Call frames
- Parameters passed to the function
- Local variables of the function
- A snapshot of registers to use and restore
- A return address
- A frame pointer (for debugging)
Online compilers
- https://godbolt.org – go-to resource for playing around with C++ features
- https://cppinsights.io
- https://labs.play-with-docker.com – requires a Docker account, handy for testing images
- https://quick-bench.com
Profiling resources
Tools
- valgrind
- perf
/usr/bin/time --verbose- Tracy
- htop
- Google Benchmark
- gprof
Graph tools
Compiler options
- https://docs.microsoft.com/en-us/visualstudio/profiling/beginners-guide-to-performance-profiling?view=vs-2019
- https://docs.microsoft.com/en-us/cpp/build/reference/o-options-optimize-code?view=msvc-160
- https://docs.microsoft.com/en-us/visualstudio/debugger/how-to-debug-optimized-code?view=vs-2019
- https://www.youtube.com/watch?v=yRKRqzekLU4
- https://www.youtube.com/watch?v=THE14sSDT6A&feature=youtu.be
- https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
Enabling in gcc
Use -p for prof and -pg for gprof. But it will take longer to run.