linux-kernel - Re: [PATCH] sched: sync with the cfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150814084652.GJ16853@twins.programming.kicks-ass.net>
Date:	Fri, 14 Aug 2015 10:46:52 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Yuyang Du <yuyang.du@...el.com>
Cc:	Byungchul Park <byungchul.park@....com>, mingo@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched: sync with the cfs_rq when changing sched class

On Fri, Aug 14, 2015 at 07:20:20AM +0800, Yuyang Du wrote:
> sched: Provide sched class and priority change statistics to task
> 
> The sched class and priority changes make substantial impact for
> a task, but we really have not a quantitative understanding of how
> frequent they are, which makes it diffcult to work on many cases
> especially some corner cases. We privide it at task level.
> 
> Signed-off-by: Yuyang Du <yuyang.du@...el.com>

Sure we can do that. I would think its fairly rare on regular kernels,
whilst fairly common on -RT kernels where PI is much more active.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/