In the last episode (Oct 15), Deepak Naidu said:
> Hi,
> I am running FreeBSD 5.4 on SunFire v20 on single
> hard disk 73 GB...
>
> I googled down some links regarding increasing IO
> performance. It said increase vfs.read_max from 8 to
> 16. I have done that, but cant justify any
> improvement, as I am running mailserver(spam checker).
> Should I revert to 8 or use 16.
Raising vfs.read_max is most helpful when you are reading large
sequential files from RAID arrays. On a single-disk system, all it
does is allow sequential readers to starve random readers.
--
Dan Nelson
[EMAIL PROTECTED]
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