Rik van Riel <[EMAIL PROTECTED]> writes:
> > Second test: kernel compile make -j32 (empirically this puts the
> > VM under load, but not excessively!)
> >
> > 2.2.17 -> make -j32 392.49s user 47.87s system 168% cpu 4:21.13 total
> > 2.4.0 -> make -j32 389.59s user 31.29s system 182% cpu 3:50.24 total
> >
> > Now, is this great news or what, 2.4.0 is definitely faster.
>
> One problem is that these tasks may be waiting on kswapd when
> kswapd might not get scheduled in on time. On the one hand this
> will mean lower load and less thrashing, on the other hand it
> means more IO wait.
>
Hm, if all tasks are waiting for memory, what is stopping kswapd to
run? :)
--
Zlatko
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