On Fri, Mar 4, 2011 at 11:39 AM, Dan Harris <fbsd@drivefaster.net> wrote:
> Just another anecdote, I found that the deadline scheduler performed the
> best for me. I don't have the benchmarks anymore but deadline vs cfq was
> dramatically faster for my tests. I posted this to the list years ago and
> others announced similar experiences. Noop was a close 2nd to deadline.
This reflects the results I get with a battery backed caching RAID
controller as well, both Areca and LSI. Noop seemed to scale a little
bit better for me than deadline with larger loads, but they were
pretty much within a few % of each other either way. CFQ was also
much slower for us.