On 11/16/2016 03:32 PM, Farhan Ali wrote:


On 11/16/2016 03:16 PM, Michael S. Tsirkin wrote:
On Wed, Nov 16, 2016 at 03:03:13PM -0500, Farhan Ali wrote:
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.
Compared to which version?
Compared to 2.7.0


But running

the same test with iothreads seems to solve the issue.

Tested-by : Farhan Ali <al...@linux.vnet.ibm.com>
Could you also test just patches 1 and 2 pls?

Okay will do

Testing with just patches 1 and 2, I did not see any change.


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.



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