gecko/testing/mochitest/tests/SimpleTest/MemoryStats.js

83 lines
3.3 KiB
JavaScript

/* -*- js-indent-level: 4; tab-width: 4; indent-tabs-mode: nil -*- */
/* vim:set ts=4 sw=4 sts=4 et: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
var MemoryStats = {};
/**
* Statistics that we want to retrieve and display after every test is
* done. The keys of this table are intended to be identical to the
* relevant attributes of nsIMemoryReporterManager. However, since
* nsIMemoryReporterManager doesn't necessarily support all these
* statistics in all build configurations, we also use this table to
* tell us whether statistics are supported or not.
*/
var MEM_STAT_UNKNOWN = 0;
var MEM_STAT_UNSUPPORTED = 1;
var MEM_STAT_SUPPORTED = 2;
MemoryStats._hasMemoryStatistics = {}
MemoryStats._hasMemoryStatistics.vsize = MEM_STAT_UNKNOWN;
MemoryStats._hasMemoryStatistics.vsizeMaxContiguous = MEM_STAT_UNKNOWN;
MemoryStats._hasMemoryStatistics.residentFast = MEM_STAT_UNKNOWN;
MemoryStats._hasMemoryStatistics.heapAllocated = MEM_STAT_UNKNOWN;
MemoryStats._getService = function (className, interfaceName) {
var service;
try {
service = Cc[className].getService(Ci[interfaceName]);
} catch (e) {
service = SpecialPowers.Cc[className]
.getService(SpecialPowers.Ci[interfaceName]);
}
return service;
}
MemoryStats.dump = function (dumpFn,
testNumber,
testURL,
dumpOutputDirectory,
dumpAboutMemory,
dumpDMD) {
var mrm = MemoryStats._getService("@mozilla.org/memory-reporter-manager;1",
"nsIMemoryReporterManager");
for (var stat in MemoryStats._hasMemoryStatistics) {
var supported = MemoryStats._hasMemoryStatistics[stat];
var firstAccess = false;
if (supported == MEM_STAT_UNKNOWN) {
firstAccess = true;
try {
var value = mrm[stat];
supported = MEM_STAT_SUPPORTED;
} catch (e) {
supported = MEM_STAT_UNSUPPORTED;
}
MemoryStats._hasMemoryStatistics[stat] = supported;
}
if (supported == MEM_STAT_SUPPORTED) {
dumpFn("TEST-INFO | MEMORY STAT " + stat + " after test: " + mrm[stat]);
} else if (firstAccess) {
dumpFn("TEST-INFO | MEMORY STAT " + stat + " not supported in this build configuration.");
}
}
if (dumpAboutMemory) {
var dumpfile = dumpOutputDirectory + "/about-memory-" + testNumber + ".json.gz";
dumpFn("TEST-INFO | " + testURL + " | MEMDUMP-START " + dumpfile);
var md = MemoryStats._getService("@mozilla.org/memory-info-dumper;1",
"nsIMemoryInfoDumper");
md.dumpMemoryReportsToNamedFile(dumpfile, function () {
dumpFn("TEST-INFO | " + testURL + " | MEMDUMP-END");
}, null);
}
if (dumpDMD && typeof(DMDReportAndDump) != undefined) {
var dumpfile = dumpOutputDirectory + "/dmd-" + testNumber + ".txt";
dumpFn("TEST-INFO | " + testURL + " | DMD-DUMP " + dumpfile);
DMDReportAndDump(dumpfile);
}
};