From 160bcfeed6047b65cf8b9f00c404061b03dfe141 Mon Sep 17 00:00:00 2001 From: Stefan Monnier Date: Mon, 20 Feb 2017 14:05:41 -0500 Subject: [PATCH] * src/insdel.c (make_gap): Improve comment. --- src/insdel.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/insdel.c b/src/insdel.c index 76af3ff9a4c..5a95d41e7ab 100644 --- a/src/insdel.c +++ b/src/insdel.c @@ -572,7 +572,9 @@ make_gap (ptrdiff_t nbytes_added) * With /4096 => 131s * With /∞ => gave up after 858s * Of couse, ideally we should never call set-buffer-multibyte on - * a non-empty buffer (e.g. use buffer-swa-text instead). */ + * a non-empty buffer (e.g. use buffer-swap-text instead). + * We chose /64 because it already brings almost the best performance while + * limiting the potential wasted memory to 1.5%. */ make_gap_larger (max (nbytes_added, (Z - BEG) / 64)); #if defined USE_MMAP_FOR_BUFFERS || defined REL_ALLOC || defined DOUG_LEA_MALLOC else -- 2.39.5