== sanity test 46: dirtying a previously written page ========================================================================== 14:33:57 (1790706837)
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, 0.0178438 s, 230 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB, 4.0 KiB) copied, 0.00787481 s, 520 kB/s
1+0 records in
1+0 records out
4096 bytes (4.1 kB, 4.0 KiB) copied, 0.0104203 s, 393 kB/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