avro-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Eric Evans <eev...@rackspace.com>
Subject Re: SocketServer performance
Date Mon, 04 Jan 2010 03:02:03 GMT
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.

> On Sun, Jan 3, 2010 at 11:35 AM, Eric Evans <eevans@rackspace.com>
> 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
eevans@rackspace.com


Mime
View raw message