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
4 // met:
5 //
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.
15 //
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.
27
28 #include <assert.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string>
33 #include <vector>
34 #include "src/v8.h"
35
36 #include "include/libplatform/libplatform.h"
37 #include "src/api.h"
38 #include "src/compiler.h"
39 #include "src/parsing/parse-info.h"
40 #include "src/parsing/parser.h"
41 #include "src/parsing/preparse-data-format.h"
42 #include "src/parsing/preparse-data.h"
43 #include "src/parsing/preparser.h"
44 #include "src/parsing/scanner-character-streams.h"
45 #include "tools/shell-utils.h"
46
47 using namespace v8::internal;
48
49 class StringResource8 : public v8::String::ExternalOneByteStringResource {
50 public:
StringResource8(const char * data,int length)51 StringResource8(const char* data, int length)
52 : data_(data), length_(length) { }
length() const53 virtual size_t length() const { return length_; }
data() const54 virtual const char* data() const { return data_; }
55
56 private:
57 const char* data_;
58 int length_;
59 };
60
RunBaselineParser(const char * fname,Encoding encoding,int repeat,v8::Isolate * isolate,v8::Local<v8::Context> context)61 std::pair<v8::base::TimeDelta, v8::base::TimeDelta> RunBaselineParser(
62 const char* fname, Encoding encoding, int repeat, v8::Isolate* isolate,
63 v8::Local<v8::Context> context) {
64 int length = 0;
65 const byte* source = ReadFileAndRepeat(fname, &length, repeat);
66 v8::Local<v8::String> source_handle;
67 switch (encoding) {
68 case UTF8: {
69 source_handle = v8::String::NewFromUtf8(
70 isolate, reinterpret_cast<const char*>(source),
71 v8::NewStringType::kNormal).ToLocalChecked();
72 break;
73 }
74 case UTF16: {
75 source_handle =
76 v8::String::NewFromTwoByte(
77 isolate, reinterpret_cast<const uint16_t*>(source),
78 v8::NewStringType::kNormal, length / 2).ToLocalChecked();
79 break;
80 }
81 case LATIN1: {
82 StringResource8* string_resource =
83 new StringResource8(reinterpret_cast<const char*>(source), length);
84 source_handle = v8::String::NewExternalOneByte(isolate, string_resource)
85 .ToLocalChecked();
86 break;
87 }
88 }
89 v8::base::TimeDelta parse_time1, parse_time2;
90 Handle<Script> script =
91 reinterpret_cast<i::Isolate*>(isolate)->factory()->NewScript(
92 v8::Utils::OpenHandle(*source_handle));
93 i::ScriptData* cached_data_impl = NULL;
94 // First round of parsing (produce data to cache).
95 {
96 Zone zone(reinterpret_cast<i::Isolate*>(isolate)->allocator(), ZONE_NAME);
97 ParseInfo info(&zone, script);
98 info.set_cached_data(&cached_data_impl);
99 info.set_compile_options(v8::ScriptCompiler::kProduceParserCache);
100 v8::base::ElapsedTimer timer;
101 timer.Start();
102 // Allow lazy parsing; otherwise we won't produce cached data.
103 info.set_allow_lazy_parsing();
104 bool success = Parser::ParseStatic(&info);
105 parse_time1 = timer.Elapsed();
106 if (!success) {
107 fprintf(stderr, "Parsing failed\n");
108 return std::make_pair(v8::base::TimeDelta(), v8::base::TimeDelta());
109 }
110 }
111 // Second round of parsing (consume cached data).
112 {
113 Zone zone(reinterpret_cast<i::Isolate*>(isolate)->allocator(), ZONE_NAME);
114 ParseInfo info(&zone, script);
115 info.set_cached_data(&cached_data_impl);
116 info.set_compile_options(v8::ScriptCompiler::kConsumeParserCache);
117 v8::base::ElapsedTimer timer;
118 timer.Start();
119 // Allow lazy parsing; otherwise cached data won't help.
120 info.set_allow_lazy_parsing();
121 bool success = Parser::ParseStatic(&info);
122 parse_time2 = timer.Elapsed();
123 if (!success) {
124 fprintf(stderr, "Parsing failed\n");
125 return std::make_pair(v8::base::TimeDelta(), v8::base::TimeDelta());
126 }
127 }
128 return std::make_pair(parse_time1, parse_time2);
129 }
130
131
main(int argc,char * argv[])132 int main(int argc, char* argv[]) {
133 v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
134 v8::V8::InitializeICUDefaultLocation(argv[0]);
135 v8::Platform* platform = v8::platform::CreateDefaultPlatform();
136 v8::V8::InitializePlatform(platform);
137 v8::V8::Initialize();
138 v8::V8::InitializeExternalStartupData(argv[0]);
139
140 Encoding encoding = LATIN1;
141 std::vector<std::string> fnames;
142 std::string benchmark;
143 int repeat = 1;
144 for (int i = 0; i < argc; ++i) {
145 if (strcmp(argv[i], "--latin1") == 0) {
146 encoding = LATIN1;
147 } else if (strcmp(argv[i], "--utf8") == 0) {
148 encoding = UTF8;
149 } else if (strcmp(argv[i], "--utf16") == 0) {
150 encoding = UTF16;
151 } else if (strncmp(argv[i], "--benchmark=", 12) == 0) {
152 benchmark = std::string(argv[i]).substr(12);
153 } else if (strncmp(argv[i], "--repeat=", 9) == 0) {
154 std::string repeat_str = std::string(argv[i]).substr(9);
155 repeat = atoi(repeat_str.c_str());
156 } else if (i > 0 && argv[i][0] != '-') {
157 fnames.push_back(std::string(argv[i]));
158 }
159 }
160 v8::Isolate::CreateParams create_params;
161 create_params.array_buffer_allocator =
162 v8::ArrayBuffer::Allocator::NewDefaultAllocator();
163 v8::Isolate* isolate = v8::Isolate::New(create_params);
164 {
165 v8::Isolate::Scope isolate_scope(isolate);
166 v8::HandleScope handle_scope(isolate);
167 v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
168 v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
169 DCHECK(!context.IsEmpty());
170 {
171 v8::Context::Scope scope(context);
172 double first_parse_total = 0;
173 double second_parse_total = 0;
174 for (size_t i = 0; i < fnames.size(); i++) {
175 std::pair<v8::base::TimeDelta, v8::base::TimeDelta> time =
176 RunBaselineParser(fnames[i].c_str(), encoding, repeat, isolate,
177 context);
178 first_parse_total += time.first.InMillisecondsF();
179 second_parse_total += time.second.InMillisecondsF();
180 }
181 if (benchmark.empty()) benchmark = "Baseline";
182 printf("%s(FirstParseRunTime): %.f ms\n", benchmark.c_str(),
183 first_parse_total);
184 printf("%s(SecondParseRunTime): %.f ms\n", benchmark.c_str(),
185 second_parse_total);
186 }
187 }
188 v8::V8::Dispose();
189 v8::V8::ShutdownPlatform();
190 delete platform;
191 delete create_params.array_buffer_allocator;
192 return 0;
193 }
194