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From: Jens Axboe <axboe@fb.com>
To: Baolin Wang <baolin.wang@linaro.org>,
	ulf.hansson@linaro.org, rostedt@goodmis.org, mingo@redhat.com
Cc: adrian.hunter@intel.com, yangbo.lu@freescale.com,
	akpm@linux-foundation.org, JBottomley@Odin.com,
	lporzio@micron.com, jonathanh@nvidia.com, grundler@chromium.org,
	fabf@skynet.be, yunpeng.gao@intel.com, dan.j.williams@intel.com,
	rabin.vincent@axis.com, chuanxiao.dong@intel.com,
	shawn.lin@rock-chips.com, heiko@sntech.de, dianders@chromium.org,
	david@protonic.nl, broonie@kernel.org, linus.walleij@linaro.org,
	takahiro.akashi@linaro.org, linux-kernel@vger.kernel.org,
	linux-mmc@vger.kernel.org
Subject: Re: [PATCH] mmc: Provide tracepoints for request processing
Date: Thu, 24 Mar 2016 08:08:53 -0600	[thread overview]
Message-ID: <56F3F4F5.8050200@fb.com> (raw)
In-Reply-To: <05d6338bddae751c1755e7825d4179658e78cc71.1458819912.git.baolin.wang@linaro.org>

On 03/24/2016 05:54 AM, Baolin Wang wrote:
> This patch provides some tracepoints for the lifecycle of a request from
> fetching to completion to help with performance analysis of MMC subsystem.

Most of these already exist as block layer trace points, why do we need 
mmc specific ones?


-- 
Jens Axboe


WARNING: multiple messages have this Message-ID (diff)
From: Jens Axboe <axboe@fb.com>
To: Baolin Wang <baolin.wang@linaro.org>, <ulf.hansson@linaro.org>,
	<rostedt@goodmis.org>, <mingo@redhat.com>
Cc: <adrian.hunter@intel.com>, <yangbo.lu@freescale.com>,
	<akpm@linux-foundation.org>, <JBottomley@Odin.com>,
	<lporzio@micron.com>, <jonathanh@nvidia.com>,
	<grundler@chromium.org>, <fabf@skynet.be>,
	<yunpeng.gao@intel.com>, <dan.j.williams@intel.com>,
	<rabin.vincent@axis.com>, <chuanxiao.dong@intel.com>,
	<shawn.lin@rock-chips.com>, <heiko@sntech.de>,
	<dianders@chromium.org>, <david@protonic.nl>,
	<broonie@kernel.org>, <linus.walleij@linaro.org>,
	<takahiro.akashi@linaro.org>, <linux-kernel@vger.kernel.org>,
	<linux-mmc@vger.kernel.org>
Subject: Re: [PATCH] mmc: Provide tracepoints for request processing
Date: Thu, 24 Mar 2016 08:08:53 -0600	[thread overview]
Message-ID: <56F3F4F5.8050200@fb.com> (raw)
In-Reply-To: <05d6338bddae751c1755e7825d4179658e78cc71.1458819912.git.baolin.wang@linaro.org>

On 03/24/2016 05:54 AM, Baolin Wang wrote:
> This patch provides some tracepoints for the lifecycle of a request from
> fetching to completion to help with performance analysis of MMC subsystem.

Most of these already exist as block layer trace points, why do we need 
mmc specific ones?


-- 
Jens Axboe

  parent reply	other threads:[~2016-03-24 14:10 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-24 11:54 [PATCH] mmc: Provide tracepoints for request processing Baolin Wang
2016-03-24 14:02 ` kbuild test robot
2016-03-24 14:02   ` kbuild test robot
2016-03-24 14:08 ` Jens Axboe [this message]
2016-03-24 14:08   ` Jens Axboe
2016-03-25  7:32   ` Baolin Wang
2016-03-25 14:07     ` Jens Axboe
2016-03-25 14:07       ` Jens Axboe
2016-03-28  4:55       ` Baolin Wang
2016-03-24 14:53 ` kbuild test robot
2016-03-24 14:53   ` kbuild test robot
2016-03-24 15:13 ` Steven Rostedt
2016-03-25  7:58   ` Baolin Wang

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