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Message-Id: <20190624194042.38747-1-paolo.valente@linaro.org>
Date: Mon, 24 Jun 2019 21:40:35 +0200
From: Paolo Valente <paolo.valente@...aro.org>
To: Jens Axboe <axboe@...nel.dk>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
ulf.hansson@...aro.org, linus.walleij@...aro.org,
bfq-iosched@...glegroups.com, oleksandr@...alenko.name,
bottura.nicola95@...il.com, srivatsa@...il.mit.edu,
Paolo Valente <paolo.valente@...aro.org>
Subject: [PATCH BUGFIX IMPROVEMENT 0/7] boost throughput with synced I/O, reduce latency and fix a bandwidth bug
Hi Jens,
this series, based against for-5.3/block, contains:
1) The improvements to recover the throughput loss reported by
Srivatsa [1] (first five patches)
2) A preemption improvement to reduce I/O latency
3) A fix of a subtle bug causing loss of control over I/O bandwidths
Thanks,
Paolo
[1] https://lkml.org/lkml/2019/5/17/755
Paolo Valente (7):
block, bfq: reset inject limit when think-time state changes
block, bfq: fix rq_in_driver check in bfq_update_inject_limit
block, bfq: update base request service times when possible
block, bfq: bring forward seek&think time update
block, bfq: detect wakers and unconditionally inject their I/O
block, bfq: preempt lower-weight or lower-priority queues
block, bfq: re-schedule empty queues if they deserve I/O plugging
block/bfq-iosched.c | 952 ++++++++++++++++++++++++++++++--------------
block/bfq-iosched.h | 25 +-
2 files changed, 686 insertions(+), 291 deletions(-)
--
2.20.1
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