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Message-ID: <520583AB.9030509@candelatech.com> Date: Fri, 09 Aug 2013 17:04:59 -0700 From: Ben Greear <greearb@...delatech.com> To: Eric Dumazet <eric.dumazet@...il.com> CC: netdev <netdev@...r.kernel.org> Subject: Re: SCTP performance? 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@...delatech.com> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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