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Avro, mail # user - SocketServer performance


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Re: SocketServer performance
Todd Lipcon 2010-01-04, 03:12
On Sun, Jan 3, 2010 at 7:02 PM, Eric Evans <[EMAIL PROTECTED]> wrote:

> On Sun, 2010-01-03 at 12:01 -0800, Todd Lipcon wrote:
> > 80ms sounds like two round trips without SO_NODELAY. Does the socket
> > server set this socket option?
>
> Nope, it doesn't look like it, but I modified SocketServer and
> SocketTransceiver locally to setTcpNoDelay(true), and it didn't make any
> difference.
>
>
Hm, do you have a tshark trace of the RPC conversation? Would be interesting
to see what the delay between packets looks like.

-Todd
>  > On Sun, Jan 3, 2010 at 11:35 AM, Eric Evans <[EMAIL PROTECTED]>
> > wrote:
> >
> >         I'm seeing some pretty bad performance which I suspect can be
> >         pinned on
> >         SocketServer. What is strange here is that the transaction
> >         rate I'm
> >         seeing is identical regardless of the number and disposition
> >         of the
> >         parameters passed/returned. It's always 12.5/sec, 80ms per
> >         operation.
> >
> >         I've attached a trivial example that replicates what I am
> >         seeing on
> >         Linux w/ OpenJDK 1.6
> >
> >         I'm happy to open a bug report, I just wanted to ping the list
> >         first to
> >         see if this is known issue or rings any bells.
>
>
> --
> Eric Evans
> [EMAIL PROTECTED]
>
>