From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ew0-f221.google.com ([209.85.219.221]) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1NPkJt-0000NO-EX for linux-mtd@lists.infradead.org; Tue, 29 Dec 2009 22:13:41 +0000 Received: by ewy21 with SMTP id 21so3048767ewy.2 for ; Tue, 29 Dec 2009 14:13:36 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <4B3A725F.4050200@lambsys.com> References: <4B3A725F.4050200@lambsys.com> Date: Tue, 29 Dec 2009 17:13:35 -0500 Message-ID: Subject: Re: ubiattach taking very long time From: twebb To: David Lambert Content-Type: text/plain; charset=ISO-8859-1 Cc: linux-mtd@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > I got the following advice for a similar problem. I found I had debugging > turned on. > > "Is your NAND slow? Have you configured UBI debugging checks turned on? > > Please, measure your nand throughput withmtd_speedtest: > > http://www.linux-mtd.infradead.org/doc/general.html#L_mtd_tests > Thanks for the input. I don't have any debugging turned on, but I'll try the speedtest. It doesn't appear to be a standard mtd-util; where can I find it? And any idea how I'll determine from the results that the nand throughput is the problem? i.e. what is considered acceptable or not? twebb