Il 19/07/2014 00:48, Chris Friesen ha scritto: >>> >> >> I forgot about "-drive ...,iops_max=NNN". :) > > I'm not sure it's actually useful though, since it specifies the max IO > operations per second, not the maximum number of in-flight operations.
No, that's "-drive iops=NNN". QEMU implements a leaky bucket algorithm, where "iops_max" gives the size of the bucket and "iops" gives the refill rate. Paolo > If the far end can't keep up with the requested rate of operations, then > the number of in-flight operations is going to grow even if you throttle > the number of operations per second.
