Hi,
I agree with pretty much everything you said, although things will
obviously differ from environment to environment and even run to run
number of files, file size, app activity, number of apps, paging, and so
on. ) I do wonder though, why you think caching would be more reliable
particularly when paging is brought into the picture. )
Joe Sam
-----Original Message-----
From: Eric Fialkowski <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Tuesday, May 25, 1999 4:02 PM
Subject: FW: file cache
>
>Martin,
>
>I have noticed a better than expected decrease (10-15%) in >execution time
on a Sun host running JRun.
>
>In Linux, any caching that you're seeing is very limited and wouldn't
>be consistent across multiple calls to a servlet, over a long period of
>time, on a busy server. You're much better of not worrying about the
>file i/o intricacies as the o/s and filesystem may dump your file from
>the cache at any time.
>
>The method that you're using, by loading the file into your servlets
>data address space should, overtime, see much better performance
>and be more reliable. If you for some reason migrate to another O/S
>you won't be guaranteed any of these filesystem behaviors. If you're
>seeing little or no performance increase, maybe its b/c Linux is such
>an efficient O/S. ;-)
>
>Regards,
>
>Brian
>
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