On 25.10.2016. 0:22, Hrvoje Popovski wrote: > On 24.10.2016. 23:36, Mike Belopuhov wrote: >> On Mon, Oct 24, 2016 at 19:04 +0200, Hrvoje Popovski wrote: >>> Hi all, >>> >>> OpenBSD box acts as transit router for /8 networks without pf and with >>> this sysctls >>> >>> ddb.console=1 >>> kern.pool_debug=0 >>> net.inet.ip.forwarding=1 >>> net.inet.ip.ifq.maxlen=8192 >>> >>> netstat >>> 11/8 192.168.11.2 UGS 0 114466419 - 8 ix0 >>> 12/8 192.168.12.2 UGS 0 0 - 8 ix1 >>> 13/8 192.168.13.2 UGS 0 0 - 8 myx0 >>> 14/8 192.168.14.2 UGS 0 0 - 8 myx1 >>> 15/8 192.168.15.2 UGS 0 0 - 8 em3 >>> 16/8 192.168.16.2 UGS 0 89907239 - 8 em2 >>> 17/8 192.168.17.2 UGS 0 65791508 - 8 bge0 >>> 18/8 192.168.18.2 UGS 0 0 - 8 bge1 >>> >>> while testing dlg@ "mcl2k2 mbuf clusters" patch with todays -current i >>> saw that performance with plain -current drops for about 300Kpps vs >>> -current from 06.10.2016. by bisecting cvs tree it seems that this >>> commit is guilty for this >>> >>> http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/net/if_ethersubr.c?rev=1.240&content-type=text/x-cvsweb-markup >>> >> >> I don't see how this change can affect performance in such a way >> unless you're sending jumbo packets, but then the packet rates >> are too high. Are you 100% sure it's this particular change? >> > > No, no, i'm not 100% sure. I was doing this to try to find bottleneck: > > cvs -q checkout -D "2016-10-XX" -P src > > 2016-10-06 - 900kpps > 2016-10-07 - 900kpps > 2016-10-10 - 900kpps > 2016-10-11 - 650kpps > 2016-10-11 with if_ethersubr.c 1.239 - 900kpps > ... > 2016-10-14 - 650kpps > 2016-10-14 with dlg@ patch - 900kpps > 2016-10-14 with dlg@ patch and with if_ethersubr.c 1.239 - 880kpps > .... > 2016-10-24 - results are in mail ... > > and then i looked at networking diffs from 2016-10-10 and 2016-10-11 and > it seems that if_ethersubr.c is guilty > > tests was done over ix only ... > > although as you can see with today's plain -current i'm getting 690kpps > and with today's -current with if_ethersubr.c 1.239 i'm getting 910kpps >
just please see that bge performance are the same with if_ethersubr.c 1.239 or 1.241. i haven't test myx, will do that ...
