From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55816) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c76QV-0001vE-QP for qemu-devel@nongnu.org; Wed, 16 Nov 2016 15:03:24 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c76QS-0002QB-OV for qemu-devel@nongnu.org; Wed, 16 Nov 2016 15:03:23 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:53905) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c76QS-0002Pn-GJ for qemu-devel@nongnu.org; Wed, 16 Nov 2016 15:03:20 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAGK22ws140554 for ; Wed, 16 Nov 2016 15:03:18 -0500 Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by mx0a-001b2d01.pphosted.com with ESMTP id 26rt7f58vd-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 16 Nov 2016 15:03:18 -0500 Received: from localhost by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 16 Nov 2016 13:03:17 -0700 References: <20161115134629.23161-1-pbonzini@redhat.com> <15408f40-5f13-e98d-2988-8c068295a888@de.ibm.com> From: Farhan Ali Date: Wed, 16 Nov 2016 15:03:13 -0500 MIME-Version: 1.0 In-Reply-To: <15408f40-5f13-e98d-2988-8c068295a888@de.ibm.com> Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 7bit Message-Id: <981b7cda-ea4a-f082-6529-5f84c0c3f120@linux.vnet.ibm.com> Subject: Re: [Qemu-devel] [PATCH for-2.8 0/3] virtio fixes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , qemu-devel@nongnu.org Cc: Christian Borntraeger , mst@redhat.com, alex.williamson@redhat.com Hi Paolo, I was able to test your patches in our s390 environment. I don't see the qemu crashes anymore which I noticed before. Testing a guest running high stress I/O workload, without iothreads does show a delay in guest response time. But running the same test with iothreads seems to solve the issue. Tested-by : Farhan Ali Thank you Farhan On 11/16/2016 02:50 PM, Christian Borntraeger wrote: > On 11/15/2016 02:46 PM, Paolo Bonzini wrote: >> Patch 1 fixes vhost, patches 2-3 fix Windows hibernation. >> >> Paolo >> >> Paolo Bonzini (3): >> virtio: introduce grab/release_ioeventfd to fix vhost >> virtio: access ISR atomically >> virtio: set ISR on dataplane notifications >> >> hw/block/dataplane/virtio-blk.c | 4 +-- >> hw/scsi/virtio-scsi-dataplane.c | 7 ------ >> hw/scsi/virtio-scsi.c | 2 +- >> hw/virtio/trace-events | 2 +- >> hw/virtio/vhost.c | 11 +++------ >> hw/virtio/virtio-bus.c | 54 ++++++++++++++++++++++++++++++++--------- >> hw/virtio/virtio-mmio.c | 6 ++--- >> hw/virtio/virtio-pci.c | 9 +++---- >> hw/virtio/virtio.c | 46 ++++++++++++++++++++++++++++------- >> include/hw/virtio/virtio-bus.h | 14 +++++++++++ >> include/hw/virtio/virtio-scsi.h | 1 - >> include/hw/virtio/virtio.h | 4 ++- >> 12 files changed, 110 insertions(+), 50 deletions(-) >> > Farhan, > > it was this mail thread.