File: //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 : 31974 4 599 [ 2 2 2 1 1 0 1 1 2 1 0 1 1 3 ]
#1 : 32163 3 593 [ 3 2 1 1 1 0 0 1 1 0 1 1 1 3 ]
#2 : 32269 2 487 [ 1 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#3 : 32162 1 606 [ 0 1 0 0 0 1 0 1 1 0 1 1 1 3 ]
#4 : 32269 1 499 [ 1 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#5 : 32163 2 593 [ 1 1 0 0 0 1 0 1 1 0 1 1 1 3 ]
#6 : 24071 2 8687 [ 1 1 1 0 0 0 0 0 0 1 1 1 1 2 ]
#7 : 32164 3 596 [ 0 2 0 2 1 2 1 2 2 1 0 1 1 3 ]
#8 : 32267 1 501 [ 1 1 0 1 0 0 0 0 0 1 1 1 1 3 ]
#9 : 32163 2 593 [ 1 1 0 0 0 1 0 1 1 0 1 1 1 3 ]
#10 : 32269 2 489 [ 1 0 1 1 0 0 0 0 0 1 1 1 1 3 ]
#11 : 32267 1 487 [ 1 1 0 1 0 0 0 0 0 1 1 1 1 3 ]
#12 : 32270 3 486 [ 0 1 1 1 2 1 1 1 1 0 1 1 1 3 ]
#13 : 6678 2 486 [ 2 0 1 0 1 0 0 0 0 1 2 2 0 0 ]