Where CPU is the processor number, TSC is the record's timestamp
(the value of the CPU cycle counter), EVENT is the event ID and
D1...D5 are the trace data.
Data is dumped onto the standard output (which must not be a TTY) or a
FILE specified on the command line.
The output should be parsed using the tool xentrace_format, which can
produce human-readable output in ASCII format.
Options
-t, --log-thresh=l
set the threshold number, l, of new records required to trigger a write of
all new records to the output
-s, --poll-sleep=p
set the time, p, (in milliseconds) to sleep between polling the buffers
for new data.