2.2.7 fixes Apache problem? (Was: Re: 2.2.5 optimizations for web

Dan Kegel (dank@alumni.caltech.edu)
Thu, 06 May 1999 08:23:21 +0000


Cacophonix Gaul <cacophonix@yahoo.com> wrote:
> I'd like some help with optimizing linux (and apache)
> for ... specweb96... I expect to
> see 10K-20K simultaneous active connections.

A few days later, he submitted an Apache bug report,
http://bugs.apache.org/index/full/4268, saying:

> I'm running some specweb tests on apache, and with the specific config file
> from the distribution, performance drastically drops after reaching
> high loads - and remains poor even after the specweb tests stop.

This happened on kernel 2.2.5 with Apache 1.3.4 and 1.3.6.

Fast forward two weeks to the present. He now reports:
> The mystery continues. I got round to trying out 1.3.6 again this evening,
> this time on 2.2.7. I did _not_ see the performance drop off. Just to verify,
> I rechecked on the stock 2.2.5 kernel, and the drop off is there.
>
> So _something_ has been fixed between 2.2.5 and 2.2.7 that has made this problem
> go away. I'll keep plugging away as I get spare time to see if I can get the
> problem to occur.

Makes one want to repeat Mindcraft's Apache benchmark with 2.2.7,
doesn't it?
- Dan

http://www.kegel.com/mindcraft_redux.html

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