From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [67.18.166.194] (helo=warp.phpwebhosting.com) by canuck.infradead.org with smtp (Exim 4.63 #1 (Red Hat Linux)) id 1HgkBa-0004gZ-C3 for linux-mtd@lists.infradead.org; Wed, 25 Apr 2007 12:17:45 -0400 Message-ID: <462F7F20.6090807@indefia.com> Date: Wed, 25 Apr 2007 19:17:36 +0300 From: Semih Hazar MIME-Version: 1.0 To: Haavard Skinnemoen Subject: Re: Slow NAND + JFFS2 References: <462F45B1.8020007@indefia.com> <462F6938.90903@intel.com> <462F757A.7010103@indefia.com> <20070425180926.53d54b1c@dhcp-252-105.norway.atmel.com> In-Reply-To: <20070425180926.53d54b1c@dhcp-252-105.norway.atmel.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Haavard Skinnemoen wrote: > Interesting. I suspect the zlib code might thrash the TLB quite a bit > on the ap7000 because of the rather large workspace struct which is > allocated using vmalloc(). > > Until we get around to supporting larger page sizes for vmalloc, could > you try a different compressor (assuming you're currently using zlib)? > Zlib or rtime, not sure. I'll try other compressors and let you know the benchmarks.