diff options
Diffstat (limited to 'ninja/src/canon_perftest.cc')
-rw-r--r-- | ninja/src/canon_perftest.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/ninja/src/canon_perftest.cc b/ninja/src/canon_perftest.cc new file mode 100644 index 00000000000..59bd18f4526 --- /dev/null +++ b/ninja/src/canon_perftest.cc @@ -0,0 +1,56 @@ +// Copyright 2012 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include <stdio.h> +#include <string.h> + +#include "util.h" +#include "metrics.h" + +const char kPath[] = + "../../third_party/WebKit/Source/WebCore/" + "platform/leveldb/LevelDBWriteBatch.cpp"; + +int main() { + vector<int> times; + string err; + + char buf[200]; + size_t len = strlen(kPath); + strcpy(buf, kPath); + + for (int j = 0; j < 5; ++j) { + const int kNumRepetitions = 2000000; + int64_t start = GetTimeMillis(); + for (int i = 0; i < kNumRepetitions; ++i) { + CanonicalizePath(buf, &len, &err); + } + int delta = (int)(GetTimeMillis() - start); + times.push_back(delta); + } + + int min = times[0]; + int max = times[0]; + float total = 0; + for (size_t i = 0; i < times.size(); ++i) { + total += times[i]; + if (times[i] < min) + min = times[i]; + else if (times[i] > max) + max = times[i]; + } + + printf("min %dms max %dms avg %.1fms\n", + min, max, total / times.size()); +} |