From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34727) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eASzo-0004tW-RF for qemu-devel@nongnu.org; Thu, 02 Nov 2017 23:50:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eASzn-00080E-Ob for qemu-devel@nongnu.org; Thu, 02 Nov 2017 23:50:16 -0400 Date: Fri, 3 Nov 2017 11:50:03 +0800 From: Fam Zheng Message-ID: <20171103035003.GA18539@lemon> References: <20171009125940.24220-1-ashijeetacharya@gmail.com> <20171009141236.GC28199@lemon> <20171020062757.GE29815@lemon> <533277bd-3423-e717-2cd9-a011a8535ab7@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <533277bd-3423-e717-2cd9-a011a8535ab7@redhat.com> Subject: Re: [Qemu-devel] [PATCH v9 0/8] Optimize VMDK I/O by allocating multiple clusters List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: John Snow Cc: Ashijeet Acharya , kwolf@redhat.com, mreitz@redhat.com, qemu-block@nongnu.org, qemu-devel@nongnu.org, stefanha@gmail.com On Thu, 11/02 17:02, John Snow wrote: > > > On 10/20/2017 02:53 AM, Ashijeet Acharya wrote: > > > > On Fri, Oct 20, 2017 at 11:58 Fam Zheng > > wrote: > > > > On Mon, 10/09 22:12, Fam Zheng wrote: > > > On Mon, 10/09 18:29, Ashijeet Acharya wrote: > > > > Optimization test results: > > > > > > > > This patch series improves 128 KB sequential write performance to an > > > > empty VMDK file by 54% > > > > > > > > Benchmark command: ./qemu-img bench -w -c 1024 -s 128K -d 1 -t > > none -f > > > > vmdk test.vmdk > > > > > > > > Changes in v9: > > > > - rebase the series > > > > > > Thanks, looks good to me, applied: > > > > > > https://github.com/famz/qemu/tree/staging > > > > Ashijeet: I've been testing my branch and it seems installing > > Fedora/CentOS to a > > VMDK image is broken with your patches applied. Both guest and QEMU are > > responsive, but the installing of packages stops to make any > > progress at some > > point: > > > > Installing rootfiles.noarch (317/318) > > Installing langpacks-en.noarch (318/318) > > Performing post-installation setup tasks > > Configuring fedora-release.noarch > > Configuring filesystem.x86_64 > > Configuring GeoIP-GeoLite-data.noarch > > Configuring python3.x86_64 > > Configuring fedora-logos.x86_64 > > Configuring kernel-core.x86_64 > > > > # hang here > > > > Can you reproduce this on your machine? > > > > My command line is something like this: > > > > qemu-system-x86_64 -enable-kvm -cpu host -m 1G -qmp > > unix:/home/fam/.q/qemu-8DOC9EF4/qmp,server,nowait -name 8DOC9EF4 > > -netdev user,id=vnet,hostfwd=:0.0.0.0 :10022-:22 > > -device virtio-net-pci,netdev=vnet -drive > > file=/var/tmp/test2.vmdk,if=none,id=drive-1,cache=none,aio=native > > -device virtio-blk-pci,drive=drive-1 -cdrom > > /stor/iso/CentOS-6.9-x86_64-minimal.iso -pidfile > > /home/fam/.q/qemu-8DOC9EF4/pid > > > > qemu.git master doesn't have this problem. So I'll drop this series > > from the > > pull request until it is resolved. > > > > > > Fam: Alright, I will look into this but I cannot give you a deadline > > unfortunately. I will try my best to resolve this as soon as though. > > > > Ashijeet > > > > > > > > Fam > > > > Do we need to temporarily roll this back for the 2.11 release if it > cannot be addressed in time? Hi John, it's not merged yet, I dropped it from my pull request. Fam