From: Olaf Kirch <okir@suse.de>
To: Rick Jones <rick.jones2@hp.com>
Cc: netdev@oss.sgi.com
Subject: Re: [RFC] TCP congestion schedulers
Date: Tue, 22 Mar 2005 02:41:54 +0100 [thread overview]
Message-ID: <20050322014154.GB4555@suse.de> (raw)
In-Reply-To: <423F627C.2060100@hp.com>
On Mon, Mar 21, 2005 at 04:10:36PM -0800, Rick Jones wrote:
> I would put-forth netperf - but then I'm of course biased. It is
I think that was one of the benchmarks where the ia64 slowdown with
LSM was diagnosed; netperf suffered some 10-15% degradation. And that was
just with the capability module loaded, no fancy stuff going on.
After we hacked up LSM to inline the capability checks in the default
case, performance was back to normal.
We didn't bother to pin-point where the loss actually occured, but my
suspicion is the major offender was the per-skb check.
Olaf
--
Olaf Kirch | --- o --- Nous sommes du soleil we love when we play
okir@suse.de | / | \ sol.dhoop.naytheet.ah kin.ir.samse.qurax
next prev parent reply other threads:[~2005-03-22 1:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-23 21:30 [PATCH] select congestion control with one sysctl Baruch Even
2005-02-23 21:57 ` David S. Miller
2005-02-24 0:23 ` Stephen Hemminger
2005-02-24 0:33 ` David S. Miller
2005-02-26 9:41 ` Arnaldo Carvalho de Melo
[not found] ` <421D30FA.1060900@ev-en.org>
[not found] ` <20050225120814.5fa77b13@dxpl.pdx.osdl.net>
[not found] ` <20050309210442.3e9786a6.davem@davemloft.net>
[not found] ` <4230288F.1030202@ev-en.org>
[not found] ` <20050310182629.1eab09ec.davem@davemloft.net>
[not found] ` <20050311120054.4bbf675a@dxpl.pdx.osdl.net>
[not found] ` <20050311201011.360c00da.davem@davemloft.net>
2005-03-14 23:17 ` [RFC] TCP congestion schedulers Stephen Hemminger
2005-03-15 19:54 ` John Heffner
2005-03-15 22:16 ` John Heffner
2005-03-18 4:12 ` David S. Miller
2005-03-18 12:53 ` Arnaldo Carvalho de Melo
2005-03-18 13:43 ` jamal
2005-03-18 16:13 ` Arnaldo Carvalho de Melo
2005-03-18 16:45 ` Stephen Hemminger
2005-03-18 16:59 ` Arnaldo Carvalho de Melo
2005-03-19 20:19 ` Andi Kleen
2005-03-21 21:25 ` John Heffner
2005-03-21 21:51 ` David S. Miller
2005-03-21 22:30 ` Baruch Even
2005-03-22 0:10 ` Rick Jones
2005-03-22 1:41 ` Olaf Kirch [this message]
2005-03-22 7:41 ` Andi Kleen
2005-03-28 23:51 ` Stephen Hemminger
2005-03-29 15:25 ` Andi Kleen
2005-03-29 17:17 ` Stephen Hemminger
2005-03-29 18:58 ` Rick Jones
2005-03-30 9:41 ` Matt Mackall
2005-03-29 19:32 ` John Heffner
2005-03-29 20:03 ` David S. Miller
2005-03-29 20:09 ` Rick Jones
2005-04-08 19:33 ` John Heffner
2005-04-08 20:20 ` Rick Jones
2005-02-24 1:05 ` [PATCH] select congestion control with one sysctl Daniele Lacamera
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