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fix(benchpress): support nested intervals 

Chrome sometimes reports nested `FunctionCall` intervals in the timeline,
which should be ignored for measuring the `script` metric.

Might solve #2116
This commit is contained in:
Tobias Bosch 2015-06-03 09:47:15 -07:00
parent b071b66b45
commit c280fe816c
2 changed files with 47 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
modules/benchpress/src/metric/perflog_metric.ts
View File

@ -168,7 +168,8 @@ export class PerflogMetric extends Metric {
var gcTimeInScript = 0;
var renderTimeInScript = 0;
var intervalStarts = {};
var intervalStarts: StringMap<string, any> = {};
var intervalStartCount: StringMap<string, number> = {};
events.forEach((event) => {
var ph = event['ph'];
var name = event['name'];
@ -187,9 +188,16 @@ export class PerflogMetric extends Metric {
if (isPresent(markStartEvent) && isBlank(markEndEvent) &&
event['pid'] === markStartEvent['pid']) {
if (StringWrapper.equals(ph, 'B') || StringWrapper.equals(ph, 'b')) {
if (isBlank(intervalStarts[name])) {
intervalStartCount[name] = 1;
intervalStarts[name] = event;
} else {
intervalStartCount[name]++;
}
} else if ((StringWrapper.equals(ph, 'E') || StringWrapper.equals(ph, 'e')) &&
isPresent(intervalStarts[name])) {
intervalStartCount[name]--;
if (intervalStartCount[name] === 0) {
var startEvent = intervalStarts[name];
var duration = (event['ts'] - startEvent['ts']);
intervalStarts[name] = null;
@ -217,6 +225,7 @@ export class PerflogMetric extends Metric {
}
}
}
}
});
result['pureScriptTime'] = result['scriptTime'] - gcTimeInScript - renderTimeInScript;
return isPresent(markStartEvent) && isPresent(markEndEvent) ? result : null;

13
modules/benchpress/test/metric/perflog_metric_spec.ts
View File

@ -343,6 +343,19 @@ export function main() {
});
}));
it('should ignore nested intervals', inject([AsyncTestCompleter], (async) => {
aggregate([
eventFactory.start('script', 0),
eventFactory.start('script', 5),
eventFactory.end('script', 10),
eventFactory.end('script', 17)
])
.then((data) => {
expect(data['scriptTime']).toBe(17);
async.done();
});
}));
it('should ignore events from different processed as the start mark',
inject([AsyncTestCompleter], (async) => {
var otherProcessEventFactory = new TraceEventFactory('timeline', 'pid1');