Subject: Re: bug#17419: doc: mention several improvements for performance

From: Paul Eggert <[email-masked]>
Date: Tue, 06 May 2014 09:24:22 -0700

Thanks, I pushed the attached patch, which also mentions a downgrade.
>From 21dad0c6ac46846fbee6eabbb736dfe87fbac508 Mon Sep 17 00:00:00 2001
From: Paul Eggert <[email-masked]>
Date: Tue, 6 May 2014 09:22:48 -0700
Subject: [PATCH] doc: mention performance changes

* NEWS: Discuss recent performance improvements and downgrades.
---
 NEWS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/NEWS b/NEWS
index 7269d57..3a20096 100644
--- a/NEWS
+++ b/NEWS
@@ -44,6 +44,12 @@ GNU grep NEWS                                    -*- outline -*-
   'grep -i ǈ' now matches both 'Ǉ' (U+01C7 LATIN CAPITAL LETTER LJ)
   and 'ǉ' (U+01C9 LATIN SMALL LETTER LJ).
 
+** Improvements
+
+  Performance has improved, typically by 10% and in some cases by a
+  factor of 200.  However, performance of grep -P in UTF-8 locales has
+  gotten worse as part of the fix for the abovementioned crashes.
+
 
 * Noteworthy changes in release 2.18 (2014-02-20) [stable]
 
-- 
1.9.0