== sanity test 46: dirtying a previously written page ========================================================================== 05:57:56 (1721383076)
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, 0.00207843 s, 2.0 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00143134 s, 2.9 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00129606 s, 3.2 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20