Summary

EventLog framework exists in the GHC RTS to support profiling of GHC run-time events, such as capability states. A visualizer is currently under development for viewing the profiling information.

Design

• EventLog framework is located in ghc_root/rts/eventlog/
• Library to parse EventLog files for any visualizer, which relies upon the Data.Binary library: ghc-events.
• Visualizer: ThreadScope?

Code repository

• Available in GHC 6.10.x in ghc_root/rts/eventlog
•  ghc-events: EventLog binary file parser for profilers
•  ThreadScope: thread-level profiler for GHC EventLog events

Publications

•  Parallel Performance Tuning for Haskell (Don Jones Jr., Simon Marlow, Satnam Singh) Haskell '09: Proceedings of the second ACM SIGPLAN symposium on Haskell, Edinburgh, Scotland, ACM, 2009

Contributors

• Satnam Singh
• Simon Marlow
• Donnie Jones <donnie@…>