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: <Pine.LNX.4.64.0709262313090.5856@limbo>
Date:	Wed, 26 Sep 2007 23:17:17 +0300 (EEST)
From:	Timo Jantunen <jeti@...ho.com>
To:	Willy Tarreau <w@....eu>
cc:	Francois Romieu <romieu@...zoreil.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: commit 6dccd16b7c2703e8bbf8bca62b5cf248332afbe2 kills r8169 send
 performance

On Wed, 26 Sep 2007, Willy Tarreau wrote:

> On Wed, Sep 26, 2007 at 09:52:02PM +0300, Timo Jantunen wrote:
> > On Wed, 26 Sep 2007, Francois Romieu wrote:
> > > The patch below is scheduled for inclusion before 2.6.23. Please try it and
> > > see if it makes a difference on top of 2.6.23-rc8 (full dmesg will be welcome
> > > too).
> > Thanks for the quick reply and fix. Unfortunately the fix didn't help in my 
> > case.
> 
> In another thread on LKML today, there has been some discussion about a
> similar problem, which is caused by a locking bug in iperf which makes
> it spin at 100% CPU. Ingo has posted a fix for this, please check the list.

I noticed the problem originally with another program (playback of 720p 
video to remote X using mplayer). And in my case the CPU usage is 2-3% 
systime, <1% userspace so it doesn't seem to be anything to do with the 
scheduler (I did try that "echo 1 > /proc/sys/kernel/sched_compat_yield" 
workaround, too.)


//T

> Regards,
> Willy
-
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