== sanity test 46: dirtying a previously written page ========================================================================== 05:34:29 (1715333669)
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, 0.00341959 s, 1.2 MB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00823323 s, 497 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.001515 s, 2.7 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 20