Hello,
I'm here experiencing an alarming problem (not just KDE or so,
but the kernel): I have a laptop with a quadcore i5 processor,
but the system doesn't want to use it!
That's not good, since I rely on doing computational experiments with
my laptop, and, of course, I purchased the quadcore laptop to do exactly that.
More precisely:
A month ago, after having installed Suse 11.3, I already experienced that Linux
hesitates to use all four cores, say, it puts the first four processes on the
first core etc., never used all. But after running experiments for one day or so,
it "warmed up", and from then on it worked. I didn't turn it off for a month,
and it worked as expected: for 1, 2, 3, 4 running processes it used 1, 2, 3, 4
cores, and more processes then led to equal distribution.
The day before yesterday I made a complete update, and I noticed something about
a "kernel optimised for laptops". That made me already worry (what could this mean
other than energy saving and such stuff --- while I need full power), but I
hoped the best. However since since it keeps at least one core idle, apparently
independent of how many processes you are running (that is, long time processes ---
shorter ones apparently get scheduled on the idle processor). And actually most
of the time 2 cores (from the four) are kept idle, so that for example 8 long-time
processes are cramped on 2 cores!
Another thing which stopped working after the update is the temperate measurement
of "Bubblemoon": In order for it to work, before I had to restart it several times,
with several settings, but at some time it started working. Now the temperature
measurements are just complete nonsense. Could there be a relation?
Hope somebody can help. I can not imagine that Linux can't handle a quadcore
processor!
Thanks for your attention.
Oliver
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