Linux / Drivers / Misc
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 4,176 units with 97,215 lines of code in units (51.7% of code).
    • 64 very long units (22,890 lines of code)
    • 262 long units (17,792 lines of code)
    • 918 medium size units (28,606 lines of code)
    • 1,114 small units (16,528 lines of code)
    • 1,818 very small units (11,399 lines of code)
23% | 18% | 29% | 17% | 11%
Legend:
101+
51-100
21-50
11-20
1-10
Unit Size per Extension
101+
51-100
21-50
11-20
1-10
c23% | 18% | 29% | 16% | 11%
h0% | 0% | 0% | 22% | 77%
Unit Size per Logical Component
primary logical decomposition
101+
51-100
21-50
11-20
1-10
habanalabs45% | 18% | 20% | 9% | 4%
altera-stapl54% | 27% | 11% | 4% | 1%
bcm-vk30% | 14% | 32% | 11% | 10%
mei9% | 19% | 29% | 21% | 19%
ROOT3% | 19% | 35% | 23% | 17%
vmw_vmci8% | 20% | 44% | 17% | 8%
cardreader6% | 14% | 42% | 19% | 17%
genwqe9% | 30% | 29% | 17% | 13%
lis3lv02d22% | 17% | 19% | 19% | 22%
ti-st19% | 17% | 33% | 15% | 15%
eeprom7% | 21% | 39% | 21% | 10%
sgi-gru3% | 13% | 41% | 23% | 18%
cxl1% | 12% | 42% | 22% | 20%
echo43% | 0% | 9% | 30% | 16%
lkdtm0% | 19% | 21% | 37% | 22%
ocxl0% | 9% | 46% | 29% | 14%
ibmasm0% | 12% | 38% | 24% | 24%
c2port0% | 18% | 19% | 47% | 14%
cb7100% | 24% | 17% | 33% | 25%
uacce0% | 0% | 25% | 46% | 27%
sgi-xp0% | 0% | 61% | 29% | 8%
pvpanic0% | 0% | 23% | 45% | 30%
Alternative Visuals
Longest Units
Top 50 longest units
Unit# linesMcCabe index# params
3626 1 1
3358 2 1
3319 2 1
1380 1 1
1239 319 6
893 1 1
608 2 1
363 1 1
298 4 1
287 70 2
262 74 3
262 13 2
252 6 1
233 121 2
229 51 2
213 1 1
202 32 2
197 36 9
187 29 3
186 29 2
166 21 2
162 38 1
155 21 1
143 37 5
142 21 3
140 26 8
137 3 1
137 17 2
135 32 1
134 60 1
133 27 5
126 29 2
125 22 2
124 16 4
123 25 2
121 23 2
121 22 8
119 8 1
119 37 4
119 43 3
118 57 3
117 19 2
115 21 4
114 18 3
114 22 11
113 24 6
112 18 3
111 20 2
111 13 2
111 18 1