File: //proc/thread-self/root/proc/self/root/proc/fs/ext4/loop0/mb_groups
#group: free frags first [ 2^0 2^1 2^2 2^3 2^4 2^5 2^6 2^7 2^8 2^9 2^10 2^11 2^12 2^13 ]
#0 : 2641 103 17039 [ 51 47 40 44 48 8 3 2 0 1 0 0 0 0 ]
#1 : 32135 2 631 [ 3 0 1 0 0 0 0 1 1 0 1 1 1 3 ]
#2 : 32268 1 500 [ 0 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#3 : 32137 1 631 [ 1 0 0 1 0 0 0 1 1 0 1 1 1 3 ]
#4 : 32268 1 500 [ 0 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#5 : 32135 1 633 [ 1 1 1 0 0 0 0 1 1 0 1 1 1 3 ]
#6 : 32268 1 500 [ 0 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#7 : 32137 1 631 [ 1 0 0 1 0 0 0 1 1 0 1 1 1 3 ]
#8 : 32268 1 500 [ 0 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#9 : 32137 1 631 [ 1 0 0 1 0 0 0 1 1 0 1 1 1 3 ]
#10 : 32268 1 500 [ 0 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#11 : 32268 1 500 [ 0 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#12 : 29589 9 498 [ 5 6 9 8 4 5 3 1 1 0 0 0 1 3 ]
#13 : 32269 1 499 [ 1 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#14 : 32270 1 498 [ 0 1 1 1 0 0 0 0 0 1 1 1 1 3 ]
#15 : 32268 2 498 [ 0 2 0 1 0 0 0 0 0 1 1 1 1 3 ]
#16 : 14409 3 498 [ 1 2 3 3 2 0 0 0 0 0 2 2 2 0 ]