FreeBSD, SSD's and partition alignment

[Koen Smits]

I have not tested this to an extent that I can be sure this is the way it
works. Sorry.

On Thu, Jan 8, 2009 at 14:25, Peter Schuller <peter.schuller at infidyne.com>wrote:

> > Note that even the Intel X25-M series seem to slow down in random write
> > speed when the complete disk is filled and there are no cells left that
> the
> > controller knows are free. Most benchmarks out there are run on an empty
> > Intel SSD. When you rerun that test several times, it'll slowly settle on
> a
> > much lower random write speed.
>
> My understanding is that the performance drop should only come from
> *sustained* high write iops; i.e., when you effectively exhaust the
> free space necessary to perform the writes sequentially but
> temporarily. But on the other hand if you are only bursting, I was
> under the impression these guys did background re-writing such that no
> permanent performance drop need be expected.
>
> Is this not the case for the X25-M or others?
>
> --
> / Peter Schuller
>
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