Author of the code here. Yes, this is cool, but it instruments your code "This tool is very fast. The average slowdown of the instrumented program is ~2x (see P

Author of the code here. Yes, this is cool, but it instruments your code "This tool is very fast. The average slowdown of the instrumented program is ~2x (see PerformanceNumbers).". backward-cpp doesn't change the generated code in any way. This is only using the debug informations. There is no performance impact, the binary code stays the same.