From: Omar Sandoval <osandov@osandov.com>
To: Ming Lei <ming.lei@redhat.com>
Cc: Omar Sandoval <osandov@fb.com>, Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org
Subject: Re: [PATCH] block/023: performance test on queue creation & cleanup
Date: Wed, 25 Jul 2018 14:33:14 -0700 [thread overview]
Message-ID: <20180725213314.GD16847@vader> (raw)
In-Reply-To: <20180704052956.5110-1-ming.lei@redhat.com>
On Wed, Jul 04, 2018 at 01:29:56PM +0800, Ming Lei wrote:
> SCSI may have lots of channels, targets or LUNs, so it may
> take long time for creating and cleaning up queues.
>
> So introduce block/023 and uses null_blk to run this test
> on both blk-mq and legacy mode, then compare both and check
> the difference.
>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>
> ---
> tests/block/023 | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/block/023.out | 2 ++
> 2 files changed, 103 insertions(+)
> create mode 100755 tests/block/023
> create mode 100755 tests/block/023.out
Hi, Ming, is this a regression test for "blk-mq: remove
synchronize_rcu() from blk_mq_del_queue_tag_set()" and "blk-mq: avoid to
synchronize rcu inside blk_cleanup_queue()"?
next prev parent reply other threads:[~2018-07-25 21:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-04 5:29 [PATCH] block/023: performance test on queue creation & cleanup Ming Lei
2018-07-25 21:33 ` Omar Sandoval [this message]
2018-07-29 22:43 ` Ming Lei
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