From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fg-out-1718.google.com ([72.14.220.159]) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1O4d1w-0005S0-T4 for linux-mtd@lists.infradead.org; Wed, 21 Apr 2010 16:44:05 +0000 Received: by fg-out-1718.google.com with SMTP id e21so3773281fga.0 for ; Wed, 21 Apr 2010 09:44:03 -0700 (PDT) Subject: Re: Data read/write request length in UBIFS!!! From: Artem Bityutskiy To: Murali N In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Date: Wed, 21 Apr 2010 19:42:43 +0300 Message-Id: <1271868163.11751.1398.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: linux-mtd@lists.infradead.org Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 2010-04-21 at 22:02 +0530, Murali N wrote: > Hi, > I have few basic doubt on UBIFS/UBI. > > At present i am seeing some 64 bytes read request coming while doing > the "ubiattach" on one of the MTD partition. Why is this a problem? > What's the typical read/write length request that come's from the UBIFS? It depends of what is being read. Sometimes these are few bytes (reading LPT or a direntry), sometimes 1-2 pages (reading file data), sometimes whole eraseblock (GC-ing). > In a normal scenario read/write requests to flash would be multiple of > flash page size? or it could be of any size? Any size. -- Best Regards, Artem Bityutskiy (Артём Битюцкий)