Messages in this thread | | | Subject | Re: Subtle MM bug | From | Zlatko Calusic <> | Date | 17 Jan 2001 19:53:31 +0100 |
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Rik van Riel <riel@conectiva.com.br> 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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