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Re: NetBSD disk performance on VirtualBox

On Mon, Mar 19, 2018 at 12:06:44PM +0000, Sad Clouds wrote:
> Hello, which virtual controller do you use in VirtualBox and do you have
> "Use Host I/O Cache" selected on that controller? If yes, then you need to
> disable it before running I/O tests, otherwise it caches loads of data in
> RAM instead of sending it to disk.

I am not sure it makes sense to benchmark the host IO performance in this
context ;-)

However: I have the default settings, PIIX4. This is netbsd-8 GENERIC,
as of a few days ago.

Turning off the host IO cache makes no measurable difference for me.


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