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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

7% duplication:

22,695 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
1,695 duplicated lines

140 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
example (21%) --> example_grpc (18%)	200	3 file pairs	details...
katran/decap (21%) --> katran/lib (<1%)	195	4 file pairs	details...
katran/lib (<1%) --> tools/xdpdump (3%)	50	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 140 duplicates...

Size	#	Folders	Files	Lines	Code
35	x 2	example example_grpc	KatranSimpleServer.cpp katran_server.cpp	40:80 (44%) 41:81 (42%)	view
21	x 2	katran/lib/bpf katran/lib/bpf	csum_helpers.h csum_helpers.h	272:296 (9%) 306:330 (9%)	view
20	x 2	katran/decap/testing katran/decap/testing	XdpDecapGueTestFixtures.h XdpDecapTestFixtures.h	54:82 (33%) 48:76 (37%)	view
18	x 2	katran/lib/linux_includes katran/lib/linux_includes	bpf.h bpf.h	3042:3067 (2%) 3297:3314 (2%)	view
15	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake FBThriftCppLibrary.cmake FBThriftPyLibrary.cmake	171:185 (8%) 40:54 (15%)	view
14	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	builder.py builder.py	722:735 (1%) 1208:1221 (1%)	view
14	x 2	katran/lib katran/lib	BpfLoader.cpp BpfLoader.cpp	238:259 (5%) 328:347 (5%)	view
13	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	platform.py platform.py	78:92 (7%) 136:149 (7%)	view
13	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake FindLibUnwind.cmake FindZstd.cmake	1:13 (52%) 1:13 (38%)	view
13	x 2	katran/lib/bpf katran/lib/bpf	healthchecking_ipip.c healthchecking_structs.h	49:63 (16%) 20:34 (54%)	view
13	x 2	katran/lib/bpf tools/xdpdump	balancer_structs.h XdpDumpKern.h	27:39 (15%) 46:58 (7%)	view
13	x 2	example example_grpc	KatranSimpleServer.cpp katran_server.cpp	83:96 (16%) 108:122 (15%)	view
12	x 2	katran/lib/bpf katran/lib/bpf	adapter_integration_test_kern.c xdp_pktcntr.c	34:49 (46%) 31:43 (42%)	view
11	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake RustStaticLibrary.cmake RustStaticLibrary.cmake	115:127 (4%) 180:192 (4%)	view
11	x 2	katran/decap/testing katran/lib/testing	XdpDecapGueTestFixtures.h KatranGueTestFixtures.h	66:82 (18%) 127:145 (6%)	view
11	x 2	katran/decap/testing katran/decap/testing	XdpDecapGueTestFixtures.h XdpDecapTestFixtures.h	114:130 (18%) 100:116 (20%)	view
11	x 2	katran/decap/testing katran/lib/testing	XdpDecapTestFixtures.h KatranGueTestFixtures.h	60:76 (20%) 127:145 (6%)	view
11	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake FBThriftCppLibrary.cmake FBThriftPyLibrary.cmake	86:97 (6%) 53:64 (11%)	view
11	x 2	katran/lib/bpf katran/lib/bpf	pckt_encap.h pckt_encap.h	42:52 (3%) 310:320 (3%)	view
11	x 2	katran/lib/bpf katran/lib/bpf	csum_helpers.h csum_helpers.h	254:267 (4%) 322:335 (4%)	view
11	x 2	example example_grpc	KatranSimpleServiceSignalHandler.cpp GrpcSignalHandler.cpp	34:44 (39%) 34:44 (39%)	view
10	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	manifest.py manifest.py	489:498 (1%) 501:510 (1%)	view
10	x 2	katran/decap/bpf katran/lib/bpf	decap_kern.c balancer_kern.c	225:239 (6%) 758:772 (2%)	view
