On Thu, 11 May 2023 20:16:28 +0000 Arnaud Fiorini <arnaud.fior...@polymtl.ca> wrote:
> +The service core library is instrumented with tracepoints using the DPDK > Trace > +Library. These tracepoints allow you to track the service and logical cores > +state. The tracepoints that are on the fast path are compiled out by default. > +To activate the fast path tracepoints, it is necessary to add the > +``enable_trace_fp`` option when building DPDK using meson. > + > +To activate tracing when launching a DPDK program it is necessary to use the > +``--trace`` option to specify a regular expression to select which > tracepoints > +to enable. Here is an example if you want to only specify service core > tracing:: > + > + ./dpdk/examples/service_cores/build/service_cores > --trace="lib.eal.thread*" --trace="lib.eal.service*" > + These state changes are not in the hot path. So they should always be available?
