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From Martin Kraemer <Martin.Krae...@Fujitsu-Siemens.com>
Subject Re: [2.0] lstat's in spite of AllowOverride None
Date Wed, 07 Nov 2001 16:23:54 GMT
On Wed, Nov 07, 2001 at 09:31:03AM -0600, William A. Rowe, Jr. wrote:
> > Yep, of course. Also, the SHMHT (shared memory hash table) might help us
> > avoid redundant l?stat()s overall.
> 
> I'm wondering what the buy will be compared with OS caching?  I'm certain we will
> see significantly different improvements depending on the underlying kernel cache.

Right. "Current modern OS's" aren't always as optimized as they could be
(someone measured 1000 cps before the forward walk change against around
330 cps after this change, on win2k). And a system call always means
(on unix, at least) much higher overhead than a function call.

  Martin
-- 
<Martin.Kraemer@Fujitsu-Siemens.com>         |     Fujitsu Siemens
Fon: +49-89-636-46021, FAX: +49-89-636-47655 | 81730  Munich,  Germany

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