apple / darwin-xnu
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 2,877 files with 1,126,517 lines of code.
    • 256 very long files (700,104 lines of code)
    • 259 long files (181,249 lines of code)
    • 423 medium size files (139,007 lines of codeclsfd_ftr_w_mp_ins)
    • 379 small files (55,019 lines of code)
    • 1,560 very small files (51,138 lines of code)
62% | 16% | 12% | 4% | 4%
Legend:
1001+
501-1000
201-500
101-200
1-100


explore: zoomable circles | sunburst | 3D view
File Size per Extension
1001+
501-1000
201-500
101-200
1-100
c71% | 15% | 9% | 2% | 1%
cpp74% | 11% | 10% | 2% | 1%
h24% | 20% | 22% | 14% | 18%
py49% | 27% | 10% | 7% | 4%
s30% | 14% | 39% | 11% | 4%
y59% | 28% | 12% | 0% | 0%
d0% | 0% | 35% | 43% | 20%
lua0% | 0% | 81% | 15% | 3%
cmd0% | 0% | 100% | 0% | 0%
m0% | 0% | 43% | 30% | 26%
pl0% | 0% | 65% | 20% | 14%
cocci0% | 0% | 0% | 74% | 25%
l0% | 0% | 0% | 100% | 0%
awk0% | 0% | 0% | 0% | 100%
File Size per Logical Decomposition
primary
1001+
501-1000
201-500
101-200
1-100
bsd70% | 14% | 9% | 2% | 3%
osfmk54% | 19% | 15% | 5% | 4%
iokit63% | 11% | 13% | 6% | 4%
EXTERNAL_HEADERS75% | 3% | 8% | 6% | 5%
libkern40% | 17% | 23% | 9% | 9%
tools46% | 26% | 13% | 9% | 4%
security61% | 6% | 13% | 13% | 5%
pexpert43% | 10% | 26% | 9% | 9%
libsyscall11% | 15% | 16% | 17% | 38%
san22% | 21% | 37% | 17% | 2%
libkdd0% | 68% | 15% | 5% | 10%
SETUP0% | 47% | 15% | 30% | 6%
libsa0% | 96% | 0% | 0% | 3%
makedefs0% | 0% | 100% | 0% | 0%
config0% | 0% | 0% | 88% | 11%
Longest Files (Top 50)
File# lines# units
AvailabilityInternal.h
in EXTERNAL_HEADERS
 23276 -
vm_map.c
in osfmk/vm
 14541 3
dtrace.c
in bsd/dev/dtrace
 12340 5
pmap.c
in osfmk/arm
 11580 5
OSKext.cpp
in libkern/c++
 11318 -
vfs_syscalls.c
in bsd/vfs
 9280 15
IOPMrootDomain.cpp
in iokit/Kernel
 9241 -
pf.c
in bsd/net
 9152 2
key.c
in bsd/netkey
 7951 3
dlil.c
in bsd/net
 7939 3
vfs_subr.c
in bsd/vfs
 7577 2
nfs4_vnops.c
in bsd/nfs
 7459 -
vm_pageout.c
in osfmk/vm
 7277 -
nfs_vnops.c
in bsd/nfs
 7018 -
vm_resident.c
in osfmk/vm
 6855 1
IOService.cpp
in iokit/Kernel
 6651 -
if_bridge.c
in bsd/net
 6546 2
uipc_mbuf.c
in bsd/kern
 6243 1
IOServicePM.cpp
in iokit/Kernel
 6127 -
zalloc.c
in osfmk/kern
 5974 -
kern_event.c
in bsd/kern
 5863 6
task.c
in osfmk/kern
 5830 7
necp_client.c
in bsd/net
 5621 2
uipc_socket.c
in bsd/kern
 5612 1
content_filter.c
in bsd/net
 5584 3
nfs_socket.c
in bsd/nfs
 5553 -
nfs_vfsops.c
in bsd/nfs
 5493 -
GearImage.h
in pexpert/pexpert
 5389 -
kern_memorystatus.c
in bsd/kern
 5358 3
IOUserClient.cpp
in iokit/Kernel
 5222 -
vm_object.c
in osfmk/vm
 5125 3
vm_fault.c
in osfmk/vm
 4897 2
mptcp_subr.c
in bsd/netinet
 4793 2
IOMemoryDescriptor.cpp
in iokit/Kernel
 4787 -
kern_exec.c
in bsd/kern
 4523 2
if.c
in bsd/net
 4462 16
vfs_cluster.c
in bsd/vfs
 4445 2
tcp_input.c
in bsd/netinet
 4303 1
sched_prim.c
in osfmk/kern
 4256 1
kpi_vfs.c
in bsd/vfs
 4239 1
ntstat.c
in bsd/net
 4222 1
kern_sysctl.c
in bsd/kern
 4218 2
if_bond.c
in bsd/net
 4130 2
pf_ioctl.c
in bsd/net
 4093 3
ipc_kmsg.c
in osfmk/ipc
 4065 2
dis_tables.c
in bsd/dev/i386
 4061 -
nfs_serv.c
in bsd/nfs
 4004 -
ipsec.c
in bsd/netinet6
 3999 1
IOUserServer.cpp
in iokit/Kernel
 3935 -
memory.py
in tools/lldbmacros
 3659 189
Files With Most Units (Top 20)
File# lines# units
memory.py
in tools/lldbmacros
 3659 189
process.py
in tools/lldbmacros
 1521 92
ipc.py
in tools/lldbmacros
 1387 83
kcdata.py
in tools/lldbmacros
 1647 80
net.py
in tools/lldbmacros
 1743 78
cvalue.py
in tools/lldbmacros/core
 377 72
ioreg.py
in tools/lldbmacros
 1049 68
ccmode.h
in EXTERNAL_HEADERS/corecrypto
 431 53
skywalk.py
in tools/lldbmacros
 548 43
pmap.py
in tools/lldbmacros
 1041 42
operating_system.py
in tools/lldbmacros/core
 702 40
xnu.py
in tools/lldbmacros
 914 38
scheduler.py
in tools/lldbmacros
 930 37
parse_ipc_trace.py
in tools/trace
 703 35
utils.py
in tools/lldbmacros
 285 31
waitq.py
in tools/lldbmacros
 903 30
kernelcore.py
in tools/lldbmacros/core
 420 29
cc_priv.h
in EXTERNAL_HEADERS/corecrypto
 469 27
mbufs.py
in tools/lldbmacros
 615 27
standard.py
in tools/lldbmacros/core
 180 24
Files With Long Lines (Top 20)

