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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.

Learn more...

Duplication Overall

13% duplication:

204,247 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
26,775 duplicated lines

5,355 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
mach-mmp (2%) --> mach-pxa (<1%)	135	3 file pairs	details...
mach-dove (9%) --> mach-mv78xx0 (9%)	124	1 file pair	details...
mach-omap1 (<1%) --> mach-omap2 (<1%)	104	5 file pairs	details...
mach-pxa (<1%) --> mach-sa1100 (1%)	100	10 file pairs	details...
mach-davinci (<1%) --> mach-omap1 (<1%)	83	7 file pairs	details...
mach-exynos (2%) --> mach-omap2 (<1%)	60	1 file pair	details...
mach-exynos (2%) --> mach-imx (<1%)	58	1 file pair	details...
mach-exynos (2%) --> plat-versatile (28%)	58	2 file pairs	details...
mach-imx (<1%) --> mach-omap2 (<1%)	58	1 file pair	details...

Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 5,355 duplicates...

Size	#	Folders	Files	Lines	Code
187	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	797:983 (9%) 1259:1445 (9%)	view
129	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	543:671 (6%) 855:983 (6%)	view
129	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	543:671 (6%) 1317:1445 (6%)	view
108	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	289:396 (5%) 1048:1155 (5%)	view
108	x 2	mach-spear mach-spear	spear300.c spear6xx.c	72:179 (59%) 117:224 (30%)	view
61	x 2	mach-pxa mach-pxa	stargate2.c stargate2.c	469:529 (8%) 849:909 (8%)	view
60	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	673:732 (2%) 985:1044 (2%)	view
60	x 2	mach-spear mach-spear	spear300.c spear310.c	25:84 (32%) 32:91 (27%)	view
58	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	987:1044 (2%) 1449:1506 (2%)	view
58	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	400:457 (2%) 1159:1216 (2%)	view
58	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	675:732 (2%) 1449:1506 (2%)	view
57	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	485:541 (2%) 1259:1315 (2%)	view
57	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	485:541 (2%) 797:853 (2%)	view
55	x 2	mach-pxa mach-pxa	corgi.c poodle.c	626:693 (9%) 341:408 (18%)	view
48	x 2	mach-davinci mach-davinci	board-da850-evm.c pdata-quirks.c	1227:1284 (4%) 25:82 (31%)	view
46	x 2	mach-davinci mach-davinci	board-da850-evm.c pdata-quirks.c	1311:1362 (4%) 127:178 (30%)	view
46	x 2	mach-omap1 mach-omap1	board-fsample.c board-perseus2.c	71:118 (20%) 38:85 (21%)	view
44	x 2	mach-orion5x mach-orion5x	board-rd88f5182.c rd88f5182-setup.c	40:108 (91%) 111:179 (30%)	view
