# Comparisons  - OCaml - Scala - C# - Rust # Underlying problems  - LOH allocations - Build does too much for deltas - GC Gen 2 # Major problems  - Script start up CLI - Build on Linux & Mac - Glitches in test discovery - Edit & test workflow - Edit & run workflow - Edit & check workflow - Unnecessary rebuilds # Hosted compiler problems  - Stamp overflow - Non-deterministic - Memory leaks - Infinite loops - Stay resident compiler - Permission elevation # Minor problems  - Benchmarking - Squigglies - Colorization - Debug - Press dot # Incremental phases  - Incremental parsing file - Incremental checking file - Incremental optimization for deltas - Cascading DLL builds - Incremental DLL builds - Incremental ILxGen for deltas - Incremental assembly generation - Incremental PDB generation for deltas # Community guidelines  - Community leadership - Community enablement for tool performance - Performance acceptance criteria - Performance running - Docs for tooling performance