Rik van Riel [off-list ref] writes:
quoted
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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