What is hammering my memory?
marius at pov.lt
Fri Jul 2 16:54:18 UTC 2010
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
- 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
* 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).
Did you hear that the author of _Nitpicking for Dummies_ has just
received it back from the publisher with the 182nd set of editorial
-- Bill Snyder
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