Re: [Qemu-devel] [PATCHv3] block: add event when disk usage exceeds threshold

2014-12-02 Thread Francesco Romani
- Original Message - > From: "Stefan Hajnoczi" > To: "Francesco Romani" > Cc: kw...@redhat.com, mdr...@linux.vnet.ibm.com, qemu-devel@nongnu.org, > lcapitul...@redhat.com > Sent: Tuesday, December 2, 2014 4:01:17 PM > Subject: Re: [Qemu-devel

Re: [Qemu-devel] [PATCHv3] block: add event when disk usage exceeds threshold

2014-12-02 Thread Stefan Hajnoczi
On Fri, Nov 28, 2014 at 01:31:07PM +0100, Francesco Romani wrote: > @@ -82,6 +83,8 @@ BlockDeviceInfo *bdrv_block_device_info(BlockDriverState > *bs) > info->iops_size = cfg.op_size; > } > > +info->write_threshold = bdrv_usage_threshold_get(bs); Overall looks good but I notice

Re: [Qemu-devel] [PATCHv3] block: add event when disk usage exceeds threshold

2014-12-02 Thread Francesco Romani
- Original Message - > From: "Francesco Romani" > To: "Eric Blake" > Cc: kw...@redhat.com, lcapitul...@redhat.com, qemu-devel@nongnu.org, > stefa...@redhat.com, mdr...@linux.vnet.ibm.com > Sent: Tuesday, December 2, 2014 8:47:45 AM > Subject: Re: [

Re: [Qemu-devel] [PATCHv3] block: add event when disk usage exceeds threshold

2014-12-01 Thread Francesco Romani
14 10:07:38 PM > Subject: Re: [Qemu-devel] [PATCHv3] block: add event when disk usage exceeds > threshold > > On 11/28/2014 05:31 AM, Francesco Romani wrote: > > Managing applications, like oVirt (http://www.ovirt.org), make extensive > > use of thin-provisioned disk images.

Re: [Qemu-devel] [PATCHv3] block: add event when disk usage exceeds threshold

2014-12-01 Thread Eric Blake
On 11/28/2014 05:31 AM, Francesco Romani wrote: > Managing applications, like oVirt (http://www.ovirt.org), make extensive > use of thin-provisioned disk images. > To let the guest run smoothly and be not unnecessarily paused, oVirt sets > a disk usage threshold (so called 'high water mark') based

[Qemu-devel] [PATCHv3] block: add event when disk usage exceeds threshold

2014-11-28 Thread Francesco Romani
Managing applications, like oVirt (http://www.ovirt.org), make extensive use of thin-provisioned disk images. To let the guest run smoothly and be not unnecessarily paused, oVirt sets a disk usage threshold (so called 'high water mark') based on the occupation of the device, and automatically exte