Hello there, I'm monitoring my app and I've seen my memory usage increase really oddly (it did not decrease after X hours), so I suspected a leak. I've found out that the memory seems to remain uncollected when using fs.readStream. I made a small example with an http server that serving a 2mb file and did some ab (apache benchmark) load testing on it (ab -n 5000 -c 100 a couple of times). X minutes after the load testing is done, the memory idles at 480 Mb and doesn't drop.
Am I missing something or is there really a problem with this?
index.js
var http = require('http'),
bytes = require('bytes'), // npm install bytes
fs = require('fs');
var fpath = '/path/to/a/2mb/file/in/my/case';
http.createServer(function(req, res) {
fs.createReadStream(fpath).pipe(res);
}).listen(7777);
var lastMem;
function getMem(msg) {
var memUsg;
msg = msg || '';
memUsg = bytes(process.memoryUsage().rss);
if (lastMem !== memUsg) {
lastMem = memUsg;
console.log(msg + ' ' + memUsg);
}
}
setInterval(function() {
getMem('rss:');
}, 5000);
Thanks!
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