== sanity test 46: dirtying a previously written page ========================================================================== 06:14:13 (1730805253)
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, 0.0048356 s, 847 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00831756 s, 492 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00125318 s, 3.3 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20