elastic / apm-perf - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 166 units with 3,225 lines of code in units (77.1% of code).

0 very complex units (0 lines of code)
1 complex units (119 lines of code)
10 medium complex units (552 lines of code)
34 simple units (1,140 lines of code)
121 very simple units (1,414 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
func writeAPMEvents() in loadgen/eventhandler/apm-writer.go	119	36	6
func New() in loadgen/eventhandler/handler.go	69	18	3
func randomizeTraceID() in loadgen/eventhandler/handler.go	33	16	3
func() in internal/proxy/stub_es.go	79	15	1
func getHandlerParams() in internal/soaktest/runner.go	68	14	2
func Start() in internal/telemetrygen/traces/traces.go	65	13	1
func assertCleanupState() in cmd/apmbench/main.go	49	11	3
func Run() in cmd/apmbench/run.go	54	11	1
func init() in cmd/apmbench/config.go	60	11	0
func() in cmd/otelinmemexporter/store.go	43	11	1
func addHistogramDataPoint() in cmd/otelinmemexporter/histogram.go	32	11	2
func() in internal/telemetrygen/metrics/worker.go	67	10	1
func checkDuplicateAggConfigForName() in cmd/otelinmemexporter/store.go	23	10	2
func deltaExplicitBucketsQuantile() in cmd/otelinmemexporter/histogram.go	44	10	2
func Start() in internal/telemetrygen/metrics/metrics.go	43	9	1
func Run() in internal/telemetrygen/traces/traces.go	52	9	2
func() in pkg/telemetrygen/config.go	23	9	1
func() in loadgen/config/config.go	23	9	1
func() in loadgen/eventhandler/handler.go	49	9	1
func ParseEventRate() in loadgen/limiter.go	21	9	1
func main() in cmd/apmbench/main.go	60	9	0
func() in internal/telemetrygen/logs/worker.go	36	8	1
func newExporter() in internal/telemetrygen/logs/exporter.go	36	8	1
func() in internal/telemetrygen/traces/worker.go	55	8	1
func() in internal/soaktest/runner.go	34	8	1
func commonConfigWithHTTPPath() in cmd/apmbench/bench_otlp.go	44	8	1
func() in internal/telemetrygen/logs/exporter.go	32	7	1
func randomizeASCII() in loadgen/eventhandler/handler.go	19	7	3
func() in loadgen/eventhandler/apm-collector.go	29	7	1
func shouldRun() in cmd/apmbench/run.go	12	7	3
func() in cmd/otelinmemexporter/store.go	40	7	1
func validateAndGroupAggregationConfigs() in cmd/otelinmemexporter/store.go	24	7	1
func Run() in internal/telemetrygen/metrics/metrics.go	38	6	2
func Run() in internal/telemetrygen/logs/logs.go	38	6	3
func NewRunner() in internal/soaktest/runner.go	25	6	2
func() in loadgen/eventhandler/handler.go	22	6	1
func main() in cmd/apmsoak/main.go	30	6	0
func main() in cmd/apmtelemetrygen/main.go	40	6	0
func newRunCmd() in cmd/apmtelemetrygen/main.go	40	6	0
func() in cmd/otelinmemexporter/store.go	17	6	1
func() in cmd/otelinmemexporter/store.go	18	6	1
func() in cmd/otelinmemexporter/store.go	21	6	1
func() in cmd/otelinmemexporter/store.go	21	6	1
func() in cmd/otelinmemexporter/store.go	29	6	1
func() in cmd/otelinmemexporter/http.go	35	6	1
func Start() in internal/telemetrygen/logs/logs.go	19	5	1
func() in internal/telemetrygen/common/config.go	12	5	1
func init() in loadgen/config/config.go	59	5	0
func() in loadgen/eventhandler/apm.go	17	5	1
func logResponseOutcome() in loadgen/eventhandler/apm.go	22	5	2