Linux / Drivers / Crypto
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 5,907 units with 115,926 lines of code in units (65.0% of code).
    • 76 very long units (10,809 lines of code)
    • 343 long units (23,246 lines of code)
    • 1,355 medium size units (42,375 lines of code)
    • 1,591 small units (23,617 lines of code)
    • 2,542 very small units (15,879 lines of code)
9% | 20% | 36% | 20% | 13%
Legend:
101+
51-100
21-50
11-20
1-10
Unit Size per Extension
101+
51-100
21-50
11-20
1-10
c8% | 20% | 37% | 20% | 12%
pl74% | 6% | 2% | 4% | 11%
h0% | 0% | 13% | 19% | 67%
Unit Size per Logical Component
primary logical decomposition
101+
51-100
21-50
11-20
1-10
ROOT6% | 19% | 37% | 21% | 14%
allwinner33% | 17% | 26% | 13% | 9%
qat10% | 18% | 35% | 22% | 13%
bcm27% | 20% | 33% | 10% | 8%
inside-secure17% | 11% | 29% | 20% | 20%
vmx48% | 4% | 15% | 19% | 11%
caam6% | 24% | 41% | 17% | 10%
ccree9% | 38% | 30% | 13% | 7%
marvell5% | 23% | 33% | 21% | 15%
ccp8% | 12% | 44% | 20% | 13%
axis37% | 6% | 26% | 16% | 13%
amcc17% | 8% | 28% | 30% | 15%
nx7% | 40% | 29% | 14% | 7%
cavium3% | 19% | 32% | 23% | 20%
chelsio6% | 22% | 46% | 18% | 5%
amlogic31% | 11% | 27% | 25% | 3%
gemini17% | 29% | 30% | 13% | 8%
hisilicon1% | 5% | 49% | 27% | 16%
ux5004% | 20% | 49% | 15% | 10%
virtio12% | 14% | 36% | 21% | 14%
keembay0% | 29% | 28% | 23% | 18%
qce0% | 34% | 34% | 20% | 10%
stm320% | 22% | 34% | 21% | 20%
rockchip0% | 16% | 30% | 26% | 25%
xilinx0% | 31% | 51% | 3% | 12%
Alternative Visuals
Longest Units
Top 50 longest units
Unit# linesMcCabe index# params
364 1 0
338 1 0
262 47 2
229 37 3
219 35 1
210 53 1
201 46 1
180 32 11
178 26 1
177 35 1
176 42 1
176 24 2
173 41 1
171 32 11
169 31 1
164 18 8
163 21 1
162 20 1
160 28 1
160 32 1
158 10 3
156 28 4
156 58 2
154 21 1
153 22 1
153 25 6
146 20 2
139 44 2
139 27 2
137 29 1
136 28 1
132 26 1
131 6 2
130 16 1
128 19 6
127 28 1
127 24 1
126 27 1
124 44 4
124 25 1
123 17 1
122 20 2
122 21 2
121 20 2
121 21 1
121 32 2
121 27 1
120 10 8
118 18 2
117 21 2