linux-kernel - Re: [RFC][PATCH 1/6] Introduce struct sched

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Message-ID: <alpine.LFD.0.98.0706111146220.14121@woody.linux-foundation.org>
Date:	Mon, 11 Jun 2007 11:48:00 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
cc:	Ingo Molnar <mingo@...e.hu>, Nick Piggin <nickpiggin@...oo.com.au>,
	efault@....de, kernel@...ivas.org, containers@...ts.osdl.org,
	ckrm-tech@...ts.sourceforge.net, akpm@...ux-foundation.org,
	pwil3058@...pond.net.au, tingy@...umass.edu, tong.n.li@...el.com,
	wli@...omorphy.com, linux-kernel@...r.kernel.org,
	dmitry.adamushko@...il.com, balbir@...ibm.com
Subject: Re: [RFC][PATCH 1/6] Introduce struct sched_entity and struct lrq



On Mon, 11 Jun 2007, Srivatsa Vaddagiri wrote:
> 
> struct sched_entity
>         stores essential attributes/execution-history used by CFS core
>         to drive fairness between 'schedulable entities' (tasks, users etc)

Wouldn't this be sensible to integrate into CFS _regardless_ of anything 
else?

Especially with the alleged "pluggable" scheduler model, one of the things 
lacking in any pluggability is the fact that the core thread data 
structures are anythign but pluggable. This patch makes it no more so, but 
at least it abstracts out the fields that are used by the scheduler, and 
would seem to be a nice cleanup. No?

		Linus
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