From: Ben Hutchings <bhutchings@solarflare.com>
To: Jesper Dangaard Brouer <hawk@diku.dk>
Cc: jon_zhou@agilent.com, netdev@vger.kernel.org
Subject: Re: the maximal speed of pktgen with 1Gbps NIC
Date: Wed, 22 Jul 2009 17:12:32 +0200 [thread overview]
Message-ID: <1248275552.4058.0.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.64.0907221448570.18880@tyr.diku.dk>
On Wed, 2009-07-22 at 14:56 +0200, Jesper Dangaard Brouer wrote:
> On Wed, 22 Jul 2009, jon_zhou@agilent.com wrote:
>
> > anyone knows the maximal speed of pktgen with 1Gbps NIC?
>
> You are limited by the number of packets per second (pps) your machine can
> generate. This limitation is given by the CPU speed and the NIC used.
>
> The maximum pps I have seen with pktgen at 1Gbit/s is 1200 kpps.
>
> 1Gbit/s wire speed pps with 64 bytes packets is approx 1953 kpps.
> (1000*10^6/(64*8) = 1953125)
[...]
You need to take the inter-packet gap into consideration too.
Ben.
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
next prev parent reply other threads:[~2009-07-22 15:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-22 7:35 pktgen crash with 2.6.30 Or Gerlitz
2009-07-22 8:57 ` the maximal speed of pktgen with 1Gbps NIC jon_zhou
2009-07-22 12:56 ` Jesper Dangaard Brouer
2009-07-22 15:12 ` Ben Hutchings [this message]
2009-07-22 17:12 ` Bob Gilligan
2009-07-22 17:25 ` Stephen Hemminger
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