4 # These files grow really big (~1.4G) because of the sample frequency
7 # Profile compiling libcore
8 perf record -F 9000 --call-graph dwarf \
9 -- $RUSTC --crate-type lib build_sysroot/sysroot_src/src/libcore/lib.rs --crate-name core
11 # Generate the flamegraph
12 perf script | ../FlameGraph/stackcollapse-perf.pl | grep cranelift | ../FlameGraph/flamegraph.pl > abc.svg