43	x 2	mach-omap2 mach-omap2	S sram242x.S sram243x.S	47:96 (15%) 47:96 (15%)	view
43	x 2	mach-omap1 mach-omap1	board-fsample.c board-perseus2.c	129:185 (19%) 87:143 (20%)	view
43	x 2	mach-dove mach-mv78xx0	pcie.c pcie.c	79:154 (34%) 123:198 (26%)	view
42	x 2	mach-spear mach-spear	spear300.c spear310.c	140:181 (22%) 147:188 (19%)	view
41	x 2	mach-omap1 mach-omap1	board-fsample.c board-perseus2.c	190:234 (18%) 148:192 (19%)	view
41	x 2	mach-davinci mach-davinci	board-dm355-evm.c board-dm365-evm.c	200:255 (14%) 380:435 (7%)	view
40	x 2	mach-spear mach-spear	spear310.c spear6xx.c	147:186 (18%) 185:224 (11%)	view
39	x 2	mm mm	S proc-arm1020.S proc-arm1020e.S	11:56 (8%) 11:56 (8%)	view
39	x 2	mm mm	S proc-arm1020e.S proc-arm1022.S	11:56 (8%) 11:56 (9%)	view
39	x 2	mm mm	S proc-arm1022.S proc-arm1026.S	11:56 (9%) 11:56 (9%)	view
39	x 2	mm mm	S proc-arm1020e.S proc-arm1026.S	11:56 (8%) 11:56 (9%)	view
39	x 2	mm mm	S proc-arm1020.S proc-arm1026.S	11:56 (8%) 11:56 (9%)	view
39	x 2	mm mm	S proc-arm1020.S proc-arm1022.S	11:56 (8%) 11:56 (9%)	view
36	x 2	mach-omap1 mach-omap1	board-h2.c board-h3.c	57:92 (12%) 59:94 (11%)	view
36	x 2	mach-davinci mach-davinci	dm365.c dm646x.c	489:533 (4%) 244:288 (7%)	view
35	x 2	mach-spear mach-spear	spear300.c spear6xx.c	36:70 (19%) 81:115 (9%)	view
35	x 2	mm mm	S proc-arm925.S proc-arm926.S	190:225 (7%) 153:188 (7%)	view
35	x 2	mach-spear mach-spear	spear310.c spear6xx.c	43:77 (16%) 81:115 (9%)	view
34	x 2	crypto crypto	S curve25519-core.S curve25519-core.S	1703:1736 (1%) 1894:1927 (1%)	view
34	x 2	mach-davinci mach-davinci	board-da850-evm.c board-omapl138-hawk.c	1155:1198 (3%) 79:122 (11%)	view
32	x 2	mach-davinci mach-davinci	board-dm355-evm.c board-dm355-leopard.c	48:85 (11%) 42:79 (19%)	view
31	x 2	crypto crypto	aes-ce-glue.c aes-ce-glue.c	446:485 (6%) 518:557 (6%)	view
31	x 2	mm mm	S proc-arm926.S proc-arm946.S	157:188 (6%) 135:166 (8%)	view
31	x 2	lib lib	S ashldi3.S ashrdi3.S	1:38 (70%) 1:38 (70%)	view
31	x 2	lib lib	S ashrdi3.S lshrdi3.S	1:38 (70%) 1:38 (70%)	view
31	x 2	lib lib	S ashldi3.S lshrdi3.S	1:38 (70%) 1:38 (70%)	view
31	x 2	mm mm	S proc-arm925.S proc-arm946.S	194:225 (6%) 135:166 (8%)	view
30	x 2	mach-pxa mach-pxa	palmtreo.c palmtreo.c	169:202 (8%) 228:261 (8%)	view
29	x 2	mach-pxa mach-pxa	littleton.c zylonite.c	299:332 (9%) 364:397 (9%)	view
29	x 2	mach-s3c mach-s3c	mach-mini6410.c mach-real6410.c	52:80 (11%) 51:79 (13%)	view
29	x 2	mach-spear mach-spear	spear300.c spear320.c	56:84 (15%) 64:92 (13%)	view
29	x 2	mach-mmp mach-mmp	brownstone.c jasper.c	36:70 (17%) 33:67 (23%)	view

Duplicated Units

The list of top 42 duplicated units.

See data for all 42 unit duplicates...

