TRIM clustering

Pawel Jakub Dawidek pjd at
Sun May 1 13:38:14 UTC 2011

On Sun, May 01, 2011 at 12:06:56AM +0200, Alexander Leidinger wrote:
> On Sat, 30 Apr 2011 00:28:31 -0700 Jeremy Chadwick
> <freebsd at> wrote:
> > On Sat, Apr 30, 2011 at 09:54:02AM +0300, Alexander Motin wrote:
> > Other notes: TRIM needs to be supported on swap as well, and in my
> > opinion this is just as important as it being in UFS.  I'm not sure
> > how one would implement that.
> This brings up the question if a ZFS cache (where the contents do not
> survive a reboot) is completely TRIMmed before used (and normally
> trimmed during use)...

It is not trimmed at all.

Pawel Jakub Dawidek             
FreeBSD committer               
Am I Evil? Yes, I Am!           
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