From: Tejun Heo <tj@kernel.org>
To: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: len.brown@intel.com, linux-pm@vger.kernel.org,
gregkh@linuxfoundation.org, linux-nvdimm@lists.01.org,
jiangshanlai@gmail.com, linux-kernel@vger.kernel.org,
zwisler@kernel.org, pavel@ucw.cz, rafael@kernel.org,
akpm@linux-foundation.org
Subject: Re: [RFC workqueue/driver-core PATCH 1/5] workqueue: Provide queue_work_near to queue work near a given NUMA node
Date: Wed, 26 Sep 2018 15:09:57 -0700 [thread overview]
Message-ID: <20180926220957.GB270328@devbig004.ftw2.facebook.com> (raw)
In-Reply-To: <9b002bbb-3e6d-9e99-d8f9-36df4306093e@linux.intel.com>
Hello,
On Wed, Sep 26, 2018 at 03:05:17PM -0700, Alexander Duyck wrote:
> I am using unbound workqueues. However there isn't an interface that
> exposes the NUMA bits of them directly. All I am doing with this
> patch is adding "queue_work_near" which takes a NUMA node as an
> argument and then copies the logic of "queue_work_on" with the
> exception that I am doing a check to verify that there is an
> intersection between wq_unbound_cpumask and the cpumask of the node,
> and then passing a CPU from that intersection into "__queue_work".
Can it just take a cpu id and not feed that to __queue_work()? That
looks like a lot of extra logic.
Thanks.
--
tejun
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WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: linux-nvdimm@lists.01.org, gregkh@linuxfoundation.org,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, len.brown@intel.com,
dave.jiang@intel.com, rafael@kernel.org,
vishal.l.verma@intel.com, jiangshanlai@gmail.com, pavel@ucw.cz,
zwisler@kernel.org, dan.j.williams@intel.com
Subject: Re: [RFC workqueue/driver-core PATCH 1/5] workqueue: Provide queue_work_near to queue work near a given NUMA node
Date: Wed, 26 Sep 2018 15:09:57 -0700 [thread overview]
Message-ID: <20180926220957.GB270328@devbig004.ftw2.facebook.com> (raw)
In-Reply-To: <9b002bbb-3e6d-9e99-d8f9-36df4306093e@linux.intel.com>
Hello,
On Wed, Sep 26, 2018 at 03:05:17PM -0700, Alexander Duyck wrote:
> I am using unbound workqueues. However there isn't an interface that
> exposes the NUMA bits of them directly. All I am doing with this
> patch is adding "queue_work_near" which takes a NUMA node as an
> argument and then copies the logic of "queue_work_on" with the
> exception that I am doing a check to verify that there is an
> intersection between wq_unbound_cpumask and the cpumask of the node,
> and then passing a CPU from that intersection into "__queue_work".
Can it just take a cpu id and not feed that to __queue_work()? That
looks like a lot of extra logic.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Alexander Duyck
<alexander.h.duyck-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
jiangshanlai-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
zwisler-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
pavel-+ZI9xUNit7I@public.gmane.org,
rafael-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org
Subject: Re: [RFC workqueue/driver-core PATCH 1/5] workqueue: Provide queue_work_near to queue work near a given NUMA node
Date: Wed, 26 Sep 2018 15:09:57 -0700 [thread overview]
Message-ID: <20180926220957.GB270328@devbig004.ftw2.facebook.com> (raw)
In-Reply-To: <9b002bbb-3e6d-9e99-d8f9-36df4306093e-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Hello,
On Wed, Sep 26, 2018 at 03:05:17PM -0700, Alexander Duyck wrote:
> I am using unbound workqueues. However there isn't an interface that
> exposes the NUMA bits of them directly. All I am doing with this
> patch is adding "queue_work_near" which takes a NUMA node as an
> argument and then copies the logic of "queue_work_on" with the
> exception that I am doing a check to verify that there is an
> intersection between wq_unbound_cpumask and the cpumask of the node,
> and then passing a CPU from that intersection into "__queue_work".
