3 ms·
do you mean configuring the other PMUs to interrupt the core every function call / return? If yes, then yes that is much much higher overhead than processor tr
by rrss 4y ago
do you mean configuring the other PMUs to interrupt the core every function call / return?
If yes, then yes that is much much higher overhead than processor trace.
- tbr1 4y agoIt's worth noting that aside from the overhead, function call / returns are not quite enough to reconstruct the callstack: tailcalls are just regular branch instructions.