Linux / Arch / X86
File Age

File age measurements show the distribution of file ages (days since the first commit) and the recency of file updates (days since the latest commit).

Summary
  • Number of files: 1283
  • Daily file updates (only one update per file and date counted): 2657
  • First update: 2005-04-17
  • Latest update: 2022-01-18
  • Days between first and latest update: 6121 (874 weeks, estimated 4370 working days)
  • Active days (at least one file change): 5451
  • Data:
File Change History Overall
File Age Distribution Overall
Days since first update
  • There are 1,283 files with 303,053 lines of code in files.
    • 1,240 files that are 366+ days old (296,339 lines of code)
    • 28 files that are 181-365 days old (4,983 lines of code)
    • 13 files that are 91-180 days old (1,401 lines of code)
    • 2 files that are 31-90 days old (330 lines of code)
    • 0 files that are 1-30 days old (0 lines of code)
97% | 1% | <1% | <1% | 0%
Legend:
366+
181-365
91-180
31-90
1-30
Latest Change Distribution Overall
Days since last update
  • There are 1,283 files with 303,053 lines of code in files.
    • 481 files have been last changed 366+ days ago (31,273 lines of code)
    • 166 files have been last changed 181-365 days ago (25,152 lines of code)
    • 93 files have been last changed 91-180 days ago (24,757 lines of code)
    • 0 files have been last changed 31-90 days ago (0 lines of code)
    • 543 files have been last changed 1-30 days ago (221,871 lines of code)
10% | 8% | 8% | 0% | 73%
Legend:
366+
181-365
91-180
31-90
1-30
File Change History per File Extension
c, h, S, gitignore, sh, awk, txt, in, ld, pl
File Age Distribution per Extension
Days since first update
366+
181-365
91-180
31-90
1-30
c97% | 1% | <1% | <1% | 0%
h97% | 1% | 1% | 0% | 0%
S97% | 1% | 1% | 0% | 0%
pl100% | 0% | 0% | 0% | 0%
awk100% | 0% | 0% | 0% | 0%
ld100% | 0% | 0% | 0% | 0%
in100% | 0% | 0% | 0% | 0%
Latest Change Distribution per Extension
Days since last update
366+
181-365
91-180
31-90
1-30
c9% | 5% | 9% | 0% | 75%
h18% | 16% | 7% | 0% | 56%
S4% | 3% | <1% | 0% | 91%
awk9% | 83% | 0% | 0% | 6%
pl0% | 100% | 0% | 0% | 0%
ld0% | 100% | 0% | 0% | 0%
in0% | 0% | 0% | 0% | 100%
File Change History per Logical Decomposition
primary
primary (file age distribution)
Days since first update
366+
181-365
91-180
31-90
1-30
kernel97% | 2% | <1% | 0% | 0%
kvm98% | 1% | 0% | 0% | 0%
include98% | 1% | <1% | 0% | 0%
crypto95% | 2% | 1% | <1% | 0%
events97% | 2% | 0% | 0% | 0%
mm97% | 0% | 0% | 2% | 0%
math-emu100% | 0% | 0% | 0% | 0%
xen100% | 0% | 0% | 0% | 0%
boot98% | 1% | 0% | 0% | 0%
platform100% | 0% | 0% | 0% | 0%
pci100% | 0% | 0% | 0% | 0%
lib99% | <1% | 0% | 0% | 0%
entry100% | 0% | 0% | 0% | 0%
um100% | 0% | 0% | 0% | 0%
net100% | 0% | 0% | 0% | 0%
tools100% | 0% | 0% | 0% | 0%
realmode100% | 0% | 0% | 0% | 0%
hyperv57% | 27% | 15% | 0% | 0%
