> On 15 Aug 2016, at 16:49, Ben RUBSON <ben.rub...@gmail.com> wrote: > >> On 12 Aug 2016, at 00:52, Adrian Chadd <adrian.ch...@gmail.com> wrote: >> >> Which ones of these hit the line rate comfortably? > > So Adrian, I ran tests again using FreeBSD 11-RC1. > I put iperf throughput in result files (so that we can classify them), as > well as top -P ALL and pcm-memory.x. > iperf results : columns 3&4 are for srv1->srv2, columns 5&6 are for > srv2->srv1 (both flows running at the same time). > > > > Results, expected throughput (best first) : > 11, 01, 05, 07, 06 > > Results, bad (best first) : > 04, 02, 09, 03 > > Results, worst (best first) : > 10, 08 > > > > 00) Idle system > http://pastebin.com/raw/K1iMVHVF
And strangely enough, from one server reboot to another, results are not the same. They can be excellent, as 01), and they can be dramatically bad, as 01b) : > 01) No pinning > http://pastebin.com/raw/7J3HibX0 01b) http://pastebin.com/raw/HbSPjigZ (-36GB/s) I kept this "bad boot" state and performed the other tests (with lock_profiling stats for 10 seconds) : > 02) numactl -l fixed-domain-rr -m 0 -c 0 > http://pastebin.com/raw/Yt7yYr0K 02b) http://pastebin.com/raw/n7aZF7ad (+16GB/s) > 03) numactl -l fixed-domain-rr -m 0 -c 0 > + cpuset -l <0-11> -x <IRQ> > http://pastebin.com/raw/1FAgDUSU 03b) http://pastebin.com/raw/QHbauimp (+24GB/s) > 04) numactl -l fixed-domain-rr -m 0 -c 0 > + cpuset -l <12-23> -x <IRQ> > http://pastebin.com/raw/fTAxrzBb 04b) http://pastebin.com/raw/7gJFZdqB (+10GB/s) > 05) numactl -l fixed-domain-rr -m 1 -c 1 > http://pastebin.com/raw/kuAHzKu2 05b) http://pastebin.com/raw/TwhHGKNa (-36GB/s) > 06) numactl -l fixed-domain-rr -m 1 -c 1 > + cpuset -l <0-11> -x <IRQ> > http://pastebin.com/raw/tgtaZgwb 06b) http://pastebin.com/raw/zSZ7r09Y (-36GB/s) > 07) numactl -l fixed-domain-rr -m 1 -c 1 > + cpuset -l <12-23> -x <IRQ> > http://pastebin.com/raw/16ReuGFF 07b) http://pastebin.com/raw/qCsaGBVn (-36GB/s) These results are very strange, as if NUMA domains were "inverted"... dmesg : http://pastebin.com/raw/i5USqLix If I'm lucky enough, after several reboots, I can produce same performance results as in test 01). dmesg : http://pastebin.com/raw/VvfQv6TM 01c) http://pastebin.com/raw/BVxgSyBN > 08) No pinning, default kernel (no NUMA option) > http://pastebin.com/raw/Ah74fKRx > > 09) default kernel (no NUMA option) > + cpuset -l <0-11> > + cpuset -l <0-11> -x <IRQ> > http://pastebin.com/raw/YE0PxEu8 > > 10) default kernel (no NUMA option) > + cpuset -l <12-23> > + cpuset -l <12-23> -x <IRQ> > http://pastebin.com/raw/RPh8aM49 > > > > 11) No pinning, default kernel (no NUMA option), NUMA BIOS disabled > http://pastebin.com/raw/LyGcLKDd _______________________________________________ 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"
