== sanity test 46: dirtying a previously written page ========================================================================== 00:16:55 (1721881015)
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, 0.00548131 s, 747 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00536846 s, 763 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00175928 s, 2.3 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20