== sanity test 46: dirtying a previously written page ========================================================================== 03:24:19 (1713079459)
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, 0.0052347 s, 782 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00808004 s, 507 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00159563 s, 2.6 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20