sentipy

Element Type	SPECIES_64	SPECIES_128	SPECIES_256	SPECIES_512
byte (8-bit)	8 lanes	16 lanes	32 lanes	64 lanes
short (16-bit)	4 lanes	8 lanes	16 lanes	32 lanes
int (32-bit)	2 lanes	4 lanes	8 lanes	16 lanes
long (64-bit)	1 lane	2 lanes	4 lanes	8 lanes
float (32-bit)	2 lanes	4 lanes	8 lanes	16 lanes
double (64-bit)	1 lane	2 lanes	4 lanes	8 lanes

sentipy

Arena Type	Lifetime	Thread Safety	Cleanup	Use Case
Global	JVM lifetime	Thread-safe	Never	Static resources
Automatic	GC-managed	Thread-safe	Non-deterministic	Simple allocations
Confined	Explicit close	Single-thread	Deterministic	Performance-critical
Shared	Explicit close	Thread-safe	Deterministic	Concurrent access