GDB's built-in record and replay target is too slow to be very useful. It laboriously breaks on every instruction, decodes it, and records its effects; rr is mu

GDB's built-in record and replay target is too slow to be very useful. It laboriously breaks on every instruction, decodes it, and records its effects; rr is much, much smarter. With GDB you might record execution for a short a minute or two, but with rr you can record everything, all the time. It's fast enough that you could record your every-day browsing sessions just in case you encounter a bug. On the other hand, you are technically correct.