On Sat, Jul 05, 2014 at 12:45:55AM +1000, Russell Coker wrote:
> > But the last times I had this OOM problem with 3.15.1 it was happening
> > within 6 hours sometimes, and I was not starting scrub every time the
> > system booted, so scrub may be partially responsible but it's not the
> > core problem.
>
> It would be a good idea to run a few scrubs and see if this is a repeatable
> problem. If it's a repeatable problem then it's something to fix regardless
> of whether it's the only issue you have.
Fair point. Re-running scrub now. That will take 36H or so :)
> If a scrub can reliably trigger the problem it would be good to test 3.14 for
> the same behavior. Knowing whether it's a regression would help the
> developers.
I'm already back to 3.14. 3.15 was dying about once a day without scrub,
enough that this was causing me real problems (it's a server that is
supposed to do work :) ).
> Even without much swap 8G should be a plenty. My main workstation has 4G of
> RAM and 6G of swap. I almost never use more than 3G of swap because the
> system becomes so slow as to be almost unusable when swap gets to 4G (Chromium
> is to blame). However that is for a 120G non-RAID filesystem. Presumably a
> RAID array will need some more kernel memory and a larger filesystem will also
> need a little more, but it still shouldn't be that much.
You're correct. I only have more swap than ram, both as a habit in case
I ever want to hibernate a system (I don't with this one) and in case
some userland stuff leaks a lot (I've had versions of Xorg leak and that
would improve the time between which I had to restart X and lose all my
window state :) ).
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
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