local count=$($BABELTRACE_BIN --output-format=ctf-metadata $metadata_path | grep $event_name | wc -l)
if [ "$count" -ne "$nr_event_id" ]; then
local count=$($BABELTRACE_BIN --output-format=ctf-metadata $metadata_path | grep $event_name | wc -l)
if [ "$count" -ne "$nr_event_id" ]; then