borkmann/netsniff-ng — comment on commit 2c0c93ea8d5f046883521dec50ee3e3354a8ca70
File: src/CMakeLists.txt line 17
By eroullit:

With -O3, there is a much more aggressive function inlining and loop unrolling which will make the executable larger. O2 is used the most because it does not involve space-speed tradeoffs