== sanity test 46: dirtying a previously written page ========================================================================== 19:12:06 (1736986326)
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, 0.00198221 s, 2.1 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000881333 s, 4.6 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000742236 s, 5.5 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20