== sanity test 46: dirtying a previously written page ========================================================================== 00:01:34 (1746072094)
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, 0.00571014 s, 717 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00292775 s, 1.4 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00146655 s, 2.8 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20