== sanity test 46: dirtying a previously written page ========================================================================== 04:24:14 (1749543854)
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, 0.00287967 s, 1.4 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00505321 s, 811 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000902039 s, 4.5 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20