== sanity test 46: dirtying a previously written page ========================================================================== 23:24:15 (1717557855)
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, 0.00255018 s, 1.6 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00254775 s, 1.6 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000580563 s, 7.1 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20