From: Robert Olsson <Robert.Olsson@data.slu.se>
To: Pasi Sjoholm <ptsjohol@cc.jyu.fi>
Cc: Robert Olsson <Robert.Olsson@data.slu.se>,
Francois Romieu <romieu@fr.zoreil.com>,
H?ctor Mart?n <hector@marcansoft.com>,
Linux-Kernel <linux-kernel@vger.kernel.org>, <akpm@osdl.org>,
<netdev@oss.sgi.com>, <brad@brad-x.com>, <shemminger@osdl.org>
Subject: Re: ksoftirqd uses 99% CPU triggered by network traffic (maybe RLT-8139 related)
Date: Tue, 27 Jul 2004 22:24:01 +0200 [thread overview]
Message-ID: <16646.47585.814327.628319@robur.slu.se> (raw)
In-Reply-To: <Pine.LNX.4.44.0407271710070.3787-100000@silmu.st.jyu.fi>
Pasi Sjoholm writes:
> Yeah, when the ksoftirqd is taking all the cpu it will be like that, but
> when the kernel is behaving normally the starving diff is between 0->1sec.
Well ksoftirqd makes your kernel load just visible which is good and
ksofirqd gets accounted for this when softirq's get deferred to it.
It may look like goes from 0 to 100% but thats probably not the case.
The problem is we can starve userland at high loads. As said we were
trying some way to cure this I may have some old patch if you like to try.
Cheers.
--ro
next prev parent reply other threads:[~2004-07-27 20:26 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-24 21:05 ksoftirqd uses 99% CPU triggered by network traffic Héctor Martín
2004-07-24 23:27 ` Francois Romieu
2004-07-25 6:32 ` Héctor Martín
2004-07-25 20:27 ` ksoftirqd uses 99% CPU triggered by network traffic (maybe RLT-8139 related) Pasi Sjoholm
2004-07-25 21:59 ` Francois Romieu
2004-07-26 15:15 ` Pasi Sjoholm
2004-07-26 16:37 ` Robert Olsson
2004-07-26 21:46 ` Pasi Sjoholm
2004-07-26 22:38 ` Robert Olsson
2004-07-27 0:16 ` Pasi Sjoholm
2004-07-27 11:10 ` Robert Olsson
2004-07-27 14:20 ` Pasi Sjoholm
2004-07-27 20:24 ` Robert Olsson [this message]
2004-07-27 21:27 ` Pasi Sjoholm
2004-07-28 18:35 ` Robert Olsson
2004-07-28 19:09 ` James Morris
2004-07-29 0:46 ` Pasi Sjoholm
2004-07-30 9:18 ` Robert Olsson
2004-07-30 12:56 ` Pasi Sjoholm
2004-07-30 14:05 ` Robert Olsson
2004-07-30 18:40 ` Pasi Sjoholm
2004-07-31 12:33 ` Francois Romieu
2004-08-02 9:57 ` Pasi Sjoholm
2004-08-02 10:03 ` Pasi Sjoholm
2004-08-02 22:35 ` Francois Romieu
2004-08-03 12:32 ` Pasi Sjoholm
2004-08-03 16:50 ` Francois Romieu
2004-08-03 20:19 ` Pasi Sjoholm
2004-08-04 16:26 ` Pasi Sjoholm
2004-08-05 10:14 ` Hector Martin
2004-08-05 10:55 ` Hector Martin
2004-08-05 11:22 ` Francois Romieu
2004-08-05 15:28 ` OGAWA Hirofumi
2004-08-05 17:21 ` Francois Romieu
2004-07-30 14:12 ` Robert Olsson
2004-07-26 16:55 ` Stephen Hemminger
2004-07-26 21:28 ` Pasi Sjoholm
[not found] <41041DED.2010609@cox.net>
2004-07-25 21:18 ` Pasi Sjoholm
[not found] <4104257C.3080102@cox.net>
2004-07-25 21:42 ` Pasi Sjoholm
2004-07-25 22:31 ` Andrew Morton
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