From: Lee Revell <rlrevell@joe-job.com>
To: pierre-olivier.gaillard@fr.thalesgroup.com
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: voluntary-preempt-2.6.8.1-P1 seems to lose UDP messages.
Date: Wed, 18 Aug 2004 14:31:01 -0400 [thread overview]
Message-ID: <1092853574.8432.29.camel@krustophenia.net> (raw)
In-Reply-To: <41233923.80202@fr.thalesgroup.com>
On Wed, 2004-08-18 at 07:10, P.O. Gaillard wrote:
> Hello,
>
> I have a real-time application that transmits 20 MBytes/s over UDP/Gigabit
> Ethernet between 2 PCs.
> But when I use the voluntary-preemt-2.6.8.1-P1 patch on the receiving PC, the
> app starts complaining about lost messages.
It sounds like you need to set the network card irq to be non-threaded.
What is the output of:
root@mindpipe:/home/rlrevell/kernel-source/linux-2.6.8.1-P3# find
/proc/irq/ -name threaded -print -a -exec cat {} \;
/proc/irq/15/ide1/threaded
1
/proc/irq/14/ide0/threaded
1
/proc/irq/12/uhci_hcd/threaded
1
/proc/irq/11/eth0/threaded
1
/proc/irq/11/uhci_hcd/threaded
1
/proc/irq/10/EMU10K1/threaded
0
/proc/irq/10/uhci_hcd/threaded
1
/proc/irq/8/rtc/threaded
0
/proc/irq/1/i8042/threaded
1
You probably want all of these to be 1 except ethX.
Lee
next prev parent reply other threads:[~2004-08-18 18:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-18 11:10 voluntary-preempt-2.6.8.1-P1 seems to lose UDP messages P.O. Gaillard
2004-08-18 18:31 ` Lee Revell [this message]
2004-08-19 7:25 ` P.O. Gaillard
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