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Re: Strange memory consumption
Hi Ariel,
Well, as I said, the problem was more or less solved, so now I cannot give
any more information than I gave at the time I had it. (Well, I can try to
reproduce it just for you, but... ;-)
Anyway, now I think there were two symptoms that I mixed. The high load
was apparently caused in some mysterious way by the huge swap partitions
+ files. However, looking back on the top output, I now think there was
nothing wrong with the memory consumption. The kernel simply had a
lot of memory cached and buffered, since it had nothing better to do with
it. I've never looked into it too much before, but now I checked several
linux boxes, and it seems quite a normal phenomenon to always have most
of the memory reported as used due to caching+buffering. I would like to
know if your experience is different.
By the way, the matlab process was quite idle when top output was
printed, but when it ran it ran at a reasonable speed, given the load.
Tuvik
On Wed, 25 Feb 1998, Ariel Biener wrote:
> Tuvik, can you send over more details ?? (like ps -xa; mount) and all
> kinds of pertinent info. Is this machine using NFS ?? Do you have any
> other details about it ?? That matlab process, is it running Ok ?
>
> --Ariel
> >
> > ------------------------------------------------------------------------
> > 11:54am up 4 days, 15:32, 6 users, loadaverage: 8.19, 7.76, 6.88
> > 62 processes: 58 sleeping, 1 running, 0 zombie, 3 stopped
> > CPU states: 1.1% user, 1.1% system, 2.1% nice, 97.9% idle
> > Mem: 257160K av, 213624K used, 43536K free, 41032K shrd, 76224K buff
> > Swap: 782224K av, 0K used, 782224K free 98096K cached
> >
> > PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND
> > 26992 ranit 0 0 10084 9.8M 4168 S 0 0.0 3.9 0:45 matlab
> > 27567 ranit 10 0 6644 6644 3132 S 0 0.7 2.5 0:18 xemacs
> > 3529 root 0 0 2124 2124 1336 S 0 0.0 0.8 0:14 xterm
> > 26938 ranit 0 0 1940 1940 828 S 0 0.0 0.7 0:03 rxvt
> > 26905 root 0 0 1788 1788 1444 S 0 0.0 0.6 0:00 xdm
> > 27107 ranit 0 0 1700 1700 828 S 0 0.0 0.6 0:09 rxvt
> > 27923 ranit 0 0 1700 1700 828 S 0 0.0 0.6 0:00 rxvt
> > 26922 ranit 0 0 1644 1644 1312 S 0 0.0 0.6 0:00 xmailbox
> > 26919 ranit 6 6 1584 1584 1252 S N 0 0.0 0.6 0:00 xload
> > 26921 ranit 0 0 1568 1568 1256 S 0 0.0 0.6 0:00 xclock
> > 26908 ranit 0 0 1308 1308 956 S 0 0.0 0.5 0:03 fvwm95-2
> > 327 root 0 0 1164 1164 1028 S 0 0.0 0.4 0:00 xdm
> > 3538 oran 0 0 1064 1064 624 S 0 0.0 0.4 0:01 tcsh
> > 27108 ranit 0 0 1044 1044 628 S 0 0.0 0.4 0:00 tcsh
> > 26914 ranit 0 0 1000 1000 800 S 0 0.0 0.3 0:00 FvwmTaskBar
> > 26913 ranit 0 0 992 992 816 S 0 0.0 0.3 0:00 FvwmButtons
> > 27924 ranit 1 0 972 972 628 S 0 0.0 0.3 0:00 tcsh
> >
> > ----------------------------------------------------------------------
> >
> > Any idea regarding what's going on here will be appreciated.
> >
> >
> > Thanks,
> > Tuvik
> >
> >
>
> +---------------------------------------------------------------+
> | Ariel Biener |
> | e-mail: ariel@post.tau.ac.il Work ph: 03-6406086 |
> | fingerprint = 07 D1 E5 3E EF 6D E5 82 0B E9 21 D4 3C 7D 8B BC |
> +---------------------------------------------------------------+
>
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