2.5.68-mm2: Memory & swap issues ?

2.5.68-mm2: Memory & swap issues ?

[Philippe Gramoullé]

Hi,

I just wanted to know if there had been some issues regarding memory and/or swap ?

I've been running 2.5.68-mm2 for about 3 weeks now:

$ uptime 
 13:14:43 up 21 days,  2:02, 23 users,  load average: 2.23, 2.25, 2.26

So far, my 600 Mb swap partition is almost full as shown on the following graphs:

http://philou.org/2.5.68-mm2/graph.php.html

dark yellow color is for _remaining_ swap memory.

$ free

             total       used       free     shared    buffers     cached
Mem:        514452     485336      29116          0       7812      66664
-/+ buffers/cache:     410860     103592
Swap:       618460     603320      15140

$ cat /proc/meminfo

MemTotal:       514452 kB
MemFree:         20720 kB
Buffers:          8200 kB
Cached:          74148 kB
SwapCached:      38488 kB
Active:         412740 kB
Inactive:        12824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       514452 kB
LowFree:         20720 kB
SwapTotal:      618460 kB
SwapFree:        15156 kB
Dirty:            7228 kB
Writeback:           0 kB
Mapped:         337808 kB
Slab:            57520 kB
Committed_AS:  1023568 kB
PageTables:       2804 kB
VmallocTotal:   516040 kB
VmallocUsed:      3308 kB
VmallocChunk:   512688 kB


Usage is typical desktop with many eterms, Opera, mozilla, Pan, Sylpheed , postfix, Enlightenement, xmms etc.. opened all the time.
Hardware is DELL MT530 ( 1.5Ghz XEON SMP,512 Mo RAM, Debian Unstable , Dual heads with Nvidia opensource nv driver)

Should i look into memory leaks with those programs instead ?

Thanks,

Philippe

Re: 2.5.68-mm2: Memory & swap issues ?

[Andrew Morton]

Philippe Gramoullé  <philippe.gramoulle@mmania.com> wrote:
>
> MemTotal:       514452 kB
> MemFree:         20720 kB
> Buffers:          8200 kB
> Cached:          74148 kB
> SwapCached:      38488 kB
> Active:         412740 kB
> Inactive:        12824 kB
> HighTotal:           0 kB
> HighFree:            0 kB
> LowTotal:       514452 kB
> LowFree:         20720 kB
> SwapTotal:      618460 kB
> SwapFree:        15156 kB
> Dirty:            7228 kB
> Writeback:           0 kB
> Mapped:         337808 kB
> Slab:            57520 kB
> Committed_AS:  1023568 kB
> PageTables:       2804 kB
> VmallocTotal:   516040 kB
> VmallocUsed:      3308 kB
> VmallocChunk:   512688 kB

Are you sure you don't have some big leaky application which is swapped
out?

Check `top', `ps aux', etc, see if something has a big virtual size.

Restart the X server.

See if swapoff -a invokes the oom-killer ;)

Failing all that, it might be a swapspace accounting error.