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From Rob Hartill <r...@imdb.com>
Subject Re: ack re: [PATCH] performance improvement
Date Fri, 31 Jan 1997 21:58:58 GMT
On Fri, 31 Jan 1997, Ed Korthof wrote:

> Yes, I realized that. <blush> Well, without that, the patch appears to
> work fine --

did you measure any performance gain ?. Every little helps. Was it too
little to notice though ?

> I'm going to be doing more tests today, since we need to
> improve performance, and this seems one place to start.  Anyway, the
> attached patch has less effective error reporting, but I can't get
> log_printf working w/ this macro, so...

There's certainly scope in some (many?) modules to improve on efficiency
by examining when module entry point are being called unecessarily, well
not 'uneecessarily'  but, the modules are doing pointless work because
they're being called at times when they have nothing worthwhile to contribute
to the request.  You can see an example of that with the patch to
mod_expires that has yet to be committed. mod_browser also repeats itself
multiple times per request under certain circumstances (e.g. with
DirectoryIndex I believe).

Anyone know if mod_log_config (which is now the default) is costing any
extra time ?

Are we going to delay 1.2 even further to take more efficiency patches ?
Who's carrying the 'release manager' ball today ?

rob

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