Fix typo in arc_summary3

This is a simple fix for a typo ("perfetch" rather than "prefetch")
in arc_summary3.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Jason Cohen <jwittlincohen@gmail.com>
Closes #8499

diff --git a/cmd/arc_summary/arc_summary3 b/cmd/arc_summary/arc_summary3
index e67cd90f71e3df5318d5fb98c686a08dd49e6c72..fc5e1e4b64c138c8b8608d3f1974d0d109aa67aa 100755 (executable)
--- a/cmd/arc_summary/arc_summary3
+++ b/cmd/arc_summary/arc_summary3
@@ -594,7 +594,7 @@ def section_archits(kstats_dict):
     print()
     print('Cache hits by data type:')
     dt_todo = (('Demand data:', arc_stats['demand_data_hits']),
-               ('Demand perfetch data:', arc_stats['prefetch_data_hits']),
+               ('Demand prefetch data:', arc_stats['prefetch_data_hits']),
                ('Demand metadata:', arc_stats['demand_metadata_hits']),
                ('Demand prefetch metadata:',
                 arc_stats['prefetch_metadata_hits']))