Confirmation of AIO

iberkner at iberkner at
Sun Oct 30 14:28:30 UTC 2011

I read that you don't get the file cache, so under what specific circumstances in linux would it be beneficial to use aio (if any)?

------Original Message------
From: Andy
Sender: nginx-bounces at
To: nginx at
ReplyTo: nginx at
Subject: Re: Confirmation of AIO
Sent: Oct 29, 2011 11:42 PM

I don't think AIO works in Linux unless you're using O_DIRECT. But with
O_DIRECT you don't get file cache.

Posted at Nginx Forum:,217133,217537#msg-217537

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