Date: Sat, 30 Oct 1999 00:47:40 +0200 From: Bernd Walter <ticso@cicely.de> To: Alan Cox <alc@cs.rice.edu> Cc: current@FreeBSD.ORG Subject: Re: copy-on-write optimized faults Message-ID: <19991030004740.A66148@cicely7.cicely.de> In-Reply-To: <19991029144743.Z16685@cs.rice.edu> References: <19991029144743.Z16685@cs.rice.edu>
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On Fri, Oct 29, 1999 at 02:47:43PM -0500, Alan Cox wrote:
> I would appreciate it if people running -current would run a "vmstat -s"
> and tell me if they see a NON-ZERO value for copy-on-write optimized
> faults. About six months ago, I implemented a simpler and more general
> optimization at an earlier "fork in the road". (In effect, I avoid
> the creation of the redundant vm object that "copy-on-write
> optimized faults" applies to.)
>
FreeBSD hostname 4.0-CURRENT FreeBSD 4.0-CURRENT #0: Wed Aug 11 11:23:23 MEST 1999 root@hostname:/src-1999-08-11/src/sys/compile/NEWS i386
3325566750 cpu context switches
2596854967 device interrupts
2136604495 software interrupts
1271826739 traps
46150007 system calls
61624 swap pager pageins
112128 swap pager pages paged in
31565 swap pager pageouts
85043 swap pager pages paged out
38840995 vnode pager pageins
186716751 vnode pager pages paged in
0 vnode pager pageouts
0 vnode pager pages paged out
505056 page daemon wakeups
3944380399 pages examined by the page daemon
152840736 pages reactivated
307625181 copy-on-write faults
26 copy-on-write optimized faults
380211274 zero fill pages zeroed
69731544 zero fill pages prezeroed
3214815 intransit blocking page faults
1073175932 total VM faults taken
3678368459 pages freed
22 pages freed by daemon
465592939 pages freed by exiting processes
186149 pages active
21595 pages inactive
9359 pages in VM cache
39949 pages wired down
449 pages free
4096 bytes per page
-1570702195 total name lookups
cache hits (110% pos + -9% neg) system 0% per-directory
deletions 0%, falsehits 0%, toolong 0%
Ops - looks like some counters have overun...
--
B.Walter COSMO-Project http://www.cosmo-project.de
ticso@cicely.de Usergroup info@cosmo-project.de
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