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just a thought. A server environment might benefit from setting the |
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swappiness factor higher. try echo "100" > /proc/sys/vm/swappiness |
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|
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On Sat, 31 Jul 2004 07:27:36 -0600, Gyujin Park <gpark@××××××.com> wrote: |
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> Yes, response in Apache, and vsFTP gets really slow until more memory frees out. |
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> (Report from users and other admins while I was testing the system.) |
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> |
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> Thanks, |
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> |
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> Tom |
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> |
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> On Fri Jul 30 20:42 , Colin Kingsley <ckingsley@×××××.com> sent: |
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> |
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> >As far as I know, your system should be stable. The details of how |
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> >much memory/swap is used at any given moment probably depends on your |
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> >kernel, how much memory you have, etc. |
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> > |
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> >Do you have any actual evidence of the slow down you mentioned? the |
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> >system should begin using swap when/if it needs to. it looks to me |
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> >like you discovered the "free" command and are seeing problems where |
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> >none exist. |
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> > |
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> >On Sat, 31 Jul 2004 03:53:58 +0200, lukas lukas@××××××.de> wrote: |
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> >> On Saturday 31 July 2004 02:42, Gyujin Park wrote: |
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> >> > Does this mean the system will be still stable with 99% memory usage? |
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> >> > I mean, at some point it should turn into swap. The system reaches up |
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> >> > to 99% physical memory usage with less than 3 MB of physical memory |
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> >> > left. |
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> >> |
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> >> "free" gives me the following outout on my workstation: |
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> >> |
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> >> total used free shared buffers cached |
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> >> Mem: 1550840 1308096 242744 0 94244 859148 |
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> >> -/+ buffers/cache: 354704 1196136 |
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> >> Swap: 522104 23868 498236 |
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> >> |
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> >> About 84% memory is used. But about 900MB are used for caching and |
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> >> buffering, so in fact there are only about 346MB in "real use". |
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> >> If your memory is 99% without buffers and cache, then there is |
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> >> something wrong (but I don't know what). |
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> >> Can you see a process that consumes that much memory when you are |
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> >> calling "ps" or "top"? |
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> >> What kind of kernel do you use? |
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> >> |
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> >> cu |
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> >> |
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> >> lukas |
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> >> |
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> >> |
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> >> |
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> > |
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> >-- |
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> >gentoo-performance@g.o mailing list |
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> > |
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> |
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> |
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> -- |
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> |
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> |
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|
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