== sanity test 46: dirtying a previously written page ========================================================================== 07:52:37 (1746791557)
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, 0.00234075 s, 1.7 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000905519 s, 4.5 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00178064 s, 2.3 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20