On Dec 12, 2009, at 7:59 , Rahul Nabar wrote:
I have seen a considerable performance boost for my codes by using Jumbo Frames. But are there any systematic tools or strategies to select the optimum MTU size? I have it set as 9000. (Of course, all switiching hardware supports jumbo frames and no talking to the external world required of the interfaces) Have you guys found performance to be MTU sensitive?
Once (i.e. several years ago) I tested an application on Gbe and found that around 1/3rd of the MTU was the optimum. But I guess YMMV.
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