linux-kernel - Re: 'autogroup' sched code KILLING responsiveness

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: <1295761334.7883.5.camel@marge.simson.net>
Date:	Sun, 23 Jan 2011 06:42:14 +0100
From:	Mike Galbraith <efault@....de>
To:	Michael Witten <mfwitten@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 'autogroup' sched code KILLING responsiveness

On Sat, 2011-01-22 at 21:32 -0600, Michael Witten wrote:
> On Sat, Jan 22, 2011 at 15:23, Michael Witten <mfwitten@...il.com> wrote:
> > Of course, I have none of these problems when I disable:
> >
> >  CONFIG_AUTOGROUP_SCHED
> 
> Of course, if CONFIG_AUTOGROUP_SCHED is enabled, then the problem also
> goes away if the kernel is booted using the `noautogroup' parameter.

I built a UP kernel for my old P4 box, and fair group scheduling doesn't
appear to be working at all, whereas SMP does.  It was usable, but
pretty horrible.

I have other (hot) things to do atm, but will investigate this.  Thanks.

	-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/