Date: Tue, 25 Apr 2000 01:40:02 -0700 (PDT) From: Kees Hendrikse <kees@echelon.nl> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/17842: Erratic user time reports for long running processes Message-ID: <200004250840.BAA70268@freefall.freebsd.org>
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The following reply was made to PR kern/17842; it has been noted by GNATS.
From: Kees Hendrikse <kees@echelon.nl>
To: sheldonh@uunet.co.za (Sheldon Hearn)
Cc: ech@echelon.nl (mailarchief Echelon)
Subject: Re: kern/17842: Erratic user time reports for long running processes
Date: Mon, 24 Apr 2000 02:12:02 +0200 (METDST)
Hi Sheldon,
> Excellent! Let me know what you find.
FreeBSD 4.0 doesn't trigger the "ANOMALY" output lines, but it exhibits
an interesting variation of the same problem: it just stops increasing
ru.ru_utime.tv_sec:
(...)
ce=459822 cu=378572
ce=459938 cu=378688
ce=460054 cu=378803
ce=460170 cu=378919
ce=460285 cu=379034
ce=460401 cu=379150
ce=460517 cu=379265 <--- that's all folks....
ce=460633 cu=379265
ce=460748 cu=379265
ce=460864 cu=379265
(...)
ce=545783 cu=379265
ce=545899 cu=379265
ce=546015 cu=379265
ce=546130 cu=379265
ce=546246 cu=379265
The program is still running...
top shows:
last pid: 9456; load averages: 1.00, 1.00, 1.00 up 6+07:57:54 01:42:24
15 processes: 2 running, 13 sleeping
CPU states: 0.4% user, 98.1% nice, 0.4% system, 1.2% interrupt, 0.0% idle
Mem: 4156K Active, 4072K Inact, 3500K Wired, 1576K Cache, 1023K Buf, 1052K Free
Swap: 64M Total, 60K Used, 64M Free
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
162 root 103 20 804K 236K RUN 129.5H 97.22% 97.22% pointless
(...)
/proc/162/status confirms the output of "pointless":
# cd /proc/162
# for i in 1 2 3 4 5
> do
> cat status
> sleep 2
> done
pointless 162 1 162 0 12,0 noflags 955986493,95119 379265,687860 16922,998963 nochan 0 0 0,0,0,2,3,4,5,20,31 -
pointless 162 1 162 0 12,0 noflags 955986493,95119 379265,687860 16923,228881 nochan 0 0 0,0,0,2,3,4,5,20,31 -
pointless 162 1 162 0 12,0 noflags 955986493,95119 379265,687860 16923,619831 nochan 0 0 0,0,0,2,3,4,5,20,31 -
pointless 162 1 162 0 12,0 noflags 955986493,95119 379265,687860 16924,10718 nochan 0 0 0,0,0,2,3,4,5,20,31 -
pointless 162 1 162 0 12,0 noflags 955986493,95119 379265,687860 16924,401572 nochan 0 0 0,0,0,2,3,4,5,20,31 -
^^^^^^^^^^^^^
What baffles me most: why stop counting at 379265,687860 seconds?
--
Kees Hendrikse | email: kees@echelon.nl
| web: www.echelon.nl
ECHELON consultancy and software development | phone: +31 (0)53 48 36 585
PO Box 545, 7500AM Enschede, The Netherlands | fax: +31 (0)53 43 36 222
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