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rr-debugger/rr

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Record and Replay Framework

68 mentions on Hacker News by 57 people: 1 story, 67 comments · first 2014-03-26 · latest 2025-06-28

Mentions per year 68 mentions · busiest year 2019 (11)
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  1. …the test in a much smaller scope with something heavy like Valgrind or a Record-Replay debugger ( https://github.com/mozilla/rr ). If you write tests regularly during development then you can also isolate and test parts fast when something…
    comment by de_watcher · 2018-07-11 · in Why Isn't Debugging Treated as a First-Class Activity?
  2. It's a bummer that perf counters are not accurate on TR/ryzen, blocking rr from working on it. https://github.com/mozilla/rr/issues/2034#issuecomment-30444... Edit: typo
    comment by glandium · 2018-06-11 · in Intel 28-core fantasy vs. AMD 32-core reality
  3. found it: https://github.com/mozilla/rr
    comment by jakeogh · 2018-01-12 · in Spectre and the end of langsec
  4. …- General performance analysis. For this more counters is generally incrementally better. - Running https://github.com/mozilla/rr . This requires the retired-branch-counter to be available (and accurate - sometimes virtualization messes…
    comment by KenoFischer · 2017-11-29 · in EC2 Bare Metal Instances with Direct Access to Hardware
  5. …from logging). At one time we even used rr. rr is really cool, everyone should check this out. https://github.com/mozilla/rr
    comment by LaFolle · 2017-11-17 · in Understanding Go panic output
  6. …application can see an additional slowdown if it takes advantage of multicore parallelism." [0]: https://github.com/mozilla/rr/wiki/Usage#recording-an-execut...
    comment by kuwze · 2017-10-07 · in Time Travel Debugging
  7. Mozilla has a similar tool, check it out: https://github.com/mozilla/rr
    comment by DSingularity · 2017-10-07 · in Time Travel Debugging
  8. Unfortunately for me, the fact that rr can't run on Ryzen CPUs is a dealbreaker. :( https://github.com/mozilla/rr/issues/2034
    comment by heycam · 2017-08-10 · in AMD Ryzen Threadripper 1950X and 1920X Review
  9. https://github.com/mozilla/rr/issues/1373 This disappoints me, as I'd love to see rr ported to PowerPC, which is another LL/SC architecture that I suspect might run into this issue.
    comment by ajdlinux · 2017-06-15 · in Another Case of Obscure CPU Nondeterminism
  10. rr := https://github.com/mozilla/rr rr is a lightweight tool for recording and replaying execution of applications (trees of processes and threads).
    comment by dom0 · 2017-06-14 · in Another Case of Obscure CPU Nondeterminism
  11. …address to see where it gets overwritten. Only downside is that it can't support shared memory. [1] https://github.com/mozilla/rr
    comment by Asooka · 2017-05-10 · in Turning Sublime Text into a Lightweight Python IDE
  12. I would strongly suggest you check out rr - Mozilla's Record and Replay framework https://github.com/mozilla/rr . Don't let the name confuse you - it's not specific at all to Firefox. It can record a process's execution and replay it in…
    comment by Asooka · 2017-01-11 · in Working on Chrome made me develop a tool for reading source code
  13. …gdb, but seems to have a straightforward workflow (at first glance at least, I've not used it yet). https://github.com/mozilla/rr/wiki/Usage
    comment by ZenoArrow · 2016-07-15 · in “Give me 15 minutes and I'll change your view of GDB” [video]
  14. he just committed 7 hours ago. https://github.com/mozilla/rr/commit/ef7691ac8a25ec9767ba744...
    comment by gansai · 2016-03-02 · in Leaving Mozilla
  15. rr can compress traces, so while it's big, it's not as big as you think. https://github.com/mozilla/rr/issues/700
    comment by sanxiyn · 2014-12-31 · in Rr records nondeterministic executions and debugs them deterministically
  16. There's also Mozilla's rr https://github.com/mozilla/rr .
    comment by adamnemecek · 2014-11-09 · in Sherlock Holmes Debugging
  17. Link to the project: http://rr-project.org/ And the github: https://github.com/mozilla/rr (On a side note, I think the gradient background is worse than a plain white background, when removing it, it become a lot more readable)
    comment by Dorian-Marie · 2014-03-26 · in Mozilla's low-overhead open source replay debugger