Mailinglist Archive: opensuse-kde (115 mails)

[Lubos Lunak <l.lunak@xxxxxxx>]

On Wednesday 20 of May 2009, Anshul Jain wrote:
> On Wed, May 20, 2009 at 2:20 PM, Lubos Lunak <l.lunak@xxxxxxx> wrote:
> >  One possible and very likely answer is that you are just not measuring
> > properly, since it's very non-trivial to measure memory usage on Linux
> > and 99.9% people get it wrong. See http://ktown.kde.org/~seli/memory/ .
> >
> >  If you are sure your numbers are right, then the easiest option would be
> > finding out what uses that memory.
> >
> > PS: It is possible to get Exmap from home:/llunak:/mix repo, but it
> > crashes on 64bit for an unknown reason.
> Yes, you're right...measuring memory under Linux is not an easy task
> since it involves a ton of parameters. Now what did surprise me was
> the difference in memory usage between 11.0 and 11.1 using the *same*
> utility, i.e. htop. I can understand htop being a ways off in its
> measurement...but a delta measurement between 11.0 and 11.1 should be
> atleast some indicator...right?

 No. Doing something wrong the same way twice doesn't necessarily mean the 
results will be wrong the same way.

> I tried to narrow down the specific app that consumed memory...and
> didn't see anything going out of control. X, kded, plasma, krunner etc
> used pretty much the same amount of memory as they did in
> 11.0...except that the overall usage was considerably higher. Maybe
> its the kernel? I wouldn't know...just guessing thats all.

 I can't tell you much more than what I've already said, maybe except that in 
benchmarking there is not much room for guessing.

-- 
Lubos Lunak
KDE developer
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