Messages in this thread | | | Date | Wed, 10 Nov 1999 16:18:07 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: PATCH 2.3.26: kmalloc GFP_ZERO |
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On Wed, 10 Nov 1999, Pavel Machek wrote:
>So you never do any task which is partly-cpu-bound and >partly-io-bound? That tasks are pretty common in real life (starting
When you are I/O bound the page-fault rate is very very low and IMHO you are not going to see any sensitive improvement. clear page become a bottleneck only when the page fault rate is high.
Actually on x86 doing it in software would be a bad idea anyway as currently there's no way to avoid cache pollution (and I don't have KNI here). perloading cachelines at page fault time is the best thing to do for x86 right now.
>[..] Not everyone has enough ram >to to run make -j 5!
I understand as I don't use -j5 either ;). I tune -j to make sure all CPUs are busy all the time and nothing more.
Andrea
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