Unknown option: help USAGE: /usr/bin/stackcollapse-perf.pl [options] infile > outfile --pid # include PID with process names [1] --tid # include TID and PID with process names [1] --inline # un-inline using addr2line --all # all annotations (--kernel --jit) --kernel # annotate kernel functions with a _[k] --jit # annotate jit functions with a _[j] --context # adds source context to --inline --addrs # include raw addresses where symbols can't be found --event-filter=EVENT # event name filter [1] perf script must emit both PID and TIDs for these to work; eg, Linux < 4.1: perf script -f comm,pid,tid,cpu,time,event,ip,sym,dso,trace for Linux >= 4.1: perf script -F comm,pid,tid,cpu,time,event,ip,sym,dso,trace If you save this output add --header on Linux >= 3.14 to include perf info.