On Tue, Apr 23, 2024 at 12:48:07AM +0800, Kemeng Shi wrote: > Add wb_monitor.py script to monitor writeback information on backing dev > which makes it easier and more convenient to observe writeback behaviors > of running system. > > The wb_monitor.py script is written based on wq_monitor.py. > > Following domain hierarchy is tested: > global domain (320G) > / \ > cgroup domain1(10G) cgroup domain2(10G) > | | > bdi wb1 wb2 > > The wb_monitor.py script output is as following: > ./wb_monitor.py 252:16 -c > writeback reclaimable dirtied written avg_bw > 252:16_1 0 0 0 0 102400 > 252:16_4284 672 820064 9230368 8410304 685612 > 252:16_4325 896 819840 10491264 9671648 652348 > 252:16 1568 1639904 19721632 18081952 1440360 > > writeback reclaimable dirtied written avg_bw > 252:16_1 0 0 0 0 102400 > 252:16_4284 672 820064 9230368 8410304 685612 > 252:16_4325 896 819840 10491264 9671648 652348 > 252:16 1568 1639904 19721632 18081952 1440360 > ... > > Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx> > Suggested-by: Tejun Heo <tj@xxxxxxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun
