[sctp-dev] How to reduce time between message received and SCTPSACK sent

[Chathurika Sandarenu]

Thanks for replying Dennis,

I tested with 2 suggestions you made, but still it take 200ms to send sack.
I think there is some kind of configuration, since all the time it take
200ms.  Couldn't find any clue on this..... :(

On Thu, Oct 29, 2009 at 11:25 AM, Dennis Hjort <dennis.hjort at ericsson.com>wrote:

>  Hi,
>
> I'm not really sure if it helps you in your case, but when we've done some
> tests with small packetsizes, we needed to set the
>
> SctpSocketOption <http://openjdk.java.net/projects/sctp/javadoc/b10/com/sun/nio/sctp/SctpSocketOption.html><Boolean <http://download.java.net/jdk7/docs/api/java/lang/Boolean.html?is-external=true>> *SCTP_NODELAY *
>
> to true, disabling Nagle Algorithm, to boost performance, as we mainly use
> SCTP for control-signalling, thus using several small
> packets spread over time, and the Nagle Algorithm wants to pack several
> chunks together to improve performance, ie not useful in our case.
>
> // D
>
>  ------------------------------
> *From:* sctp-dev-bounces at openjdk.java.net [mailto:
> sctp-dev-bounces at openjdk.java.net] *On Behalf Of *Chathurika Sandarenu
> *Sent:* den 29 oktober 2009 06:26
> *To:* sctp-dev at openjdk.java.net
> *Subject:* [sctp-dev] How to reduce time between message received and
> SCTPSACK sent
>
> Hi,
>
> I'm using OpenJDK SCTP to develop sigtran application. I have a small issue
> SCTP SACK message. When a data message is received at SCTP
> it acknowledges that with a SACK, the issue I'm having is that there is a
> always 200ms delay between request receiving and SACK sending.
>
> *Is there a way I can reduce this delay?*
>
> I've attached the traces with this mail.
>
> Thanks in advance.
>
> regards,
> Sandarenu.
>
>
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