G

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

10% duplication:

770,855 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
83,597 duplicated lines

194,718 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
process (16%) --> translations (3%)	3118	33 file pairs	details...
core-api (7%) --> translations (1%)	1298	16 file pairs	details...
kernel-hacking (28%) --> translations (1%)	1017	3 file pairs	details...
ROOT (13%) --> translations (1%)	920	2 file pairs	details...
admin-guide (<1%) --> translations (<1%)	863	15 file pairs	details...
doc-guide (23%) --> translations (<1%)	535	6 file pairs	details...
PCI (4%) --> translations (<1%)	224	4 file pairs	details...
dev-tools (1%) --> translations (<1%)	202	2 file pairs	details...
infiniband (15%) --> translations (<1%)	184	4 file pairs	details...
scheduler (3%) --> translations (<1%)	162	4 file pairs	details...
driver-api (<1%) --> userspace-api (<1%)	138	7 file pairs	details...
admin-guide (<1%) --> driver-api (<1%)	110	4 file pairs	details...
cpu-freq (13%) --> translations (<1%)	108	4 file pairs	details...
trace (<1%) --> x86 (<1%)	88	1 file pair	details...
riscv (12%) --> translations (<1%)	86	2 file pairs	details...
maintainer (8%) --> translations (<1%)	82	3 file pairs	details...
admin-guide (<1%) --> userspace-api (<1%)	60	4 file pairs	details...
iio (24%) --> translations (<1%)	56	2 file pairs	details...
accounting (4%) --> translations (<1%)	54	2 file pairs	details...

Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 194,718 duplicates...

