== sanity test 46: dirtying a previously written page ========================================================================== 02:05:53 (1738479953)
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, 0.00239723 s, 1.7 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00111985 s, 3.7 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00132994 s, 3.1 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20