What is hammering my memory?
dotancohen at gmail.com
Tue Jul 6 05:59:48 UTC 2010
On 2 July 2010 19:54, Marius Gedminas <marius at pov.lt> wrote:
> On Fri, Jul 02, 2010 at 07:22:42PM +0300, Dotan Cohen wrote:
>> Then what should I check to see what is causing the system to be sluggish?
> 'vmstat 1' in a terminal, then do something sluggish and post the output
> Usual causes include:
> * disk I/O
> - e.g. some process in the background is indexing your filesystem
> - or you are out of RAM and there's swapping (which you've already
> ruled out)
> - the kernel is doing a background RAID-1 resync every Sunday
> morning (unlikely for laptops, though ;)
> * CPU is bottle-necked
> - some background process is doing something computation-intensive
> - you're being flooded with network packets and the kernel is
> hogging the CPU processing them (also unlikely for laptops; but
> try to enable network shaping on an ancient Pentium PC used as an
> office router...)
> * poor video drivers causing screen redraws to be slow (depends on
> your graphics hardware, video driver, driver configuration, and
> applications you're running; also, I think this would show up as CPU
> usage on top).
> Marius Gedminas
Thanks. I cannot reproduce the sluggishness now. But I'll keep trying.
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