== baseline M_JOURNAL accounting ==
            journal       0       0       0    390M      255
       journal-fifo       0       0       0    390M      170
/mnt/leak:L1 added
/mnt/leak:L2 added
/mnt/leak:L3 added
/mnt/leak:L4 added
/mnt/leak:L5 added
== after 5 journaled mount/unmount cycles ==
            journal       0       0       0    390M      265
       journal-fifo       0       0       0    390M      175
== full vmstat -m journal line history done ==