[omniORB] RE: 4.0.7: clientCallTimeOutPeriod slows down transfer

[Igor Lautar]

Hi,

Few words on envirnment:
Windows 2003 Server x64 for server
Windows XP Pro win32 for client
1 Gbit network
omniORB compiled with MS VS 8.0 (cl 14.00.50727.42)

thx,
Igor

Igor Lautar wrote:
> Hi,
> 
> During debugging of slow performance, we have found out that if we do
> not set clientCallTimeOutPeriod (stays to block forever - 0 as
> default), performance is greatly degraded.  
> 
> 1 Gbit link, client reads data and sends them in 256 KB chunks to
> server (for sake of test, server calls servant which immediatelly
> discards buffer and returns).  
> 
> If clientCallTimeOutPeriod is set to any other value than 0, link
> utilization is 1-2% (2-3 MB/s). If clientCallTimeOutPeriod is set to
> 0, utilization jumps to 66% (limit of reading data from disk on
> client).   
> 
> Is there a known bug for this or is this just sideefect of having
> timeouts on client side? 
> Timeouts are really useful in some cases (misbehaving corba server).
> 
> Thank you,
> Igor