diff --git a/src/test/recovery/t/047_checkpoint_physical_slot.pl b/src/test/recovery/t/047_checkpoint_physical_slot.pl
index 9e98383e30e..6299f705fd0 100644
--- a/src/test/recovery/t/047_checkpoint_physical_slot.pl
+++ b/src/test/recovery/t/047_checkpoint_physical_slot.pl
@@ -46,7 +46,6 @@ $node->safe_psql('postgres',
 # Run checkpoint to flush current state to disk and set a baseline.
 $node->safe_psql('postgres', q{checkpoint});
 
-# Insert 2M rows; that's about 260MB (~20 segments) worth of WAL.
 $node->advance_wal(20);
 
 # Advance slot to the current position, just to have everything "valid".
@@ -57,7 +56,6 @@ $node->safe_psql('postgres',
 # Run another checkpoint to set a new restore LSN.
 $node->safe_psql('postgres', q{checkpoint});
 
-# Another 2M rows; that's about 260MB (~20 segments) worth of WAL.
 $node->advance_wal(20);
 
 my $restart_lsn_init = $node->safe_psql('postgres',