On 05/03/2011 11:02 AM, Mark Lord wrote:
On 11-05-02 02:40 PM, Jeff Moyer wrote:
..
Given the highly parallel nature of these parts, I wouldn't be surprised
if the ahci queue depth of 31 is one of the main bottlenecks. Can you
think of a way to extend the ahci driver in this manner to accommodate
devices like this one?
..
I imagine that another performance drain might be libata's lack of
support for host controller queues --> a hardware queuing layer that
exists between the host and the drive's own queuing mechanism.
What do you feel libata lacks, in this area?
AHCI has a host controller queue that it actively manages, and we ship
off requests to that queue ASAP.
Jeff
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
