linux-kernel - Re: 2.6.25-rc1: volanoMark 45% regression

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: <1203311505.3027.187.camel@ymzhang>
Date:	Mon, 18 Feb 2008 13:11:45 +0800
From:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	vatsa@...ux.vnet.ibm.com, LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: 2.6.25-rc1: volanoMark 45% regression

On Mon, 2008-02-18 at 10:26 +0530, Balbir Singh wrote:
> Zhang, Yanmin wrote:
> >>
> >>>  Did you have
> >>> CONFIG_FAIR_USER_SCHED enabled in both cases?
> >> Yes.
> >>
> >> CONFIG_FAIR_GROUP_SCHED=y
> >> CONFIG_FAIR_USER_SCHED=y
> >>
> 
> Interesting that you have CONFIG_FAIR_USER_SCHED. Do you have any other users on
> the system (are they running anything at the time of the benchmark)?
No. As for volanoMark, I start volanoMark both server and client processes while
starting some system measurement tools such like vmstat/iostat/sar. All the processes
run under the same user.


>  Could you
> turn off CONFIG_FAIR_USER_SCHED  and turn on CONFIG_FAIR_GROUP_SCHED.
I will try.

>  I am going
> to run some tests with 2.6.25-rc2 and Volanomark and see how that goes.
Pls. set /proc/sys/kernel/sched_compat_yield=1 before starting test.

-yanmin


--
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/