Interesting, lem is all the non-pcie hardware, and if you see better performance out of the LEGACY path then I'm OK with changing the default.
Jack On Tue, Jul 24, 2012 at 1:20 PM, Luigi Rizzo <[email protected]> wrote: > if_lem.c ("lem", one of the e1000 drivers) has 2 possible interrupt modes: > EM_LEGACY_IRQ uses the standard dispatch mechanism, whereas > FAST_INTR has a custom handler that signals a taskqueue to do the job. > > I have no idea which actual hardware uses it (all of my Intel 1G > cards use either "em" or "igb"), but "lem" is the driver used in > qemu, and there the EM_LEGACY_IRQ gives approx 10% higher packet > rates than the other. > > Any objections if i change the default to EM_LEGACY_IRQ ? > > cheers > luigi > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "[email protected]" > _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"
