Date: Sun, 17 Feb 2002 00:18:13 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: arch@FreeBSD.ORG, jhb@FreeBSD.ORG Subject: buildworld comparison stable vs current Message-ID: <200202170818.g1H8ID067573@apollo.backplane.com>
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Here are the results of a buildworld test building the -current
source tree on a SMP stable box and on a SMP current box. There was
some interest at BSDCon for a comparison just to see where we were.
Everything matches up except time and context switches, the context
switches I presume is because interrupts require context switches
in -current.
The time difference is 1800 seconds (stable) verses 2219 seconds (current),
making stable 1.23 times faster then current at the moment. I consider
this a fairly good number for where we are, and to be expected
considering the lack of optimizations in current.
-Matt
(note: source is NFS mounted. /usr/obj is local disk).
buildworld -j 10 of current on an SMP stable box:
1800.50 real 1445.93 user 760.32 sys
25860 maximum resident set size
971 average shared memory size
1164 average unshared data size
130 average unshared stack size
11062987 page reclaims
297 page faults
0 swaps
2013 block input operations
5649 block output operations
1540227 messages sent
1530792 messages received
6 signals received
2467550 voluntary context switches
1357575 involuntary context switches
buildworld -j 10 of current on an SMP current box (same hardware specs):
2219.13 real 1796.37 user 968.04 sys
25884 maximum resident set size
912 average shared memory size
1045 average unshared data size
126 average unshared stack size
11677133 page reclaims
537 page faults
0 swaps
8438 block input operations
6774 block output operations
1439793 messages sent
1439774 messages received
6 signals received
28670930 voluntary context switches
2836255 involuntary context switches
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