git@vger.kernel.org list mirror (unofficial, one of many)
 help / color / mirror / code / Atom feed
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 20:46:59 -0700	[thread overview]
Message-ID: <CABPp-BHHyouFfJ4OC=xShxFASTdBL=7qxnvwS7pDQ+xO6iTW2w@mail.gmail.com> (raw)
In-Reply-To: <xmqqilpuhfz2.fsf@gitster.g>

On Tue, May 24, 2022 at 12:45 PM Junio C Hamano <gitster@pobox.com> wrote:
>
> Elijah Newren <newren@gmail.com> writes:
>
> > 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?
>
> No.  I wasn't worried about anything in particular.  I just wanted
> to get the feel of how deep a thought the patch was backed by by
> spot checking what was and what was not taken into account when
> designing the change.
>
> I do not care too much when there are very large numbers of things
> that cause this codepath to be exercised.  Strange situations can be
> left for later optimization only when they turn up in the real world
> and prove to be a problem.

Ah, gotcha.

> By the way, where is a bare repository involved?  did you mean
> non-bare aka worktree-full repository?

Yes, sorry, I meant non-bare repository.

  reply	other threads:[~2022-05-25  3:47 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-05 20:32 [RFC PATCH 0/1] " 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
2022-05-24 19:45         ` Junio C Hamano
2022-05-25  3:46           ` Elijah Newren [this message]
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-BHHyouFfJ4OC=xShxFASTdBL=7qxnvwS7pDQ+xO6iTW2w@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 \
    --subject='Re: [PATCH v2 1/2] dir: consider worktree config in path recursion' \
    /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

Code repositories for project(s) associated with this 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).