Mathieu Poirier <[email protected]> writes: > As such something that used to be a two-step process: > > # echo 1 > /sys/bus/coresight/devices/20070000.etr/enable_sink > # perf record -e cs_etm//u --per-thread uname > > is integrated in a single command: > > # perf record -e cs_etm/@sink=20070000.etr/u --per-thread uname
Can't we simply teach perf record to write 1 to that sysfs attribute and avoid parsing more ascii strings in the kernel? I suspect that would also take way less code. Are there any other use cases for this besides specifying @sink for a ETM? Regards, -- Alex
