From: Eric Dumazet <eric.dumazet@gmail.com>
To: Jon Zhou <Jon.Zhou@jdsu.com>
Cc: "juice@swagman.org" <juice@swagman.org>,
Stephen Hemminger <shemminger@vyatta.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: RE: Using ethernet device as efficient small packet generator
Date: Wed, 22 Dec 2010 16:59:18 +0100 [thread overview]
Message-ID: <1293033558.3027.216.camel@edumazet-laptop> (raw)
In-Reply-To: <4A6A2125329CFD4D8CC40C9E8ABCAB9F249D5F3327@MILEXCH2.ds.jdsu.net>
Le mercredi 22 décembre 2010 à 07:48 -0800, Jon Zhou a écrit :
>
> Hi eric, any special setting in pktgen.conf?
>
> PGDEV=/proc/net/pktgen/kpktgend_0
> echo "Removing all devices"
> pgset "rem_device_all"
> echo "Adding eth1-fp-0" //or eth1?
eth1
> pgset "add_device eth1"
> echo "Setting max_before_softirq 10000"
> pgset "max_before_softirq 10000"
Not sure you need to tweak max_before_softirq (I never did)
>
> All things I need to do is set cpu affinity and start 8 pktgen threads? (PGDEV=/proc/net/pktgen/kpktgend_0~7 with "eth1")
Yes, but you must also use queue_map_min and queue_map_max pktgen
parameters so that each cpu manipulates its own 'queue'
CPU 0 :
pgset "queue_map_min 0"
pgset "queue_map_max 0"
...
CPU 3 :
pgset "queue_map_min 3"
pgset "queue_map_max 3"
next prev parent reply other threads:[~2010-12-22 15:59 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-22 7:30 Using ethernet device as efficient small packet generator juice
2010-12-22 8:08 ` Eric Dumazet
2010-12-22 11:11 ` juice
2010-12-22 11:28 ` Eric Dumazet
2010-12-22 15:48 ` Jon Zhou
2010-12-22 15:59 ` Eric Dumazet [this message]
2010-12-22 16:52 ` Jon Zhou
2010-12-22 17:18 ` Eric Dumazet
2010-12-22 17:40 ` Jon Zhou
2010-12-22 17:51 ` Eric Dumazet
2010-12-22 17:15 ` Jon Zhou
-- strict thread matches above, loose matches on Subject: below --
2010-12-30 1:11 Loke, Chetan
2011-01-21 11:44 ` juice
2011-01-21 11:51 ` Eric Dumazet
2011-01-21 12:12 ` juice
2011-01-21 13:38 ` Ben Greear
2011-01-21 22:09 ` Brandeburg, Jesse
2011-01-23 21:48 ` juice
2011-01-24 8:10 ` juice
2011-01-24 9:18 ` Eric Dumazet
2011-01-24 16:34 ` Eric Dumazet
2011-01-24 20:51 ` juice
2011-02-02 8:13 ` juice
2010-12-23 5:15 juice
2010-12-23 8:57 ` Jon Zhou
2010-12-23 10:50 ` juice
2010-12-21 9:56 juice
2010-12-21 18:22 ` Stephen Hemminger
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