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<!DOCTYPE html>
<!--
Copyright 2015 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<link rel="import" href="/tracing/base/iteration_helpers.html">
<link rel="import" href="/tracing/metrics/system_health/loading_metric.html">
<link rel="import" href="/tracing/mre/function_handle.html">
<link rel="import" href="/tracing/value/value_set.html">
<script>
'use strict';
tr.exportTo('tr.mre', function() {
function v8CallStatsDump(result, model) {
var v8_runtime_map = {};
var totalCount = 0;
var totalTime = 0;
var values = new tr.v.ValueSet();
tr.metrics.sh.loadingMetric(values, model);
var ttiEntries = values.valueDicts.filter(
(dict) => dict.name === 'timeToFirstInteractive');
var numeric = ttiEntries[0].numeric;
if (numeric.running.count > 1) {
throw 'Unable to work with a trace that has more than one navigation';
}
var binsWithSampleDiagnosticMaps = numeric.centralBins.filter(
(bin) => bin.diagnosticMaps.length > 0);
var diagnostic = binsWithSampleDiagnosticMaps[0]
.diagnosticMaps[0]['breakdown'];
var tti = diagnostic.value.interactive;
for (var event of model.getDescendantEvents()) {
if (!(event instanceof tr.model.ThreadSlice) || event.start > tti)
continue;
var v8_runtime = event.args['runtime-call-stats'];
// For older traces, check if we had an arg called 'runtime-call-stat'
// instead.
if (v8_runtime === undefined)
v8_runtime = event.args['runtime-call-stat'];
if (v8_runtime !== undefined) {
try {
var v8_runtime_object = JSON.parse(v8_runtime);
for (var runtime_call in v8_runtime_object) {
// exclude "END" and malformed entries.
if (v8_runtime_object[runtime_call].length == 2) {
if (v8_runtime_map[runtime_call] === undefined) {
v8_runtime_map[runtime_call] = {count: 0, time: 0};
}
var runtime_count = v8_runtime_object[runtime_call][0];
v8_runtime_map[runtime_call].count += runtime_count;
var runtime_time = v8_runtime_object[runtime_call][1] / 1000;
v8_runtime_map[runtime_call].time += runtime_time;
totalCount += runtime_count;
totalTime += runtime_time;
}
}
} catch (e) {
console.warn(e);
}
}
}
for (var i in v8_runtime_map) {
result.addPair(i, {time: Number(v8_runtime_map[i].time).toFixed(2),
count: v8_runtime_map[i].count});
}
result.addPair('Total', {time: Number(totalTime).toFixed(2),
count: totalCount});
}
tr.mre.FunctionRegistry.register(v8CallStatsDump);
// Exporting for tests.
return {
v8CallStatsDump: v8CallStatsDump
};
});
</script>
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