* [gentoo-user] limit maximum memory size of any process
@ 2008-11-03 10:24 99% Zhang Weiwu
0 siblings, 0 replies; 1+ results
From: Zhang Weiwu @ 2008-11-03 10:24 UTC (permalink / raw
To: gentoo-user
Hello.
In my daily us of computer any process that takes more than 50% of the
memory (I read from top, not knowing if this is 50% of 384MB physical or
50% of having 800MB swap counted in) must have gone wrong, and usually
drag performance down to such extent that killing it is impossible
(because not possible to launch a terminal window to type kill -TERM).
Examples are:
1. Firefox opens a broken website that wish to send 10M binary
content to the browser window;
2. OpenOffice opens a document incorrectly;
3. Mistake in Java software (usually it keep eating memory);
I hope I can configure the system so that any process uses more than 50%
of memory are automatically killed. first I was recommend to use ulimit
by googling around. However this seems doesn't work even if I set both
-d and -m (here is my .xinitrc)
~$ cat .xinitrc
#export XMODIFIERS=@im=FCITX
#fcitx &
ulimit -d 300000
ulimit -m 300
exec /usr/bin/fluxbox
Result: OpenOffice stands still even when it takes 80% memory (read from
top).
So: is ulimit the solution? If so, what option should I set? My current
ulimit is:
$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) 300000
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 3072
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) 300
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 3072
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
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