[Qemu-block] [PATCH 4/5] qemu-img bench: Implement -S (step size)

2016-06-03 Thread Kevin Wolf
With this new option, qemu-img bench can be told to advance the current offset after each request by a different value than the buffer size. This is useful for controlling the conditions for cluster allocation in image formats (e.g. qcow2 cluster allocation with COW in front of the request, or COW

Re: [Qemu-block] [PATCH 4/5] qemu-img bench: Implement -S (step size)

2016-06-06 Thread Denis V. Lunev
On 06/03/2016 03:30 PM, Kevin Wolf wrote: With this new option, qemu-img bench can be told to advance the current offset after each request by a different value than the buffer size. This is useful for controlling the conditions for cluster allocation in image formats (e.g. qcow2 cluster allocati