Linux / Kernel
File Size

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

Intro
  • File size measurements show the distribution of size of files.
  • Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
  • It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.
Learn more...
File Size Overall
  • There are 461 files with 266,447 lines of code.
    • 63 very long files (157,430 lines of code)
    • 79 long files (54,896 lines of code)
    • 115 medium size files (36,234 lines of codeclsfd_ftr_w_mp_ins)
    • 81 small files (12,331 lines of code)
    • 123 very small files (5,556 lines of code)
59% | 20% | 13% | 4% | 2%
Legend:
1001+
501-1000
201-500
101-200
1-100


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File Size per Extension
1001+
501-1000
201-500
101-200
1-100
c60% | 20% | 13% | 4% | 1%
h37% | 14% | 22% | 13% | 12%
S0% | 0% | 0% | 0% | 100%
File Size per Logical Decomposition
primary
1001+
501-1000
201-500
101-200
1-100
trace75% | 13% | 8% | 1% | 1%
ROOT51% | 24% | 15% | 5% | 1%
bpf71% | 11% | 13% | 2% | 1%
sched75% | 10% | 5% | 7% | 1%
events88% | 4% | 3% | 3% | 0%
rcu55% | 31% | 9% | 2% | 1%
cgroup67% | 9% | 18% | 5% | 0%
locking35% | 37% | 11% | 9% | 5%
time28% | 46% | 16% | 3% | 4%
power43% | 23% | 27% | 2% | 2%
irq31% | 24% | 29% | 11% | 3%
printk66% | 20% | 0% | 8% | 4%
debug37% | 39% | 12% | 10% | <1%
dma26% | 28% | 36% | 0% | 8%
futex0% | 48% | 44% | 7% | 0%
livepatch0% | 50% | 20% | 20% | 8%
kcsan0% | 44% | 48% | 0% | 6%
gcov0% | 47% | 38% | 0% | 13%
entry0% | 0% | 73% | 0% | 26%
Longest Files (Top 50)
File# lines# units
10505 332
core.c
in events
 8709 386
trace.c
in trace
 7015 270
fair.c
in sched
 6501 347
core.c
in sched
 6161 366
ftrace.c
in trace
 5243 187
btf.c
in bpf
 5032 179
5009 155
cgroup.c
in cgroup
 4080 179
lockdep.c
in locking
 4016 191
syscall.c
in bpf
 3851 130
module.c
in root
 3482 199
3385 117
3199 176
signal.c
in root
 3070 132
sysctl.c
in root
 2888 65
2819 82
2745 81
tree.c
in rcu
 2712 126
printk.c
in printk
 2218 110
auditsc.c
in root
 2199 77
fork.c
in root
 2169 81
kdb_main.c
in debug/kdb
 2136 57
sys.c
in root
 2090 38
cpuset.c
in cgroup
 2075 92
kprobes.c
in root
 1959 118
sched.h
in sched
 1944 136
rt.c
in sched
 1901 116
core.c
in bpf
 1828 73
hashtab.c
in bpf
 1827 63
cpu.c
in root
 1731 110
bpf_trace.c
in trace
 1721 28
snapshot.c
in power
 1687 100
deadline.c
in sched
 1686 113
manage.c
in irq
 1614 79
audit.c
in root
 1579 73
uprobes.c
in events
 1576 72
seccomp.c
in root
 1572 63
1562 61
1526 59
topology.c
in sched
 1514 53
1512 55
cgroup.c
in bpf
 1507 53
blktrace.c
in trace
 1442 87
1360 75
trace.h
in trace
 1347 56
1328 80
1264 42
1263 56
hrtimer.c
in time
 1258 78
Files With Most Units (Top 50)
File# lines# units
core.c
in events
 8709 386
core.c
in sched
 6161 366
fair.c
in sched
 6501 347
10505 332
trace.c
in trace
 7015 270
module.c
in root
 3482 199
lockdep.c
in locking
 4016 191
ftrace.c
in trace
 5243 187
cgroup.c
in cgroup
 4080 179
btf.c
in bpf
 5032 179
3199 176
5009 155
sched.h
in sched
 1944 136
signal.c
in root
 3070 132
syscall.c
in bpf
 3851 130
tree.c
in rcu
 2712 126
kprobes.c
in root
 1959 118
3385 117
rt.c
in sched
 1901 116
deadline.c
in sched
 1686 113
cpu.c
in root
 1731 110
printk.c
in printk
 2218 110
snapshot.c
in power
 1687 100
cpuset.c
in cgroup
 2075 92
timer.c
in time
 1053 90
blktrace.c
in trace
 1442 87
2819 82
fork.c
in root
 2169 81
2745 81
1328 80
manage.c
in irq
 1614 79
hrtimer.c
in time
 1258 78
auditsc.c
in root
 2199 77
1360 75
audit.c
in root
 1579 73
core.c
in bpf
 1828 73
uprobes.c
in events
 1576 72
863 71
tasks.h
in rcu
 1032 68
1024 66
sysctl.c
in root
 2888 65
chip.c
in irq
 911 65
rwsem.c
in locking
 917 64
seccomp.c
in root
 1572 63
hashtab.c
in bpf
 1827 63
1562 61
915 61
softirq.c
in root
 629 60
1526 59
1218 59
Files With Long Lines (Top 19)

There are 19 files with lines longer than 120 characters. In total, there are 35 long lines.

File# lines# units# long lines
568 10 5
854 57 4
tasks.h
in rcu
 1032 68 3
2745 81 3
kprobes.c
in root
 1959 118 3
1328 80 2
673 31 2
kmod.c
in root
 106 3 2
core.c
in kcsan
 761 34 1
5009 155 1
locktorture.c
in locking
 866 49 1
rwsem.c
in locking
 917 64 1
fair.c
in sched
 6501 347 1
stats.h
in sched
 195 15 1
664 30 1
tree.c
in rcu
 2712 126 1
debug.c
in dma
 1109 50 1
10505 332 1
smp.c
in root
 776 42 1