From: axboe@kernel.dk (Jens Axboe)
Subject: [PATCH v3] blk: optimization for classic polling
Date: Tue, 13 Feb 2018 09:12:18 -0700 [thread overview]
Message-ID: <f797a075-4ef2-410f-4eda-fa70d426d58f@kernel.dk> (raw)
In-Reply-To: <1518536892-2051-1-git-send-email-nj.shetty@samsung.com>
On 2/13/18 8:48 AM, Nitesh Shetty wrote:
> This removes the dependency on interrupts to wake up task. Set task
> state as TASK_RUNNING, if need_resched() returns true,
> while polling for IO completion.
> Earlier, polling task used to sleep, relying on interrupt to wake it up.
> This made some IO take very long when interrupt-coalescing is enabled in
> NVMe.
Thanks, applied.
--
Jens Axboe
next prev parent reply other threads:[~2018-02-13 16:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20180208143655epcas1p444bf34705526b7839a5a135f82761aad@epcas1p4.samsung.com>
2018-02-08 14:37 ` [PATCH] blk: optimization for classic polling Nitesh Shetty
2018-02-08 15:27 ` Keith Busch
2018-02-08 16:03 ` Sagi Grimberg
2018-02-12 15:50 ` Bart Van Assche
2018-02-13 15:48 ` [PATCH v3] " Nitesh Shetty
2018-02-13 16:12 ` Jens Axboe [this message]
2018-02-13 18:56 ` [PATCH v2 RESENT] " Nitesh Shetty
2018-02-13 14:42 ` Jens Axboe
2018-02-20 13:21 ` [PATCH] " Peter Zijlstra
2018-02-20 16:27 ` Keith Busch
2018-02-20 22:37 ` Jens Axboe
2018-02-21 8:32 ` Peter Zijlstra
2018-10-10 18:52 ` Florian Fainelli
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