== sanity test 46: dirtying a previously written page ========================================================================== 17:02:35 (1717016555)
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, 0.00611175 s, 670 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.01107 s, 370 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00155082 s, 2.6 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20