From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58248) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJzgK-00043O-1V for qemu-devel@nongnu.org; Tue, 28 Jul 2015 03:52:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZJzgF-0002O8-Hi for qemu-devel@nongnu.org; Tue, 28 Jul 2015 03:52:11 -0400 Received: from mout.gmx.net ([212.227.17.21]:58159) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZJzgF-0002Ne-6V for qemu-devel@nongnu.org; Tue, 28 Jul 2015 03:52:07 -0400 Received: from [192.168.178.27] ([46.223.228.50]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0Lj25i-1YlUPQ1OTm-00dHV4 for ; Tue, 28 Jul 2015 09:52:06 +0200 From: Dennis Luehring Message-ID: <55B734A7.8040108@gmx.net> Date: Tue, 28 Jul 2015 09:52:07 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] Debian 7.8.0 SPARC64 on qemu - anything i can do to speedup the emulation? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org (i've posted the question already on qemu-discuss@nongnu.org but was toled to better use this mailing list) i've prepared an Debian 7.8.0 image for SPARC64/qemu emulation for C/C++ development before-real-hardware big-endian/unaligned tests i've benchmarked compiling of single pugixml.cpp (https://github.com/zeux/pugixml/blob/master/src/pugixml.cpp) qemu-system-sparc64: >180sek x64 native : ~ 2sek so my sparc64 emulation is around 90 times slower then native x64 my system: using lastest qemu git 2.3.x, with virtio for harddisk/network and qcow2 image https://depositfiles.com/files/sj20aqwp0 (~280MB press the "regular download" button, wait some seconds, solve the chapca, "download file in regular mode by browser" there is pugi_sparc.txt in the 7z which describes how to start,use and what is installed in the image qemu runs natively under a ubuntu 15.04 (x64), Core i7, 8GB system doing nothing but qemu installed is gcc/g++ 4.6 make sshd running compiling cmake 2.3.2 tooked around 10h compiling pugixml takes also very very long "top perf" from guest and host while compiling pugixml don't show big blockers or something over time http://pastebin.com/D2fUpPrM anything i can do to speedup the emulation?