dirtyrate at the granualrity of vcpu
=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback base..
=== TEST SCRIPT
From: Hyman Huang(黄勇)
v5:
- rename global_dirty_log to global_dirty_tracking on Peter's advice
- make global_dirty_tracking a bitmask:
1. add assert statement to ensure starting dirty tracking repeatly
not allowed.
2. add assert statement to ensure dirty tracking cannot be stopped
