From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lazybastard.de ([212.112.238.170] helo=longford.logfs.org) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1K4eiI-0001ug-9J for linux-mtd@lists.infradead.org; Fri, 06 Jun 2008 16:22:51 +0000 Date: Fri, 6 Jun 2008 18:22:39 +0200 From: =?utf-8?B?SsO2cm4=?= Engel To: Alexey Korolev Subject: Re: [RFC/PATCH 2/3] NAND multiple plane feature Message-ID: <20080606162238.GA30407@logfs.org> References: <20080601174841.GH13094@logfs.org> <20080605210929.GB19234@logfs.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Cc: linux-mtd@lists.infradead.org, tglx@linutronix.de, dwmw2@infradead.org, vasiliy.leonenko@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 6 June 2008 15:01:05 +0100, Alexey Korolev wrote: > > We just tried to check your scenario. It is not > possible to overwrite something if JFFS2 returned -ENOSPC until > something got deleted. > > In fact our test suite do not include this test case. We have another. > Write file1 at about 5% of whole space, write file2 for rest of space. > Delete file1. Do step 2. > In this not so good case we got the following numbers: > > single-plane: > 73 sec 424541 usec > > dual-plane: > 69 sec 428637 usec An improvement instead of the expected regression. Impressive. Jörn -- tglx1 thinks that joern should get a (TM) for "Thinking Is Hard" -- Thomas Gleixner