From: Ed Tsai <ed.tsai@mediatek.com>
To: <axboe@kernel.dk>
Cc: <linux-block@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <martin.petersen@oracle.com>,
<bvanassche@acm.org>, <stanley.chu@mediatek.com>,
<peter.wang@mediatek.com>, <chun-hung.wu@mediatek.com>,
<alice.chao@mediatek.com>, <powen.kao@mediatek.com>,
<naomi.chu@mediatek.com>, <wsd_upstream@mediatek.com>,
Ed Tsai <ed.tsai@mediatek.com>
Subject: [PATCH 0/2] block: improve the share tag set performance
Date: Tue, 9 May 2023 14:52:28 +0800 [thread overview]
Message-ID: <20230509065230.32552-1-ed.tsai@mediatek.com> (raw)
The tag allocation is limited by the number of active queues and a
queue is marked as inactive by the queue timeout worker after up to 30Hz
by default.
UFS devices have multiple logical units, and they can limit the depth of
data LUNs by the fair tag sharing algorithm. Make the fair tag sharing
configurable and improve the performance for UFS devices.
See also https://lore.kernel.org/all/20230103195337.158625-1-bvanassche@acm.org
Ed Tsai (2):
block: make the fair sharing of tag configurable
ufs: don't use the fair tag sharings
block/blk-mq-debugfs.c | 1 +
block/blk-mq-tag.c | 1 +
block/blk-mq.c | 3 ++-
drivers/ufs/core/ufshcd.c | 3 +++
include/linux/blkdev.h | 6 +++++-
5 files changed, 12 insertions(+), 2 deletions(-)
--
2.18.0
next reply other threads:[~2023-05-09 6:53 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-09 6:52 Ed Tsai [this message]
2023-05-09 6:52 ` [PATCH 1/2] block: make the fair sharing of tag configurable Ed Tsai
2023-05-09 21:33 ` kernel test robot
2023-05-11 15:33 ` Christoph Hellwig
2023-05-22 5:30 ` kernel test robot
2023-05-09 6:52 ` [PATCH 2/2] ufs: don't use the fair tag sharings Ed Tsai
2023-05-09 8:03 ` Avri Altman
2023-05-09 14:04 ` Bart Van Assche
2023-05-09 16:19 ` Avri Altman
2023-05-09 16:30 ` Bart Van Assche
2023-05-10 5:21 ` Avri Altman
2023-05-10 15:56 ` Bart Van Assche
2023-05-11 15:34 ` Christoph Hellwig
2023-05-11 15:38 ` Bart Van Assche
2023-05-12 14:02 ` Christoph Hellwig
2023-05-12 18:12 ` Bart Van Assche
2023-05-13 3:09 ` Yu Kuai
2023-05-16 15:12 ` Bart Van Assche
2023-05-17 7:49 ` Yu Kuai
2023-05-17 18:23 ` Bart Van Assche
2023-05-18 1:49 ` Yu Kuai
2023-05-18 2:23 ` Bart Van Assche
2023-05-18 7:55 ` Yu Kuai
2023-06-13 14:07 ` Bart Van Assche
2023-06-14 1:58 ` Yu Kuai
2023-05-10 22:56 ` [PATCH 0/2] block: improve the share tag set performance Bart Van Assche
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