[mythtv-users] 64 Bit and memory
esejr at wildroseinternet.ca
Fri Jan 11 19:12:48 UTC 2008
On Thu, 10 Jan 2008 09:23:43 -0500, Richard Freeman
<r-mythtv at gw.thefreemanclan.net> wrote:
> Marc wrote:
>> I'm running a SVN(15354) frontend/backend on Gentoo with 32 bits and I'm
>> seeing this problem.
>> asgard ~ # free -m
> > snip...
> I just noticed these posts. If you're concerned about memory leaks /
> etc looking at the output of free is just about useless. Look at how
> much memory individual processes are taking up instead.
> It is completely normal for a linux system with 500GB of memory and at
> least as much hard drive space to swap to disk, and report most of the
> memory as in use just about all the time.
> The reason memory seems to be always in-use is that "free" memory in
> linux is memory that is not being used AT ALL for any purpose. Linux
> tries to minimize the amount of completely-unused memory - preferring to
> use it for buffering or cache. When the memory is needed the cache is
> purged and the buffers are flushed. This only improves system
> performance by reducing disk access. If memory isn't needed for
> something else you might as well use it as cache - it doesn't cost
> anything as cache can be instantly purged to be made available.
I upgraded to SVN Revsion 15043 and I am no longer having this memory
issue. Whatever it was, it seems to have been fixed.
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