linux-kernel - Re: Scheduler(?) regression from 2.6.22 to 2.6.24 for short-lived threads

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:	Sat, 09 Feb 2008 11:58:25 +0100
From:	Mike Galbraith <efault@....de>
To:	Willy Tarreau <w@....eu>
Cc:	Olof Johansson <olof@...om.net>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: Scheduler(?) regression from 2.6.22 to 2.6.24 for short-lived
	threads


On Sat, 2008-02-09 at 09:03 +0100, Willy Tarreau wrote:

> How many CPUs do you have ?

It's a P4/HT, so 1 plus $CHUMP_CHANGE_MAYBE

> > 2.6.25-smp (git today)
> > time 29 ms
> > time 61 ms
> > time 72 ms
> 
> These ones look rather strange. What type of workload is it ? Can you
> publish the program for others to test it ?

It's the proglet posted in this thread.

	-Mike

--
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/