Hmmm, don't know but under Sonoma I see very few dtrace probe points. None at all under fbt provider, where there used to be 10s of thousands. Indeed most seem to be there as a result of independent (non Apple) software having dtrace points built in.
I have not yet disabled SIP as there is no point if there are so few hook points left. (Might the probes appear if SIP allow dtrace is set? it seems unlikely to me)
M1 mini...
cwinte
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FYI I recently came across a Python based CLI graphic display of data from powermetrics on github: asitop
Though it accumulates a file of source data in /tmp that grows at 1M per minute and does not seem to clean up on exit. I poinmted this out to dev and suggested some form of pipe might be better...