Basic rr repo stats
13 days ago

rr-debugger/rr is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.

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NOTE: The number of mentions on this list indicates mentions on common posts. Hence, a higher number means a better rr alternative or higher similarity.


Posts where rr has been mentioned. We have used some of these posts to build our list of alternatives and similar projects - the last one was on 2021-03-16.
  • Developer tools can be magic. Instead, they collect dust | 2021-03-28
    Debuggers are very specific tools, and I've never really liked them.

    Basically, you get a tiny view of what your code is doing, and have to slowly build a mental model of what's going on through time. I have found that prints and code reading (in a good IDE which is able to track variable references!) are often enough, and usually faster,for the kind of software I write.

    Now, things are getting better: mozilla's RR is a game changer(reverse debugging on actual, large projects ), and more recently, pernosco (built on RR but very close to science-fiction) has at long last made me like debuggers again.

  • Ask HN: What are some “10x” softiware product innovations you have experienced? | 2021-03-16
    The rr debugger [1]. I _desperately_ missed it after switching to a mac laptop -- to the point that I now have an older linux system which exists primarily to run rr.

    I've _heard_ that Pernosco [2] (partly built on rr, AFAIK) is even more revolutionary, but haven't yet tried it myself.


  • Intel PIII: Is Big Brother Inside? (1999) | 2021-03-14
    And is why works very well on Intel but barely on AMD.
  • C Deep | 2021-02-27
    rr - Debugger that records non-deterministic executions to allow for deterministic debugging. BSD-2-Clause
  • Debugging a flaky Go test with Mozilla rr | 2021-02-22
    It can be made to work in everything except VirtualBox, see:
  • Looking for More Debugger | 2021-01-29
    I need to throw a million +1's at the `rr` suggestion. it's really great. It's a shame that it doesn't work on ARM processors, but there are good fundamental reasons why it doesn't (it's basically impossible iirc[0])

    In terms of U.I's I found `gdb-many-windows` to be the nicest i found. While I hate almost everything about the platform, I have to concede that visual studio's debugging integration is actually really good. The only thing I found annoying was that I needed to use Visual Studio for it! (emacs on windows could be annoying enough that I got used to it eventually, but still preferred by linux environment, this is back when working on a cross platform C++ project if that much weren't already clear).


  • 45,000+ lines of Rust code later: An update on the Record & Debug Tool (rd) | 2020-12-28
    BTW there is initial Linux ARM64 support for rr (BTW rd has not ported over ARM64 support yet). Please see rr 5.4.0 release announcement | 2020-12-28
    The best course of action would be to file an issue in the rr issue tracker for your particular IDE -- the rr folks are extremely responsive and should be able to provide answers/pointers.
  • Postmortem of outage on 20th December | 2020-12-24
    not sure if rr can be used here to record and replay the bug, so to help debug it.