Profiling Uhyve

Using perf

> sudo perf record -g -F 12000 target/release/uhyve path/to/my/bin
> sudo perf script -i perf.data > serial.perf

Open serial.perf in profiler.firefox.com.

Keep in mind that both the kernel and Uhyve should be built in release mode.

Valgrind & KCachegrind

1. Add debug info to the release profile in the Cargo.toml:

   [profile.release]
   debug = true

2. Execute Uhyve with valgrind (adapt the kernel and the arguments if necessary)

   > valgrind --tool=callgrind  --dump-instr=yes --collect-jumps=yes --simulate-cache=yes target/release/uhyve data/
   x86_64/hello_world

3. Investigate the run with KCachegrind

   > kcachegrind callgrind.out.123456

   (of course: adapt the filename of the callgrind-file)