis(10157); |
| log->prefetch_match_metrics_list[0]->n_initial_candidates = 0; |
| log->prefetch_match_metrics_list[0]->n_initial_candidates_block_until_head = |
| 0; |
| log->prefetch_match_metrics_list[0]->prefetch_container_metrics = nullptr; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_last = std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_potential_candidate_serving_result_ahead_of_prerender = |
| std::nullopt; |
| log->prefetch_match_metrics_list[0] |
| ->prefetch_container_metrics_ahead_of_prerender = nullptr; |
| log->prefetch_match_metrics_list[0]->prerender_debug_metrics = nullptr; |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prefetch_match_metrics_list[0]->prerender_debug_metrics = nullptr; |
| log->is_prerender_aborted_by_prerender_url_loader_throttle = false; |
| log->prerender_initial_preload_serving_metrics = nullptr; |
| |
| log_prerender->RecordMetricsForPrerenderInitialNavigationFailed(); |
| log->RecordMetricsForNonPrerenderNavigationCommitted(); |
| log->RecordFirstContentfulPaint(base::Milliseconds(10334)); |
| |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.Count", |
| 1, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.IsPotentialMatch", |
| false, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.ExistsPaop", |
| true, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.ExistsPaopThen." |
| "PrefetchStatus", |
| PrefetchStatus::kPrefetchNotStarted, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.ExistsPaopThen." |
| "ServableStateAndMatcherAction", |
| // 4 = PrefetchServableState::kNotServable |
| // 1 = PrefetchMatchResolverAction::ActionKind::kDrop |
| // 2 = PrefetchContainer::LoadState::kEligible |
| // 1 = is_expired == false |
| 4121, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.ExistsPaopThen." |
| "PotentialCandidateServingResultAndServableStateAndMatcherAction", |
| // 13 = PrefetchPotentialCandidateServingResult::kNotServedNoCandidates |
| // 4 = PrefetchServableState::kNotServable |
| // 1 = PrefetchMatchResolverAction::ActionKind::kDrop |
| // 2 = PrefetchContainer::LoadState::kEligible |
| // 1 = is_expired == false |
| 134121, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.ExistsPaopThen.QueueSize", |
| 5, 1); |
| histogram_tester.ExpectUniqueSample( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match0.PrefetchMatchMetrics.ExistsPaopThen." |
| "QueueIndexPlus1", |
| 4, 1); |
| |
| histogram_tester.ExpectTotalCount( |
| "PreloadServingMetrics.ForPrerenderInitialNavigationFailed." |
| "FallbackAborted.Match1.PrefetchMatchMetrics.Count", |
| 0); |
| } |
| |
| } // namespace content |