10	x 2	katran/lib/bpf katran/lib/bpf	healthchecking_ipip.c healthchecking_maps.h	65:75 (12%) 27:37 (21%)	view
9	x 2	katran/decap/bpf katran/lib/bpf	decap_kern.c balancer_kern.c	129:139 (6%) 361:371 (1%)	view
9	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake FBThriftCppLibrary.cmake FBThriftLibrary.cmake	27:35 (5%) 29:38 (12%)	view
9	x 2	katran/lib katran/lib	MaglevHash.cpp MaglevHashV2.cpp	49:58 (29%) 57:66 (24%)	view
9	x 2	katran/decap/bpf katran/lib/bpf	decap_kern.c balancer_kern.c	34:42 (6%) 168:176 (1%)	view
9	x 2	katran/lib/bpf katran/lib/bpf	csum_helpers.h csum_helpers.h	238:249 (4%) 308:317 (4%)	view
9	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	manifest.py manifest.py	291:299 (1%) 328:336 (1%)	view
9	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake FBPythonBinary.cmake RustStaticLibrary.cmake	557:566 (1%) 221:230 (3%)	view
9	x 2	katran/lib/bpf katran/lib/bpf	csum_helpers.h csum_helpers.h	238:249 (4%) 274:283 (4%)	view
9	x 2	katran/decap/bpf katran/lib/bpf	decap_kern.c balancer_kern.c	43:53 (6%) 178:188 (1%)	view
9	x 2	example_grpc example_grpc	KatranGrpcService.cpp KatranGrpcService.cpp	216:224 (2%) 277:285 (2%)	view
9	x 2	katran/lib katran/lib	MaglevHash.cpp MaglevHashV2.cpp	22:32 (29%) 21:31 (24%)	view
9	x 2	katran/lib katran/lib	KatranLb.cpp KatranLb.cpp	1343:1353 (<1%) 1385:1395 (<1%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	cargo.py manifest.py	20:27 (2%) 621:628 (1%)	view
8	x 2	build/fbcode_builder build/fbcode_builder	getdeps.py getdeps.py	481:489 (<1%) 502:510 (<1%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	manifest.py manifest.py	289:297 (1%) 310:318 (1%)	view
8	x 2	katran/lib katran/lib	BpfLoader.cpp BpfLoader.cpp	198:208 (3%) 305:315 (3%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	builder.py builder.py	22:29 (<1%) 256:263 (<1%)	view
8	x 2	example example_grpc	KatranSimpleServer.cpp katran_server.cpp	98:105 (10%) 124:131 (9%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	expr.py expr.py	165:172 (6%) 176:183 (6%)	view
8	x 2	katran/lib tools/xdpdump	BalancerStructs.h XdpDumpStructs.h	70:77 (11%) 48:55 (19%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	builder.py builder.py	22:29 (<1%) 521:528 (<1%)	view
8	x 2	build/fbcode_builder/CMake build/fbcode_builder/CMake	cmake FBThriftCppLibrary.cmake FBThriftPyLibrary.cmake	117:124 (4%) 89:96 (8%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	builder.py builder.py	22:29 (<1%) 180:187 (<1%)	view
8	x 2	build/fbcode_builder/getdeps build/fbcode_builder/getdeps	builder.py cargo.py	22:29 (<1%) 15:22 (2%)	view
8	x 2	katran/lib katran/lib	BpfLoader.cpp BpfLoader.cpp	273:285 (3%) 356:367 (3%)	view
8	x 2	katran/lib tools/xdpdump	BalancerStructs.h XdpDumpStructs.h	70:77 (11%) 23:30 (19%)	view

Duplicated Units

The list of top 2 duplicated units.

See data for all 2 unit duplicates...

Size	#	Folders	Files	Lines	Code
10	x 2	example example_grpc	KatranSimpleServer.cpp katran_server.cpp	70:81 71:82	view
6	x 2	tools/start_katran/start...start_katran/irq_parser tools/start_katran/start...start_katran/affinitize	irq_parser.go affinitize.go	97:104 47:54	view