slow karmic system
glgxg at sbcglobal.net
Tue Jun 29 22:28:03 UTC 2010
On 06/29/2010 02:46 PM, Joep L. Blom wrote:
> NoOp wrote:
>> But it sounds to me like you have an app that has a memory leak. I'd run
>> top or htop in a terminal over the 5 days and monitor your memory usage.
> As usual your suggestions are invaluable!
> I looked in the link you gave and found there a little script to empty
> your swap and bring it all in memory. The amazing thing is that using
> that script my free memory goes to 50 % and my free swap space is 100 %.
> The system is quick. The only thing is the eventual memory leakage. I
> will not yet run ntop or htop continuously as it takes gives an overhead
> and it is more useful - in my eyes - to use free and record its output
> over a longer time. That gives you memory 'snapshots' and it can easily
> be implemented in a cron job.
> After I started VMware player free memory drops to 25 % and Free swap
> drops to 99 %. I will see if that is the process with memory leaks.
> But thanks very much for the link,
Another quick & easy way to clear swap is:
$ sudo swapoff -a
[you'll see it clear]
$ sudo swapon -a
[that will turn it back on]
I've had cases where swap was used (primarily when using virtualbox) and
then doesn't seem to clear after the app is closed. Can't pin it down
just yet, but swapoff/swapon seems to do the trick.
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