From: Jens Axboe <axboe@kernel.dk>
To: Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org
Subject: Re: [PATCH 0/2] block: support debugfs on rq_qos & wbt
Date: Fri, 14 Dec 2018 05:56:40 -0700 [thread overview]
Message-ID: <b672db2c-f42e-5d74-531d-3b540febfb84@kernel.dk> (raw)
In-Reply-To: <20181214113926.7451-1-ming.lei@redhat.com>
On 12/14/18 4:39 AM, Ming Lei wrote:
> Hi,
>
> The 1st patch provides support debugfs on rq_qos.
>
> The 2nd patch exports blk-wbt's internal states via debugfs.
This is great! We do indeed badly need it, not just to diagnose
hangs, but also to get a better idea of what is going on. I've
got a wbt-trace script that I use, but this is easier for a quick
inspection.
--
Jens Axboe
prev parent reply other threads:[~2018-12-14 12:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 11:39 [PATCH 0/2] block: support debugfs on rq_qos & wbt Ming Lei
2018-12-14 11:39 ` [PATCH 1/2] blk-mq-debugfs: support rq_qos Ming Lei
2018-12-14 19:11 ` Bart Van Assche
2018-12-16 16:04 ` Jens Axboe
2018-12-16 16:09 ` Christoph Hellwig
2018-12-16 16:13 ` Jens Axboe
2018-12-14 11:39 ` [PATCH 2/2] blk-wbt: export internal state via debugfs Ming Lei
2018-12-14 19:15 ` Bart Van Assche
2018-12-16 16:07 ` Jens Axboe
2018-12-17 1:10 ` Ming Lei
2018-12-14 12:56 ` Jens Axboe [this message]
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