Re: [RFC PATCH 3/5] libsas: dynamic queue depth

Christoph Hellwig
2011-09-20T22:18:09Z

On Tue, Sep 20, 2011 at 03:10:46PM -0700, Dan Williams wrote:
> The queue-depth for libsas-attached devices initializes to 32 and can
> only be increased manually via sysfs to a max of 64, while mpt2sas
> attached devices initialize to 254 and dynamically float via the
> midlayer ->change_queue_depth interface.
>
> No performance regression was observed with this change on the isci
> driver.

Looks reasonable to me.