Merge branch 'latency-rebase-again' of https://github.com/vincentkfu/fio
* 'latency-rebase-again' of https://github.com/vincentkfu/fio:
t/run-fio-tests: increase time allowed for tests to pass
t/run-fio-tests: add latency_percentiles.py
t/latency_percentiles: test latency percentile reporting
stat: fix high/low prio unified rw bug
fio: better distinguish between high and low priority
stat: make priority summary statistics consistent with percentiles
docs: updates for slat, clat, lat percentile reporting
gfio: display slat, clat, and lat percentiles
fio: report percentiles for slat, clat, lat
fio: groundwork for adding slat, lat percentiles