On 02/23/14 21:10, James Bottomley wrote:
Right ... my ideal here if we can achieve it would be lockless threaded
models, where we could make guarantees like single thread of execution
per command, so all command state could be lockless.
This approach sounds interesting but could be
On Wed, 2014-02-05 at 04:39 -0800, Christoph Hellwig wrote:
We've run into many issues where the SCSI layer simply does not scale to
keep up with today's hardware, be that in simple single-thread IOPs, or
in lock contention when using multiple LUNs or targets under a single
SCSI host. This
On Sun, Feb 23, 2014 at 02:10:18PM -0600, James Bottomley wrote:
If we can do this, that would be great, because it cuts down on the
maintenance burden for all of us and gives some benefits at least to
non-MQ hardware.
So far this seems to work out great, and I think we will be able to
stick
We've run into many issues where the SCSI layer simply does not scale to
keep up with today's hardware, be that in simple single-thread IOPs, or
in lock contention when using multiple LUNs or targets under a single
SCSI host. This proposal tries to draw a path how to fix this properly
and avoids
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