linux-kernel - [PATCH BUGFIX IMPROVEMENT V3 0/9] lock, bfq: fix bugs, reduce exec time and boost performance

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Date:   Tue, 12 Mar 2019 09:59:26 +0100
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,
        broonie@...nel.org, bfq-iosched@...glegroups.com,
        oleksandr@...alenko.name, fra.fra.800@...il.com,
        alessio.masola@...il.com, holger@...lied-asynchrony.com,
        Paolo Valente <paolo.valente@...aro.org>
Subject: [PATCH BUGFIX IMPROVEMENT V3 0/9] lock, bfq: fix bugs, reduce exec time and boost performance

Hi,
this is the v3 of the series
https://lkml.org/lkml/2019/3/10/138
that fixes some bug affecting performance, reduces execution time a
little bit, and boosts throughput and responsiveness.

The difference w.r.t. v2 are new fixes to the patch "block, bfq: print
SHARED instead of pid for shared queues in logs", after patient checks
and suggestions by Holger and Oleksandr.

Thanks,
Paolo

Francesco Pollicino (2):
  block, bfq: print SHARED instead of pid for shared queues in logs
  block, bfq: save & resume weight on a queue merge/split

Paolo Valente (7):
  block, bfq: increase idling for weight-raised queues
  block, bfq: do not idle for lowest-weight queues
  block, bfq: tune service injection basing on request service times
  block, bfq: do not merge queues on flash storage with queueing
  block, bfq: do not tag totally seeky queues as soft rt
  block, bfq: always protect newly-created queues from existing active
    queues
  doc, block, bfq: add information on bfq execution time

 Documentation/block/bfq-iosched.txt |  29 +-
 block/bfq-cgroup.c                  |   3 +-
 block/bfq-iosched.c                 | 786 +++++++++++++++++++++++-----
 block/bfq-iosched.h                 |  92 ++--
 block/bfq-wf2q.c                    |   2 +-
 5 files changed, 729 insertions(+), 183 deletions(-)

--
2.20.1