== sanity test 46: dirtying a previously written page ========================================================================== 07:51:39 (1740487899)
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, 0.00478226 s, 856 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00864858 s, 474 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00238065 s, 1.7 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20