From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH 6/6] RelNotes: add more notes about PCRE in 2.14
Date: Thu, 20 Jul 2017 14:19:27 +0000 [thread overview]
Message-ID: <20170720141927.18274-7-avarab@gmail.com> (raw)
In-Reply-To: <20170720141927.18274-1-avarab@gmail.com>
In-Reply-To: <xmqq7ez6hk2y.fsf@gitster.mtv.corp.google.com>
We were missing any mention that:
- PCRE is now faster with JIT
- That it's now faster than the other regex backends
- That therefore you might want to use it by default, but beware of
the incompatible syntax.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
Documentation/RelNotes/2.14.0.txt | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/Documentation/RelNotes/2.14.0.txt b/Documentation/RelNotes/2.14.0.txt
index fb6a3dba31..a6a1cb963b 100644
--- a/Documentation/RelNotes/2.14.0.txt
+++ b/Documentation/RelNotes/2.14.0.txt
@@ -88,7 +88,16 @@ UI, Workflows & Features
learned to say "it's a pathspec" a bit more often when the syntax
looks like so.
- * Update "perl-compatible regular expression" support to enable JIT.
+ * Update "perl-compatible regular expression" support to enable
+ JIT.
+
+ This makes grep.patternType=perl (and -P and --perl-regexp) much
+ faster for "git grep" and "git log", and is generally faster than
+ the system's POSIX regular expression implementation. Users
+ concerned with "git grep" performance or "git log --grep"
+ performance might want to try setting grep.patternType=perl. Note
+ that the syntax isn't compatible with git's default of
+ grep.patternType=basic.
* "filter-branch" learned a pseudo filter "--setup" that can be used
to define common functions/variables that can be used by other
--
2.13.2.932.g7449e964c
next prev parent reply other threads:[~2017-07-20 14:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-13 23:43 [ANNOUNCE] Git v2.14.0-rc0 Junio C Hamano
2017-07-14 23:17 ` Ævar Arnfjörð Bjarmason
2017-07-15 4:09 ` Christian Couder
2017-07-15 10:09 ` Ævar Arnfjörð Bjarmason
2017-07-17 20:41 ` Junio C Hamano
2017-07-18 20:03 ` Junio C Hamano
2017-07-20 14:19 ` [PATCH 0/6] 2.14 RelNotes improvements Ævar Arnfjörð Bjarmason
2017-07-20 20:35 ` Junio C Hamano
2017-07-21 11:03 ` Ævar Arnfjörð Bjarmason
2017-07-20 14:19 ` [PATCH 1/6] RelNotes: mention "log: add -P as a synonym for --perl-regexp" Ævar Arnfjörð Bjarmason
2017-07-20 14:19 ` [PATCH 2/6] RelNotes: mention "log: make --regexp-ignore-case work with --perl-regexp" Ævar Arnfjörð Bjarmason
2017-07-20 14:19 ` [PATCH 3/6] RelNotes: mention "sha1dc: optionally use sha1collisiondetection as a submodule" Ævar Arnfjörð Bjarmason
2017-07-20 14:19 ` [PATCH 4/6] RelNotes: mention that PCRE v2 exposes the same syntax Ævar Arnfjörð Bjarmason
2017-07-20 15:24 ` Junio C Hamano
2017-07-20 14:19 ` [PATCH 5/6] RelNotes: remove duplicate mention of PCRE v2 Ævar Arnfjörð Bjarmason
2017-07-20 15:26 ` Junio C Hamano
2017-07-20 14:19 ` Ævar Arnfjörð Bjarmason [this message]
2017-07-20 19:11 ` [PATCH 6/6] RelNotes: add more notes about PCRE in 2.14 Junio C Hamano
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