Messages in this thread | | | Date | Wed, 12 May 1999 22:19:33 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | [RFT] 2.2.8_andrea1 wake-one [Re: Overscheduling DOES happen with high web server load.] |
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On Fri, 7 May 1999, Andrea Arcangeli wrote:
>I'll provide you a patch shortly to try out.
Phillip, could you try it out:
ftp://e-mind.com/pub/andrea/kernel/2.2.8_andrea1.bz2
under heavy web load? (should run fine on alpha too as far as stock-2.2.8 is just fine too)
Note: it has also my wake-one on accept that just address completly the overscheduling problem. But to achieve performances by it you must make sure that _all_ apache tasks are sleeping in accept(2) and not in flock(2)/fcntl(2)/whatever. Maybe you'll need to patch apache to achieve that (I also seen a patch floating on the list, maybe you only need to grap such patch and apply/reverse it over the apache tree).
I would like if you would make comparison with a clean 2.2.8 (or with pre-2.3.1 even if I have not seen it yet).
Andrea Arcangeli
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