From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36995) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eAfSY-0002Wb-GU for qemu-devel@nongnu.org; Fri, 03 Nov 2017 13:08:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eAfSX-0003TS-9w for qemu-devel@nongnu.org; Fri, 03 Nov 2017 13:08:46 -0400 References: <20171009125940.24220-1-ashijeetacharya@gmail.com> <20171009141236.GC28199@lemon> <20171020062757.GE29815@lemon> <533277bd-3423-e717-2cd9-a011a8535ab7@redhat.com> <20171103035003.GA18539@lemon> From: John Snow Message-ID: Date: Fri, 3 Nov 2017 13:08:30 -0400 MIME-Version: 1.0 In-Reply-To: <20171103035003.GA18539@lemon> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit 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: Fam Zheng Cc: Ashijeet Acharya , kwolf@redhat.com, mreitz@redhat.com, qemu-block@nongnu.org, qemu-devel@nongnu.org, stefanha@gmail.com On 11/02/2017 11:50 PM, Fam Zheng wrote: > 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 > OK thanks, just trying to get back up to speed and making sure things that found their way into my "pay attention to this" folder are taken care of. :) --js