Don't evict when merging.
@@ -226,11 +226,13 @@ const bigfree = {p, sz
cache[i].sz += sz
cache[i].p = p
evictidx = -1
+ evictsz = 0
break
/* merge in behind existing block */
elif endblk == p
cache[i].sz += sz
evictidx = -1
+ evictsz = 0
break
;;
/* evict */
