Regarding SCTP performance
Michael Tuexen
Michael.Tuexen at lurchi.franken.de
Mon May 14 08:44:39 UTC 2012
On May 14, 2012, at 12:21 AM, vansi wow wrote:
> Hi All,
> we have ported SCTP from FreeBSD 7.0 tree , but we face the
Hi Vamshi,
I would recommend to use more recent sources... There has been a huge
number of bug fixes been committed. BTW: What exactly does "porting"
mean? What system are you using?
>
> issue that when we measure the throughput performance of the stack , we see
> that SCTP throughput is half that of the TCP throughput .
>
> Is there some tuning which can be done or some tweaks which can help
> improve the performance .
>
>
>
> TCP :
> =====
> SO_SNDBUF = 32768
> SO_RCVBUF = 32768
> Throughput: 5653KB/s
>
>
> SCTP:
> ======
> SNDBUF = 838860
> RCVBUF = 838860
> Throughput = 2422 KB/s
Without any another information it is hard to say what is limiting the transfer.
Do you have any packet loss? What is the CPU load when doing the transfer?
FreeBSD 7 does not support CRC offloading...
Best regards
Michael
>
> Regards,
> Vamshi
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