Duplication · Netflix/flamescope

Duplication Overall

27% duplication:

2,524 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
683 duplicated lines

268 duplicates

dependency graphs: 2D graph | 2D graph (with duplicates)... | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 50 longest duplicates.

See data for all 268 duplicates...

Size	#	Folders	Files	Lines	Code
26	x 2	app/controllers app/controllers	differential.py elided.py	31:57 (92%) 31:57 (92%)	view
20	x 2	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph	DifferentialFlameGraph.jsx ElidedFlameGraph.jsx	1:21 (60%) 1:21 (60%)	view
19	x 2	src/components/FlameGraph src/components/Heatmap	FlameGraph.jsx Heatmap.jsx	1:20 (4%) 1:20 (4%)	view
19	x 2	src/components/FileList src/components/FlameGraph	FileList.jsx FlameGraph.jsx	1:20 (16%) 1:20 (4%)	view
19	x 2	src/components/FileList src/components/Heatmap	FileList.jsx Heatmap.jsx	1:20 (16%) 1:20 (4%)	view
18	x 2	src/components/FileList src/components/Navbar	FileList.jsx Navbar.jsx	1:19 (15%) 1:19 (29%)	view
18	x 2	src/components/FlameGraph src/components/Navbar	FlameGraph.jsx Navbar.jsx	1:19 (4%) 1:19 (29%)	view
18	x 2	src/components/Heatmap src/components/Navbar	Heatmap.jsx Navbar.jsx	1:19 (4%) 1:19 (29%)	view
18	x 2	src/components/Error src/components/FlameGraph	Error.jsx FlameGraph.jsx	1:19 (41%) 1:19 (4%)	view
18	x 2	src/components/Error src/components/Heatmap	Error.jsx Heatmap.jsx	1:19 (41%) 1:19 (4%)	view
18	x 2	src src	App.jsx index.jsx	1:19 (38%) 1:19 (45%)	view
18	x 2	src/components/Error src/components/Navbar	Error.jsx Navbar.jsx	1:19 (41%) 1:19 (29%)	view
18	x 2	src/components/Error src/components/FileList	Error.jsx FileList.jsx	1:19 (41%) 1:19 (15%)	view
17	x 2	src/actions/Navbar src/reducers	Navbar.jsx RootReducer.jsx	1:17 (51%) 1:17 (73%)	view
17	x 2	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph	DifferentialFlameGraph.jsx index.jsx	1:17 (51%) 1:17 (94%)	view
17	x 2	src/components src	index.jsx index.jsx	1:17 (70%) 1:17 (42%)	view
17	x 2	src/components/FileList src/reducers	index.jsx NavbarReducer.jsx	1:17 (94%) 1:17 (23%)	view
17	x 2	src/common src/components/FlameGraph	CheckStatus.jsx index.jsx	1:17 (65%) 1:17 (94%)	view
17	x 2	src/components/FileList src/reducers	FileList.jsx index.jsx	1:17 (15%) 1:17 (94%)	view
17	x 2	src/components/Error src/components/Navbar	index.jsx Navbar.jsx	1:17 (94%) 1:17 (27%)	view
17	x 2	src src/components/Navbar	App.jsx index.jsx	1:17 (36%) 1:17 (94%)	view
17	x 2	src/components/Error src/components/Heatmap	Error.jsx index.jsx	1:17 (39%) 1:17 (94%)	view