There are 572 files with lines longer than 120 characters. In total, there are 12065 long lines.

File# lines# units# long lines
AvailabilityInternal.h
in EXTERNAL_HEADERS
 23276 - 5871
vfs_unicode_data.h
in bsd/vfs
 1078 - 713
AvailabilityMacros.h
in EXTERNAL_HEADERS
 2029 - 513
kern_memorystatus.c
in bsd/kern
 5358 3 156
memory.py
in tools/lldbmacros
 3659 189 150
necp_client.c
in bsd/net
 5621 2 129
AppleBoot.h
in pexpert/pexpert
 135 - 128
kern_sysctl.c
in bsd/kern
 4218 2 124
sched_clutch.c
in osfmk/kern
 2805 - 116
kcdata.py
in tools/lldbmacros
 1647 80 97
kern_stackshot.c
in osfmk/kern
 2409 1 90
operating_system.py
in tools/lldbmacros/core
 702 40 86
kern_mib.c
in bsd/kern
 733 - 85
pmap.c
in osfmk/arm
 11580 5 84
kern_memorystatus_freeze.c
in bsd/kern
 1628 - 66
vfs_attrlist.c
in bsd/vfs
 3326 1 61
vm_unix.c
in bsd/vm
 2716 1 61
vm_map.c
in osfmk/vm
 14541 3 57
vm_compressor.c
in osfmk/vm
 3453 - 56
scheduler.py
in tools/lldbmacros
 930 37 55