linux-kernel - Re: [RFC][PATCH 1/2] sched: higher granularity load on 64bit systems

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: <20080424015814.GA17190@linux.vnet.ibm.com>
Date:	Thu, 24 Apr 2008 07:28:14 +0530
From:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To:	David Miller <davem@...emloft.net>
Cc:	a.p.zijlstra@...llo.nl, mingo@...e.hu, vatsa@...ibm.com,
	dmitry.adamushko@...il.com, efault@....de,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH 1/2] sched: higher granularity load on 64bit
	systems

On Wed, Apr 23, 2008 at 05:27:10PM -0700, David Miller wrote:
> From: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Date: Thu, 24 Apr 2008 00:07:56 +0200
> 
> > The below is an RFC because for some reason it regresses kbuild by 5% on
> > my machine (and more on the largesmp that are the reason for it).
> 
> This causes my 64-cpu Niagara2 box to completely hang when I run "make
> clean" on a kernel tree after a fresh bootup.
> 

Any traces? Or anything? It stayed pretty stable on the 128 way I trying
on, (but for the performance regression) and I was able to reproduce
your group scheduler hang (or so i think, it might a separate one
altogether.)

> Can we just revert all of this broken code until it's sorted out? :-/
> 
> We're going on 4 days with unfixed major regressions from the
> scheduler tree merge, and these regressions make systems unusable.
> 
> This is blocking my own work, and I'm starting to lose my patience.

-- 
regards,
Dhaval
--
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/