Re: [PATCH] Time sliced CFQ #2

From: Helge Hafting
Date: Mon Dec 06 2004 - 07:13:13 EST


Jens Axboe wrote:

On Mon, Dec 06 2004, Robert Love wrote:



(1) separate the two values. we have a scheduling
priority (distributing the finite resource of
processor time) and an I/O priority (distributing
the finite resource of disk bandwidth).
(2) just have a single value.



They are inherently seperate entities, I don't think mixing them up is a
good idea. IO priorities also includes things like attempting to
guarentee disk bandwidth, it isn't always just a 'nice' value.


Two separate entities is fine. Those who want just one
entity can use a "nice wrapper" that sets both
simultaneously.

Helge Hafting
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