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Subject: Re: Possible to prioritize IO requests based on the requesting
 process?
To: Yuri <yuri@rawbw.com>, Freebsd hackers list <freebsd-hackers@FreeBSD.org>
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From: Eugene Grosbein <eugen@grosbein.net>
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Date: Mon, 25 Dec 2017 11:38:07 +0700
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25.12.2017 5:37, Yuri пишет:
> If I am watching a Netflix movie, I wouldn't want some batch file download to interrupt me, because, obviously, the response from an interactive process is expected with higher urgency, compared to a batch result.
> 
> 
> Assuming that disk/network IO is a bottleneck, is there a way to prioritize them based on pid?

Start by reading rctl(8) manual page.