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From Remy Maucherat <>
Subject Re: [5.5] Todo list
Date Tue, 05 Oct 2004 11:52:46 GMT
Tim Funk wrote:

> Just an fyi, At one time, I was thinking that AccessLogValve was bad 
> for performance. But I think it has no effect unless you are maxed out 
> in processors.
> The AccessLog writing only occurs *after* the response has been sent 
> to the client and the request is essentially done. I think if there is 
> a performance issue - it is OS/filesystem specific. We pounded some 
> HPUX boxes with and without access logs turned on. As long as we did 
> not run out of processors, we didn't see any performance differences.
> It might be of interest to parse and decode the pattern at set time 
> for AccessLogValve (like the ExtendedVersion does) to prevent a lot of 
> extra string comparisons. (If the user chooses a custom pattern) But 
> I'm indifferent because of the results I posted above.
> On a stressed system, this might still be a good thing todo.
If I actually do anything, I'd do it in a separate valve class for now 
(so I won't touch the current valve).


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