Re: FW: Filesystem gets a huge performance boost

[Doug Barton]

Matt Dillon wrote:

> If directories are spread all over the disk, caching
>     is non-optimal.  But if they are relatively close to each other then
>     both our VM cache (if vfs.vmiodirenable is set to 1) and the hard
>     drive's internal cache become extremely effective. 

        I notice that this option is off by default. Can you give a general idea
of when it should be enabled, when it should be disabled, and what bad
things might result with it on? 

Thanks,

Doug
-- 
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