[ubuntu-uk] Ubuntu unusably slow

[Neil Greenwood]

Doesn't look like the swap is thrashing the disk - there's memory and swap
free, but I/O is blocking 56% of the CPU time. Next time it happens, try
getting the vmstat output that Alan suggested.

Neil.
On Feb 10, 2013 5:49 PM, "Gareth France" <gareth.france at gmail.com> wrote:

>  On 07/02/13 18:54, Alan Pope wrote:
>
> On 07/02/13 15:55, Gareth France wrote:
>
> On 07/02/13 15:50, Alan Pope wrote:
>
> On 07/02/13 15:12, Colin Law wrote:
>
> On 7 February 2013 14:18, Alan Pope <alan.pope at canonical.com><alan.pope at canonical.com>wrote:
>
> On 07/02/13 12:47, Gareth France wrote:
>
>
> I've just had a peek and apparently it's using swap memory right now!
> Memory 1.5Gb of 3.5Gb used
> Swap 658.9Mb of 3.7Gb used
>
>
> Using swap is not a problem. Swapping is the problem.
>
>
> It is unusual though to see half a gig in swap when less than half of
> the RAM is is use, is it not?  For example mine has been on all day
> and is still showing zero swap (I have 4GB RAM).  Does it not mean
> that at some point something has been using a lot?
>
>
> Not necessarily. It means some was _allocated_. Doesn't mean the box
> was swapping heavily. I am not inclined to take those numbers at face
> value. I'd rather see the first 10 lines from top pasted.
>
> Cheers,
>
> Ask and ye shall receive.
> www.cliftonts.co.uk/top.png
>
>
> So no swap problem there. You have gobs and gobs of free RAM.
>
> Cheers,
>
> Just as I was beginning to think we'd got it sorted my system really
> ground to a halt. After about 20 minutes of patiently trying to switch
> windows I got a screenshot (sorry) of top. Copying text just wasn't an
> option as everything was virtually unusable and I'm not sure if I captured
> it too late or not. Thoughts everyone?
>
> www.cliftonts.co.uk/top2.png
>
> --
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>
>
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