linux-kernel - RE: scale sysctl_sched_shares_ratelimit with nr

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:	Mon, 18 Aug 2008 14:54:45 +0800
From:	"Zhang, Yanmin" <yanmin.zhang@...el.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	<a.p.zijlstra@...llo.nl>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: RE: scale sysctl_sched_shares_ratelimit with nr_cpus

>>-----Original Message-----
>>From: Ingo Molnar [mailto:mingo@...e.hu]
>>Sent: Monday, August 18, 2008 2:52 PM
>>To: Zhang, Yanmin
>>Cc: a.p.zijlstra@...llo.nl; Linux Kernel Mailing List
>>Subject: Re: scale sysctl_sched_shares_ratelimit with nr_cpus
>>
>>
>>* Zhang, Yanmin <yanmin.zhang@...el.com> wrote:
>>
>>> Ingo,
>>>
>>> My linux mailbox is locked, so I send from my another mail box.
>>>
>>> I tested the patch of scale sysctl_sched_shares_ratelimit with
nr_cpus
>>> on 16-core tigerton by volanoMark. CONFIG_GROUP_SCHED=y. Comparing
>>> with pure 2.6.27-rc3, the patched kernel has about 15% improvement,
>>> and it seems volanoMark runs more smoothly with the patched kernel.
>>
>>cool. It's already upstream (post-rc3 commit):
[YM] But comparing with 2.6.26, volanoMark result still has about 60%
regression.

>>
>>  55cd534: sched: scale sysctl_sched_shares_ratelimit with nr_cpus
>>
>>	Ingo
--
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/