From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Opdenacker Subject: Re: Status of bzip2 and lzma kernel compression for ARM? Date: Thu, 25 Jun 2009 17:24:59 +0200 Message-ID: <4A4396CB.9000703@free-electrons.com> References: <4A428AFF.20307@free-electrons.com> <4A433BCD.2030506@compulab.co.il> <200906251104.02830.florian@openwrt.org> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <200906251104.02830.florian@openwrt.org> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="iso-8859-1" To: Florian Fainelli Cc: Mike Rapoport , Alain Knaff , Thomas Petazzoni , Russell King - ARM Linux , Linux Kernel Mailing List , linux-arm-kernel@lists.arm.linux.org.uk, linux-embedded mailing list On 06/25/2009 11:04 AM, Florian Fainelli wrote: > Le Thursday 25 June 2009 10:56:45 Mike Rapoport, vous avez =E9crit : >> I'm not sure what exactly do you mean by "test bzip2 and lzma compre= ssion >> on ARM", but if you refer to internal initramfs compression, I can t= ell >> that I've used lzma compression on PXA270 and it works fine. >> =20 > > I think Michael refers to the lzma decompressor which allows you to u= se a=20 > lzma-compressed kernel as a (b)zImage with its architecture specific=20 > decompressor piggy-backed in the (b)zImage. > > Such thing would also be very useful on MIPS and PowerPC as well. > =20 Yes, that's what I meant: using a bzip2 or lzma compressed kernel. I would like to know the boot time impact on an ARM board. If I don't get any answer from Alain in the next days, I will propose a patch update for ARM. Cheers, Michael. --=20 Michael Opdenacker, Free Electrons Kernel, drivers and embedded Linux development, consulting, training and support. http://free-electrons.com