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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

25% duplication:

32,530 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
8,336 duplicated lines

1,934 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
boot (10%) --> kernel (<1%)	78	1 file pair	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 1,934 duplicates...

Size	#	Folders	Files	Lines	Code
289	x 2	math-emu math-emu	fmpyfadd.c fmpyfadd.c	1394:1998 (22%) 2036:2640 (22%)	view
206	x 2	math-emu math-emu	fmpyfadd.c fmpyfadd.c	77:533 (16%) 737:1193 (16%)	view
110	x 2	math-emu math-emu	sfadd.c sfsub.c	284:504 (50%) 287:507 (49%)	view
108	x 2	math-emu math-emu	dfadd.c dfsub.c	288:506 (48%) 291:509 (47%)	view
98	x 2	math-emu math-emu	fmpyfadd.c fmpyfadd.c	541:699 (7%) 1201:1357 (7%)	view
95	x 2	math-emu math-emu	fpudispatch.c fpudispatch.c	435:536 (9%) 866:967 (9%)	view
59	x 2	math-emu math-emu	sfdiv.c sfmpy.c	294:378 (28%) 281:366 (31%)	view
52	x 2	kernel kernel	perf_images.h perf_images.h	2398:2458 (2%) 2919:2979 (2%)	view
51	x 2	math-emu math-emu	dfdiv.c dfmpy.c	316:386 (24%) 311:380 (25%)	view
42	x 2	kernel kernel	perf_images.h perf_images.h	2362:2412 (1%) 2408:2458 (1%)	view
42	x 2	kernel kernel	perf_images.h perf_images.h	2362:2412 (1%) 2929:2979 (1%)	view
41	x 2	kernel kernel	perf_images.h perf_images.h	2123:2172 (1%) 2734:2784 (1%)	view
36	x 2	kernel kernel	perf_images.h perf_images.h	1075:1119 (1%) 1213:1257 (1%)	view
36	x 2	kernel kernel	perf_images.h perf_images.h	1075:1119 (1%) 1121:1165 (1%)	view
36	x 2	kernel kernel	perf_images.h perf_images.h	1121:1165 (1%) 1213:1257 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1719:1762 (1%) 1857:1900 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1719:1762 (1%) 1811:1854 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1719:1762 (1%) 1765:1808 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1673:1716 (1%) 1811:1854 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1673:1716 (1%) 1857:1900 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1811:1854 (1%) 1857:1900 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1627:1670 (1%) 1811:1854 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1627:1670 (1%) 1857:1900 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1673:1716 (1%) 1719:1762 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1673:1716 (1%) 1765:1808 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1627:1670 (1%) 1673:1716 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1627:1670 (1%) 1719:1762 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1765:1808 (1%) 1811:1854 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1627:1670 (1%) 1765:1808 (1%)	view
35	x 2	kernel kernel	perf_images.h perf_images.h	1765:1808 (1%) 1857:1900 (1%)	view
34	x 2	kernel kernel	perf_images.h perf_images.h	1719:1752 (1%) 1903:1936 (1%)	view
34	x 2	kernel kernel	perf_images.h perf_images.h	1673:1706 (1%) 1903:1936 (1%)	view
34	x 2	kernel kernel	perf_images.h perf_images.h	1811:1844 (1%) 1903:1936 (1%)	view
34	x 2	kernel kernel	perf_images.h perf_images.h	1627:1660 (1%) 1903:1936 (1%)	view
34	x 2	math-emu math-emu	dfadd.c dfsub.c	214:278 (15%) 217:281 (15%)	view
34	x 2	kernel kernel	perf_images.h perf_images.h	1765:1798 (1%) 1903:1936 (1%)	view
34	x 2	kernel kernel	perf_images.h perf_images.h	1857:1890 (1%) 1903:1936 (1%)	view
33	x 2	kernel kernel	perf_images.h perf_images.h	2742:2784 (1%) 2789:2832 (1%)	view
33	x 2	kernel kernel	perf_images.h perf_images.h	2131:2172 (1%) 2789:2832 (1%)	view
33	x 2	kernel kernel	perf_images.h perf_images.h	2288:2320 (1%) 2334:2366 (1%)	view
33	x 2	kernel kernel	perf_images.h perf_images.h	1411:1452 (1%) 1503:1545 (1%)	view
33	x 2	kernel kernel	perf_images.h perf_images.h	1411:1452 (1%) 1457:1498 (1%)	view
33	x 2	kernel kernel	perf_images.h perf_images.h	1457:1498 (1%) 1503:1545 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	266:297 (1%) 1904:1935 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	266:297 (1%) 1766:1797 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	725:756 (1%) 1421:1452 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	725:756 (1%) 1467:1498 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	266:297 (1%) 1812:1843 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	725:756 (1%) 1514:1545 (1%)	view
32	x 2	kernel kernel	perf_images.h perf_images.h	266:297 (1%) 1858:1889 (1%)	view

Duplicated Units

The list of top 5 duplicated units.

See data for all 5 unit duplicates...

Size	#	Folders	Files	Lines	Code
12	x 2	include/asm include/asm	jump_label.h jump_label.h	13:26 28:41	view
9	x 2	lib lib	bitops.c bitops.c	33:43 46:56	view
9	x 2	kernel kernel	firmware.c firmware.c	1068:1078 1084:1094	view
8	x 2	include/asm include/asm	io.h io.h	87:95 97:105	view
6	x 2	kernel kernel	module.c jump_label.c	169:175 13:19	view