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Matthias Bethke wrote: |
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> Hi Zhang, |
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> on Mon, Nov 03, 2008 at 06:24:00PM +0800, you wrote: |
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>> I hope I can configure the system so that any process uses more than 50% |
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>> of memory are automatically killed. first I was recommend to use ulimit |
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>> by googling around. However this seems doesn't work even if I set both |
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>> -d and -m (here is my .xinitrc) |
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>> |
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>> ~$ cat .xinitrc |
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>> #export XMODIFIERS=@im=FCITX |
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>> #fcitx & |
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>> ulimit -d 300000 |
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>> ulimit -m 300 |
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>> exec /usr/bin/fluxbox |
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>> |
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>> |
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>> Result: OpenOffice stands still even when it takes 80% memory (read from |
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>> top). |
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>> So: is ulimit the solution? If so, what option should I set? |
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> |
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> I interpret the above as "use a maximum of 300,000 KiB of memory, of |
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> which 300 may be resident (i.e. in physical memory) and 299,700 swapped |
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> out." That doesn't sound good, although I'm not sure I'm reading it |
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> correctly. |
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Sorry, it seems I used these parameter without care. I guess I only need |
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to set physical memory limit, a.k.a. resident memory. |
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OT: I don't know why I have |
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max locked memory (kbytes, -l) 32 |
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But it has been like that before I set ulimit. |
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> What I do is use /etc/sercurity/limits.conf (from pam_limits) with a |
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> couple of entries like those: |
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> | @users hard nproc 1000 |
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> | mb hard nproc 5000 |
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> | @users hard as 2097152 |
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> | mb hard as 6291456 |
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> | mb hard nice -5 |
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> | mb hard rtprio 5 |
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> Meaning, everyone but me (mb) may use up to 1000 processes per login, |
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> with a max. address space of 2 GiB each; for myself the limit is 6 GiB |
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> and 5k processes. Myself I cannot accidentially set a negative |
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> nice-value because I left the soft limit at its default (0 for non-root |
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> users) but using ulimit I can set it to the hard limit of -5 and nice-up |
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> processes even as a normal user. |
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I don't have a file called /etc/sercurity/limits.conf and neither can I |
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find information about it by using 'man limits.conf'. Further I couldn't |
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find a package called pam_limits to emerge. Can you give me some clue which |
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package I should emerge in order to set limits.conf ? |
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Thank you very much for prompt help! |
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