== sanity test 46: dirtying a previously written page ========================================================================== 17:16:07 (1718399767)
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, 0.00212382 s, 1.9 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000912058 s, 4.5 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000576047 s, 7.1 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20