What is using all this memory?

[Amedee Van Gasse]

On Wed, June 6, 2012 18:27, Dotan Cohen wrote:
> On Mon, Jun 4, 2012 at 2:46 PM, Amedee Van Gasse
> <amedee-ubuntu at amedee.be> wrote:
>> Have you read http://www.linuxatemyram.com/ ?
>> I see that a lot of caching is going on. This is actually good, this
>> means
>> that your memory is being used efficiently.
>>
>> OK, 25% of your swap is also used. But that can be for any number of
>> reasons.
>> Give the command "sudo swapoff" in a terminal and run "free -m" again.
>> Typical modern desktop systems don't really need swap anyway for typical
>> desktop usage like browsing, sending emails, playing Farmville... :)
>>
>
> Thank you, that page is very concise and informative. However, I
> should mention that the system was extraordinarily sluggish, to the
> point of being unusual. It felt like very heavy swapping or high CPU,
> but the CPU usage was reportedly not very high. I should mention that
> the mouse cursor was lagging as well, which looks more like a CPU
> problem and less like a RAM problem.

Probably.
If your system is swapping a lot, then you should also see a lot of disk
I/O. iostat can help you there.


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