Re: What's cooking in git.git (Jan 2021, #04; Sat, 16)

From: Elijah Newren <newren@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Git Mailing List <git@vger.kernel.org>,
	Taylor Blau <me@ttaylorr.com>, Derrick Stolee <stolee@gmail.com>
Subject: Re: What's cooking in git.git (Jan 2021, #04; Sat, 16)
Date: Thu, 21 Jan 2021 08:25:33 -0800	[thread overview]
Message-ID: <CABPp-BGHpvmx-hdZ==MdODKEDVTr92m3rs4T2d_w9Aa0d0zanQ@mail.gmail.com> (raw)
In-Reply-To: <xmqq8s8so84r.fsf@gitster.c.googlers.com>

Hi Junio,

On Sat, Jan 16, 2021 at 2:02 PM Junio C Hamano <gitster@pobox.com> wrote:
> * en/merge-ort-perf (2021-01-15) 4 commits
>  - merge-ort: begin performance work; instrument with trace2_region_* calls
>  - Merge branch 'en/ort-directory-rename' into en/merge-ort-perf
>  - Merge branch 'en/ort-conflict-handling' into en/merge-ort-perf
>  - Merge branch 'en/diffcore-rename' into en/merge-ort-perf
>  (this branch uses en/diffcore-rename, en/merge-ort-3, en/ort-conflict-handling and en/ort-directory-rename.)

Any chance we could merge this down to next now?  In terms of pre-requisites:
  * you merged en/diffcore-rename and en/merge-ort-3 to next already
(and marked both as "Will merge to master")
  * you previously labelled en/ort-conflict-handling as "Will merge to
next" (and it was reviewed by Stolee[1])
  * en/ort-directory-rename has now been reviewed by Taylor[2]
Also, en/merge-ort-perf itself has also been reviewed by Taylor[3].

I have multiple series of patches for performance, starting with a
2-patch series, where for both commit messages and cover letters I
want to use paragraphs of the form:

"""
For the testcases mentioned in commit ??????????
("merge-ort: begin performance work; instrument with trace2_region_*
calls", 2020-10-28), the changes in just this series improves the
performance as follows:
                         Before Series           After Series
    no-renames:       12.975 s ±  0.037 s    12.878 s ±  0.050 s
    mega-renames:   5154.338 s ± 19.139 s  1673.551 s ±  4.586 s
    just-one-mega:   146.703 s ±  0.852 s    47.698 s ±  0.221 s
"""

But I'd like a stable commit identifier to place in the '??????????'
slot, and I think the current round of the series you pushed out last
night and using commit 36d1f87d05 seems like a good such label.
However, since I have so many paragraphs of this form and I don't want
the labels to go stale, it'd be nice if we could merge
en/merge-ort-perf down to at least next first.

[1] https://lore.kernel.org/git/5f6d5428-36ce-3e91-4916-8968ac1b8686@gmail.com/
[2] https://lore.kernel.org/git/YAdh1XTvDhRzGTiC@nand.local/
[3] https://lore.kernel.org/git/X%2FjHpZlSxwAxoUyq@nand.local/ (note
that the series only has one patch)