| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_LATENCY_LATENCY_HISTOGRAM_MACROS_H_ |
| #define UI_LATENCY_LATENCY_HISTOGRAM_MACROS_H_ |
| |
| #include "base/metrics/histogram_functions.h" |
| |
| // Check valid timing for start and end latency components. |
| #define CONFIRM_EVENT_TIMES_EXIST(start, end) \ |
| DCHECK(!start.first_event_time.is_null()); \ |
| DCHECK(!end.last_event_time.is_null()); |
| |
| // Event latency that is mostly under 1 second. We should only use 100 buckets |
| // when needed. |
| #define UMA_HISTOGRAM_INPUT_LATENCY_HIGH_RESOLUTION_MICROSECONDS(name, start, \ |
| end) \ |
| CONFIRM_EVENT_TIMES_EXIST(start, end) \ |
| base::UmaHistogramCustomCounts( \ |
| name, \ |
| std::max( \ |
| static_cast<int64_t>(0), \ |
| (end.last_event_time - start.first_event_time).InMicroseconds()), \ |
| 1, 1000000, 100); |
| |
| #define UMA_HISTOGRAM_INPUT_LATENCY_MILLISECONDS(name, start, end) \ |
| CONFIRM_EVENT_TIMES_EXIST(start, end) \ |
| base::UmaHistogramCustomCounts( \ |
| name, \ |
| std::max( \ |
| static_cast<int64_t>(0), \ |
| (end.last_event_time - start.first_event_time).InMilliseconds()), \ |
| 1, 1000, 50); |
| |
| // Long touch/wheel scroll latency component that is mostly under 200ms. |
| #define UMA_HISTOGRAM_SCROLL_LATENCY_LONG_2(name, start, end) \ |
| CONFIRM_EVENT_TIMES_EXIST(start, end) \ |
| base::Histogram::FactoryGet(name, 1000, 200000, 50, \ |
| base::HistogramBase::kUmaTargetedHistogramFlag) \ |
| ->Add(std::max( \ |
| static_cast<int64_t>(0), \ |
| (end.last_event_time - start.first_event_time).InMicroseconds())); |
| |
| // Short touch/wheel scroll latency component that is mostly under 50ms. |
| #define UMA_HISTOGRAM_SCROLL_LATENCY_SHORT_2(name, start, end) \ |
| CONFIRM_EVENT_TIMES_EXIST(start, end) \ |
| base::Histogram::FactoryGet(name, 1, 50000, 50, \ |
| base::HistogramBase::kUmaTargetedHistogramFlag) \ |
| ->Add(std::max( \ |
| static_cast<int64_t>(0), \ |
| (end.last_event_time - start.first_event_time).InMicroseconds())); |
| |
| #endif // UI_LATENCY_LATENCY_HISTOGRAM_MACROS_H_ |