power100% | 0% | 0% | 0% | 0%
ia32100% | 0% | 0% | 0% | 0%
purgatory100% | 0% | 0% | 0% | 0%
video100% | 0% | 0% | 0% | 0%
primary (latest change distribution)
Days since last update
366+
181-365
91-180
31-90
1-30
include21% | 21% | 9% | 0% | 47%
kernel6% | 5% | 13% | 0% | 74%
boot48% | 15% | <1% | 0% | 35%
math-emu37% | 0% | 13% | 0% | 49%
mm16% | 1% | 6% | 0% | 75%
um43% | 9% | 4% | 0% | 43%
platform24% | 16% | 29% | 0% | 30%
events5% | <1% | 12% | 0% | 81%
pci25% | 8% | 12% | 0% | 53%
crypto1% | 20% | 1% | 0% | 76%
realmode62% | 4% | 18% | 0% | 14%
xen5% | 7% | 5% | 0% | 81%
lib6% | 2% | 5% | 0% | 85%
entry4% | 12% | 12% | 0% | 69%
power25% | 0% | 14% | 0% | 59%
kvm<1% | 1% | <1% | 0% | 98%
purgatory82% | 0% | 0% | 0% | 17%
tools8% | 23% | 11% | 0% | 56%
video100% | 0% | 0% | 0% | 0%
hyperv0% | 0% | 20% | 0% | 79%
net0% | 0% | 0% | 0% | 100%
ia320% | 0% | 0% | 0% | 100%
Oldest Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
63 5 1487 5294 92
irq.c
in pci
 1054 60 19 5291 454
134 4 29 5276 591
95 4 415 5276 451
setup.c
in kernel
 741 25 19 5267 1604
amd.c
in kernel/cpu
 700 30 19 5267 1276
direct.c
in pci
 226 9 1340 5267 145
fixup.c
in pci
 479 28 150 5260 488
common.c
in pci
 623 26 24 5257 737
acpi.c
in pci
 317 16 18 5236 682
i386.c
in pci
 252 11 344 5236 578
apm_32.c
in kernel
 1577 52 150 5229 670
common.c
in kernel/cpu
 1355 80 19 5229 1566
bugs.c
in kernel/cpu
 1296 61 19 5229 618
fpu_trig.c
in math-emu
 1253 26 150 5229 77
1181 42 19 5229 1163
boot.c
in kernel/acpi
 1170 54 19 5229 1160
reg_ld_str.c
in math-emu
 943 19 19 5229 79
intel.c
in kernel/cpu
 929 35 19 5229 1046
alternative.c
in kernel
 862 35 19 5229 804
S
head_64.S
in boot/compressed
 860 - 19 5229 651
setup.c
in xen
 640 27 24 5229 865
614 19 19 5229 484
vm86_32.c
in kernel
 589 18 24 5229 510
S
reg_round.S
in math-emu
 577 - 21 5229 52
S
header.S
in boot
 576 - 415 5229 459
generic.c
in kernel/cpu/mtrr
 560 28 150 5229 579
fpu_entry.c
in math-emu
 547 5 29 5229 221
540 19 19 5229 910
S
head_64.S
in kernel
 524 - 19 5229 758
process_64.c
in kernel
 522 26 19 5229 1162
S
head_32.S
in kernel
 508 - 19 5229 719
quirks.c
in kernel
 486 22 345 5229 495
errors.c
in math-emu
 437 18 415 5229 117
S
vmlinux.lds.S
in kernel
 424 - 21 5229 671
407 - 21 5229 157
404 14 19 5229 495
reg_compare.c
in math-emu
 392 16 1487 5229 59
time.c
in xen
 386 29 150 5229 629
S
reg_u_div.S
in math-emu
 376 - 21 5229 43
S
wm_sqrt.S
in math-emu
 372 - 415 5229 56
if.c
in kernel/cpu/mtrr
 371 4 607 5229 251
head64.c
in kernel
 371 18 24 5229 790
aperture_64.c
in kernel
 369 11 19 5229 427
359 - 21 5229 396
build.c
in boot/tools
 330 19 345 5229 295
pcbios.c
in pci
 320 7 415 5229 270
get_address.c
in math-emu
 305 3 1487 5229 109
302 12 415 5229 362
cpu.c
in power
 293 18 19 5229 505
Files Not Recently Changed (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
setup_arch.h
