Hi,
I stumbled across the MAX_INFLIGHT_IO field that was introduced in 2015 and was curious what was the reason to choose 512MB as readahead? The question is that I found that the source VM gets very unresponsive I/O wise while the initial 512MB are read and furthermore seems to stay unreasponsive if we choose a high migration speed and have a fast storage on the destination VM. In our environment I modified this value to 16MB which seems to work much smoother. I wonder if we should make this a user configurable value or define a different rate limit for the block transfer in bulk stage at least? Peter