17	x 2	src/actions/Navbar src/components	Navbar.jsx index.jsx	1:17 (51%) 1:17 (70%)	view
17	x 2	src src/reducers	index.jsx RootReducer.jsx	1:17 (42%) 1:17 (73%)	view
17	x 2	src/common src/components/FileList	CheckStatus.jsx index.jsx	1:17 (65%) 1:17 (94%)	view
17	x 2	src/components/FlameGraph src/reducers	index.jsx NavbarReducer.jsx	1:17 (94%) 1:17 (23%)	view
17	x 2	src/components/Error src/reducers	index.jsx index.jsx	1:17 (94%) 1:17 (94%)	view
17	x 2	src/components/Error src/components/Navbar	Error.jsx index.jsx	1:17 (39%) 1:17 (94%)	view
17	x 2	src src/components/Heatmap	App.jsx index.jsx	1:17 (36%) 1:17 (94%)	view
17	x 2	src/actions/Navbar src	Navbar.jsx index.jsx	1:17 (51%) 1:17 (42%)	view
17	x 2	src/components src/reducers	index.jsx RootReducer.jsx	1:17 (70%) 1:17 (73%)	view
17	x 2	src/components/FileList src/components/FlameGraph	index.jsx index.jsx	1:17 (94%) 1:17 (94%)	view
17	x 2	src/common src/reducers	CheckStatus.jsx NavbarReducer.jsx	1:17 (65%) 1:17 (23%)	view
17	x 2	src/components/Error src/components/FileList	index.jsx FileList.jsx	1:17 (94%) 1:17 (15%)	view
17	x 2	src/components/Navbar src/reducers	Navbar.jsx index.jsx	1:17 (27%) 1:17 (94%)	view
17	x 2	src/components/Heatmap src/components/Navbar	index.jsx index.jsx	1:17 (94%) 1:17 (94%)	view
17	x 2	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph	index.jsx ElidedFlameGraph.jsx	1:17 (94%) 1:17 (51%)	view
17	x 2	src src/components/Error	App.jsx Error.jsx	1:17 (36%) 1:17 (39%)	view
17	x 2	src/reducers src/reducers	NavbarReducer.jsx index.jsx	1:17 (23%) 1:17 (94%)	view
17	x 2	src/components/FlameGraph src/components	FlameGraph.jsx index.jsx	1:17 (3%) 1:17 (70%)	view
17	x 2	src/components/Heatmap src	Heatmap.jsx index.jsx	1:17 (4%) 1:17 (42%)	view
17	x 2	src/components/FileList src/components/FileList	FileList.jsx index.jsx	1:17 (15%) 1:17 (94%)	view
17	x 2	src/common src/components/Navbar	CheckStatus.jsx Navbar.jsx	1:17 (65%) 1:17 (27%)	view
17	x 2	src/components/Error src/components/FlameGraph	index.jsx index.jsx	1:17 (94%) 1:17 (94%)	view
17	x 2	src/actions/Navbar src/components/Navbar	index.jsx index.jsx	1:17 (94%) 1:17 (94%)	view
17	x 2	src/components/FileList src/reducers	index.jsx index.jsx	1:17 (94%) 1:17 (94%)	view
17	x 2	src/components/Heatmap src/components	Heatmap.jsx index.jsx	1:17 (4%) 1:17 (70%)	view
17	x 2	src/components/FlameGraph src	FlameGraph.jsx index.jsx	1:17 (3%) 1:17 (42%)	view
17	x 2	src/components/FileList src/reducers	FileList.jsx NavbarReducer.jsx	1:17 (15%) 1:17 (23%)	view
17	x 2	src/common src/components/Error	CheckStatus.jsx index.jsx	1:17 (65%) 1:17 (94%)	view

