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From Greg Ames <>
Subject Re: Apache 2.0.28 memory growth issue.
Date Fri, 11 Jan 2002 18:07:00 GMT
Aaron Bannert wrote:

> Keep in mind that the multithreaded MPMs will by their very nature have
> higher memory requirements than their single-threaded counterparts. I
> regularly see memory usage in the range you've reported. Yesterday
> while running with 500 threads, I can report that httpd was using 23M
> (20M RSS).  If you consider that 500 prefork processes would take on
> the order 500*N, where N is usually 3-5MB, then this is a *significant*
> decrease in memory requirements -- which was one of the major goals of
> the hybrid multiprocess/ multithreaded httpd model.

Good point.  I can see it while worker is getting pounded.  

hmmmn, but what if the traffic dries up completely?  Should we expect memory
usage to shrink back down close to where it started?


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