From 282a3faa1784783e2e2cb3698183927b3927b950 Mon Sep 17 00:00:00 2001
From: Qi Wang <interwq@gwu.edu>
Date: Mon, 13 Nov 2017 11:41:53 -0800
Subject: [PATCH] Use extent_heap_first for best fit.

extent_heap_any makes the layout less predictable and as a result incurs more
fragmentation.
---
 src/extent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/extent.c b/src/extent.c
index c8a30907..466e0b2a 100644
--- a/src/extent.c
+++ b/src/extent.c
@@ -370,7 +370,7 @@ extents_best_fit_locked(tsdn_t *tsdn, arena_t *arena, extents_t *extents,
 	    (size_t)pind);
 	if (i < NPSIZES+1) {
 		assert(!extent_heap_empty(&extents->heaps[i]));
-		extent_t *extent = extent_heap_any(&extents->heaps[i]);
+		extent_t *extent = extent_heap_first(&extents->heaps[i]);
 		assert(extent_size_get(extent) >= size);
 		return extent;
 	}