On 7/1/08, Paul <[EMAIL PROTECTED]> wrote: > I have been unable to even come close to livelocking the machine with the em > driver interrupt moderation.
Yeah, system will not be livelocked. But even setting its imtimer to 4000, the overall system response is still worse than using polling @4000 with a 9402PT. > So that to me throws polling out the window. I tried 8000hz with polling I don't believe high polling rate will improve forwarding performance. I used to set polling rate to 2000hz, burst max to 750 and each burst to 60. > modified to allow 10000 burst and it makes no difference > in the amount of pps I can jam through.. It' seems to be limited by the > routing path in the kernel more than anything else. > > If a driver/hardware didn't support interrupt mitigation then it would > definitely lock the machine. So polling(4) still has its place. Best Regards, sephe -- Live Free or Die _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
