Linux / Security
Unit Size

The distribution of size of units (measured in lines of code).

Intro
  • Unit size measurements show the distribution of size of units of code (methods, functions...).
  • Units are classified in four categories based on their size (lines of code): 1-20 (small units), 20-50 (medium size units), 51-100 (long units), 101+ (very long units).
  • You should aim at keeping units small (< 20 lines). Long units may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.
Learn more...
Unit Size Overall
  • There are 2,828 units with 53,075 lines of code in units (75.1% of code).
    • 35 very long units (5,447 lines of code)
    • 142 long units (9,810 lines of code)
    • 617 medium size units (19,394 lines of code)
    • 697 small units (10,145 lines of code)
    • 1,337 very small units (8,279 lines of code)
10% | 18% | 36% | 19% | 15%
Legend:
101+
51-100
21-50
11-20
1-10
Unit Size per Extension
101+
51-100
21-50
11-20
1-10
c10% | 18% | 37% | 19% | 14%
h0% | 0% | 7% | 13% | 78%
Unit Size per Logical Component
primary logical decomposition
101+
51-100
21-50
11-20
1-10
selinux11% | 22% | 36% | 17% | 12%
tomoyo17% | 18% | 35% | 15% | 13%
keys12% | 23% | 40% | 15% | 9%
integrity11% | 18% | 40% | 17% | 12%
ROOT9% | 11% | 11% | 23% | 43%
smack7% | 10% | 44% | 21% | 15%
apparmor3% | 13% | 36% | 27% | 18%
landlock0% | 14% | 29% | 21% | 34%
safesetid0% | 19% | 52% | 20% | 8%
yama0% | 0% | 64% | 29% | 6%
loadpin0% | 0% | 69% | 12% | 18%
lockdown0% | 0% | 23% | 59% | 17%
bpf0% | 0% | 0% | 0% | 100%
Alternative Visuals
Longest Units
Top 50 longest units
Unit# linesMcCabe index# params
419 142 2
339 144 2
262 64 2
205 35 2
186 63 4
183 44 2
178 39 4
178 54 2
174 42 3
170 37 5
157 44 3
153 36 8
150 69 3
148 35 4
144 29 4
142 29 1
142 59 7
137 33 1
136 38 3
135 30 2
133 29 7
129 25 2
125 37 3
120 30 2
119 41 3
116 31 3
114 24 4
112 28 2
110 21 4
107 47 4
107 30 2
106 14 2
104 30 5
104 25 3
103 31 4
99 27 5
99 26 2
98 25 2
98 15 5
95 19 2
94 49 8
93 27 3
92 16 8
91 18 2
90 18 3
90 11 11
89 16 2
89 18 1
89 22 3
89 21 5