== sanity test 46: dirtying a previously written page ========================================================================== 05:34:24 (1734431664)
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, 0.00575948 s, 711 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00760609 s, 539 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.0013598 s, 3.0 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20