From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([192.100.122.230] helo=mgw-mx03.nokia.com) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1L08ST-0000xd-8T for linux-mtd@lists.infradead.org; Wed, 12 Nov 2008 05:40:05 +0000 Subject: Re: MTD/flash perfomance statistics From: Artem Bityutskiy To: Bruce_Leonard@selinc.com In-Reply-To: References: Content-Type: text/plain; charset=utf-8 Date: Wed, 12 Nov 2008 07:38:09 +0200 Message-Id: <1226468289.16925.28.camel@sauron> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Cc: linux-mtd@lists.infradead.org Reply-To: dedekind@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2008-11-11 at 10:08 -0800, Bruce_Leonard@selinc.com wrote: > We're using UBIFS/UBI/MTD/NAND and we want to find out how much of our=20 > time is spent accessing the flash. Are there any tools or is there any=20 > code in that chain that collects any sort of statistics on flash=20 > performace/utilization? I could do something as crude as a counter in my= =20 > NAND driver, but if there's anything more sophisticated that I can just=20 > "use out of the box" so to speak that would be better. Thanks. Not sure what exactly you need, but probably you want oprofile? --=20 Best regards, Artem Bityutskiy (=D0=91=D0=B8=D1=82=D1=8E=D1=86=D0=BA=D0=B8=D0=B9 =D0=90= =D1=80=D1=82=D1=91=D0=BC)