== sanity test 46: dirtying a previously written page ========================================================================== 05:41:39 (1721382099)
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, 0.00171008 s, 2.4 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000847051 s, 4.8 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000736182 s, 5.6 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20