On 10/11/22 18:17, Valentin Schneider wrote: > Thinking out loud, it makes way more sense to record a cpumask in the > tracepoint, but perhaps we could have a postprocessing step to transform > those into N events each targeting a single CPU?
My approach on the tracers/rtla is to make the simple things in kernel, and beautify things in user-space. You could keep the tracepoint as a mask, and then make it pretty, like cpus=3-5,8 in user-space. For example with a trace-cmd/perf loadable plugin, libtracefs helper. For rtla I was thinking to make a new tool to parse them. and make it pretty there. -- Daniel
