Subject: RAIDframe queuing policies other than FIFO?
To: None <tech-kern@netbsd.org>
From: Blair Sadewitz <blair.sadewitz@gmail.com>
List: tech-kern
Date: 08/13/2007 13:24:22
Has anyone compared the performance of the other RAIDframe queue
strategies?  I'm especially interested in reasons to choose one based
upon different workloads.  There is precious little documentation on
this other than comments in the source and certain academic papers
which are a bit too wide (or narrow) in scope to be of general
usefulness to NetBSD users.

Additionally, would it make sense to choose a bufq strategy in the
kernel based upon the RAIDframe queueing strategy, or vice versa?  For
example, using BUFQ_PRIOCSCAN with RAIDframe's sstf, or using disksort
with cscan?  What about fcfs with sstf?  Inquiring minds want to know!
;)

Regards,

--Blair