From: Elijah Newren <newren@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Goss Geppert <gg.oss.dev@gmail.com>,
Git Mailing List <git@vger.kernel.org>,
christian w <usebees@gmail.com>,
Derrick Stolee <derrickstolee@github.com>
Subject: Re: [PATCH v2 1/2] dir: consider worktree config in path recursion
Date: Tue, 24 May 2022 07:29:09 -0700 [thread overview]
Message-ID: <CABPp-BGXRzYCvyM38dEUvQ125+VtRu++7L9UiRz98u+1=Lov7A@mail.gmail.com> (raw)
In-Reply-To: <xmqq7d6sm3e0.fsf@gitster.g>
On Wed, May 11, 2022 at 9:37 AM Junio C Hamano <gitster@pobox.com> wrote:
>
> Goss Geppert <gg.oss.dev@gmail.com> writes:
>
> > diff --git a/dir.c b/dir.c
> > index f2b0f24210..a1886e61a3 100644
> > --- a/dir.c
> > +++ b/dir.c
> > @@ -1893,9 +1893,31 @@ static enum path_treatment treat_directory(struct dir_struct *dir,
>
[...]
>
> > + real_gitdir = real_pathdup(the_repository->gitdir, 0);
>
> This function is repeatedly called during the traversal.
>
> How expensive is it to keep calling real_pathdup() on the constant
> the_repository->gitdir just in case it might be the same as our true
> GIT_DIR?
I agree that treat_directory is called many times, but this
real_pathdup() call is inside the "if (nested_repo)" block, so this
new real_pathdup() invocation should occur very seldom. Or are you
worried about cases where users have *very* large numbers of bare
repositories nested under the working directory? Even in that case,
which seems pathological to me, I'd suspect the
is_nonbare_repository_dir() ->
read_gitfile_gently()/is_git_directory() codepath (used to determine
the value of nested_repo) would be much more expensive than this call
to real_pathdup(), so would it be worth trying to optimize this
real_pathdup() call away even in that rare case?
next prev parent reply other threads:[~2022-05-24 14:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-05 20:32 [RFC PATCH 0/1] dir: consider worktree config in path recursion Goss Geppert
2022-05-05 20:32 ` [RFC PATCH 1/1] " Goss Geppert
2022-05-07 3:26 ` Elijah Newren
2022-05-07 17:59 ` oss dev
2022-05-06 17:02 ` [RFC PATCH 0/1] " Junio C Hamano
2022-05-06 20:00 ` oss dev
2022-05-10 17:15 ` [PATCH v2 0/2] " Goss Geppert
2022-05-10 17:15 ` [PATCH v2 1/2] " Goss Geppert
2022-05-11 16:37 ` Junio C Hamano
2022-05-20 19:45 ` oss dev
2022-05-24 14:29 ` Elijah Newren [this message]
2022-05-24 19:45 ` Junio C Hamano
2022-05-25 3:46 ` Elijah Newren
2022-05-11 23:07 ` Junio C Hamano
2022-05-20 20:01 ` oss dev
2022-05-23 19:23 ` Derrick Stolee
2022-05-30 18:48 ` oss dev
2022-05-10 17:15 ` [PATCH v2 2/2] dir: minor refactoring / clean-up Goss Geppert
2022-05-11 16:51 ` Junio C Hamano
2022-05-20 20:03 ` oss dev
2022-05-20 19:28 ` [PATCH v3 0/3] dir: traverse into repository Goss Geppert
2022-05-20 19:28 ` [PATCH v3 1/3] " Goss Geppert
2022-05-20 19:28 ` [PATCH v3 2/3] dir: cache git_dir's realpath Goss Geppert
2022-05-24 14:32 ` Elijah Newren
2022-05-20 19:28 ` [PATCH v3 3/3] dir: minor refactoring / clean-up Goss Geppert
2022-06-16 23:19 ` [PATCH v4 0/2] dir: traverse into repository Goss Geppert
2022-06-22 4:57 ` Elijah Newren
[not found] ` <20220616231956.154-1-gg.oss@outlook.com>
2022-06-16 23:19 ` [PATCH v4 1/2] " Goss Geppert
2022-06-16 23:44 ` [PATCH v4 0/2] dir: traverse into repository (resending) Goss Geppert
[not found] ` <20220616234433.225-1-gg.oss@outlook.com>
2022-06-16 23:44 ` [PATCH v4 1/2] dir: traverse into repository Goss Geppert
2022-06-16 23:44 ` [PATCH v4 2/2] dir: minor refactoring / clean-up Goss Geppert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CABPp-BGXRzYCvyM38dEUvQ125+VtRu++7L9UiRz98u+1=Lov7A@mail.gmail.com' \
--to=newren@gmail.com \
--cc=derrickstolee@github.com \
--cc=gg.oss.dev@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=usebees@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).