layout

mantis-layout

Struct layout and cache-line analysis for the Mantis SDK.

std-only tooling crate.

Purpose

Reports size, alignment, and cache-line occupancy for hot-path data structures. Used to verify that performance-critical types have the expected memory layout (e.g., head/tail on separate cache lines).

Usage

cargo run -p mantis-layout

As a library

use mantis_layout::inspect;

let info = inspect::<u64>("u64");
println!("{info}");
// Type: u64
//   size:        8 bytes
//   align:       8 bytes
//   cache lines: 1 (64B)

Output

For each inspected type, prints:

• size in bytes
• alignment in bytes
• cache lines occupied (assuming 64-byte lines)