From: Eric Dumazet <eric.dumazet@gmail.com>
To: Benny Amorsen <benny+usenet@amorsen.dk>
Cc: netdev@vger.kernel.org
Subject: Re: Strange packet drops with heavy firewalling
Date: Fri, 09 Apr 2010 15:29:22 +0200 [thread overview]
Message-ID: <1270819762.2623.97.camel@edumazet-laptop> (raw)
In-Reply-To: <m3vdc0ztyc.fsf@ursa.amorsen.dk>
Le vendredi 09 avril 2010 à 14:33 +0200, Benny Amorsen a écrit :
> Thank you very much for the help! I will report back whether it was the
> hash buckets.
OK
You could try :
ethtool -C eth0 tx-usecs 200 tx-frames 100 tx-frames-irq 100
ethtool -C eth1 tx-usecs 200 tx-frames 100 tx-frames-irq 100
(to reduce tx completion irqs)
Before buying multiqueue devices, you also could try net-next-2.6 kernel,
because RPS (Remote Packet Steering) is in.
In your setup, this might help a bit, distribute the packets to all cpus,
with appropriate cache handling.
next prev parent reply other threads:[~2010-04-09 13:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-09 9:56 Strange packet drops with heavy firewalling Benny Amorsen
2010-04-09 11:47 ` Eric Dumazet
2010-04-09 12:33 ` Benny Amorsen
2010-04-09 13:29 ` Eric Dumazet [this message]
2010-04-12 6:20 ` Benny Amorsen
[not found] ` <q2v40c9f5b21004120116p766df82dj88c6af4e4cad55f@mail.gmail.com>
2010-04-12 14:44 ` Benny Lyne Amorsen
[not found] ` <p2x40c9f5b21004120833jd7a749cak6ea69cebd28f8352@mail.gmail.com>
2010-04-12 17:06 ` Benny Amorsen
2010-04-12 23:18 ` Changli Gao
2010-04-13 5:56 ` Eric Dumazet
2010-04-13 7:56 ` Benny Amorsen
2010-04-15 13:23 ` Benny Amorsen
2010-04-15 13:42 ` Eric Dumazet
2010-04-13 12:33 ` Paweł Staszewski
2010-04-13 12:53 ` Eric Dumazet
2010-04-13 13:39 ` Paweł Staszewski
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