in include/asm
 1 - 2172 4754 22
asm-offsets.h
in include/asm
 1 - 2172 4673 25
exec.h
in include/asm
 1 - 2172 3599 17
genapic.h
in include/asm
 1 - 2172 4917 38
setup.h
in include/uapi/asm
 1 - 2172 3338 17
S
copy.S
in realmode/rm
 1 - 2172 3558 15
video-bios.c
in realmode/rm
 1 - 2172 3558 15
video-vga.c
in realmode/rm
 1 - 2172 3558 15
video-vesa.c
in realmode/rm
 1 - 2172 3558 15
S
bioscall.S
in realmode/rm
 1 - 2172 3558 15
regs.c
in realmode/rm
 1 - 2172 3558 15
video-mode.c
in realmode/rm
 1 - 2172 3558 15
version.h
in math-emu
 1 - 2172 5229 3
3 - 2172 4598 71
apic.h
in um/asm
 3 - 2172 3822 17
irq_vectors.h
in um/asm
 3 - 2172 3822 17
3 - 2172 3822 17
early_serial_console.c
in boot/compressed
 3 - 2172 4202 50
numachip.h
in include/asm/numachip
 5 - 2172 3345 27
syscalls_32.h
in um/shared/sysdep
 7 - 2172 3822 45
7 2 2172 3822 32
S
vdso-note.S
in um/vdso
 10 - 2172 3822 17
archparam.h
in um/asm
 10 - 2172 3822 17
faultinfo_32.h
in um/shared/sysdep
 12 - 2172 3822 28
faultinfo_64.h
in um/shared/sysdep
 12 - 2172 3822 28
checksum_64.h
in um/asm
 12 1 2172 3822 32
14 2 2172 3822 32
fault.c
in um
 17 1 2172 3822 43
mcontext.h
in um/shared/sysdep
 19 - 2172 3822 17
uv_irq.h
in include/asm/uv
 23 - 2172 4917 32
51 3 2172 3822 49
52 4 2172 5134 58
mm_context.h
in um/asm
 54 - 2172 3822 17
numachip_csr.h
in include/asm/numachip
 60 7 2172 3713 30
fbdev.c
in video
 25 1 2025 5229 58
ptrace_64.h
in um/shared/sysdep
 41 - 1875 3822 46
27 1 1738 3822 75
29 1 1738 3822 75
prctl.c
in um/os-Linux
 6 1 1682 3822 49
hw_breakpoint.h
in include/uapi/asm
 1 - 1487 3338 35
4 - 1487 4535 65
4 - 1487 3822 35
ce4100.h
in include/asm
 4 - 1487 3979 33
emergency-restart.h
in include/asm
 4 - 1487 4917 73
reboot_fixups.h
in include/asm
 4 - 1487 4917 33
sigcontext.h
in include/asm
 4 - 1487 4917 179
shmparam.h
in include/asm
 4 - 1487 4917 33
misc.h
in include/asm
 4 - 1487 3051 34
debugfs.h
in xen
 4 - 1487 4914 68
syscalls.h
in um/shared/sysdep
 5 - 1487 3822 64
Most Recently Created Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
62 4 21 43 3
268 16 24 59 2
ivm.c
in hyperv
 229 9 18 101 12
vortex.c
in kernel/cpu
 24 - 29 109 9
legacy.h
in kernel/fpu
 89 10 21 111 11
sched.h
in include/asm/fpu
 25 2 29 111 10
xstate.h
in kernel/fpu
 186 16 18 113 17
context.h
in kernel/fpu
 40 6 29 113 11
internal.h
in kernel/fpu
 19 2 29 113 11
cc_platform.c
in kernel
 48 4 18 147 15
extable_fixup_types.h
in include/asm
 47 - 21 148 12
433 - 19 169 19
142 6 19 169 8
amd-ibs.h
in include/asm
 103 - 19 169 8
sm4-avx.h
in crypto
 16 - 19 169 8
517 - 19 198 33
395 14 19 198 9
pc-conf-reg.h
in include/asm
 20 2 19 198 8
3 - 19 198 8
paging.h
in kvm/mmu
 10 - 19 224 16
pkru.h
in include/asm
 43 5 19 225 24
trace.c
in kernel
 184 4 19 226 18
svm_onhyperv.h
in kvm/svm
 90 8 19 245 23
56 4 18 245 12
svm_onhyperv.c
in kvm/svm
 26 1 19 245 10
23 2 19 245 10
fpu.h
