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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

6% duplication:

11,272 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
788 duplicated lines

110 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
src/Microsoft.VisualStudio.Threading.Analyzers.CSharp (3%) --> src/Microsoft.VisualStudio.Threading.Analyzers (2%)	66	7 file pairs	details...

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Longest Duplicates

The list of 20 longest duplicates.

See data for all 110 duplicates...

Size	#	Folders	Files	Lines	Code
23	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	665:721 (5%) 779:835 (5%)	view
21	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	933:981 (5%) 1026:1074 (5%)	view
20	x 2	src/Microsoft.VisualStud...alyzers.CodeFixes/tools src/Microsoft.VisualStud...alyzers.CodeFixes/tools	install.ps1 uninstall.ps1	15:36 (44%) 15:36 (39%)	view
18	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	394:431 (4%) 566:602 (4%)	view
17	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	475:512 (4%) 551:587 (4%)	view
15	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	330:357 (3%) 490:520 (3%)	view
14	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	689:718 (3%) 1045:1074 (3%)	view
14	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	803:832 (3%) 1045:1074 (3%)	view
14	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	689:718 (3%) 952:981 (3%)	view
14	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	803:832 (3%) 952:981 (3%)	view
13	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	747:771 (3%) 861:885 (3%)	view
13	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	322:349 (3%) 386:416 (3%)	view
12	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	330:349 (3%) 566:587 (3%)	view
12	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	ReentrantSemaphore.cs ReentrantSemaphore.cs	394:416 (3%) 490:512 (3%)	view
11	x 2	azure-pipelines/variables azure-pipelines/variables	InsertConfigValues.ps1 InsertPropsValues.ps1	4:15 (84%) 4:16 (84%)	view
10	x 2	src/Microsoft.VisualStudio.Threading.Analyzers src/Microsoft.VisualStudio.Threading.Analyzers	VSTHRD100AsyncVoidMethodAnalyzer.cs VSTHRD101AsyncVoidLambdaAnalyzer.cs	43:61 (43%) 45:63 (38%)	view
10	x 2	src/Microsoft.VisualStud...eading.Analyzers.CSharp src/Microsoft.VisualStudio.Threading.Analyzers	VSTHRD002UseJtfRunAnalyzer.cs VSTHRD106UseInvokeAsyncForAsyncEvents...	41:59 (13%) 40:58 (34%)	view
10	x 2	src/Microsoft.VisualStudio.Threading.Analyzers src/Microsoft.VisualStudio.Threading.Analyzers	AbstractVSTHRD108AssertThreadRequirem... AbstractVSTHRD109AvoidAssertInAsyncMe...	45:63 (18%) 35:52 (37%)	view
10	x 2	azure-pipelines azure-pipelines	official.yml release.yml	108:117 (8%) 63:72 (12%)	view
10	x 2	src/Microsoft.VisualStud...eading.Analyzers.CSharp src/Microsoft.VisualStud...eading.Analyzers.CSharp	VSTHRD002UseJtfRunAnalyzer.cs VSTHRD003UseJtfRunAsyncAnalyzer.cs	41:59 (13%) 47:65 (7%)	view

Duplicated Units

The list of top 5 duplicated units.

See data for all 5 unit duplicates...

Size	#	Folders	Files	Lines	Code
26	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	TplExtensions.cs TplExtensions.cs	276:304 316:344	view
17	x 2	src/Microsoft.VisualStudio.Threading.Analyzers src/Microsoft.VisualStudio.Threading.Analyzers	Utils.cs Utils.cs	20:37 39:56	view
9	x 2	src/Microsoft.VisualStudio.Threading.Analyzers src/Microsoft.VisualStudio.Threading.Analyzers	AbstractVSTHRD108AssertThreadRequirem... AbstractVSTHRD109AvoidAssertInAsyncMe...	53:64 43:53	view
9	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	AwaitExtensions.cs AwaitExtensions.cs	600:610 676:686	view
6	x 2	src/Microsoft.VisualStudio.Threading src/Microsoft.VisualStudio.Threading	TplExtensions.cs TplExtensions.cs	150:157 164:171	view