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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

5% duplication:

36,413 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
2,098 duplicated lines

176 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
cachelib/cachebench (<1%) --> cachelib/cmake (3%)	64	4 file pairs	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 176 duplicates...

Size	#	Folders	Files	Lines	Code
36	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs lrucache.rs	118:159 (24%) 1157:1198 (4%)	view
30	x 2	cachelib/allocator cachelib/allocator	MM2Q.h MMLru.h	347:456 (12%) 234:341 (19%)	view
27	x 2	cachelib/benchmarks cachelib/benchmarks	BucketMutexBench.cpp MutexBench.cpp	240:285 (13%) 318:363 (9%)	view
26	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.cpp IntegrationStressor.cpp	143:171 (10%) 281:309 (10%)	view
22	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs lrucache.rs	123:144 (14%) 1122:1143 (2%)	view
22	x 2	cachelib/rust/src cachelib/rust/src	lrucache.rs lrucache.rs	1122:1143 (2%) 1162:1183 (2%)	view
21	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.cpp IntegrationStressor.cpp	110:139 (8%) 248:277 (8%)	view
19	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.h IntegrationStressor.h	102:139 (17%) 173:210 (17%)	view
19	x 2	cachelib/common/piecewise cachelib/common/piecewise	GenericPiecesTest.cpp GenericPiecesTest.cpp	92:110 (15%) 114:132 (15%)	view
17	x 2	cachelib/benchmarks cachelib/benchmarks	SpeedUpExistenceCheckBenchmark.cpp SpeedUpExistenceCheckBenchmark.cpp	233:257 (6%) 289:313 (6%)	view
17	x 2	cachelib/benchmarks cachelib/benchmarks	BucketMutexBench.cpp MutexBench.cpp	101:124 (8%) 93:116 (6%)	view
16	x 2	cachelib/cmake cachelib/cmake	cmake FindZlib.cmake FindZstd.cmake	1:17 (40%) 1:17 (42%)	view
16	x 2	cachelib/benchmarks cachelib/benchmarks	CachelibMapWorkloadBench.cpp CachelibRangeMapWorkloadBench.cpp	62:83 (12%) 73:94 (13%)	view
15	x 2	cachelib/rust/src cachelib/rust/src	errors.rs lrucache.rs	1:15 (31%) 1:15 (1%)	view
15	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs errors.rs	1:15 (10%) 1:15 (31%)	view
15	x 2	cachelib/rust cachelib/rust/src	build.rs errors.rs	1:15 (65%) 1:15 (31%)	view
15	x 2	cachelib/rust cachelib/rust/readonly	build.rs readonly.rs	1:15 (65%) 1:15 (10%)	view
15	x 2	cachelib/rust cachelib/rust/src	build.rs lrucache.rs	1:15 (65%) 1:15 (1%)	view
15	x 2	cachelib/rust/src cachelib/rust/src	errors.rs lib.rs	1:15 (31%) 1:15 (11%)	view
15	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs lib.rs	1:15 (10%) 1:15 (11%)	view
15	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs lrucache.rs	1:15 (10%) 1:15 (1%)	view
15	x 2	cachelib/rust/src cachelib/rust/src	abomonation_cache.rs errors.rs	1:15 (13%) 1:15 (31%)	view
15	x 2	cachelib/rust cachelib/rust/src	build.rs abomonation_cache.rs	1:15 (65%) 1:15 (13%)	view
15	x 2	cachelib/rust/src cachelib/rust/src	abomonation_cache.rs lrucache.rs	1:15 (13%) 1:15 (1%)	view
15	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs abomonation_cache.rs	1:15 (10%) 1:15 (13%)	view
15	x 2	cachelib/rust cachelib/rust/src	build.rs lib.rs	1:15 (65%) 1:15 (11%)	view
15	x 2	cachelib/rust/src cachelib/rust/src	abomonation_cache.rs lib.rs	1:15 (13%) 1:15 (11%)	view
15	x 2	cachelib/rust/src cachelib/rust/src	lib.rs lrucache.rs	1:15 (11%) 1:15 (1%)	view
