[Pvfs2-users] PVFS2 & Jumbo Frames

Robert Olson olson at mcs.anl.gov
Thu Nov 2 11:59:51 EST 2006


The nodes in my cluster have dual Gig-E nics (tigon3). I'm pondering  
the installation of a second gigE switch to attach them all with a  
private storage network, and run it with jumbo frames. Do you think  
I'd see a significant performance increase with PVFS in this  
configuration?

We're currently running the nodes with standard 1500 byte frames as  
the nodes are sitting on a shared network with the rest of our group  
infrastructure.

I'm also curious if folks have experimented with the effects of the  
TCP segment offload stuff that is available on these NICs.

thanks,
--bob


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