From: keith.busch@intel.com (Keith Busch)
Subject: [PATCH V2] nvme-pci: assign separate irq vectors for adminq and ioq0
Date: Fri, 9 Mar 2018 10:24:45 -0700 [thread overview]
Message-ID: <20180309172445.GC14765@localhost.localdomain> (raw)
In-Reply-To: <20180308074220.GC15748@lst.de>
On Thu, Mar 08, 2018@08:42:20AM +0100, Christoph Hellwig wrote:
>
> So I suspect we'll need to go with a patch like this, just with a way
> better changelog.
I have to agree this is required for that use case. I'll run some
quick tests and propose an alternate changelog.
Longer term, the current way we're including offline present cpus either
(a) has the driver allocate resources it can't use or (b) spreads the
ones it can use thinner than they need to be. Why don't we rerun the
irq spread under a hot cpu notifier for only online CPUs?
WARNING: multiple messages have this Message-ID (diff)
From: Keith Busch <keith.busch@intel.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>,
Jianchao Wang <jianchao.w.wang@oracle.com>,
axboe@fb.com, sagi@grimberg.me, linux-kernel@vger.kernel.org,
linux-nvme@lists.infradead.org
Subject: Re: [PATCH V2] nvme-pci: assign separate irq vectors for adminq and ioq0
Date: Fri, 9 Mar 2018 10:24:45 -0700 [thread overview]
Message-ID: <20180309172445.GC14765@localhost.localdomain> (raw)
In-Reply-To: <20180308074220.GC15748@lst.de>
On Thu, Mar 08, 2018 at 08:42:20AM +0100, Christoph Hellwig wrote:
>
> So I suspect we'll need to go with a patch like this, just with a way
> better changelog.
I have to agree this is required for that use case. I'll run some
quick tests and propose an alternate changelog.
Longer term, the current way we're including offline present cpus either
(a) has the driver allocate resources it can't use or (b) spreads the
ones it can use thinner than they need to be. Why don't we rerun the
irq spread under a hot cpu notifier for only online CPUs?
next prev parent reply other threads:[~2018-03-09 17:24 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 15:48 [PATCH V2] nvme-pci: assign separate irq vectors for adminq and ioq0 Jianchao Wang
2018-02-28 15:48 ` Jianchao Wang
2018-02-28 15:59 ` Andy Shevchenko
2018-02-28 15:59 ` Andy Shevchenko
2018-03-02 3:06 ` jianchao.wang
2018-03-02 3:06 ` jianchao.wang
2018-03-12 18:59 ` Keith Busch
2018-03-12 18:59 ` Keith Busch
2018-03-13 1:47 ` jianchao.wang
2018-03-13 1:47 ` jianchao.wang
2018-02-28 16:47 ` Christoph Hellwig
2018-02-28 16:47 ` Christoph Hellwig
2018-03-01 9:28 ` Sagi Grimberg
2018-03-01 9:28 ` Sagi Grimberg
2018-03-01 10:05 ` jianchao.wang
2018-03-01 10:05 ` jianchao.wang
2018-03-01 15:15 ` Keith Busch
2018-03-01 15:15 ` Keith Busch
2018-03-02 3:11 ` jianchao.wang
2018-03-02 3:11 ` jianchao.wang
2018-03-01 15:03 ` Ming Lei
2018-03-01 15:03 ` Ming Lei
2018-03-01 16:10 ` Keith Busch
2018-03-01 16:10 ` Keith Busch
2018-03-08 7:42 ` Christoph Hellwig
2018-03-08 7:42 ` Christoph Hellwig
2018-03-09 17:24 ` Keith Busch [this message]
2018-03-09 17:24 ` Keith Busch
2018-03-12 9:09 ` Ming Lei
2018-03-12 9:09 ` Ming Lei
2018-10-08 5:05 ` nvme-pci: number of queues off by one Prasun Ratn
2018-10-08 5:59 ` Dongli Zhang
2018-10-08 5:59 ` Dongli Zhang
2018-10-08 6:58 ` Dongli Zhang
2018-10-08 6:58 ` Dongli Zhang
2018-10-08 14:54 ` Keith Busch
2018-10-08 14:54 ` Keith Busch
2018-10-08 10:19 ` Ming Lei
2018-10-08 10:19 ` Ming Lei
2018-03-02 3:18 ` [PATCH V2] nvme-pci: assign separate irq vectors for adminq and ioq0 jianchao.wang
2018-03-02 3:18 ` jianchao.wang
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