14	x 2	cachelib/benchmarks cachelib/benchmarks	BucketMutexBench.cpp MutexBench.cpp	200:223 (6%) 250:273 (5%)	view
13	x 2	cachelib/cmake cachelib/cmake	cmake FindGMock.cmake FindZstd.cmake	1:13 (28%) 1:13 (34%)	view
13	x 2	cachelib/cachebench/vizualize cachelib/cmake	plt gnuplot_latency.plt FindGMock.cmake	1:13 (31%) 1:13 (28%)	view
13	x 2	cachelib/cmake cachelib/cmake	cmake FindGMock.cmake FindZlib.cmake	1:13 (28%) 1:13 (32%)	view
13	x 2	cachelib/cachebench/vizualize cachelib/cmake	plt gnuplot_latency.plt FindZlib.cmake	1:13 (31%) 1:13 (32%)	view
13	x 2	cachelib/cachebench/vizualize cachelib/cmake	plt gnuplot_latency.plt FindZstd.cmake	1:13 (31%) 1:13 (34%)	view
13	x 2	cachelib/allocator cachelib/allocator	HitsPerSlabStrategy.h LruTailAgeStrategy.h	82:103 (21%) 81:102 (24%)	view
13	x 2	cachelib/benchmarks cachelib/benchmarks	BucketMutexBench.cpp MutexBench.cpp	318:336 (6%) 425:443 (4%)	view
12	x 2	cachelib/benchmarks cachelib/benchmarks	CachelibMapWorkloadBench.cpp CachelibRangeMapWorkloadBench.cpp	144:158 (9%) 154:168 (9%)	view
12	x 2	cachelib/benchmarks cachelib/benchmarks	CachelibMapWorkloadBench.cpp CachelibRangeMapWorkloadBench.cpp	174:188 (9%) 183:197 (9%)	view
11	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.cpp IntegrationStressor.cpp	43:58 (4%) 124:139 (4%)	view
11	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.cpp IntegrationStressor.cpp	43:58 (4%) 262:277 (4%)	view
11	x 2	cachelib/cachebench/workload cachelib/cachebench/workload	PieceWiseCache.cpp PieceWiseCache.h	297:307 (3%) 259:269 (7%)	view
11	x 2	cachelib/benchmarks cachelib/benchmarks	EventTrackerPerf.cpp EventTrackerPerf.cpp	54:70 (23%) 92:108 (23%)	view
11	x 2	cachelib/allocator cachelib/allocator	MMLru-inl.h MMTinyLFU-inl.h	45:58 (4%) 66:79 (4%)	view
10	x 2	cachelib/benchmarks cachelib/benchmarks	CachelibMapWorkloadBench.cpp CachelibRangeMapWorkloadBench.cpp	36:50 (8%) 47:61 (8%)	view
10	x 2	cachelib/allocator cachelib/allocator	MM2Q-inl.h MMTinyLFU-inl.h	436:448 (3%) 333:346 (4%)	view
10	x 2	cachelib/allocator cachelib/allocator	Handle.h Handle.h	494:516 (3%) 583:605 (3%)	view
10	x 2	cachelib/navy/block_cache cachelib/navy/block_cache	RegionManager.cpp RegionManager.h	26:35 (3%) 78:87 (9%)	view
10	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.h IntegrationStressor.h	61:78 (9%) 173:190 (9%)	view
10	x 2	cachelib/allocator cachelib/allocator	MMLru-inl.h MMTinyLFU-inl.h	353:365 (3%) 333:346 (4%)	view
10	x 2	cachelib/cachebench/runner cachelib/cachebench/runner	IntegrationStressor.h IntegrationStressor.h	61:78 (9%) 102:119 (9%)	view

Duplicated Units

The list of top 5 duplicated units.

See data for all 5 unit duplicates...

Size	#	Folders	Files	Lines	Code
33	x 2	cachelib/rust/readonly cachelib/rust/src	readonly.rs lrucache.rs	122:157 1161:1196	view
11	x 3	cachelib/allocator cachelib/allocator cachelib/allocator	MMLru-inl.h MMTinyLFU-inl.h MM2Q-inl.h	352:366 332:347 435:449	view
9	x 2	cachelib/cachebench/workload cachelib/cachebench/workload	WorkloadGenerator.cpp OnlineGenerator.cpp	135:145 127:137	view
7	x 2	cachelib/allocator cachelib/allocator	MMLru-inl.h MM2Q-inl.h	258:266 297:305	view
6	x 2	cachelib/benchmarks cachelib/benchmarks	CachelibRangeMapWorkloadBench.cpp CachelibMapWorkloadBench.cpp	72:79 61:68	view