[openib-general] [PATCH] FMR support in mthca

[Libor Michalek]

On Thu, Mar 31, 2005 at 04:25:28PM -0500, Hal Rosenstock wrote:
> On Wed, 2005-03-30 at 19:43, Libor Michalek wrote:
> > The program has a decent help for available parameters, but here are
> > some reasonable defaults:
> > 
> >   server:
> > 
> >     ./ttcp.aio.x -r -l 65536 -a 20
> > 
> >   client:
> > 
> >     ./ttcp.aio.x -t -l 65536 -n 100000 -a 20 192.168.0.100
> 
> Are these the parameters used to achieve the throughput numbers you
> published ?
> 
> Sounds like you tweaked the numbers in sdp_dev.h. Anywhere else ?
> 
> Can you provide the tuning numbers used and where they were found so these
> results can be reproduced ?

  No tweaking or changes to the SDP code itself. The parameters above 
should give similar results, but here are the exact parameters I used
for the two aync tests I mentioned in the original results I posted.

> > For async socket I kept 20 96K buffers in flight. For the FMR pool cache 
> > hit async results I used only 20 different buffers. 

     ./ttcp.aio.x -r -l 98304 -a 20 -f M
     ./ttcp.aio.x -t -l 98304 -n 200000 -a 20 -f M 192.168.0.100

> > For the FMR pool cache miss async results I used 1000 different
> > buffers, of which only 20 were in flight at a time.

     ./ttcp.aio.x -r -l 98304 -a 20 -x 1000 -f M
     ./ttcp.aio.x -t -l 98304 -n 200000 -a 20 -x 1000 -f M 192.168.0.100


-Libor