Size	#	Folders	Files	Lines	Code
32	x 2	nwfpe nwfpe	softfloat.c softfloat.c	1680:1714 1753:1786	view
27	x 2	mach-orion5x mach-orion5x	board-rd88f5182.c rd88f5182-setup.c	40:72 111:143	view
24	x 2	mach-sunxi mach-sunxi	platsmp.c platsmp.c	40:69 125:154	view
16	x 2	mach-orion5x mach-orion5x	kurobox_pro-setup.c terastation_pro2-setup.c	186:207 161:182	view
16	x 2	mach-orion5x mach-orion5x	board-rd88f5182.c rd88f5182-setup.c	74:98 145:169	view
15	x 3	mach-omap2 mach-imx mach-exynos	omap-wakeupgen.c gpc.c suspend.c	487:506 172:191 136:155	view
15	x 2	mach-mv78xx0 mach-dove	pcie.c pcie.c	140:158 96:114	view
13	x 2	probes/kprobes probes/kprobes	test-core.c test-core.c	935:948 952:965	view
13	x 2	mach-mv78xx0 mach-dove	pcie.c pcie.c	160:176 116:132	view
13	x 2	kernel kernel	pj4-cp0.c xscale-cp0.c	19:43 58:82	view
12	x 2	mm mm	cache-xsc3l2.c cache-xsc3l2.c	41:56 151:166	view
12	x 2	mm mm	cache-feroceon-l2.c cache-feroceon-l2.c	73:92 104:123	view
11	x 2	vfp vfp	vfp.h vfp.h	44:55 57:68	view
11	x 2	mm mm	copypage-xscale.c copypage-v4mc.c	84:101 64:81	view
11	x 2	kernel kernel	perf_event_v7.c perf_event_v7.c	1984:1995 1997:2008	view
10	x 2	include/asm include/asm	irqflags.h irqflags.h	90:100 106:116	view
10	x 3	mach-mv78xx0 mach-orion5x mach-dove	pcie.c pci.c pcie.c	183:197 518:532 139:153	view
10	x 2	mach-cns3xxx mach-cns3xxx	core.c cns3420vb.c	298:317 126:145	view
10	x 2	mach-s3c mach-s3c	mach-anw6410.c mach-smartq.c	82:96 269:283	view
10	x 2	mach-orion5x mach-orion5x	wnr854t-setup.c wrt350n-v2-setup.c	132:151 220:239	view
9	x 2	mach-omap2 mach-davinci	pdata-quirks.c pdata-quirks.c	525:534 191:200	view
9	x 2	include/asm include/asm	atomic.h atomic.h	253:264 275:286	view
9	x 2	mach-orion5x mach-orion5x	kurobox_pro-setup.c terastation_pro2-setup.c	209:220 184:195	view
9	x 2	mach-orion5x mach-orion5x	dns323-setup.c tsx09-common.c	179:191 52:64	view
8	x 2	mm mm	cache-tauros2.c cache-tauros2.c	120:128 130:138	view
8	x 2	mach-orion5x mach-orion5x	kurobox_pro-setup.c ts409-setup.c	121:137 119:135	view
8	x 2	mach-imx mach-imx	mach-imx6sx.c mach-imx6q.c	47:55 206:214	view
8	x 2	mach-pxa mach-pxa	spitz.c corgi.c	517:526 555:564	view
7	x 2	mach-omap2 mach-omap2	cm2xxx.c cm3xxx.c	43:51 32:40	view
7	x 2	include/asm include/asm	tlbflush.h tlbflush.h	537:545 547:555	view
7	x 2	include/asm include/asm	irqflags.h irqflags.h	37:44 47:54	view
7	x 2	mach-omap1 mach-omap1	board-fsample.c board-perseus2.c	120:127 228:235	view
7	x 2	mach-mmp mach-mmp	mmp2-dt.c mmp-dt.c	20:27 29:36	view
7	x 2	mach-orion5x mach-orion5x	dns323-setup.c board-mss2.c	74:86 27:39	view
7	x 2	kernel kernel	pj4-cp0.c xscale-cp0.c	50:58 90:99	view
6	x 2	probes/kprobes probes/kprobes	test-core.c test-core.c	452:458 460:466	view
6	x 2	include/asm include/asm	arch_timer.h arch_timer.h	94:101 108:115	view
6	x 2	mach-mv78xx0 mach-dove	common.c common.c	410:424 440:454	view
6	x 2	mach-s5pv210 mach-s3c	pm.c pm-common.c	41:47 27:33	view
6	x 2	mm mm	mmu.c mmu.c	180:186 189:195	view
6	x 2	mach-exynos mach-vexpress	mcpm-exynos.c tc2_pm.c	206:212 194:200	view
6	x 2	mach-pxa mach-pxa	colibri-pxa320.c vpac270.c	161:167 368:374	view