On Sep 21, 2007, at 4:43 AM, Gregory Stark wrote:
"Csaba Nagy" <nagy@xxxxxxxxxxxxxx> writes:
On Fri, 2007-09-21 at 09:03 +0100, Gregory Stark wrote:
Mem: 32945280k total, 32871832k used, 73448k free,
247432k buffers
Swap: 1951888k total, 42308k used, 1909580k free,
30294300k cached
It seems to imply Linux is paging out sysV shared memory. In fact
some of
Heikki's tests here showed that Linux would do precisely that.
But then why is it not reporting that in the "Swap: used"
section ? It
only reports 42308k used swap.
Hm, good point.
The other possibility is that Postgres just hasn't even touched a
large part
of its shared buffers.
Sorry for the late reply...
No, this is on a very active database server; the working set is
almost certainly larger than memory (probably by a fair margin :( ),
and all of the shared buffers should be in use.
I'm leaning towards "top on linux == dumb".
--
Decibel!, aka Jim C. Nasby, Database Architect decibel@xxxxxxxxxxx
Give your computer some brain candy! www.distributed.net Team #1828
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