From: Ben Greear <greearb@candelatech.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: netdev <netdev@vger.kernel.org>
Subject: Re: SCTP performance?
Date: Fri, 09 Aug 2013 17:04:59 -0700 [thread overview]
Message-ID: <520583AB.9030509@candelatech.com> (raw)
In-Reply-To: <1376090518.20509.14.camel@edumazet-glaptop>
On 08/09/2013 04:21 PM, Eric Dumazet wrote:
> On Fri, 2013-08-09 at 16:11 -0700, Ben Greear wrote:
>> I just added some support for SCTP to my traffic-generator tool.
>>
>> I tried to send 1Gbps of traffic, bi-directional, across two
>> 10G interfaces. TCP does this without any trouble at all,
>> but SCTP was asymetric and never got above around 700Mbps,
>> and was usually stuck at < 500Mbps.
>>
>> perf top didn't show any obvious CPU bottlenecks.
>>
>> Has anyone done any recent performance testing with SCTP?
>>
>> I'd be interested to know the results if so...
>
> You mean there is no SCTP offload on the NIC and/or GRO, yes that's too
> bad.
>
I'm sure that is part of the problem.
I got much better results when I explicitly set the
tx/rx socket buffer sizes to 2MB, so maybe it just sucks
at auto-tuning it's socket buffer sizes.
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2013-08-10 0:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-09 23:11 SCTP performance? Ben Greear
2013-08-09 23:21 ` Eric Dumazet
2013-08-10 0:04 ` Ben Greear [this message]
2013-08-10 0:54 ` David Miller
2013-08-12 20:10 ` Vlad Yasevich
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