From: Chaitanya Kulkarni <chaitanyak@nvidia.com>
To: Chao Leng <lengchao@huawei.com>
Cc: "hch@lst.de" <hch@lst.de>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"sagi@grimberg.me" <sagi@grimberg.me>,
"kbusch@kernel.org" <kbusch@kernel.org>,
"ming.lei@redhat.com" <ming.lei@redhat.com>,
"axboe@kernel.dk" <axboe@kernel.dk>
Subject: Re: [PATCH v2 0/2] improve nvme quiesce time for large amount of namespaces
Date: Sat, 15 Oct 2022 00:30:44 +0000 [thread overview]
Message-ID: <3bd6fc45-ed8a-32da-56c8-93edbe583649@nvidia.com> (raw)
In-Reply-To: <e785f247-7ae1-ef26-6dd2-d7379fc739e6@huawei.com>
> The test result:
> Test Scenario: nvme over roce with multipathing, 256 namespaces
> When send I/Os to all namespaces, simulate a path fault, the fail over
> waiting time
> is more than 20 seconds.
> After analysis, it was found that the total of quiesce waiting time for
> 256 namespace is
> more than 20 seconds.
> After optimization, same scenario the fail over waiting time is less
> than 1 second.
I'm not questioning what you are doing, please add these to the
cover-letter or patches for reference.
-ck
next prev parent reply other threads:[~2022-10-15 0:31 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-13 9:44 [PATCH v2 0/2] improve nvme quiesce time for large amount of namespaces Chao Leng
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 [this message]
-- 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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