linux-kernel - Re: Interrupt latency on some 945GM platforms

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: <201009140104.03135.anarsoul@gmail.com>
Date:	Tue, 14 Sep 2010 01:03:55 +0300
From:	Vasily Khoruzhick <anarsoul@...il.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	intel-gfx@...ts.freedesktop.org,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: Interrupt latency on some 945GM platforms

В сообщении от 14 of September 2010 00:59:52 автор Jesse Barnes написал:
> On Tue, 14 Sep 2010 00:52:31 +0300
> 
> Vasily Khoruzhick <anarsoul@...il.com> wrote:
> > В сообщении от 14 of September 2010 00:46:32 автор Jesse Barnes написал:
> > > Yes, you can set vblank_mode=0 in your environment or drirc.  At least
> > > I think 0 is no vsync. :)
> > 
> > That doesn't help, glxgears shows ~1000fps, but it's output is jerky.
> 
> Is it smooth with clocksource=tsc?  I wonder if the GPU batch
> interrupts are also getting delayed, and possibly timer ticks...


Yes, it's smooth with clocksource=tsc nohz=off

Regards
Vasily

Download attachment "signature.asc " of type "application/pgp-signature" (199 bytes)