8-STABLE Slow Write Speeds on ESXI 4.0

Tue Aug 10 02:25:21 UTC 2010

On Mon, Aug 09, 2010 at 09:11:24AM -0700, Jeremy Chadwick wrote:
> FWIW, Workstation 7.1 is fairly adamant about stating "if you want
> faster disk I/O, pre-allocate the disk space rather than let disk use
> grow dynamically".  I've never tested this however.

Anecdotal, as I have no comparative performance figures to hand, but
under VMware Server 2 on Windows, performance of non pre-allocated disks
is dire and SCSI emulation is better than IDE.

-- 
Adrian Wontroba
Anything hit with a big enough hammer will fall apart.