== sanity test 46: dirtying a previously written page ========================================================================== 01:03:36 (1715576616)
vm.dirty_writeback_centisecs = 0
vm.dirty_writeback_centisecs = 0
vm.dirty_ratio = 50
vm.dirty_background_ratio = 25
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00474656 s, 863 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00826862 s, 495 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.0014882 s, 2.8 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20