From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752149AbdC0H7V convert rfc822-to-8bit (ORCPT ); Mon, 27 Mar 2017 03:59:21 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:43863 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751499AbdC0H7K (ORCPT ); Mon, 27 Mar 2017 03:59:10 -0400 Date: Mon, 27 Mar 2017 09:58:17 +0200 From: Sebastian Andrzej Siewior To: Chao Peng Cc: Sergey Senozhatsky , Yinghai Lu , "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , the arch/x86 maintainers , Michal Marek , Kees Cook , Baoquan He , "H.J. Lu" , Paul Bolle , Masahiro Yamada , Borislav Petkov , Andrew Morton , Arnd Bergmann , Petr Mladek , "David S. Miller" , "Paul E. McKenney" , Andy Lutomirski , Thomas Garnier , Nicolas Pitre , Tejun Heo , Daniel Mack , Helge Deller , Rik van Riel , Linux Kernel Mailing List , linux-kbuild Subject: Re: [PATCH] x86/boot: Support uncompressed kernel Message-ID: <20170327075817.bb7wda62fcuvfa4b@linutronix.de> References: <1490273467-97948-1-git-send-email-chao.p.peng@linux.intel.com> <20170323153117.GA6356@tigerII.localdomain> <1490333740.2925.7.camel@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: <1490333740.2925.7.camel@linux.intel.com> User-Agent: NeoMutt/20170306 (1.8.0) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2017-03-24 13:35:40 [+0800], Chao Peng wrote: > > > > >     kernel               kernel size    time in decompress_kernel > > > >     compressed (gzip)    3.3M           53ms > > > >     uncompressed         14M            3ms > > > > Exactly, LZ4 is the fastest. It takes 16ms to complete the > decompression. Still sounds a little longer when compared to > uncompressed kernel. Are we seriously talking here about one-time improvement of 13ms boot time? > Chao Sebastian