twitter / pelikanConditional 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 584 units with 6,860 lines of code in units (16.0% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
3 medium complex units (262 lines of code)
28 simple units (1,300 lines of code)
553 very simple units (5,298 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
fn try_from() in src/protocol/resp/src/request/set.rs	101	20	1
def calculate() in scripts/capacity/calculator.py	59	19	1
fn main() in src/proxy/momento/src/main.rs	102	15	0
fn main() in src/server/segcache/src/main.rs	87	10	0
fn accept() in src/core/proxy/src/listener.rs	38	9	1
fn accept() in src/core/server/src/listener.rs	38	9	1
fn read() in src/core/server/src/workers/single.rs	57	9	2
fn main() in src/proxy/ping/src/main.rs	69	9	0
fn main() in src/proxy/thrift/src/main.rs	68	9	0
fn main() in src/server/pingserver/src/main.rs	80	9	0
fn try_from() in src/protocol/resp/src/request/badd.rs	36	9	1
fn add() in src/entrystore/src/seg/memcache.rs	53	8	2
fn replace() in src/entrystore/src/seg/memcache.rs	53	8	2
fn get_benchmark() in src/server/segcache/benches/benchmark.rs	51	8	1
fn parse() in src/protocol/resp/src/request/mod.rs	65	8	2
fn merge_compact() in src/storage/seg/src/segments/segments.rs	75	8	3
XXH_FORCE_INLINE XXH_TARGET_SSE2 void XXH3_initCustomSecret_sse2() in legacy/src/storage/seg/xxhash.h	21	7	2
fn set() in src/entrystore/src/seg/memcache.rs	50	7	2
fn session_event() in src/core/proxy/src/listener.rs	38	7	2
fn session_event() in src/core/server/src/listener.rs	38	7	2
fn compose() in src/protocol/admin/src/admin.rs	45	7	2
fn try_from() in src/protocol/resp/src/request/get.rs	26	7	1
fn merge_evict() in src/storage/seg/src/segments/segments.rs	80	7	3
def generate_runscript() in scripts/load_testing/server_config.py	21	6	4
fn session_event() in src/core/admin/src/lib.rs	31	6	2
fn human_stats() in src/core/admin/src/lib.rs	23	6	1
fn json_stats() in src/core/admin/src/lib.rs	28	6	1
fn prometheus_stats() in src/core/admin/src/lib.rs	42	6	1
fn flush() in src/storage/datapool/src/lib.rs	31	6	1
fn set_benchmark() in src/storage/seg/benches/benchmark.rs	32	6	1
fn remove_from() in src/storage/seg/src/hashtable/mod.rs	24	6	4
XXH_FORCE_INLINE xxh_u64 XXH3_mix16B() in legacy/src/storage/seg/xxhash.h	16	5	3
fn read() in src/core/admin/src/lib.rs	49	5	2
fn parse() in src/protocol/thrift/src/lib.rs	20	5	2
fn validate_key() in src/protocol/memcache/fuzz/fuzz_targets/memcache.rs	14	5	1
fn small_key() in src/storage/bloom/benches/bloom.rs	31	5	1
fn bucket_index() in src/storage/seg/src/ttl_buckets/tests.rs	78	5	0
fn merge_compact_chain_len() in src/storage/seg/src/segments/segments.rs	32	5	2
XXH_PUBLIC_API XXH64_hash_t XXH3_64bits_digest() in legacy/src/storage/seg/xxhash.h	15	4	1
XXH_PUBLIC_API XXH128_hash_t XXH3_128bits_digest() in legacy/src/storage/seg/xxhash.h	23	4	1
def generate_config() in scripts/load_testing/server_config.py	17	4	5
fn cas() in src/entrystore/src/seg/memcache.rs	50	4	2
fn ping_benchmark() in src/server/pingserver/benches/benchmark.rs	24	4	1
fn set() in src/protocol/memcache/benches/request_parsing.rs	30	4	1
fn klog() in src/protocol/memcache/src/request/gets.rs	26	4	2
fn klog() in src/protocol/memcache/src/request/get.rs	26	4	2
fn compose() in src/protocol/http/src/response.rs	22	4	2
fn get_benchmark() in src/storage/seg/benches/benchmark.rs	24	4	1
fn try_expand() in src/storage/seg/src/ttl_buckets/ttl_bucket.rs	26	4	2
fn next() in src/storage/seg/src/hashtable/mod.rs	27	4	1