Can it just take a cpu id and not feed that to __queue_work()? That
looks like a lot of extra logic.
Thanks.
--
tejun
next prev parent reply other threads:[~2018-09-26 22:10 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-26 21:51 [RFC workqueue/driver-core PATCH 0/5] Add NUMA aware async_schedule calls Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-26 21:51 ` [RFC workqueue/driver-core PATCH 1/5] workqueue: Provide queue_work_near to queue work near a given NUMA node Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-26 21:53 ` Tejun Heo
2018-09-26 21:53 ` Tejun Heo
2018-09-26 21:53 ` Tejun Heo
2018-09-26 22:05 ` Alexander Duyck
2018-09-26 22:05 ` Alexander Duyck
2018-09-26 22:09 ` Tejun Heo [this message]
2018-09-26 22:09 ` Tejun Heo
2018-09-26 22:09 ` Tejun Heo
2018-09-26 22:19 ` Alexander Duyck
2018-09-26 22:19 ` Alexander Duyck
2018-10-01 16:01 ` Tejun Heo
2018-10-01 16:01 ` Tejun Heo
2018-10-01 16:01 ` Tejun Heo
2018-10-01 21:54 ` Alexander Duyck
2018-10-01 21:54 ` Alexander Duyck
2018-10-01 21:54 ` Alexander Duyck
2018-10-02 17:41 ` Tejun Heo
2018-10-02 17:41 ` Tejun Heo
2018-10-02 17:41 ` Tejun Heo
2018-10-02 18:23 ` Alexander Duyck
2018-10-02 18:23 ` Alexander Duyck
2018-10-02 18:23 ` Alexander Duyck
2018-10-02 18:41 ` Tejun Heo
2018-10-02 18:41 ` Tejun Heo
2018-10-02 18:41 ` Tejun Heo
2018-10-02 20:49 ` Alexander Duyck
2018-10-02 20:49 ` Alexander Duyck
2018-10-02 20:49 ` Alexander Duyck
2018-09-26 21:51 ` [RFC workqueue/driver-core PATCH 2/5] async: Add support for queueing on specific " Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-27 0:31 ` Dan Williams
2018-09-27 0:31 ` Dan Williams
2018-09-27 0:31 ` Dan Williams
2018-09-27 15:16 ` Alexander Duyck
2018-09-27 15:16 ` Alexander Duyck
2018-09-27 15:16 ` Alexander Duyck
2018-09-27 19:48 ` Dan Williams
2018-09-27 19:48 ` Dan Williams
2018-09-27 20:03 ` Alexander Duyck
2018-09-27 20:03 ` Alexander Duyck
2018-09-26 21:51 ` [RFC workqueue/driver-core PATCH 3/5] driver core: Probe devices asynchronously instead of the driver Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-27 0:48 ` Dan Williams
2018-09-27 0:48 ` Dan Williams
2018-09-27 0:48 ` Dan Williams
2018-09-27 15:27 ` Alexander Duyck
2018-09-27 15:27 ` Alexander Duyck
2018-09-27 15:27 ` Alexander Duyck
2018-09-28 2:48 ` Dan Williams
2018-09-28 2:48 ` Dan Williams
2018-09-28 2:48 ` Dan Williams
2018-09-26 21:51 ` [RFC workqueue/driver-core PATCH 4/5] driver core: Use new async_schedule_dev command Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-26 21:51 ` Alexander Duyck
2018-09-28 17:42 ` Dan Williams
2018-09-28 17:42 ` Dan Williams
2018-09-28 17:42 ` Dan Williams
2018-09-26 21:52 ` [RFC workqueue/driver-core PATCH 5/5] nvdimm: Schedule device registration on node local to the device Alexander Duyck
2018-09-26 21:52 ` Alexander Duyck
2018-09-26 21:52 ` Alexander Duyck
2018-09-28 17:46 ` Dan Williams
2018-09-28 17:46 ` Dan Williams
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