Performance Deep Dive

Sannr was developed around the single premise that enterprise metadata scanning overheads destroy horizontal scaling metrics.

Throughput Comparisons

Tested on an Intel Core i7-4980HQ equivalent CPU, parsing heavily burdened enterprise entities across concurrent IHost implementations.

A "Simple" Request (3 string fields):

• DataAnnotations: ~2.8 microseconds.
• FluentValidation: ~1.3 microseconds.
• Sannr: ~0.2 microseconds.

A "Complex" Request (15 constrained hierarchy elements):

• DataAnnotations: ~12.1 microseconds.
• FluentValidation: ~5.6 microseconds.
• Sannr: ~0.6 microseconds.

If you serve roughly 10,000 RPS at scale, older metadata models steal continuous seconds per minute exclusively reflecting type hierarchies. We remove that penalty instantly.

Garbage Collection Pressure

Sannr is the single lowest-allocating bounds validation tool. Because it creates no anonymous types, reflection caches, or expression dynamic trees:

A complex evaluation allocates exactly 392 Bytes. DataAnnotations allocates 8.1 Kilobytes.

This forces Gen0 heap cleanup substantially more aggressively on standard workloads, interrupting synchronous processes significantly less frequently with Sannr.

Serverless Cost Impact

Cold starts incur tremendous compiler metadata inspection. By natively shifting execution to AOT, your serverless IHost doesn't inspect application models before routing a packetthe constraints are compiled seamlessly in MSIL static bounds directly upon the assembly launch.