On Wed, Feb 10, 2016 at 08:47:15PM +0100, Markus Trippelsdorf wrote:
> On 2016.02.10 at 20:34 +0100, Andreas Herrmann wrote:
> > On Tue, Feb 09, 2016 at 06:41:56PM +0100, Markus Trippelsdorf wrote:
> > > > Recently Johannes sent a patch to enable scsi-mq per driver, see
> > > >
On 2016.02.10 at 20:34 +0100, Andreas Herrmann wrote:
> On Tue, Feb 09, 2016 at 06:41:56PM +0100, Markus Trippelsdorf wrote:
> > > Recently Johannes sent a patch to enable scsi-mq per driver, see
> > > http://marc.info/?l=linux-scsi=145347009631192=2
> > >
> > > Probably that is a good solution
On Tue, Feb 09, 2016 at 06:41:56PM +0100, Markus Trippelsdorf wrote:
> On 2016.02.09 at 18:12 +0100, Andreas Herrmann wrote:
> > [CC-ing linux-block and linux-scsi and adding some comments]
> >
> > On Mon, Feb 01, 2016 at 11:43:40PM +0100, Andreas Herrmann wrote:
> > > This introduces a new
On 2016.02.10 at 20:34 +0100, Andreas Herrmann wrote:
> On Tue, Feb 09, 2016 at 06:41:56PM +0100, Markus Trippelsdorf wrote:
> > > Recently Johannes sent a patch to enable scsi-mq per driver, see
> > > http://marc.info/?l=linux-scsi=145347009631192=2
> > >
> > > Probably that is a good solution
On Tue, Feb 09, 2016 at 06:41:56PM +0100, Markus Trippelsdorf wrote:
> On 2016.02.09 at 18:12 +0100, Andreas Herrmann wrote:
> > [CC-ing linux-block and linux-scsi and adding some comments]
> >
> > On Mon, Feb 01, 2016 at 11:43:40PM +0100, Andreas Herrmann wrote:
> > > This introduces a new
On Wed, Feb 10, 2016 at 08:47:15PM +0100, Markus Trippelsdorf wrote:
> On 2016.02.10 at 20:34 +0100, Andreas Herrmann wrote:
> > On Tue, Feb 09, 2016 at 06:41:56PM +0100, Markus Trippelsdorf wrote:
> > > > Recently Johannes sent a patch to enable scsi-mq per driver, see
> > > >
On 2016.02.09 at 18:12 +0100, Andreas Herrmann wrote:
> [CC-ing linux-block and linux-scsi and adding some comments]
>
> On Mon, Feb 01, 2016 at 11:43:40PM +0100, Andreas Herrmann wrote:
> > This introduces a new blk_mq hw attribute time_slice_us which allows
> > to specify a time slice in usecs.
[CC-ing linux-block and linux-scsi and adding some comments]
On Mon, Feb 01, 2016 at 11:43:40PM +0100, Andreas Herrmann wrote:
> This introduces a new blk_mq hw attribute time_slice_us which allows
> to specify a time slice in usecs.
>
> Default value is 0 and implies no modification to blk-mq
[CC-ing linux-block and linux-scsi and adding some comments]
On Mon, Feb 01, 2016 at 11:43:40PM +0100, Andreas Herrmann wrote:
> This introduces a new blk_mq hw attribute time_slice_us which allows
> to specify a time slice in usecs.
>
> Default value is 0 and implies no modification to blk-mq
On 2016.02.09 at 18:12 +0100, Andreas Herrmann wrote:
> [CC-ing linux-block and linux-scsi and adding some comments]
>
> On Mon, Feb 01, 2016 at 11:43:40PM +0100, Andreas Herrmann wrote:
> > This introduces a new blk_mq hw attribute time_slice_us which allows
> > to specify a time slice in usecs.
Following benchmark results for the patch using fio.
- kernel version 4.5.0-rc2-0001 (ie. with time-slice patch)
- Intel Core i7-3770S CPU @ 3.10GHz system, 4 cores, 8 threads/CPUs
- fio version as of 2.2.9-37-g0e1c4
- results were gathered iterating using rw and numjobs parameter, e.g.:
This introduces a new blk_mq hw attribute time_slice_us which allows
to specify a time slice in usecs.
Default value is 0 and implies no modification to blk-mq behaviour.
A positive value changes blk-mq to service only one software queue
within this time slice until it expires or the software
This introduces a new blk_mq hw attribute time_slice_us which allows
to specify a time slice in usecs.
Default value is 0 and implies no modification to blk-mq behaviour.
A positive value changes blk-mq to service only one software queue
within this time slice until it expires or the software
Following benchmark results for the patch using fio.
- kernel version 4.5.0-rc2-0001 (ie. with time-slice patch)
- Intel Core i7-3770S CPU @ 3.10GHz system, 4 cores, 8 threads/CPUs
- fio version as of 2.2.9-37-g0e1c4
- results were gathered iterating using rw and numjobs parameter, e.g.:
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