From 2b8af56a53d52f64de9b51a53fd34a5ece4c1278 Mon Sep 17 00:00:00 2001
From: Kevin Ryde <user42@zip.com.au>
Date: Fri, 28 Oct 2005 23:09:53 +0000
Subject: [PATCH] Add output string port speedup.

---
 NEWS | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/NEWS b/NEWS
index e2e22ce56..debf89cec 100644
--- a/NEWS
+++ b/NEWS
@@ -56,6 +56,13 @@ These are now available in the default environment.
 
 ** make-stack can now correctly construct a stack from a continuation.
 
+** Output string port speed problems have been improved
+
+Output string port (open-output-string, etc) writing was very slow at
+about 50 to 100 kbytes or above.  This affected various things, in
+particular regexp-substitute/global on a large string, and stack
+backtraces with a large object.
+
 * Changes to the C interface