Sorry to bother you again, but I want to make sure that I am reading
this right. This is the output from the 'free' command:
[root@server /root]# free
total used free shared buffers cached
Mem: 516952 503816 13136 59912 87784 335176
-/+ buffers/cache: 80856 436096
Swap: 1028120 680 1027440
Does this look ok? I am thinking that maybe the big "used" memory number
is simply being used for cache (the large cache number hints at this).
So, does this mean that the cache memory is not really "used" so much as
just being utilised for optimization? Would it be made available if some
other process (e.g. apache) needed it?
Again, sorry to bring this up, I realize it's not really about Embperl -
it's just that there are a lot of knowledgeable people here, and I want
to make sure the server problems I was experiencing are not due to me
being brain dead (as usual)...
TIA
-Neil
Andre Landwehr wrote:
>
> On Thu, Mar 22, 2001 at 03:19:51PM -0500, Neil Gunton wrote:
> > And moreover, I could see it starting to use swap space, which
> > simply should not happen with the kind of minimal load the machine is
> > under.
>
> It's quite common (at least in Linux, don't know about other
> unices) to use swap space even if huge amounts of memory
> are unused yet. In most cases this will increase the overall
> performance of a system because memory pages that are not used
> very often will get swapped out immediately and not just-in-time
> for another process to allocate all the memory it needs.
>
> Andre
>
> --
> /"\
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>
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