Iain Buchanan wrote:
Hi,
over the last week or so I've noticed unusually large swap usage. I
usually hibernate this laptop and have uptimes up to 12 days so apps can
run for a long time. I don't usually use any swap space (except for a
few k).
If I swapoff and swapon, the usage falls back to zero but then creeps up
again over a few days.
$ free -m
total used free shared buffers cached
Mem: 3040 859 2181 0 38 415
-/+ buffers/cache: 406 2634
Swap: 494 431 62
nothing unusual there, except for the swap usage itself. 'top' doesn't
show any large apps. sorted by mem the top 4 are:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8318 iain 20 0 494m 150m 21m S 0 5.0 1:20.67 evolution
20424 iain 20 0 342m 77m 30m S 0 2.5 0:01.84 firefox
8009 root 20 0 83364 37m 6260 S 7 1.2 38:34.31 X
8090 iain 20 0 159m 32m 1600 S 1 1.1 3:48.08 skype
Hm, I just noticed Mem is in %. % of what? % total or % used? Even if
it was % of total RAM that could be as much as 152Mb for evo and 76Mb
for firefox. Not that much really.
any ideas?
thanks :)
I ran into this a while back and noticed that a setting got changed and
I didn't know about it. Still no idea what changed it but you can
check the setting with this:
r...@smoker / # cat /proc/sys/vm/swappiness
20
r...@smoker / #
The lower the number, the less often it will use swap. I have swap on
some slow drives and 2Gbs of ram so I don't want swap used unless it
will keep me from crashing. You can use echo to change the setting and
I actually added this to rc.conf to set it at bootup:
echo 20 > /proc/sys/vm/swappiness
May not be the problem but worth checking into at least.
Dale
:-) :-)
