diff options
| -rw-r--r-- | reftable/merged.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/reftable/merged.c b/reftable/merged.c index fb9978d798..0f74a14a77 100644 --- a/reftable/merged.c +++ b/reftable/merged.c @@ -107,6 +107,14 @@ static int merged_iter_next_entry(struct merged_iter *mi, struct pq_entry top = merged_iter_pqueue_top(mi->pq); int cmp; + /* + * When the next entry comes from the same queue as the current + * entry then it must by definition be larger. This avoids a + * comparison in the most common case. + */ + if (top.index == entry.index) + break; + cmp = reftable_record_cmp(&top.rec, &entry.rec); if (cmp > 0) break; |