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rr

Record and deterministically replay debugging sessions

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Development linux C++ MIT

Description

rr is a lightweight tool for recording, replaying, and debugging the execution of applications. It allows you to record a failure once and then debug the recording deterministically as many times as you want, making it invaluable for reproducing intermittent bugs.

AI Summary

Record and deterministically replay application execution for debugging

Capabilities

  • + Record program execution including system calls
  • + Replay recordings deterministically
  • + Debug with GDB on recorded sessions
  • + Reproduce intermittent failures reliably

Use When

  • → When debugging intermittent or hard-to-reproduce bugs
  • → When you need deterministic replay of program execution

Avoid When

  • x When debugging simple, easily reproducible issues
  • x On non-Linux platforms
View AGENTS.md for rr