WIP: Performance improvements for unwind information

javierhonduco / lightswitch

CPU profiler for Linux written in Rust

MIT License

7 stars 3 forks source link

Closed javierhonduco closed 6 months ago

javierhonduco commented 6 months ago

⚠️ Do not merge yet ⚠️

modify the unwind info in place during redundant info removal and other optimizations (this showed a ~30% reduction in CPU time);
sort out fdes rather than the whole unwind info (in benchmarks this showed no performance improvements, but in machines with less memory with swap enabled, it should help);

javierhonduco commented 6 months ago