== sanity test 42d: test complete truncate of file with cached dirty data ========================================================== 06:28:09 (1786184889)
debug=+cache
vm.dirty_writeback_centisecs = 0
vm.dirty_writeback_centisecs = 0
vm.dirty_ratio = 50
vm.dirty_background_ratio = 25
100+0 records in
100+0 records out
102400 bytes (102 kB, 100 KiB) copied, 0.143118 s, 715 kB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 30
checking grant......UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116        7608     1263696   1%  /mnt/lustre[MDT:0] 
lustre-MDT0001_UUID      1414116        6996     1264308   1%  /mnt/lustre[MDT:1] 
lustre-OST0000_UUID      3833116       26760     3580232   1%  /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3833116       15208     3591784   1%  /mnt/lustre[OST:1] 

filesystem_summary:      7666232       41968     7172016   1%  /mnt/lustre 

pass grant check: client:41058304 server:41058304
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 30