notes from 02009 on #tracing with #Linux tracepoints, including the use of #perf. On Ubuntu you need to install, for example, linux-tools-5.8.0-40-generic if you’re running linux-image-5.8.0-40-generic.
on 02021-02-03how to use #Linux kernel #tracing tracepoints effectively and analyze #performance with #perf
on 02021-02-03how to define #Linux kernel #tracing tracepoints
on 02021-02-03how to use #Linux kernel #tracing tracepoints
on 02021-02-03#DTrace #tracing probes have no execution time cost when not enabled: “No instrumented code is present for inactive probes, so your system does not experience any kind of performance degradation when you are not using DTrace. Once your experiment is complete and the dtrace command exits, all of the probes you used are automatically disabled and their instrumentation is removed, returning your system to its exact original state.”
on 02021-02-03