test: add benchmarking script

[roflmuffin]

Baseline:

Benchmark Results

• Branch: benchmarking
• Commit: ae604f1
• Date: 2026-03-23T06:10:56.0323144Z
• Iterations: 1,000,000
• Warmup: 100,000

Entity Lifecycle

Benchmark	ns/call	calls/sec	total ms
Entity create+spawn info_target	11,029	90,672	11022.37
GetPlayerFromSlot	580	1,723,115	580.34

GameEvent

Benchmark	ns/call	calls/sec	total ms
GameEvent Fire	4,211	237,494	4210.64

Mixed

Benchmark	ns/call	calls/sec	total ms
Mixed (4 natives/iter)	338	2,954,253	1353.98

NetMessage

Benchmark	ns/call	calls/sec	total ms
NetMessage Send	18,733	53,380	18733.49

Primitive Args

Benchmark	ns/call	calls/sec	total ms
GetConvarFlags (ushort → ulong)	415	2,412,189	414.56
GetConvarType (ushort → short)	422	2,369,029	422.11

Primitive Return

Benchmark	ns/call	calls/sec	total ms
GetEngineTime (double, no args)	251	3,988,634	250.71
GetMaxClients (int, no args)	234	4,278,928	233.70
GetServerCurrentTime (float, no args)	257	3,888,808	257.15
GetTickCount (int, no args)	220	4,553,958	219.59
GetTickInterval (float, no args)	230	4,356,317	229.55
IsServerPaused (bool, no args)	301	3,327,530	300.52

Schema

Benchmark	ns/call	calls/sec	total ms
GetDeclaredClass (CBodyComponent)	475	2,103,549	475.39
GetSchemaValue (Health)	124	8,092,199	123.58
SchemaOffset 4 keys	103	9,694,502	412.60
SchemaOffset cached	99	10,092,039	99.09

String Push

Benchmark	ns/call	calls/sec	total ms
FindConvar (string → pointer)	475	2,106,684	474.68
PushString 200 bytes	766	1,304,712	766.45
PushString 2000 bytes	2,601	384,477	2600.93
PushString 9 bytes	432	2,317,416	431.52
PushString 9000 bytes (overflow)	9,880	101,214	9880.03

String Return

Benchmark	ns/call	calls/sec	total ms
GetConvarName (ushort → string)	409	2,443,698	409.22
GetMapName (string, no args)	368	2,715,072	368.31

Virtual Function

Benchmark	ns/call	calls/sec	total ms
VFunc IsPlayerPawn (high-level API)	2,903	344,529	2902.52
VFunc IsPlayerPawn (pre-created delegate)	758	1,319,240	758.01