in kvm
 124 10 19 253 10
sev.c
in kernel
 918 45 19 282 66
sev-shared.c
in kernel
 366 15 19 282 53
sev.c
in boot/compressed
 129 11 24 282 29
sev.h
in include/asm
 75 9 29 282 37
sev-common.h
in include/asm
 63 - 19 282 45
128 10 150 287 10
sgx.c
in kvm/vmx
 327 16 29 297 19
sgx.h
in kvm/vmx
 23 3 150 297 10
virt.c
in kernel/cpu/sgx
 239 13 29 321 31
sgx.h
in include/asm
 171 - 19 321 22
uncore_discovery.c
in events/intel
 473 28 19 323 17
uncore_discovery.h
in events/intel
 120 - 19 323 25
kfence.h
in include/asm
 39 2 19 342 33
softirq_stack.h
in include/asm
 8 - 275 358 12
irqdomain.c
in hyperv
 250 12 21 365 21
hv_proc.c
in hyperv
 163 3 150 365 20
kvm-x86-ops.h
in include/asm
 116 - 18 384 58
thermal.h
in include/asm
 12 2 150 392 28
59 - 275 394 10
camellia.h
in crypto
 47 4 275 394 10
44 6 275 394 10
serpent-avx.h
in crypto
 14 - 275 394 10
twofish.h
in crypto
 12 - 275 394 10
Most Recently Changed Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
resource.c
in kernel
 38 3 16 4067 83
S
entry_64.S
in entry
 1261 - 17 2437 641
S
entry_32.S
in entry
 1080 - 17 2437 467
dumpstack.c
in kernel
 285 19 17 4851 675
x86.c
in kvm
 9420 483 18 5218 2640
vmx.c
in kvm/vmx
 5709 278 18 1198 593
nested.c
in kvm/vmx
 4482 155 18 1211 498
emulate.c
in kvm
 4475 199 18 4558 1226
mmu.c
in kvm/mmu
 4170 245 18 806 365
svm.c
in kvm/svm
 3320 178 18 715 344
lapic.c
in kvm
 2132 142 18 5218 1513
sev.c
in kvm/svm
 2103 76 18 681 251
hyperv.c
in kvm
 1973 79 18 2407 534
trace.h
in kvm
 1343 - 18 4614 538
kvm_host.h
in include/asm
 1306 13 18 4917 1673
nested.c
in kvm/svm
 1048 51 18 685 236
xstate.c
in kernel/fpu
 978 56 18 2473 393
cpuid.c
in kvm
 923 24 18 3738 840
tdp_mmu.c
in kvm/mmu
 850 48 18 490 198
kvm.c
in kernel
 806 61 18 5095 952
paging_tmpl.h
in kvm/mmu
 728 21 18 805 196
xen.c
in kvm
 722 19 18 1331 59
avic.c
in kvm/svm
 695 35 18 674 131
process.c
in kernel
 630 50 18 5078 1262
i8254.c
in kvm
 555 26 18 5121 620
pmu_intel.c
in kvm/vmx
 552 27 18 1158 180
ioapic.c
in kvm
 551 28 18 5163 328
i8259.c
in kvm
 502 29 18 5163 458
core.c
in kernel/fpu
 468 38 18 2479 295
svm.h
in kvm/svm
 464 28 18 685 220
hyperv-tlfs.h
in include/asm
 431 - 18 1416 226
pmu.c
in kvm
 414 30 18 3738 341
kvm.h
in include/uapi/asm
 396 - 18 3338 336
vmx.h
in kvm/vmx
 377 9 18 1198 353
hv_init.c
in hyperv
 361 17 18 1841 391
cpufeatures.h
in include/asm
 360 - 18 2212 538
x86.h
in kvm
 359 44 18 4963 774
351 21 18 2632 236
mmutrace.h
in kvm/mmu
 333 - 18 591 62
capabilities.h
in kvm/vmx
 325 54 18 1198 146
322 3 18 715 64
mshyperv.c
in kernel/cpu
 318 19 18 4291 581
acpi.c
in pci
 317 16 18 5236 682
vmx_ops.h
in kvm/vmx
 276 26 18 498 39
pmu.c
in kvm/svm
 264 11 18 681 67
kvmclock.c
in kernel
 246 21 18 5102 695
types.h
in include/asm/fpu
 235 - 18 2479 187
spte.c
in kvm/mmu
 231 11 18 475 74
ivm.c
in hyperv
 229 9 18 101 12
mmu.h
in kvm
 219 16 18 5163 660