Subject: Re: siop(4) and tagged queuing
To: Matthew Jacob <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 10/23/2000 19:07:13
On Mon, Oct 23, 2000 at 09:58:39AM -0700, Matthew Jacob wrote:
> Almost all of your drives will do this- what you need to do is bump
> SDOUTSTANDING up above 100 or so in sd.c.
Well, OK, I'll try this on older drives, with a small cache.
BTW, is SDOUTSTANDING really used ? It seems that all drivers doing tagged
queueing override this by the number of tags they can do (siop does this) ?
> You won't see the benefits of tagged queiing on bonnie- you need a
> multithreaded test that tests multiple parts of the drive.
Ok, I though the seekers would do this.
Any benchmark to recommend ?
Manuel Bouyer, LIP6, Universite Paris VI. Manuel.Bouyer@lip6.fr