On Wed, Nov 09, 2016 at 05:01:31PM -0500, Paolo Bonzini wrote:
>
>
> - Original Message -
> > From: "Jeff Cody"
> > To: "Paolo Bonzini"
> > Cc: qemu-devel@nongnu.org, qemu-bl...@nongnu.org, js...@redhat.com
> > Sent: Wednesday, November 9, 2016 7:38:26 PM
> > Subject: Re: [PATCH for-2.8
- Original Message -
> From: "Jeff Cody"
> To: "Paolo Bonzini"
> Cc: qemu-devel@nongnu.org, qemu-bl...@nongnu.org, js...@redhat.com
> Sent: Wednesday, November 9, 2016 7:38:26 PM
> Subject: Re: [PATCH for-2.8] mirror: do not flush every time the disks are
> synced
>
> On Wed, Nov 09,
On Wed, Nov 09, 2016 at 05:20:08PM +0100, Paolo Bonzini wrote:
> This puts a huge strain on the disks when there are many concurrent
> migrations. With this patch we only flush twice: just before issuing
> the event, and just before pivoting to the destination. If management
> will complete the j
This puts a huge strain on the disks when there are many concurrent
migrations. With this patch we only flush twice: just before issuing
the event, and just before pivoting to the destination. If management
will complete the job close to the BLOCK_JOB_READY event, the cost of
the second flush sho
