On Mon, Oct 12, 2015 at 11:41:45AM -0700, Christoph Hellwig wrote:
>
> Hi Ted,
>
> while we have a high level agreement there's still some discussion
> needed. I can prepare a few slides for 10 minute discussion and then
> take it to the hallways with the interested people.
Thanks,
The Tech se
On Mon, Oct 12, 2015 at 12:09:48PM -0400, Theodore Ts'o wrote:
> Hi Christoph,
>
> Do you think this is still an issue that would be worth discsussing at
> the kernel summit as a technical topic? If so, would you be willing
> to be responsible for kicking off the discussion for this topic?
Hi Te
Hi Christoph,
Do you think this is still an issue that would be worth discsussing at
the kernel summit as a technical topic? If so, would you be willing
to be responsible for kicking off the discussion for this topic?
Thanks,
- Ted
On Wed, Jul 15, 2015
B1;2802;0cOn Wed, 15 Jul 2015, Matthew Wilcox wrote:
> On Wed, Jul 15, 2015 at 11:25:55AM -0600, Jens Axboe wrote:
> > On 07/15/2015 11:19 AM, Keith Busch wrote:
> > >On Wed, 15 Jul 2015, Bart Van Assche wrote:
> > >>* With blk-mq and scsi-mq optimal performance can only be achieved if
> > >> the r
On Wed, Jul 15, 2015 at 02:48:00PM -0400, Matthew Wilcox wrote:
> On Wed, Jul 15, 2015 at 11:25:55AM -0600, Jens Axboe wrote:
> > On 07/15/2015 11:19 AM, Keith Busch wrote:
> > >On Wed, 15 Jul 2015, Bart Van Assche wrote:
> > >>* With blk-mq and scsi-mq optimal performance can only be achieved if
>
On Wed, Jul 15, 2015 at 11:25:55AM -0600, Jens Axboe wrote:
> On 07/15/2015 11:19 AM, Keith Busch wrote:
> >On Wed, 15 Jul 2015, Bart Van Assche wrote:
> >>* With blk-mq and scsi-mq optimal performance can only be achieved if
> >> the relationship between MSI-X vector and NUMA node does not change
On 7/15/2015 8:25 PM, Jens Axboe wrote:
On 07/15/2015 11:19 AM, Keith Busch wrote:
On Wed, 15 Jul 2015, Bart Van Assche wrote:
* With blk-mq and scsi-mq optimal performance can only be achieved if
the relationship between MSI-X vector and NUMA node does not change
over time. This is necessary
On 07/15/2015 11:19 AM, Keith Busch wrote:
On Wed, 15 Jul 2015, Bart Van Assche wrote:
* With blk-mq and scsi-mq optimal performance can only be achieved if
the relationship between MSI-X vector and NUMA node does not change
over time. This is necessary to allow a blk-mq/scsi-mq driver to
ens
On Wed, 15 Jul 2015, Bart Van Assche wrote:
* With blk-mq and scsi-mq optimal performance can only be achieved if
the relationship between MSI-X vector and NUMA node does not change
over time. This is necessary to allow a blk-mq/scsi-mq driver to
ensure that interrupts are processed on the sam
On Wed, Jul 15, 2015 at 05:07:08AM -0700, Christoph Hellwig wrote:
> Many years ago we decided to move setting of IRQ to core affnities to
> userspace with the irqbalance daemon.
>
> These days we have systems with lots of MSI-X vector, and we have
> hardware and subsystem support for per-CPU I/O
On 07/15/2015 05:12 AM, Thomas Gleixner wrote:
On Wed, 15 Jul 2015, Christoph Hellwig wrote:
Many years ago we decided to move setting of IRQ to core affnities to
userspace with the irqbalance daemon.
These days we have systems with lots of MSI-X vector, and we have
hardware and subsystem suppo
On 15/07/15 13:07, Christoph Hellwig wrote:
> Many years ago we decided to move setting of IRQ to core affnities to
> userspace with the irqbalance daemon.
>
> These days we have systems with lots of MSI-X vector, and we have
> hardware and subsystem support for per-CPU I/O queues in the block
> l
On Wed, 15 Jul 2015, Christoph Hellwig wrote:
> Many years ago we decided to move setting of IRQ to core affnities to
> userspace with the irqbalance daemon.
>
> These days we have systems with lots of MSI-X vector, and we have
> hardware and subsystem support for per-CPU I/O queues in the block
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