From: Changli Gao <xiaosuo@gmail.com>
To: Benny Amorsen <benny+usenet@amorsen.dk>
Cc: zhigang gong <zhigang.gong@gmail.com>, netdev@vger.kernel.org
Subject: Re: Strange packet drops with heavy firewalling
Date: Tue, 13 Apr 2010 07:18:42 +0800 [thread overview]
Message-ID: <u2y412e6f7f1004121618p6d6eff30q8a45a03faa59a912@mail.gmail.com> (raw)
In-Reply-To: <1271091990.2858.409.camel@ursa.amorsen.dk>
On Tue, Apr 13, 2010 at 1:06 AM, Benny Amorsen <benny+usenet@amorsen.dk> wrote:
>
> 99: 24 1306226 3 2 PCI-MSI-edge eth1-tx-0
> 100: 15735 1648774 3 7 PCI-MSI-edge eth1-tx-1
> 101: 8 11 9 1083022 PCI-MSI-edge eth1-tx-2
> 102: 0 0 0 0 PCI-MSI-edge eth1-tx-3
> 103: 18 15 6131 1095383 PCI-MSI-edge eth1-rx-0
> 104: 217 32 46544 1335325 PCI-MSI-edge eth1-rx-1
> 105: 154 1305595 218 16 PCI-MSI-edge eth1-rx-2
> 106: 17 16 8229 1467509 PCI-MSI-edge eth1-rx-3
> 107: 0 0 1 0 PCI-MSI-edge eth1
> 108: 2 14 15 1003053 PCI-MSI-edge eth0-tx-0
> 109: 8226 1668924 478 487 PCI-MSI-edge eth0-tx-1
> 110: 3 1188874 17 12 PCI-MSI-edge eth0-tx-2
> 111: 0 0 0 0 PCI-MSI-edge eth0-tx-3
> 112: 203 185 5324 1015263 PCI-MSI-edge eth0-rx-0
> 113: 4141 1600793 153 159 PCI-MSI-edge eth0-rx-1
> 114: 16242 1210108 436 3124 PCI-MSI-edge eth0-rx-2
> 115: 267 4173 19471 1321252 PCI-MSI-edge eth0-rx-3
> 116: 0 1 0 0 PCI-MSI-edge eth0
>
>
> irqbalanced seems to have picked CPU1 and CPU3 for all the interrupts,
> which to my mind should cause the same problem as before (where CPU1 and
> CPU3 was handling all packets). Yet the box clearly works much better
> than before.
irqbalanced? I don't think it can work properly. Try RPS in netdev and
linux-next tree, and if cpu load isn't even, try this patch:
http://patchwork.ozlabs.org/patch/49915/ .
--
Regards，
Changli Gao(xiaosuo@gmail.com)
next prev parent reply other threads:[~2010-04-12 23:19 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
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 [this message]
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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