linux-kernel - Re: [RFC][-mm] [1/2] Simple stats for cpu resource controller

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]

Date:	Sun, 6 Apr 2008 00:39:02 +0530
From:	Balaji Rao <balajirrao@...il.com>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, containers@...ts.osdl.org,
	menage@...gle.com, a.p.zijlstra@...llo.nl, balbir@...ibm.com,
	Ingo Molnar <mingo@...e.hu>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
Subject: Re: [RFC][-mm] [1/2] Simple stats for cpu resource controller

On Sunday 06 April 2008 12:26:16 am Dhaval Giani wrote:
> On Sat, Apr 05, 2008 at 11:39:46PM +0530, Balaji Rao wrote:
> > This patch implements some trivial statistics for the CPU controller.
> > 
> > As per our current requirements, we have decided to keep the stats tick 
based as opposed to using CFS precise accounting.
> > 
> 
> A quick question? Why? Everywhere in the CFS we use precise accounting,
> (even within the CPU controller). Doesn't make sense using ticks here
> then.
> 
Using CFS precise accounting has a cost (see task_utime and task_stime). 
Currently our requirements don't call for precise statistics.

-- 
regards,
Balaji Rao
Dept. of Mechanical Engineering,
National Institute of Technology Karnataka, India
--
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/