4 ms·

You might also find https://rr-project.org/ https://rr-project.org/ interesting -- it lets you step backwards too.

• fooker 7y ago
  gdb supports reverse debugging too
• Enginerrrd 7y ago
  Interesting. Without letting storage explode, I can't think of an easy way to do this since computation isn't really reversible.
  • saagarjha 7y ago
    You can keep track of the before and after states whenever you do something nonreversible, like a syscall.
    • Doxin 7y ago
      And even then you can probably just store the diff instead of a full image. And even then if you run out of memory you can just start evicting the oldest snapshots.
    • Enginerrrd 7y ago
      There's a lot of nonreversability in the way a processor interacts with memory though.