| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <assert.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string> |
| #include <vector> |
| #include "src/v8.h" |
| |
| #include "include/libplatform/libplatform.h" |
| #include "src/api.h" |
| #include "src/compiler.h" |
| #include "src/parsing/scanner-character-streams.h" |
| #include "src/parsing/parser.h" |
| #include "src/parsing/preparse-data-format.h" |
| #include "src/parsing/preparse-data.h" |
| #include "src/parsing/preparser.h" |
| #include "tools/shell-utils.h" |
| |
| using namespace v8::internal; |
| |
| class StringResource8 : public v8::String::ExternalOneByteStringResource { |
| public: |
| StringResource8(const char* data, int length) |
| : data_(data), length_(length) { } |
| virtual size_t length() const { return length_; } |
| virtual const char* data() const { return data_; } |
| |
| private: |
| const char* data_; |
| int length_; |
| }; |
| |
| std::pair<v8::base::TimeDelta, v8::base::TimeDelta> RunBaselineParser( |
| const char* fname, Encoding encoding, int repeat, v8::Isolate* isolate, |
| v8::Local<v8::Context> context) { |
| int length = 0; |
| const byte* source = ReadFileAndRepeat(fname, &length, repeat); |
| v8::Local<v8::String> source_handle; |
| switch (encoding) { |
| case UTF8: { |
| source_handle = v8::String::NewFromUtf8( |
| isolate, reinterpret_cast<const char*>(source), |
| v8::NewStringType::kNormal).ToLocalChecked(); |
| break; |
| } |
| case UTF16: { |
| source_handle = |
| v8::String::NewFromTwoByte( |
| isolate, reinterpret_cast<const uint16_t*>(source), |
| v8::NewStringType::kNormal, length / 2).ToLocalChecked(); |
| break; |
| } |
| case LATIN1: { |
| StringResource8* string_resource = |
| new StringResource8(reinterpret_cast<const char*>(source), length); |
| source_handle = v8::String::NewExternalOneByte(isolate, string_resource) |
| .ToLocalChecked(); |
| break; |
| } |
| } |
| v8::base::TimeDelta parse_time1, parse_time2; |
| Handle<Script> script = |
| reinterpret_cast<i::Isolate*>(isolate)->factory()->NewScript( |
| v8::Utils::OpenHandle(*source_handle)); |
| i::ScriptData* cached_data_impl = NULL; |
| // First round of parsing (produce data to cache). |
| { |
| Zone zone(reinterpret_cast<i::Isolate*>(isolate)->allocator()); |
| ParseInfo info(&zone, script); |
| info.set_global(); |
| info.set_cached_data(&cached_data_impl); |
| info.set_compile_options(v8::ScriptCompiler::kProduceParserCache); |
| v8::base::ElapsedTimer timer; |
| timer.Start(); |
| // Allow lazy parsing; otherwise we won't produce cached data. |
| info.set_allow_lazy_parsing(); |
| bool success = Parser::ParseStatic(&info); |
| parse_time1 = timer.Elapsed(); |
| if (!success) { |
| fprintf(stderr, "Parsing failed\n"); |
| return std::make_pair(v8::base::TimeDelta(), v8::base::TimeDelta()); |
| } |
| } |
| // Second round of parsing (consume cached data). |
| { |
| Zone zone(reinterpret_cast<i::Isolate*>(isolate)->allocator()); |
| ParseInfo info(&zone, script); |
| info.set_global(); |
| info.set_cached_data(&cached_data_impl); |
| info.set_compile_options(v8::ScriptCompiler::kConsumeParserCache); |
| v8::base::ElapsedTimer timer; |
| timer.Start(); |
| // Allow lazy parsing; otherwise cached data won't help. |
| info.set_allow_lazy_parsing(); |
| bool success = Parser::ParseStatic(&info); |
| parse_time2 = timer.Elapsed(); |
| if (!success) { |
| fprintf(stderr, "Parsing failed\n"); |
| return std::make_pair(v8::base::TimeDelta(), v8::base::TimeDelta()); |
| } |
| } |
| return std::make_pair(parse_time1, parse_time2); |
| } |
| |
| |
| int main(int argc, char* argv[]) { |
| v8::V8::SetFlagsFromCommandLine(&argc, argv, true); |
| v8::V8::InitializeICUDefaultLocation(argv[0]); |
| v8::Platform* platform = v8::platform::CreateDefaultPlatform(); |
| v8::V8::InitializePlatform(platform); |
| v8::V8::Initialize(); |
| v8::V8::InitializeExternalStartupData(argv[0]); |
| |
| Encoding encoding = LATIN1; |
| std::vector<std::string> fnames; |
| std::string benchmark; |
| int repeat = 1; |
| for (int i = 0; i < argc; ++i) { |
| if (strcmp(argv[i], "--latin1") == 0) { |
| encoding = LATIN1; |
| } else if (strcmp(argv[i], "--utf8") == 0) { |
| encoding = UTF8; |
| } else if (strcmp(argv[i], "--utf16") == 0) { |
| encoding = UTF16; |
| } else if (strncmp(argv[i], "--benchmark=", 12) == 0) { |
| benchmark = std::string(argv[i]).substr(12); |
| } else if (strncmp(argv[i], "--repeat=", 9) == 0) { |
| std::string repeat_str = std::string(argv[i]).substr(9); |
| repeat = atoi(repeat_str.c_str()); |
| } else if (i > 0 && argv[i][0] != '-') { |
| fnames.push_back(std::string(argv[i])); |
| } |
| } |
| v8::Isolate::CreateParams create_params; |
| create_params.array_buffer_allocator = |
| v8::ArrayBuffer::Allocator::NewDefaultAllocator(); |
| v8::Isolate* isolate = v8::Isolate::New(create_params); |
| { |
| v8::Isolate::Scope isolate_scope(isolate); |
| v8::HandleScope handle_scope(isolate); |
| v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate); |
| v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global); |
| DCHECK(!context.IsEmpty()); |
| { |
| v8::Context::Scope scope(context); |
| double first_parse_total = 0; |
| double second_parse_total = 0; |
| for (size_t i = 0; i < fnames.size(); i++) { |
| std::pair<v8::base::TimeDelta, v8::base::TimeDelta> time = |
| RunBaselineParser(fnames[i].c_str(), encoding, repeat, isolate, |
| context); |
| first_parse_total += time.first.InMillisecondsF(); |
| second_parse_total += time.second.InMillisecondsF(); |
| } |
| if (benchmark.empty()) benchmark = "Baseline"; |
| printf("%s(FirstParseRunTime): %.f ms\n", benchmark.c_str(), |
| first_parse_total); |
| printf("%s(SecondParseRunTime): %.f ms\n", benchmark.c_str(), |
| second_parse_total); |
| } |
| } |
| v8::V8::Dispose(); |
| v8::V8::ShutdownPlatform(); |
| delete platform; |
| delete create_params.array_buffer_allocator; |
| return 0; |
| } |