v8/tools/tickprocessor-driver.js
jkummerow feffccca22 Profiler improvements
(1) --prof-cpp: Collects ticks like --prof, but ignores code creation events to reduce distortion (so all JS ticks will be "unaccounted"). Useful for profiling C++ code.
(2) --timed-range flag for tick processor: Ignores ticks before the first and after the last call to Date.now(). Useful for focusing on the timed section of a test.

Review URL: https://codereview.chromium.org/802333002

Cr-Commit-Position: refs/heads/master@{#26168}
2015-01-20 16:06:09 +00:00

82 lines
3.0 KiB
JavaScript

// Copyright 2012 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.
// Tick Processor's code flow.
function processArguments(args) {
var processor = new ArgumentsProcessor(args);
if (processor.parse()) {
return processor.result();
} else {
processor.printUsageAndExit();
}
}
function initSourceMapSupport() {
// Pull dev tools source maps into our name space.
SourceMap = WebInspector.SourceMap;
// Overwrite the load function to load scripts synchronously.
SourceMap.load = function(sourceMapURL) {
var content = readFile(sourceMapURL);
var sourceMapObject = (JSON.parse(content));
return new SourceMap(sourceMapURL, sourceMapObject);
};
}
var entriesProviders = {
'unix': UnixCppEntriesProvider,
'windows': WindowsCppEntriesProvider,
'mac': MacCppEntriesProvider
};
var params = processArguments(arguments);
var sourceMap = null;
if (params.sourceMap) {
initSourceMapSupport();
sourceMap = SourceMap.load(params.sourceMap);
}
var snapshotLogProcessor;
if (params.snapshotLogFileName) {
snapshotLogProcessor = new SnapshotLogProcessor();
snapshotLogProcessor.processLogFile(params.snapshotLogFileName);
}
var tickProcessor = new TickProcessor(
new (entriesProviders[params.platform])(params.nm, params.targetRootFS),
params.separateIc,
params.callGraphSize,
params.ignoreUnknown,
params.stateFilter,
snapshotLogProcessor,
params.distortion,
params.range,
sourceMap,
params.timedRange);
tickProcessor.processLogFile(params.logFileName);
tickProcessor.printStatistics();