Following the onload_install, the example applications: rx_timestamping and tx_timestamping are located in the following directory:
onload-<version>/build/gnu_x86_64/tests/onload/hwtimestamping
Using earlier versions of Onload the user should run the make command in the following directory to build example timestamping applications:
openonload-<version>/src/tests/onload/hwtimestamping