Date: Mon, 15 Oct 2001 14:25:26 -0700 (PDT) From: Matt Sykes <matt-sykes@excite.com> To: mikea <mikea@mikea.ath.cx> Cc: freebsd-questions@freebsd.org, freebsd-stable@freebsd.org Subject: Re: 0.00% CPU for all processes Message-ID: <11182819.1003181127845.JavaMail.imail@patti.excite.com>
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On Mon, 15 Oct 2001 16:14:44 -0500, mikea wrote: > On Mon, Oct 15, 2001 at 01:50:51PM -0700, Matt Sykes wrote: > > > Looks like it works! > > > > In top, cvsup gradually comes up to about 40%, stays there a while, > > then disappears (I couldn't think of another longish process to test > > with). I guess that's correct. Before it would start at 2% then > > quickly go back to 0%. > > > > dmesg says "Timecounter 'PIIX' frequency 3579545"; I guess that's > > alright. > > > > One thing which surprises me, though --- all other processes are zero. > > Is this normal? This is my first time seeing FreeBSD run. I have an > > identical box here running linux (and each box runs a minimum of > > services), where at least top will show nonzero CPU percentage in top, > > usually around 0.5%. Does linux have more fine-grained timing, or is > > it cheating, or does the margin of error render this test essentially > > meaningless anyway? > > You could install Setiathome; it's a useful thing to do and it will > definitely keep your CPU 100% busy all the time. > > Here's a quite typical "top" display for my 2xPIII-866 machine: > > > last pid: 23745; load averages: 2.00, 2.02, 2.00 up 6+22:34:59 16:10:31 > > 90 processes: 3 running, 87 sleeping > > CPU states: 0.2% user, 98.6% nice, 1.0% system, 0.2% interrupt, 0.0% idle > > Mem: 132M Active, 687M Inact, 143M Wired, 35M Cache, 112M Buf, 5664K Free > > Swap: 858M Total, 4K Used, 858M Free > > > > PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND > > 436 nobody 62 1 15524K 15360K RUN 1 161.2H 98.97% 98.97% setiathome > > 439 nobody 62 1 19632K 19452K CPU0 0 161.2H 98.24% 98.24% setiathome > > 23745 mikea 29 0 2032K 1096K CPU1 0 0:00 0.94% 0.24% top > > 508 mikea 2 0 63724K 60848K select 0 36:54 0.00% 0.00% XF86_SVGA > > 322 root 2 0 900K 444K select 1 31:46 0.00% 0.00% moused > > 237 root 2 0 524K 320K select 0 4:02 0.00% 0.00% natd > > 531 mikea 2 0 2348K 1476K select 0 2:43 0.00% 0.00% xclock > > 395 root 2 0 1972K 1192K select 1 2:29 0.00% 0.00% nmbd > > 530 mikea 2 0 2440K 1616K select 0 1:48 0.00% 0.00% xload > > 261 root 2 -12 1284K 784K select 1 1:34 0.00% 0.00% ntpd > > 410 root 2 0 2328K 1400K select 0 0:46 0.00% 0.00% httpd > > 572 root 4 0 3988K 2612K bpf 1 0:44 0.00% 0.00% tcpdump > > 578 root 2 0 2496K 1620K select 0 0:41 0.00% 0.00% sendmail > > 512 mikea 2 0 2812K 2140K select 1 0:15 0.00% 0.00% fvwm2 > > 906 root 2 0 2652K 2044K select 0 0:14 0.00% 0.00% named > > 387 root 2 0 532K 300K select 0 0:06 0.00% 0.00% dhclient > > 254 root 2 0 936K 584K select 1 0:05 0.00% 0.00% syslogd > > 616 mikea 2 0 4580K 3772K select 1 0:04 0.00% 0.00% xterm > > 22246 mikea 2 0 16704K 14264K select 1 0:04 0.00% 0.00% netscape.bin > > This was with these services running: > Apache, VNC, 2 telnet sessions, natd and ipfw for the other 5 > boxes in my network, and bunches of other stuff. Don't expect > to see them unless they really use enough CPU to be noticeable > -- and modern CPUs generally are fast enough that little things > like telnet and natd just won't show up. > You showed my point, I think. Top shows at 0.24% for your machine, and your CPU is many times faster. Since mine is *always* at 0.00%, I'm still not completely convinced my clock problem has been solved. -Matt _______________________________________________________ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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