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bench: run GC and dump stats if --expose-gc is set

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This commit is contained in:
Ben Noordhuis 2012-04-27 20:29:35 +02:00
parent 70635753a3
commit 4e84dfa683
1 changed files with 19 additions and 0 deletions
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19
benchmark/http_simple_auto.js
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@ -105,5 +105,24 @@ server.listen(port, function () {
cp.stderr.pipe(process.stderr);
cp.on('exit', function() {
server.close();
process.nextTick(dump_mm_stats);
});
});
function dump_mm_stats() {
if (typeof gc != 'function') return;
var before = process.memoryUsage();
for (var i = 0; i < 10; ++i) gc();
var after = process.memoryUsage();
setTimeout(print_stats, 250); // give GC time to settle
function print_stats() {
console.log('\nBEFORE / AFTER GC');
['rss', 'heapTotal', 'heapUsed'].forEach(function(key) {
var a = before[key] / (1024 * 1024);
var b = after[key] / (1024 * 1024);
console.log('%sM / %sM %s', a.toFixed(2), b.toFixed(2), key);
});
}
}