== sanity test 46: dirtying a previously written page ========================================================================== 19:08:00 (1746140880)
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, 0.011381 s, 360 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.0157463 s, 260 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00257492 s, 1.6 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20