Record and replay debugging is the process of recording the execution of a software program so that it may be played back within a debugger to help diagnose and resolve defects.[1] The concept is analogous to the use of a flight data recorder to diagnose the cause of an airplane flight malfunction.[2]
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Transcription
Recording and replaying
Record and replay debuggers record application state at every step of the program's process and thread execution, including memory interactions, deterministic and non-deterministic inputs, system resource status, and store it to disk in a log.[3] The recording allows the program to be replayed again and again, and debugged exactly as it happened.
Usage
Recordings can be made in one location and replayed in another,[4] which makes it useful for remote debugging.
Record and replay debugging is particularly useful for debugging intermittent and non-deterministic defects, which can be difficult to reproduce.
Record and replay debugging technology is often fundamental to reverse debugging and time travel debugging.
Record and replay debuggers
- GDB (GNU)[5]
- LiveRecorder (Undo)[6]
- rr (Mozilla)
- TotalView's ReplayEngine (RogueWave)[7]
- PyTrace for Python[8]
References
- ^ Mozilla (2017). "Engineering Record And Replay For Deployability Extended Technical Report". arXiv:1705.05937 [cs.PL].
- ^ Zicari, Roberto. "On Software Reliability. Interview with Barry Morris and Dale Vile". ODBMS Industry Watch. ODBMS Industry Watch. Retrieved 2 April 2019.
- ^ Undo, Ltd. "System and method for debugging of computer programs". Google Patents. US Patent Office. Retrieved 23 February 2016.
- ^ Undo, Ltd. "Remote recording". Undo Documentation. Undo, Ltd. Retrieved 1 October 2019.
- ^ "Process Record and Replay (Debugging with GDB)".
- ^ "LiveRecorder - Undo".
- ^ "TotalView for HPC".
- ^ "PyTrace Time Travel Debugger for Python".
This page was last edited on 18 August 2022, at 11:55