How can see the effect of direct_io and sendfile directive on my server? I want to compare with this settings and without. Is there any tool for do it?
sendfile on;
aio on;
directio 512k;
Thanks.
You can use JMeter load test tool, copy many video files in your web app (nginx server)
and start using Jmeter with 1000 users requests to those files using HTTP Request Sampler in JMeter