[LTP] [PATCH] lib: memutils: don't pollute entire system memory to avoid OoM

[Cyril Hrubis]

Hi!
> > I guess that this is another bug that should be fixed before the
> > release. I still think that the memory pollution is a best effort
> > operation and that we should be more conservative with the reserve. I
> > would go for a few percents of the free memory just to be extra sure
> > that we do not cause memory pressure.
> > 
> > If we go for 2% we will add following;
> > 
> > safety = MAX(safety, info.freeram / 50);
> > 
> > Also it looks like info.freeram is the same as MemFree: from
> > /proc/meminfo, I guess that this is not wrong, since memory that have
> > been used in buffers is dirty enough for our case.
> 
> I'd recommend dividing by a power of 2 (either 32 or 64) but other than
> that, I completely agree.

Sounds good.

Krzysztof unless you disagree I will push your patch but change the
division factor from 200 to 64.

-- 
Cyril Hrubis
chrubis@suse.cz