> On 17 Aug 2016, at 17:38, Adrian Chadd <adrian.ch...@gmail.com> wrote: > > [snip] > > ok, so this is what I was seeing when I was working on this stuff last. > > The big abusers are: > > * so_snd lock, for TX'ing producer/consumer socket data > * tcp stack pcb locking (which rss tries to work around, but it again > doesn't help producer/consumer locking, only multiple sockets) > * for some of the workloads, the scheduler spinlocks are pretty > heavily contended and that's likely worth digging into. > > Thanks! I'll go try this on a couple of boxes I have with > intel/chelsio 40g hardware in it and see if I can reproduce it. (My > test boxes have the 40g NICs in NUMA domain 1...)
You're welcome, happy to help and troubleshoot :) What about the performance which differs from one reboot to another, as if the NUMA domains have switched ? (0 to 1 & 1 to 0) Did you already see this ? Ben _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
