> On 11 Aug 2016, at 18:36, Adrian Chadd <adrian.ch...@gmail.com> wrote: > > Hi! > > mlx4_core0: <mlx4_core> mem > 0xfbe00000-0xfbefffff,0xfb000000-0xfb7fffff irq 64 at device 0.0 > numa-domain 1 on pci16 > mlx4_core: Initializing mlx4_core: Mellanox ConnectX VPI driver v2.1.6 > (Aug 11 2016) > > so the NIC is in numa-domain 1. Try pinning the worker threads to > numa-domain 1 when you run the test: > > numactl -l first-touch-rr -m 1 -c 1 ./test-program > > You can also try pinning the NIC threads to numa-domain 1 versus 0 (so > the second set of CPUs, not the first set.) > > vmstat -ia | grep mlx (get the list of interrupt thread ids) > then for each: > > cpuset -d 1 -x <irq id> > > Run pcm-memory.x each time so we can see the before and after effects > on local versus remote memory access. > > Thanks!
Adrian, here are the results : Idle system : http://pastebin.com/raw/K1iMVHVF No pinning : http://pastebin.com/raw/w5KuexQ3 CPU : http://pastebin.com/raw/8zgRaazN numactl -l fixed-domain-rr -m 1 -c 1 : http://pastebin.com/raw/VWweYF9H CPU : http://pastebin.com/raw/QjaVH32X numactl -l fixed-domain-rr -m 0 -c 0 : http://pastebin.com/raw/71hfGJdw CPU : http://pastebin.com/raw/hef058Na numactl -l fixed-domain-rr -m 1 -c 1 + cpuset -l <DOM1_CPU> -x <IRQ> : http://pastebin.com/raw/nEQkgMK2 CPU : http://pastebin.com/raw/R652KAdJ numactl -l fixed-domain-rr -m 0 -c 0 + cpuset -l <DOM0_CPU> -x <IRQ> : http://pastebin.com/raw/GdYJHyae CPU : http://pastebin.com/raw/Ggfx9uF9 No pinning, default kernel (no NUMA option) : http://pastebin.com/raw/iQ2u8d8k CPU : http://pastebin.com/raw/Xr77KpcM default kernel (no NUMA option) + cpuset -l <DOM0_CPU> + cpuset -l <DOM0_CPU> -x <IRQ> : http://pastebin.com/raw/VBWg4SZs default kernel (no NUMA option) + cpuset -l <DOM1_CPU> + cpuset -l <DOM1_CPU> -x <IRQ> : http://pastebin.com/raw/SrJLZxuT No pinning, default kernel (no NUMA option), NUMA BIOS disabled : http://pastebin.com/raw/P5LrUASN I would say : - FreeBSD <= 10.3 : disable NUMA in BIOS - FreeBSD >= 11 : disable NUMA in BIOS or enable NUMA in kernel. But let's wait your analysis :) 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"
