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From: Paolo Valente <paolo.valente@linaro.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	ulf.hansson@linaro.org, linus.walleij@linaro.org,
	bfq-iosched@googlegroups.com, oleksandr@natalenko.name,
	bottura.nicola95@gmail.com, srivatsa@csail.mit.edu,
	Paolo Valente <paolo.valente@linaro.org>
Subject: [PATCH BUGFIX IMPROVEMENT V3 0/1] block, bfq: eliminate latency regression with fast drives
Date: Thu, 18 Jul 2019 09:08:51 +0200	[thread overview]
Message-ID: <20190718070852.34568-1-paolo.valente@linaro.org> (raw)

[V3 that mentions the fixed/improved commit]

Hi Jens,
I've spotted a regression on a fast SSD: a loss of I/O-latency control
with interactive tasks (such as the application start up I usually
test). Details in the commit.

I do hope that, after proper review, this commit makes it for 5.3.

Thanks,
Paolo

Paolo Valente (1):
  block, bfq: check also in-flight I/O in dispatch plugging

 block/bfq-iosched.c | 67 +++++++++++++++++++++++++++++----------------
 1 file changed, 43 insertions(+), 24 deletions(-)

--
2.20.1

             reply	other threads:[~2019-07-18  7:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-18  7:08 Paolo Valente [this message]
2019-07-18  7:08 ` [PATCH BUGFIX IMPROVEMENT V3 1/1] block, bfq: check also in-flight I/O in dispatch plugging Paolo Valente
2019-07-18 13:22   ` Jens Axboe

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