1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #include "include/libplatform/libplatform.h"
38 #include "src/compiler.h"
39 #include "src/scanner-character-streams.h"
40 #include "tools/shell-utils.h"
41 #include "src/parser.h"
42 #include "src/preparse-data-format.h"
43 #include "src/preparse-data.h"
44 #include "src/preparser.h"
46 using namespace v8::internal;
48 class StringResource8 : public v8::String::ExternalOneByteStringResource {
50 StringResource8(const char* data, int length)
51 : data_(data), length_(length) { }
52 virtual size_t length() const { return length_; }
53 virtual const char* data() const { return data_; }
60 std::pair<v8::base::TimeDelta, v8::base::TimeDelta> RunBaselineParser(
61 const char* fname, Encoding encoding, int repeat, v8::Isolate* isolate,
62 v8::Handle<v8::Context> context) {
64 const byte* source = ReadFileAndRepeat(fname, &length, repeat);
65 v8::Handle<v8::String> source_handle;
68 source_handle = v8::String::NewFromUtf8(
69 isolate, reinterpret_cast<const char*>(source));
73 source_handle = v8::String::NewFromTwoByte(
74 isolate, reinterpret_cast<const uint16_t*>(source),
75 v8::String::kNormalString, length / 2);
79 StringResource8* string_resource =
80 new StringResource8(reinterpret_cast<const char*>(source), length);
81 source_handle = v8::String::NewExternal(isolate, string_resource);
85 v8::base::TimeDelta parse_time1, parse_time2;
86 Handle<Script> script = Isolate::Current()->factory()->NewScript(
87 v8::Utils::OpenHandle(*source_handle));
88 i::ScriptData* cached_data_impl = NULL;
89 // First round of parsing (produce data to cache).
92 ParseInfo info(&zone, script);
94 info.set_cached_data(&cached_data_impl);
95 info.set_compile_options(v8::ScriptCompiler::kProduceParserCache);
96 v8::base::ElapsedTimer timer;
98 // Allow lazy parsing; otherwise we won't produce cached data.
99 info.set_allow_lazy_parsing();
100 bool success = Parser::ParseStatic(&info);
101 parse_time1 = timer.Elapsed();
103 fprintf(stderr, "Parsing failed\n");
104 return std::make_pair(v8::base::TimeDelta(), v8::base::TimeDelta());
107 // Second round of parsing (consume cached data).
110 ParseInfo info(&zone, script);
112 info.set_cached_data(&cached_data_impl);
113 info.set_compile_options(v8::ScriptCompiler::kConsumeParserCache);
114 v8::base::ElapsedTimer timer;
116 // Allow lazy parsing; otherwise cached data won't help.
117 info.set_allow_lazy_parsing();
118 bool success = Parser::ParseStatic(&info);
119 parse_time2 = timer.Elapsed();
121 fprintf(stderr, "Parsing failed\n");
122 return std::make_pair(v8::base::TimeDelta(), v8::base::TimeDelta());
125 return std::make_pair(parse_time1, parse_time2);
129 int main(int argc, char* argv[]) {
130 v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
131 v8::V8::InitializeICU();
132 v8::Platform* platform = v8::platform::CreateDefaultPlatform();
133 v8::V8::InitializePlatform(platform);
134 v8::V8::Initialize();
135 Encoding encoding = LATIN1;
136 std::vector<std::string> fnames;
137 std::string benchmark;
139 for (int i = 0; i < argc; ++i) {
140 if (strcmp(argv[i], "--latin1") == 0) {
142 } else if (strcmp(argv[i], "--utf8") == 0) {
144 } else if (strcmp(argv[i], "--utf16") == 0) {
146 } else if (strncmp(argv[i], "--benchmark=", 12) == 0) {
147 benchmark = std::string(argv[i]).substr(12);
148 } else if (strncmp(argv[i], "--repeat=", 9) == 0) {
149 std::string repeat_str = std::string(argv[i]).substr(9);
150 repeat = atoi(repeat_str.c_str());
151 } else if (i > 0 && argv[i][0] != '-') {
152 fnames.push_back(std::string(argv[i]));
155 v8::Isolate* isolate = v8::Isolate::New();
157 v8::Isolate::Scope isolate_scope(isolate);
158 v8::HandleScope handle_scope(isolate);
159 v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
160 v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
161 DCHECK(!context.IsEmpty());
163 v8::Context::Scope scope(context);
164 double first_parse_total = 0;
165 double second_parse_total = 0;
166 for (size_t i = 0; i < fnames.size(); i++) {
167 std::pair<v8::base::TimeDelta, v8::base::TimeDelta> time =
168 RunBaselineParser(fnames[i].c_str(), encoding, repeat, isolate,
170 first_parse_total += time.first.InMillisecondsF();
171 second_parse_total += time.second.InMillisecondsF();
173 if (benchmark.empty()) benchmark = "Baseline";
174 printf("%s(FirstParseRunTime): %.f ms\n", benchmark.c_str(),
176 printf("%s(SecondParseRunTime): %.f ms\n", benchmark.c_str(),
181 v8::V8::ShutdownPlatform();