Comment 19 for bug 2051342

@turner basically any type of I/O workload can benefit from the HZ=1000 change, I haven't posted any test result, because in the scope of this proposal I wanted to focus mainly at the regression potential for CPU-intensive workloads and the benefits in terms of power consumption (this one as a positive side effect).

I will also post some numbers to better highlight the benefits of the low latency features.