lockstat(1M) should document the default record size
If you run lockstat, you may sometimes get this warning:
lockstat: warning: ran out of data records (use -n for more)
Unhelpfully, the man page doesn't tell you what the default is (10,000). Unless one does some source diving, you're just shooting in the dark. We should mention the default value in the man page.
Updated by Sachidananda Urs 5 months ago
-n nrecords Maximum number of data records. -T Trace (rather than sample) events [off by default].
-n nrecords Maximum number of data records. The default is 10000. -T Trace (rather than sample) events [off by default]. A maximum of 10000 records are printed by default unless explicitly set to a different value using the -n option.