ASU - out of memory?
Carsten Haitzler (The Rasterman)
raster at openmoko.org
Fri Aug 22 02:50:21 CEST 2008
On Thu, 21 Aug 2008 18:49:33 +0200 Tilman Baumann <tilman at baumann.name> babbled:
> And come on. Software is not perfect. Sometimes we have to live with a
> dreamteam like (old) firefox and x11. I had times when they had both
man it gets annoying people blaming x11 for memory problems. it is rarely a
cause. it LOOKs bad because it is allocating ram FOR client apps (like firefox)
- when firefox asks for 300mb of pixmaps.. the memory sits in x11 - not in
firefox. use xrestop. example:
res-base Wins GCs Fnts Pxms Misc Pxm mem Other Total PID Identifier
1c00000 333 435 1 374 332 36940K 26K 36967K 15872 Main - Mozilla
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15872 raster 20 0 432m 198m 27m S 11 6.0 1:09.77 firefox
it's simple - but firefox has alone ASKED x to allocate just under 37mb of
pixmap memory... and that is not included in firefox's base - everyone goes
around blaming x. x invariably is the victim of its clients resource requests
and the need of having to MAP lots of video card memory and resources into its
space - thus looking big (though it really just brought in video memory and
card registers in - not real memory).
> hundreds of megs virtual mem. But everything was fine because it all was
> just harmlessly been swaped away. I restarted them every weekend to not
> let it become worse.
> Not ideal, but should the system rather be unusable in this condition?
we should have a userspace oom that on low-memory kills off "user apps" (not
xserver or wm or basic required processes - just optional ones like calculator,
addressbook, web browser etc.) when things get low - not going and adding swap.
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Carsten Haitzler (The Rasterman) <raster at openmoko.org>
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