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Intro

For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.

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Duplication Overall

3% duplication:

212,288 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
7,193 duplicated lines

724 duplicates

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
bpf (<1%) --> trace (<1%)	137	2 file pairs	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 724 duplicates...

Size	#	Folders	Files	Lines	Code
51	x 2	trace trace	trace_eprobe.c trace_kprobe.c	375:474 (8%) 1219:1318 (4%)	view
23	x 2	bpf bpf	btf.c btf.c	2439:2474 (<1%) 2485:2524 (<1%)	view
20	x 2	dma dma	debug.c debug.c	1514:1539 (2%) 1546:1570 (2%)	view
18	x 2	ROOT ROOT	signal.c signal.c	3391:3408 (<1%) 3468:3485 (<1%)	view
18	x 2	rcu rcu	rcuscale.c refscale.c	801:823 (3%) 795:816 (3%)	view
18	x 2	irq irq	chip.c chip.c	696:724 (2%) 1256:1284 (2%)	view
17	x 2	trace trace	trace_output.c trace_output.c	71:93 (1%) 135:157 (1%)	view
17	x 2	bpf bpf	hashtab.c hashtab.c	1326:1347 (1%) 1362:1383 (1%)	view
17	x 2	bpf bpf	hashtab.c hashtab.c	1189:1212 (1%) 1244:1267 (1%)	view
16	x 2	ROOT ROOT	exit.c exit.c	1635:1653 (1%) 1776:1796 (1%)	view
16	x 2	bpf bpf	btf.c btf.c	2898:2919 (<1%) 3257:3278 (<1%)	view
16	x 2	trace trace	trace_events_trigger.c trace_events_trigger.c	1022:1048 (1%) 1808:1834 (1%)	view
15	x 2	power power	swap.c swap.c	741:764 (1%) 1233:1256 (1%)	view
15	x 2	cgroup cgroup	debug.c debug.c	279:299 (6%) 326:346 (6%)	view
15	x 2	trace trace	trace_events_trigger.c trace_events_trigger.c	564:585 (1%) 1891:1912 (1%)	view
15	x 2	ROOT ROOT	sysctl-test.c sysctl-test.c	307:322 (6%) 345:360 (6%)	view
14	x 2	bpf bpf	syscall.c syscall.c	1082:1102 (<1%) 1561:1581 (<1%)	view
14	x 2	bpf bpf	btf.c btf.c	2273:2290 (<1%) 2298:2315 (<1%)	view
14	x 2	trace trace	tracing_map.c tracing_map.c	856:873 (2%) 887:905 (2%)	view
14	x 2	trace trace	trace_kprobe.c trace_kprobe.c	990:1009 (1%) 1041:1060 (1%)	view
14	x 2	power power	swap.c swap.c	708:725 (1%) 1198:1215 (1%)	view
14	x 2	trace trace	trace_eprobe.c trace_kprobe.c	692:709 (2%) 352:369 (1%)	view
14	x 2	ROOT ROOT	kexec_core.c kexec_core.c	783:798 (2%) 852:871 (2%)	view
14	x 2	time time	time.c time.c	200:220 (3%) 244:264 (3%)	view
14	x 2	bpf bpf	bpf_task_storage.c bpf_task_storage.c	155:175 (6%) 201:221 (6%)	view
14	x 2	trace trace	trace_events_synth.c trace_events_synth.c	1682:1699 (1%) 1775:1792 (1%)	view
13	x 2	bpf bpf	hashtab.c hashtab.c	1126:1144 (<1%) 1249:1267 (<1%)	view
13	x 2	sched sched	core.c core.c	10641:10658 (<1%) 10839:10856 (<1%)	view
13	x 2	trace trace	trace_functions.c trace_functions.c	220:239 (2%) 331:350 (2%)	view
13	x 2	trace trace	trace_sched_wakeup.c trace_sched_wakeup.c	743:757 (2%) 763:777 (2%)	view
13	x 2	trace trace	trace_sched_wakeup.c trace_sched_wakeup.c	743:757 (2%) 783:797 (2%)	view
13	x 2	bpf trace	helpers.c bpf_trace.c	1357:1369 (1%) 1144:1156 (<1%)	view
13	x 2	bpf bpf	hashtab.c hashtab.c	1126:1144 (<1%) 1194:1212 (<1%)	view
13	x 2	trace trace	trace_kprobe.c trace_uprobe.c	1187:1205 (1%) 824:842 (1%)	view
13	x 2	trace trace	trace_sched_wakeup.c trace_sched_wakeup.c	763:777 (2%) 783:797 (2%)	view
13	x 2	futex futex	syscalls.c syscalls.c	54:70 (6%) 323:339 (6%)	view
13	x 2	trace trace	trace_selftest.c trace_selftest.c	941:963 (1%) 1003:1025 (1%)	view
13	x 2	ROOT ROOT	kexec_core.c kexec_core.c	833:848 (2%) 901:916 (2%)	view
12	x 2	ROOT ROOT	sysctl-test.c sysctl-test.c	117:129 (4%) 151:163 (4%)	view
12	x 2	ROOT ROOT	ptrace.c ptrace.c	1285:1306 (1%) 1430:1451 (1%)	view
12	x 2	ROOT ROOT	sys.c sys.c	240:252 (<1%) 308:320 (<1%)	view
12	x 2	sched sched	debug.c stats.c	874:891 (1%) 189:206 (9%)	view
12	x 2	bpf bpf	syscall.c syscall.c	2098:2109 (<1%) 3145:3156 (<1%)	view
12	x 2	time time	posix-timers.c posix-timers.c	1305:1316 (1%) 1354:1365 (1%)	view
12	x 2	trace trace	trace_kprobe.c trace_uprobe.c	1129:1144 (<1%) 772:787 (1%)	view
12	x 2	time time	posix-timers.c posix-timers.c	1322:1333 (1%) 1371:1382 (1%)	view
12	x 2	irq irq	chip.c chip.c	692:713 (1%) 1200:1221 (1%)	view
11	x 2	ROOT ROOT	tracepoint.c tracepoint.c	371:387 (2%) 444:459 (2%)	view
11	x 2	bpf bpf	percpu_freelist.c percpu_freelist.c	134:145 (7%) 168:180 (7%)	view
11	x 2	time time	posix-timers.c posix-timers.c	1355:1365 (1%) 1372:1382 (1%)	view

Duplicated Units

The list of top 11 duplicated units.

See data for all 11 unit duplicates...

Size	#	Folders	Files	Lines	Code
23	x 2	locking locking	lockdep.c lockdep.c	5056:5081 5746:5771	view
20	x 2	bpf bpf	btf.c btf.c	2897:2920 3256:3279	view
12	x 2	locking locking	locktorture.c locktorture.c	155:171 508:525	view
11	x 2	time time	posix-clock.c posix-clock.c	72:87 90:105	view
10	x 2	trace trace	trace_irqsoff.c trace_sched_wakeup.c	308:318 350:360	view
9	x 2	trace trace	trace_branch.c trace_branch.c	236:245 396:405	view
9	x 2	locking locking	rtmutex_api.c rtmutex_api.c	118:130 590:602	view
8	x 2	bpf bpf	btf.c btf.c	1857:1865 1867:1875	view
7	x 2	trace trace	trace_kprobe.c trace_uprobe.c	1197:1206 834:843	view
6	x 2	locking locking	lockdep.c lockdep.c	2673:2681 2690:2699	view
6	x 2	sched sched	deadline.c rt.c	2023:2029 1811:1818	view