== sanity test 46: dirtying a previously written page ========================================================================== 00:04:07 (1789445047)
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, 4.0 KiB) copied, 0.011853 s, 346 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB, 4.0 KiB) copied, 0.00550948 s, 743 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB, 4.0 KiB) copied, 0.00282828 s, 1.4 MB/s
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 30
vm.dirty_writeback_centisecs = 500
vm.dirty_background_ratio = 10
vm.dirty_ratio = 30