Messages in this thread | | | Date | Wed, 12 Oct 2005 02:38:51 -0400 (EDT) | From | Steven Rostedt <> | Subject | Re: Latency data - 2.6.14-rc3-rt13 |
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On Tue, 11 Oct 2005, Lee Revell wrote:
> On Tue, 2005-10-11 at 18:09 -0700, Mark Knecht wrote: > > Should free memory drop like that over time? > > Yes this is perfectly normal. When a system first boots all the memory > your apps aren't using is initially free. As applications access more > data over time then it will be cached in memory until free memory drops > to near zero. > > "Free memory" is actually wasted memory - it's better to use all > available RAM for caching. >
But the swap being touched bothers me. Although I've had problems with leaving Mozilla up for long times and it leaking. Without Mozilla running and running lots of other apps, I have almost 100% memory used, but 0% swap.
If the swap starts to increase slowly over time, you _do_ have a leak somewhere. Probably not in the kernel (kernel memory never goes into swap). But if you want to see if the kernel is leaking, examine /proc/slabinfo once in a while and if you see something there constantly growing, then that might indicate a leak. Just pay attention to the first column.
-- Steve
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