Most Frequent Duplicates

The list of 20 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	12:17 (18%) 12:17 (33%) 12:17 (25%) 12:17 (15%) 12:17 (18%) 12:17 (1%) 12:17 (26%) 12:17 (33%) 12:17 (8%) 12:17 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	7:12 (18%) 7:12 (33%) 7:12 (25%) 7:12 (15%) 7:12 (18%) 7:12 (1%) 7:12 (26%) 7:12 (33%) 7:12 (8%) 7:12 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	9:14 (18%) 9:14 (33%) 9:14 (25%) 9:14 (15%) 9:14 (18%) 9:14 (1%) 9:14 (26%) 9:14 (33%) 9:14 (8%) 9:14 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	10:15 (18%) 10:15 (33%) 10:15 (25%) 10:15 (15%) 10:15 (18%) 10:15 (1%) 10:15 (26%) 10:15 (33%) 10:15 (8%) 10:15 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	4:9 (18%) 4:9 (33%) 4:9 (25%) 4:9 (15%) 4:9 (18%) 4:9 (1%) 4:9 (26%) 4:9 (33%) 4:9 (8%) 4:9 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	5:10 (18%) 5:10 (33%) 5:10 (25%) 5:10 (15%) 5:10 (18%) 5:10 (1%) 5:10 (26%) 5:10 (33%) 5:10 (8%) 5:10 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	8:13 (18%) 8:13 (33%) 8:13 (25%) 8:13 (15%) 8:13 (18%) 8:13 (1%) 8:13 (26%) 8:13 (33%) 8:13 (8%) 8:13 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	6:11 (18%) 6:11 (33%) 6:11 (25%) 6:11 (15%) 6:11 (18%) 6:11 (1%) 6:11 (26%) 6:11 (33%) 6:11 (8%) 6:11 (23%) ...	view
6	x 23	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common ...	DifferentialFlameGraph.jsx index.jsx index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx ...	11:16 (18%) 11:16 (33%) 11:16 (25%) 11:16 (15%) 11:16 (18%) 11:16 (1%) 11:16 (26%) 11:16 (33%) 11:16 (8%) 11:16 (23%) ...	view
6	x 19	src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common src/components/FileList src/reducers ...	index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx FileList.jsx index.jsx ...	2:7 (25%) 2:7 (15%) 2:7 (18%) 2:7 (1%) 2:7 (26%) 2:7 (33%) 2:7 (8%) 2:7 (23%) 2:7 (5%) 2:7 (33%) ...	view
6	x 19	src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common src/components/FileList src/reducers ...	index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx FileList.jsx index.jsx ...	1:6 (25%) 1:6 (15%) 1:6 (18%) 1:6 (1%) 1:6 (26%) 1:6 (33%) 1:6 (8%) 1:6 (23%) 1:6 (5%) 1:6 (33%) ...	view
6	x 19	src/components src src/actions/Navbar src/components/Heatmap src/reducers src/components/FileList src/reducers src/common src/components/FileList src/reducers ...	index.jsx index.jsx Navbar.jsx Heatmap.jsx RootReducer.jsx index.jsx NavbarReducer.jsx CheckStatus.jsx FileList.jsx index.jsx ...	3:8 (25%) 3:8 (15%) 3:8 (18%) 3:8 (1%) 3:8 (26%) 3:8 (33%) 3:8 (8%) 3:8 (23%) 3:8 (5%) 3:8 (33%) ...	view
6	x 7	src/components/Heatmap src/components/Navbar src/components/FileList src/components/ElidedFlameGraph src/components/FlameGraph src/components/DifferentialFlameGraph src/components/Error	Heatmap.jsx Navbar.jsx FileList.jsx ElidedFlameGraph.jsx FlameGraph.jsx DifferentialFlameGraph.jsx Error.jsx	13:19 (1%) 13:19 (9%) 13:19 (5%) 13:19 (18%) 13:19 (1%) 13:19 (18%) 13:19 (13%)	view
6	x 5	src/components/ElidedFlameGraph src/components/FlameGraph src/components/DifferentialFlameGraph src/components/FileList src/components/Heatmap	ElidedFlameGraph.jsx FlameGraph.jsx DifferentialFlameGraph.jsx FileList.jsx Heatmap.jsx	14:20 (18%) 14:20 (1%) 14:20 (18%) 14:20 (5%) 14:20 (1%)	view
6	x 4	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components/ElidedFlameGraph src/components/DifferentialFlameGraph	DifferentialFlameGraph.jsx index.jsx ElidedFlameGraph.jsx index.jsx	1:6 (18%) 1:6 (33%) 1:6 (18%) 1:6 (33%)	view
6	x 4	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components/ElidedFlameGraph src/components/DifferentialFlameGraph	DifferentialFlameGraph.jsx index.jsx ElidedFlameGraph.jsx index.jsx	2:7 (18%) 2:7 (33%) 2:7 (18%) 2:7 (33%)	view
6	x 4	src/components/DifferentialFlameGraph src/components/ElidedFlameGraph src/components/ElidedFlameGraph src/components/DifferentialFlameGraph	DifferentialFlameGraph.jsx index.jsx ElidedFlameGraph.jsx index.jsx	3:8 (18%) 3:8 (33%) 3:8 (18%) 3:8 (33%)	view
6	x 3	app/nflxprofile app/nflxprofile app/nflxprofile	flame_graph.py heatmap.py flame_graph.py	37:42 (16%) 28:33 (37%) 58:63 (16%)	view
6	x 3	app/nflxprofile app/nflxprofile app/nflxprofile	flame_graph.py heatmap.py flame_graph.py	39:44 (16%) 30:35 (37%) 60:65 (16%)	view
6	x 3	app/nflxprofile app/nflxprofile app/nflxprofile	flame_graph.py heatmap.py flame_graph.py	38:43 (16%) 29:34 (37%) 59:64 (16%)	view

About This Analysis

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...

To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:

Avoid Repetition, MartinFlower.com (IEEE Software article)
Refactoring duplicated code, sourcemaking.com
Beck Design Rules, MartinFowler.com
DRY (Don't Repeat Yourself) Principle, Wikipedia
The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:

"Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"

Reducing Coupling, MartinFlower.com (IEEE Software article):

"There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."