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Date:      Sat, 30 Oct 1999 16:43:01 -0700 (PDT)
From:      "Jonathan M. Bresler" <jmb@hub.freebsd.org>
To:        alc@cs.rice.edu
Cc:        ticso@cicely.de, current@freebsd.org
Subject:   Re: copy-on-write optimized faults
Message-ID:  <19991030234301.23827151B2@hub.freebsd.org>
In-Reply-To: <19991029195243.E28768@cs.rice.edu> (message from Alan Cox on Fri, 29 Oct 1999 19:52:43 -0500)
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i gets lots of "copy-on-write optimized faults".  bu tthis may be a
corner case.

just rebooted my box.  its used for ppp with nat aliasing and is in the
middle of a cvsup follwed by 'cvs update -PAd'.  the box is fairly
weak....40MB in a AMD 5x86-133MHz.

Aspen:[208] uptime
 7:39PM  up 29 mins, 1 user, load averages: 0.24, 0.32, 0.31
Aspen:[209] uname -a
FreeBSD Aspen.Bresler.ORG 3.0-CURRENT FreeBSD 3.0-CURRENT #3: Sun Jan
17 08:06:24 EST 1999     jmb@Aspen.USi.NET:/usr/src/sys/compile/ASPEN
i386
Aspen:[210] vmstat -s
   111374 cpu context switches
   612451 device interrupts
    85189 software interrupts
    81251 traps
   758392 system calls
       16 swap pager pageins
       16 swap pager pages paged in
        5 swap pager pageouts
        5 swap pager pages paged out
     1181 vnode pager pageins
     6014 vnode pager pages paged in
        1 vnode pager pageouts
        1 vnode pager pages paged out
      115 page daemon wakeups
    83486 pages examined by the page daemon
       22 pages reactivated
     8410 copy-on-write faults
     1264 copy-on-write optimized faults
     6715 zero fill pages zeroed
      929 zero fill pages prezeroed
       17 intransit blocking page faults
    52423 total VM faults taken
    40739 pages freed
      114 pages freed by daemon
      615 pages freed by exiting processes
     4131 pages active
     1967 pages inactive
      796 pages in VM cache
     2477 pages wired down
      125 pages free
     4096 bytes per page
  1162355 total name lookups
          cache hits (84% pos + 0% neg) system 2% per-directory
          deletions 0%, falsehits 0%, toolong 0%
Aspen:[211] 


jmb


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