Self-instrumentation library for rsprof.

This crate provides CPU and heap profiling through self-instrumentation:

• CPU profiling: Timer-based sampling using SIGPROF
• Heap profiling: Custom allocator that tracks allocations

Usage

Add to your Cargo.toml:

[dependencies]
rsprof-trace = { version = "0.1", features = ["profiling"] }

For CPU profiling only:

fn main() {
    // Start CPU profiling at 99Hz
    rsprof_trace::start_cpu_profiling(99);

    // Your application code...

    // Stop profiling (optional, stops on process exit)
    rsprof_trace::stop_cpu_profiling();
}

For heap profiling, use the global allocator:

#[global_allocator]
static ALLOC: rsprof_trace::ProfilingAllocator = rsprof_trace::ProfilingAllocator;

Build with frame pointers for accurate stack traces:

RUSTFLAGS="-C force-frame-pointers=yes" cargo build --release --features profiling