[Beowulf] Performance tuning for Jumbo Frames

Greg Lindahl lindahl at pbm.com
Wed Dec 16 03:01:18 EST 2009


On Tue, Dec 15, 2009 at 11:41:59PM -0500, Patrick Geoffray wrote:

> So, instead of requiring ~4K per port minimum, you need about ~20K per  
> port. Add to that up to 8 priorities with DCB and the buffering  
> requirement are quickly getting out of hand.

Don't worry, switch vendors will simply implement it all poorly, just
like InfiniBand. That's what always happens with overly-complicated
QOS schemes.

-- greg



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