VM sysctl tuning

[Stephen Sanders]

Does any know if there is any advantage to tuning sysctl's for the VM
when one has an insane amount of memory in their machine?

We've a system with 16GB of RAM that we are attempting to optimize the
system's memory copy and disk write performance.

Thanks.


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[István-3]

I guess you can find some useful information here:
http://wiki.freebsd.org/ZFSTuningGuide

Please note the difference between 7.2 and all the previous releases.

"FreeBSD 7.2+ has improved kernel memory allocation strategy and no tuning
may be necessary on systems with more than 2 GB of RAM. "


Also wort play a bit with kern.maxvnodes as the document says.
Not to forget:

http://www.freebsd.org/doc/en/books/arch-handbook/vm-tuning.html

Regards,
Istvan

On Tue, May 5, 2009 at 4:20 PM, Stephen Sanders <ssanders@...> wrote:

> Does any know if there is any advantage to tuning sysctl's for the VM
> when one has an insane amount of memory in their machine?
>
> We've a system with 16GB of RAM that we are attempting to optimize the
> system's memory copy and disk write performance.
>
> Thanks.
>
>
> _______________________________________________
> freebsd-performance@... mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-performance
> To unsubscribe, send any mail to "
> freebsd-performance-unsubscribe@..."
>

--
the sun shines for all
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