commit aec9ff2: [Minor] Grow small strings more quickly

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2022-06-23 21:57:19 +0100
URL: https://github.com/rspamd/rspamd/commit/aec9ff27cb3eee126594904282610d619ff57416 (HEAD -> master)

[Minor] Grow small strings more quickly

---
 src/libutil/fstring.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/libutil/fstring.c b/src/libutil/fstring.c
index 3f3af5357..3698bdb3f 100644
--- a/src/libutil/fstring.c
+++ b/src/libutil/fstring.c
@@ -125,7 +125,12 @@ rspamd_fstring_suggest_size (gsize len, gsize allocated, gsize needed_len)
 {
 	gsize newlen, optlen = 0;
 
-	newlen = MAX (len + needed_len, 1 + allocated * 3 / 2);
+	if (allocated < 4096) {
+		newlen =  MAX (len + needed_len, allocated * 2);
+	}
+	else {
+		newlen = MAX (len + needed_len, 1 + allocated * 3 / 2);
+	}
 
 #ifdef HAVE_MALLOC_SIZE
 	optlen = sys_alloc_size (newlen + sizeof (rspamd_fstring_t));