> A flame graph for the core cycle count and a flame graph with cache miss > stats from pmc would be a great start. > > > I didn't know the exact event name to use for cache miss stats, but here > are the flame graphs for CPU_CLK_UNHALTED_CORE: > http://dev.bsdrp.net/netgate.r311848.CPU_CLK_UNHALTED_CORE.svg > http://dev.bsdrp.net/netgate.r311849.CPU_CLK_UNHALTED_CORE.svg
Thanks. Having twice as many txqs would definitely help. It's also clear that there may be some sort of peformance issue in iflib_txq_drain. Although it could just be non-stop cache misses on the packet headers. -M _______________________________________________ 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"
