From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Madhusudhan" Subject: mmcqd seem to use lot of cpu cycles Date: Tue, 1 Sep 2009 12:12:44 -0500 Message-ID: <000301ca2b27$6c19a7a0$544ff780@am.dhcp.ti.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1652313495==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: linux-mmc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org List-Id: linux-mmc@vger.kernel.org This is a multi-part message in MIME format. --===============1652313495== Content-Type: multipart/alternative; boundary="----=_NextPart_000_0004_01CA2AFD.83439FA0" This is a multi-part message in MIME format. ------=_NextPart_000_0004_01CA2AFD.83439FA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi, While running one of the MMC use cases in the system I saw that mmcqd seems to eat up a lot of cpu cycles. I saw a thread which discussed some details. http://www.nabble.com/mmcqd-uses-a-large-amount-of-cpu-td23768078.html Any clue on what this process is doing? If a low level driver is using DMA I am not sure why there is so much load on the system due to mmcqd? Any thoughts? Regards, Madhu ------=_NextPart_000_0004_01CA2AFD.83439FA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

While running one of the MMC use cases in the system = I saw that mmcqd seems to eat up a lot of cpu cycles. I saw a thread which = discussed some details.

http://www.nabble.com/mmcqd-uses-a-large-amount-of-cpu-td23768078.= html

Any clue on what this process is doing? If a low = level driver is using DMA I am not sure why there is so much load on the = system due to mmcqd? Any thoughts?

Regards,

Madhu

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