From: Andi Kleen <andi@firstfloor.org>
To: Sven-Thorsten Dietrich <sven@thebigcorporation.com>
Cc: David Miller <davem@davemloft.net>,
ghaskins@novell.com, vernux@us.ibm.com, andi@firstfloor.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org, pmullaney@novell.com
Subject: Re: High contention on the sk_buff_head.lock
Date: Thu, 19 Mar 2009 14:45:40 +0100 [thread overview]
Message-ID: <20090319134540.GW11935@one.firstfloor.org> (raw)
In-Reply-To: <1237427007.8204.55.camel@quadrophenia.thebigcorporation.com>
> Do we have to rule-out per-CPU queues, that aggregate into a master
> queue in a batch-wise manner?
TSO/GSO/USO is that actually in a very specific way. It batches
packets into larger packets and then less per packet locks need to be taken.
It was unclear if that was used in this workload or not.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-03-19 13:45 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-18 17:24 High contention on the sk_buff_head.lock Vernon Mauery
2009-03-18 19:07 ` Eric Dumazet
2009-03-18 20:17 ` Vernon Mauery
2009-03-20 23:29 ` Jarek Poplawski
2009-03-23 8:32 ` Eric Dumazet
2009-03-23 8:37 ` David Miller
2009-03-23 8:50 ` Jarek Poplawski
2009-04-02 14:13 ` Herbert Xu
2009-04-02 14:15 ` Herbert Xu
2009-03-18 20:54 ` Andi Kleen
2009-03-18 21:03 ` David Miller
2009-03-18 21:10 ` Vernon Mauery
2009-03-18 21:38 ` David Miller
2009-03-18 21:49 ` Vernon Mauery
2009-03-19 1:02 ` David Miller
2009-03-18 21:54 ` Gregory Haskins
2009-03-19 1:03 ` David Miller
2009-03-19 1:13 ` Sven-Thorsten Dietrich
2009-03-19 1:17 ` David Miller
2009-03-19 1:43 ` Sven-Thorsten Dietrich
2009-03-19 1:54 ` David Miller
2009-03-19 5:49 ` Eric Dumazet
2009-03-19 5:58 ` David Miller
2009-03-19 14:04 ` [PATCH] net: reorder struct Qdisc for better SMP performance Eric Dumazet
2009-03-20 8:33 ` David Miller
2009-03-19 13:45 ` Andi Kleen [this message]
2009-03-19 3:48 ` High contention on the sk_buff_head.lock Gregory Haskins
2009-03-19 5:38 ` David Miller
2009-03-19 12:42 ` Gregory Haskins
2009-03-19 20:52 ` David Miller
2009-03-19 12:50 ` Peter W. Morreale
2009-03-19 7:15 ` Evgeniy Polyakov
2009-03-18 21:07 ` Vernon Mauery
2009-03-18 21:45 ` Eilon Greenstein
2009-03-18 21:51 ` Vernon Mauery
2009-03-18 21:59 ` Andi Kleen
2009-03-18 22:19 ` Rick Jones
2009-03-19 12:59 ` Peter W. Morreale
2009-03-19 13:36 ` Peter W. Morreale
2009-03-19 13:46 ` Andi Kleen
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