Size	#	Folders	Files	Lines	Code
177	x 2	process translations/zh_TW/process	kernel-driver-statement.rst kernel-driver-statement.rst	26:202 (90%) 26:202 (91%)	view
177	x 2	process translations/it_IT/process	kernel-driver-statement.rst kernel-driver-statement.rst	26:202 (90%) 34:210 (87%)	view
177	x 2	translations/it_IT/process translations/zh_TW/process	kernel-driver-statement.rst kernel-driver-statement.rst	34:210 (87%) 26:202 (91%)	view
177	x 2	translations/it_IT/process translations/zh_CN/process	kernel-driver-statement.rst kernel-driver-statement.rst	34:210 (87%) 23:199 (92%)	view
177	x 2	translations/zh_CN/process translations/zh_TW/process	kernel-driver-statement.rst kernel-driver-statement.rst	23:199 (92%) 26:202 (91%)	view
177	x 2	process translations/zh_CN/process	kernel-driver-statement.rst kernel-driver-statement.rst	26:202 (90%) 23:199 (92%)	view
109	x 2	process translations/it_IT/process	kernel-enforcement-statement.rst kernel-enforcement-statement.rst	55:163 (71%) 67:175 (67%)	view
109	x 2	translations/zh_CN/process translations/zh_TW/process	kernel-enforcement-statement.rst kernel-enforcement-statement.rst	43:151 (78%) 46:154 (77%)	view
109	x 2	process translations/zh_TW/process	kernel-enforcement-statement.rst kernel-enforcement-statement.rst	55:163 (71%) 46:154 (77%)	view
109	x 2	translations/it_IT/process translations/zh_TW/process	kernel-enforcement-statement.rst kernel-enforcement-statement.rst	67:175 (67%) 46:154 (77%)	view
109	x 2	process translations/zh_CN/process	kernel-enforcement-statement.rst kernel-enforcement-statement.rst	55:163 (71%) 43:151 (78%)	view
109	x 2	translations/it_IT/process translations/zh_CN/process	kernel-enforcement-statement.rst kernel-enforcement-statement.rst	67:175 (67%) 43:151 (78%)	view
99	x 2	scsi scsi	ncr53c8xx.rst sym53c8xx_2.rst	2027:2142 (5%) 1094:1209 (10%)	view
82	x 2	translations/zh_CN/arm64 translations/zh_TW/arm64	elf_hwcaps.rst elf_hwcaps.rst	100:238 (55%) 103:241 (55%)	view
81	x 2	kernel-hacking translations/it_IT/kernel-hacking	locking.rst locking.rst	385:478 (6%) 410:503 (6%)	view
80	x 2	kernel-hacking translations/it_IT/kernel-hacking	locking.rst locking.rst	602:686 (6%) 628:712 (6%)	view
79	x 2	translations/zh_CN/process translations/zh_TW/process	magic-number.rst magic-number.rst	59:137 (65%) 62:140 (64%)	view
77	x 2	process translations/it_IT/process	magic-number.rst magic-number.rst	70:146 (57%) 76:152 (55%)	view
71	x 2	kernel-hacking translations/it_IT/kernel-hacking	locking.rst locking.rst	711:787 (6%) 737:813 (5%)	view
70	x 2	virt/kvm virt/kvm	api.rst api.rst	3938:4029 (1%) 5032:5123 (1%)	view
69	x 2	kernel-hacking translations/it_IT/kernel-hacking	locking.rst locking.rst	1141:1217 (5%) 1177:1253 (5%)	view
68	x 2	scsi scsi	aic79xx.rst aic7xxx.rst	512:593 (14%) 376:458 (18%)	view
67	x 2	devicetree/bindings/media devicetree/bindings/media	qcom,msm8996-camss.yaml qcom,sdm660-camss.yaml	120:204 (20%) 119:203 (19%)	view
65	x 2	dev-tools translations/zh_CN/dev-tools	kasan.rst kasan.rst	65:134 (17%) 67:136 (21%)	view
63	x 2	devicetree/bindings/power devicetree/bindings/power	mediatek,power-controller.yaml mediatek,power-controller.yaml	67:147 (28%) 118:198 (28%)	view
60	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8996-pinctrl.txt qcom,msm8998-pinctrl.txt	11:88 (34%) 11:88 (35%)	view
60	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8976-pinctrl.txt qcom,msm8994-pinctrl.txt	11:88 (40%) 13:90 (39%)	view
59	x 2	devicetree/bindings/media/i2c devicetree/bindings/media/i2c	txt tda1997x.txt tda1997x.txt	58:117 (35%) 100:159 (35%)	view
58	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8994-pinctrl.txt qcom,msm8998-pinctrl.txt	13:88 (37%) 11:86 (34%)	view
58	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8994-pinctrl.txt qcom,msm8996-pinctrl.txt	13:88 (37%) 11:86 (33%)	view
58	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8976-pinctrl.txt qcom,msm8998-pinctrl.txt	11:86 (38%) 11:86 (34%)	view
58	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8976-pinctrl.txt qcom,msm8996-pinctrl.txt	11:86 (38%) 11:86 (33%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,apq8084-pinctrl.txt qcom,ipq8074-pinctrl.txt	11:84 (36%) 11:84 (38%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,mdm9615-pinctrl.txt qcom,msm8960-pinctrl.txt	11:84 (44%) 11:84 (36%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,apq8084-pinctrl.txt qcom,msm8960-pinctrl.txt	11:84 (36%) 11:84 (36%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,apq8084-pinctrl.txt qcom,mdm9615-pinctrl.txt	11:84 (36%) 11:84 (44%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,ipq8074-pinctrl.txt qcom,msm8960-pinctrl.txt	11:84 (38%) 11:84 (36%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8916-pinctrl.txt qcom,msm8960-pinctrl.txt	11:84 (34%) 11:84 (36%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,ipq8074-pinctrl.txt qcom,mdm9615-pinctrl.txt	11:84 (38%) 11:84 (44%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,apq8084-pinctrl.txt qcom,msm8916-pinctrl.txt	11:84 (36%) 11:84 (34%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,ipq8074-pinctrl.txt qcom,msm8916-pinctrl.txt	11:84 (38%) 11:84 (34%)	view
57	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,mdm9615-pinctrl.txt qcom,msm8916-pinctrl.txt	11:84 (44%) 11:84 (34%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,apq8084-pinctrl.txt qcom,msm8976-pinctrl.txt	11:83 (36%) 11:83 (37%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8960-pinctrl.txt qcom,msm8994-pinctrl.txt	11:83 (35%) 13:85 (36%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,mdm9615-pinctrl.txt qcom,msm8976-pinctrl.txt	11:83 (43%) 11:83 (37%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,ipq8074-pinctrl.txt qcom,msm8976-pinctrl.txt	11:83 (37%) 11:83 (37%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,sc7180-pinctrl.txt qcom,sm8150-pinctrl.txt	23:95 (36%) 23:95 (35%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,msm8960-pinctrl.txt qcom,msm8976-pinctrl.txt	11:83 (35%) 11:83 (37%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,apq8084-pinctrl.txt qcom,msm8998-pinctrl.txt	11:83 (36%) 11:83 (33%)	view
56	x 2	devicetree/bindings/pinctrl devicetree/bindings/pinctrl	txt qcom,ipq8074-pinctrl.txt qcom,msm8994-pinctrl.txt	11:83 (37%) 13:85 (36%)	view

Duplicated Units

The list of top 5 duplicated units.

See data for all 5 unit duplicates...

Size	#	Folders	Files	Lines	Code
20	x 2	trace/postprocess trace/postprocess	trace-pagealloc-postprocess.pl trace-vmscan-postprocess.pl	391:415 731:755	view
16	x 2	trace/postprocess trace/postprocess	trace-pagealloc-postprocess.pl trace-vmscan-postprocess.pl	50:69 81:100	view
10	x 2	trace/postprocess trace/postprocess	trace-pagealloc-postprocess.pl trace-vmscan-postprocess.pl	136:150 229:243	view
9	x 2	trace/postprocess trace/postprocess	trace-pagealloc-postprocess.pl trace-vmscan-postprocess.pl	152:164 245:257	view
6	x 2	trace/postprocess trace/postprocess	trace-pagealloc-postprocess.pl trace-vmscan-postprocess.pl	381:388 721:728	view