Date: Fri, 11 Dec 1998 03:46:46 +1100 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, gallatin@cs.duke.edu Cc: freebsd-current@FreeBSD.ORG Subject: Re: increased UDP latencies in -current Message-ID: <199812101646.DAA17987@godzilla.zeta.org.au>
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> > Other not very careful lmbench-2 tests show a 10% UDP time bloat in my > > version of -current over the last 18 months: > > > > *Local* Communication latencies in microseconds - smaller is better > > ------------------------------------------------------------------- > > Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP > > ctxsw UNIX UDP TCP conn > > --------- ------------- ----- ----- ---- ----- ----- ----- ----- ---- > > gamplex.b FreeBSD 2.2.6 9 34 41 85 155 91 199 351 > > gamplex.b FreeBSD 3.0-C 14 30 32 71 161 79 202 575 > > gamplex.b FreeBSD 3.0-C 13 28 31 70 75 190 653 > > gamplex.b FreeBSD 3.0-C 7 26 33 79 91 207 > > gamplex.b FreeBSD 3.0-C 7 27 34 74 83 209 > > gamplex.b FreeBSD 3.0-C 7 29 34 78 85 207 > > gamplex.b FreeBSD 3.0-C 7 26 35 85 80 211 > > gamplex.b FreeBSD 3.0-C 8 27 35 88 79 > > gamplex.b FreeBSD 3.0-C 5 25 36 75 161 77 217 > > gamplex.b FreeBSD 3.0-C 7 27 36 82 176 85 216 > > gamplex.b FreeBSD 3.0-C 6 27 35 80 82 210 > > gamplex.b Linux 2.1.128 6 28 52 74 169 92 222 > > >What are the differences between the many 'FreeBSD 3.0-C' entries? Is >it is primarily the date their kernel sources were checked out? Do you >have approximate dates? Here are the dates. They can't actually cover 18 months since the machine is only 11 months old :-). The 3.0 results are a bit old. The dates mostly match the checkout time closely except for 2.2.6. -rw-r--r-- 1 bde wheel 13668 Jan 8 1998 results/i386-freebsd3.0/gamplex.bde.org -rw-r--r-- 1 bde wheel 13496 Jan 8 1998 results/i386-freebsd3.0/gamplex.bde.org.1 -rw-r--r-- 1 bde wheel 15131 Apr 13 1998 results/i386-freebsd3.0/gamplex.bde.org.2 -rw-r--r-- 1 bde wheel 15132 Apr 15 1998 results/i386-freebsd3.0/gamplex.bde.org.3 -rw-r--r-- 1 bde wheel 15133 Apr 15 1998 results/i386-freebsd3.0/gamplex.bde.org.4 -rw-r--r-- 1 bde wheel 15021 May 30 1998 results/i386-freebsd3.0/gamplex.bde.org.5 -rw-r--r-- 1 bde wheel 14976 May 30 1998 results/i386-freebsd3.0/gamplex.bde.org.6 -rw-r--r-- 1 bde wheel 15044 Jun 19 23:03 results/i386-freebsd3.0/gamplex.bde.org.7 -rw-r--r-- 1 bde wheel 14501 Jul 31 05:08 results/i386-freebsd2.2.6/gamplex.bde.org -rw-r--r-- 1 bde wheel 15218 Jul 31 05:21 results/i386-freebsd3.0/gamplex.bde.org.8 -rw-r--r-- 1 bde wheel 15069 Jul 31 21:39 results/i386-freebsd3.0/gamplex.bde.org.9 -rw-r--r-- 1 bde wheel 12490 Nov 17 20:38 results/i586-linux/gamplex.bde.org.5 Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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