Blogbench RAID benchmarks

Francois Tigeot ftigeot at
Mon Jul 11 04:44:19 PDT 2011

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

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