Should I increase vfs.read_max

[Andrew P.]

On 10/15/05, Deepak Naidu <deepak_nai at yahoo.com> wrote:
> 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.
>
> Have any one tried or is it recommended.
>
> Also, how do I enable hyperthearding, does it improve
> performance...
>
> Link:
> http://www.mail-archive.com/freebsd-performance@freebsd.org/msg00144.html
>
> Cheers,
> Deepak Naidu
>
>
>
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>

Think about upgrading to 6.0-RC1, its disk performance
is great.

Hyperthreading will probably bring you more problems,
than performance. If you don't run very intensive
virus scanning, you don't need it.