Re: Blogbench RAID benchmarks

[Francois Tigeot <ftigeot@xxxxxxxxxxxx>]

On Mon, Jul 11, 2011 at 01:14:14PM +0200, Francois Tigeot wrote:
> 
> I've run some disk benchmarks with DragonFly 2.10 and an Areca RAID controller
> during the last few days.

Just to clarify things a bit, the tests were done like this:

  newfs -U /dev/da0 or newfs_hammer -L RAID_VOLUME /dev/da0
  mount /dev/da0 on /mnt
  mkdir /mnt/blogbench
  blogbench -d /mnt/blogbench

The results were taken for one run only, they were not averaged.
Howewer, I repeated many times the tests for the RAID10 and RAID0 cases, and
the numbers were always consistent (7% variation at worst).

No fancy disk scheduler was used. Besides newfs, defaults were used for
all commands.

-- 
Francois Tigeot