From: Eric Sunshine <sunshine@sunshineco.com>
To: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Cc: Git List <git@vger.kernel.org>
Subject: Re: [PATCH/RFC 3/4] attr: do not attempt to expand when we know it's not a macro
Date: Tue, 9 Dec 2014 18:27:39 -0500 [thread overview]
Message-ID: <CAPig+cSej-7iFOJcprEnkqhsbt87htZ+OB37HE6RuiXdG_F3Yw@mail.gmail.com> (raw)
In-Reply-To: <1418133205-18213-4-git-send-email-pclouds@gmail.com>
On Tue, Dec 9, 2014 at 8:53 AM, Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
> Keep track of all recognized macros in the new "maybe_macro" field.
> This this field is true, it _may_ be a macro (depending on what's in
s/This this/If this/
> the current attr stack). But if the field is false, it's definitely
> not a macro, no need to go through the whole attr stack in
> macroexpand_one() to search for one.
>
> Without this, "git grep abcdefghi" on git.git hits the inner loop in
> macroexpand_one() about 2500 times. With this, it's about 60 times.
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
next prev parent reply other threads:[~2014-12-09 23:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-09 13:53 [PATCH/RFC 0/4] some attr optimizations Nguyễn Thái Ngọc Duy
2014-12-09 13:53 ` [PATCH 1/4] attr.c: rename global var attr_nr to git_attr_nr Nguyễn Thái Ngọc Duy
2014-12-09 23:54 ` Junio C Hamano
2014-12-09 13:53 ` [PATCH 2/4] attr.c: split path processing code out of collect_all_attrs() Nguyễn Thái Ngọc Duy
2014-12-09 13:53 ` [PATCH/RFC 3/4] attr: do not attempt to expand when we know it's not a macro Nguyễn Thái Ngọc Duy
2014-12-09 23:27 ` Eric Sunshine [this message]
2014-12-09 23:56 ` Junio C Hamano
2014-12-09 13:53 ` [PATCH/RFC 4/4] attr: avoid heavy work when we know the specified attr is not defined Nguyễn Thái Ngọc Duy
2014-12-10 0:18 ` Junio C Hamano
2014-12-15 0:50 ` Duy Nguyen
2014-12-15 17:30 ` Junio C Hamano
2014-12-27 23:39 ` [PATCH v2 0/3] some attr optimizations Nguyễn Thái Ngọc Duy
2014-12-27 23:39 ` [PATCH v2 1/3] attr.c: rename arg name attr_nr to avoid shadowing the global one Nguyễn Thái Ngọc Duy
2014-12-27 23:39 ` [PATCH v2 2/3] attr: do not attempt to expand when we know it's not a macro Nguyễn Thái Ngọc Duy
2014-12-27 23:59 ` Eric Sunshine
2014-12-27 23:39 ` [PATCH v2 3/3] attr: avoid heavy work when we know the specified attr is not defined Nguyễn Thái Ngọc Duy
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