Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: devtools/server/tests/chrome/chrome.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Memory monitoring actor test</title>
</head>
<body>
<pre id="test">
<script src="memory-helpers.js" type="application/javascript"></script>
<script>
"use strict";
window.onload = function() {
SimpleTest.waitForExplicitFinish();
(async function() {
const { memory, target } = await startServerAndGetSelectedTabMemory();
await memory.attach();
const allocs = [];
let eventsFired = 0;
let intervalId = null;
function onAlloc() {
eventsFired++;
}
function startAllocating() {
intervalId = setInterval(() => {
for (let i = 100000; --i;) {
allocs.push({});
}
}, 1);
}
function stopAllocating() {
clearInterval(intervalId);
}
memory.on("allocations", onAlloc);
await memory.startRecordingAllocations({
drainAllocationsTimeout: 10,
});
await waitUntil(() => eventsFired > 5);
ok(eventsFired > 5,
"Some allocation events fired without allocating much via auto drain");
await memory.stopRecordingAllocations();
// Set a really high auto drain timer so we can test if
// it fires on GC
eventsFired = 0;
const startTime = performance.now();
const drainTimer = 1000000;
await memory.startRecordingAllocations({
drainAllocationsTimeout: drainTimer,
});
startAllocating();
await waitUntil(() => {
Cu.forceGC();
return eventsFired > 1;
});
stopAllocating();
ok(performance.now() - drainTimer < startTime,
"Allocation events fired on GC before timer");
await memory.stopRecordingAllocations();
memory.off("allocations", onAlloc);
await memory.detach();
destroyServerAndFinish(target);
})();
};
</script>
</pre>
</body>
</html>