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From: Christoph Hellwig <hch@lst.de>
To: Keith Busch <kbusch@kernel.org>
Cc: sagi@grimberg.me, bigeasy@linutronix.de,
	linux-nvme@lists.infradead.org, ming.lei@redhat.com,
	tglx@linutronix.de, hch@lst.de
Subject: Re: [PATCHv3 3/4] nvme/pci: Remove use_threaded_interrupts
Date: Thu, 12 Dec 2019 10:14:33 +0100	[thread overview]
Message-ID: <20191212091433.GD2399@lst.de> (raw)
In-Reply-To: <20191209175622.1964-4-kbusch@kernel.org>

On Tue, Dec 10, 2019 at 02:56:21AM +0900, Keith Busch wrote:
> The nvme threaded interrupt handling provides quick completions for
> latency sensitive workloads, and threaded handlers for more IOPS intensive
> ones. Remove the use_threaded_interrupts nvme module parameter since
> leaving it disabled should not be providing a benefit.

I think we need some careful benchmarking and numbers to justify the
switch.

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  reply	other threads:[~2019-12-12 10:15 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-09 17:56 [PATCHv3 0/4] nvme pci interrupt handling improvements Keith Busch
2019-12-09 17:56 ` [PATCHv3 1/4] nvme/pci: Disable interrupts for threaded handler Keith Busch
2019-12-10 15:12   ` Daniel Wagner
2019-12-10 15:28     ` Sebastian Andrzej Siewior
2019-12-10 15:54       ` Keith Busch
2019-12-10 16:44         ` Daniel Wagner
2019-12-10 16:57           ` Keith Busch
2019-12-10 17:11             ` Daniel Wagner
2019-12-12  9:09   ` Christoph Hellwig
2019-12-12 15:53     ` Keith Busch
2019-12-09 17:56 ` [PATCHv3 2/4] nvme/pci: Complete commands from primary handler Keith Busch
2019-12-10 20:00   ` Sagi Grimberg
2019-12-10 20:25     ` Keith Busch
2019-12-10 21:14       ` Sagi Grimberg
2019-12-11 17:35         ` Keith Busch
2019-12-12  0:40           ` Sagi Grimberg
2019-12-12  1:02             ` Keith Busch
2019-12-12 22:55               ` Ming Lei
2019-12-12 23:30                 ` Keith Busch
2019-12-13  0:52                   ` Ming Lei
2019-12-12  9:14   ` Christoph Hellwig
2019-12-09 17:56 ` [PATCHv3 3/4] nvme/pci: Remove use_threaded_interrupts Keith Busch
2019-12-12  9:14   ` Christoph Hellwig [this message]
2019-12-12 15:45     ` Keith Busch
2019-12-18  7:29     ` Ming Lei
2019-12-18 15:50       ` Keith Busch
2019-12-19  1:10         ` Ming Lei
2019-12-09 17:56 ` [PATCHv3 4/4] nvme/pci: Poll threaded completions Keith Busch
2019-12-10 17:43   ` Daniel Wagner

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