This looks very cool. I will dive into it as soon as the release
cycle is over. Once it gets stabilized we will be able to integrate
it into the hammer cleanup code to reduce its impact on the system.
Have you done any testing against typically expensive HAMMER operations
such as rm -rf's and tar extractions? Those might be harder to schedule
since so much of the work gets shoved over to the HAMMER flusher
threads.
-Matt
