Re: [patch/rfc/rft] sd: allocate request_queue on device's local numa node

2012-10-23 Thread Jens Axboe
On 2012-10-23 19:42, Bart Van Assche wrote: > On 10/23/12 18:52, Jeff Moyer wrote: >> Bart Van Assche writes: >>> Please keep in mind that a >>> single PCIe bus may have a minimal distance to more than one NUMA >>> node. See e.g. the diagram at the top of page 8 in >>> http://bizsupport1.austin.hp

Re: [patch/rfc/rft] sd: allocate request_queue on device's local numa node

2012-10-23 Thread Bart Van Assche
On 10/23/12 18:52, Jeff Moyer wrote: Bart Van Assche writes: Please keep in mind that a single PCIe bus may have a minimal distance to more than one NUMA node. See e.g. the diagram at the top of page 8 in http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c03261871/c03261871.pdf for

Re: [patch/rfc/rft] sd: allocate request_queue on device's local numa node

2012-10-23 Thread Jeff Moyer
Bart Van Assche writes: > On 10/22/12 21:01, Jeff Moyer wrote: >> All of the infrastructure is available to allocate a request_queue on a >> particular numa node, but it isn't being utilized at all. Wire up the >> sd driver to allocate the request_queue on the HBA's local numa node. >> >> This i

Re: [patch/rfc/rft] sd: allocate request_queue on device's local numa node

2012-10-22 Thread Bart Van Assche
On 10/22/12 21:01, Jeff Moyer wrote: All of the infrastructure is available to allocate a request_queue on a particular numa node, but it isn't being utilized at all. Wire up the sd driver to allocate the request_queue on the HBA's local numa node. This is a request for comments and testing (I'

Re: [patch/rfc/rft] sd: allocate request_queue on device's local numa node

2012-10-22 Thread Jens Axboe
On 2012-10-22 21:01, Jeff Moyer wrote: > Hi, > > All of the infrastructure is available to allocate a request_queue on a > particular numa node, but it isn't being utilized at all. Wire up the > sd driver to allocate the request_queue on the HBA's local numa node. > > This is a request for comme

[patch/rfc/rft] sd: allocate request_queue on device's local numa node

2012-10-22 Thread Jeff Moyer
Hi, All of the infrastructure is available to allocate a request_queue on a particular numa node, but it isn't being utilized at all. Wire up the sd driver to allocate the request_queue on the HBA's local numa node. This is a request for comments and testing (I've built and booted it, nothing mo