Scott Atchley <[email protected]> writes: > That is odd. I have only tested with Intel e1000 and our myri10ge > Ethernet driver. The Intel driver does not let you specify value other > than certain settings (0, 25, etc.).
I can't remember if I tried it, but it's documented to be adjustable in the range 100-100000 interrupts/s. > Your results may be specific to that driver. Sure. The only ones I have access to which are tunable with ethtool are the two Broadcoms for which I posted the data. > I have head that some Ethernet drivers do or will support adaptive > coalescing which may give better performance than manually tuning and > without modifying the NIC firmware for OMX. As I said, not in the case of the ones I tried (even in the low-latency adaptive mode which the e1000 doc says to use for HPC). _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
