/usr/bin/spdk_trace: invalid option -- '-'
usage:
   /usr/bin/spdk_trace <option> <lcore#>
                 '-c' to display single lcore history
                 '-t' to display TSC offset for each event
                 '-s' to specify spdk_trace shm name for a
                      currently running process
                 '-i' to specify the shared memory ID
                 '-p' to specify the trace PID
                      (If -s is specified, then one of
                       -i or -p must be specified)
                 '-f' to specify a tracepoint file name
                      (-s and -f are mutually exclusive)
                 '-T' to show time as delta between current and previous event
                 Without -s or -f, /usr/bin/spdk_trace will look for
                      newest trace file in /dev/shm
                 '-j' to use JSON to format the output