[Lluís Vilanova] > A possible check could be: > > if [ `/sbin/sysctl kernel.perf_event_paranoid` -gt 2 ]; then > echo "ERROR: perf is too paranoid for us" > exit 1 > fi > > This would build-depend on procps (which installs sysctl).
This seem like a good approach. Perhaps explain in the message how to get the build working too? I found <URL: http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar > explaining the values 2 to -1 for perf_event_paraniod. I'm using kernel 3.16 myself, and here the default value seem to be 1. I guess coz should be patched too, to explain why it isn't working instead of returning the fairly incomprehensive message it give today when the perf call fail -- Happy hacking Petter Reinholdtsen
