From: Chao Leng <lengchao@huawei.com>
To: <linux-nvme@lists.infradead.org>, <linux-block@vger.kernel.org>
Cc: <hch@lst.de>, <sagi@grimberg.me>, <kbusch@kernel.org>,
<lengchao@huawei.com>, <ming.lei@redhat.com>, <axboe@kernel.dk>
Subject: [PATCH v2 0/2] improve nvme quiesce time for large amount of namespaces
Date: Thu, 13 Oct 2022 17:44:48 +0800 [thread overview]
Message-ID: <20221013094450.5947-1-lengchao@huawei.com> (raw)
This set improves the quiesce time when using a large set of
namespaces, which also improves I/O failover time in a multipath environment.
We improve for both non-blocking hctxs and blocking hctxs introducing
blk_mq_[un]quiesce_tagset which works on all request queues over a given
tagset in parallel (which is the case in nvme) for both tagset types (blocking
and non-blocking);
Changes from v1:
- improvement is based on tagset rather than namesapces
Chao Leng (2):
blk-mq: add tagset quiesce interface
nvme: use blk_mq_[un]quiesce_tagset
block/blk-mq.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++++
drivers/nvme/host/core.c | 42 +++++++++------------------
drivers/nvme/host/nvme.h | 2 +-
include/linux/blk-mq.h | 2 ++
include/linux/blkdev.h | 2 ++
5 files changed, 93 insertions(+), 30 deletions(-)
--
2.16.4
next reply other threads:[~2022-10-13 9:45 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-13 9:44 Chao Leng [this message]
2022-10-13 9:44 ` [PATCH v2 1/2] blk-mq: add tagset quiesce interface Chao Leng
2022-10-13 10:28 ` Sagi Grimberg
2022-10-14 2:09 ` Chao Leng
2022-10-17 13:43 ` Christoph Hellwig
2022-10-18 9:51 ` Chao Leng
2022-10-17 13:39 ` Christoph Hellwig
2022-10-17 13:42 ` Christoph Hellwig
2022-10-18 8:39 ` Sagi Grimberg
2022-10-18 8:55 ` Christoph Hellwig
2022-10-18 9:06 ` Sagi Grimberg
2022-10-18 11:05 ` Christoph Hellwig
2022-10-18 9:52 ` Chao Leng
2022-10-17 15:21 ` Paul E. McKenney
2022-10-17 15:31 ` Christoph Hellwig
2022-10-17 22:41 ` Paul E. McKenney
2022-10-18 5:19 ` Christoph Hellwig
2022-10-19 0:35 ` Ming Lei
2022-10-19 7:15 ` Sagi Grimberg
2022-10-19 7:25 ` Christoph Hellwig
2022-10-19 7:27 ` Christoph Hellwig
2022-10-19 7:30 ` Sagi Grimberg
2022-10-19 7:32 ` Christoph Hellwig
2022-10-19 7:57 ` Sagi Grimberg
2022-10-19 8:17 ` Christoph Hellwig
2022-10-19 8:29 ` Sagi Grimberg
2022-10-18 9:52 ` Chao Leng
2022-10-18 15:04 ` Paul E. McKenney
2022-10-19 2:39 ` Chao Leng
2022-10-18 9:52 ` Chao Leng
2022-10-13 9:44 ` [PATCH v2 2/2] nvme: use blk_mq_[un]quiesce_tagset Chao Leng
2022-10-13 10:22 ` Sagi Grimberg
2022-10-14 2:09 ` Chao Leng
2022-10-17 13:48 ` Christoph Hellwig
2022-10-13 14:32 ` [PATCH v2 0/2] improve nvme quiesce time for large amount of namespaces Chaitanya Kulkarni
2022-10-14 2:12 ` Chao Leng
2022-10-15 0:30 ` Chaitanya Kulkarni
-- strict thread matches above, loose matches on Subject: below --
2022-10-20 3:53 Chao Leng
2022-10-20 6:34 ` Christoph Hellwig
2022-10-20 9:36 ` Chao Leng
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