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From Justin Erenkrantz <>
Subject Re: [PATCH] mod_disk_cache: speed up read_table
Date Thu, 18 Aug 2005 17:43:45 GMT
--On August 18, 2005 1:34:56 PM -0400 Brian Akins <> 

> The optimizations that Colm is talking about should be helpful everywhere.
> Also, that's why we test to make sure it does "kill us." Also, I don't think
> we "know" it will kill us.

None of the code in mod_disk_cache used buffering before I turned it on.  It 
gave significant speedups in my performance tests by reducing the syscall 
overhead.  I also had identified and fixed some bugs in apr's buffering code 
to go along with these speedups that went out in APR 1.0.1.  So, unless the 
profiles have changed (unlikely), removing buffering is a bad idea.  -- justin

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