From: Junio C Hamano <gitster@pobox.com>
To: "René Scharfe" <l.s.r@web.de>
Cc: Git List <git@vger.kernel.org>
Subject: Re: [PATCH 00/10] typed sort of linked lists
Date: Sun, 17 Jul 2022 15:31:18 -0700 [thread overview]
Message-ID: <xmqqk08bv0ax.fsf@gitster.g> (raw)
In-Reply-To: <4d7cd286-398e-215c-f2bd-aa7e8207be4f@web.de> ("René Scharfe"'s message of "Sat, 16 Jul 2022 18:50:02 +0200")
René Scharfe <l.s.r@web.de> writes:
> It starts by making llist_mergesort() leaner without reducing its
> performance:
>
> mergesort: unify ranks loops
> mergesort: tighten merge loop
>
> This matters for the next step, which creates the macro version of
> that function:
>
> mergesort: add macros for typed sort of linked lists
>
> The next two patches show the impact of using the macro on performance
> and object text size of the test helper:
>
> test-mergesort: use DEFINE_LIST_SORT_DEBUG
> test-mergesort: use DEFINE_LIST_SORT
>
> Then all llist_mergesort() callers get converted:
>
> blame: use DEFINE_LIST_SORT
> commit: use DEFINE_LIST_SORT
> fetch-pack: use DEFINE_LIST_SORT
> packfile: use DEFINE_LIST_SORT
>
> ... and the final patch removes the function which has become unused:
>
> mergesort: remove llist_mergesort()
A nicely presented coherent story that results in an overall code
reduction. Thanks for a pleasant read.
Will queue.
> Makefile | 1 -
> blame.c | 30 ++++-------
> commit.c | 20 +++----
> fetch-pack.c | 8 +++
> mergesort.c | 84 -----------------------------
> mergesort.h | 108 ++++++++++++++++++++++++++++++++++----
> packfile.c | 18 ++-----
> remote.c | 22 --------
> remote.h | 2 -
> t/helper/test-mergesort.c | 34 +++---------
> t/perf/p0071-sort.sh | 4 +-
> t/t0071-sort.sh | 2 +-
> 12 files changed, 134 insertions(+), 199 deletions(-)
> delete mode 100644 mergesort.c
>
> --
> 2.37.1
next prev parent reply other threads:[~2022-07-17 22:31 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-16 16:50 [PATCH 00/10] typed sort of linked lists René Scharfe
2022-07-16 16:52 ` [PATCH 01/10] mergesort: unify ranks loops René Scharfe
2022-07-16 16:53 ` [PATCH 02/10] mergesort: tighten merge loop René Scharfe
2022-07-16 16:54 ` [PATCH 03/10] mergesort: add macros for typed sort of linked lists René Scharfe
2022-07-16 16:56 ` [PATCH 04/10] test-mergesort: use DEFINE_LIST_SORT_DEBUG René Scharfe
2022-07-16 16:57 ` [PATCH 05/10] test-mergesort: use DEFINE_LIST_SORT René Scharfe
2022-07-16 16:58 ` [PATCH 06/10] blame: " René Scharfe
2022-07-16 16:59 ` [PATCH 07/10] commit: " René Scharfe
2022-07-16 16:59 ` [PATCH 08/10] fetch-pack: " René Scharfe
2022-07-16 17:01 ` [PATCH 09/10] packfile: " René Scharfe
2022-07-16 17:02 ` [PATCH 10/10] mergesort: remove llist_mergesort() René Scharfe
2022-07-17 22:31 ` Junio C Hamano [this message]
2022-07-25 18:52 ` [PATCH 00/10] typed sort of linked lists Junio C Hamano
2022-07-25 20:35 ` Derrick Stolee
2022-07-25 20:49 ` Junio C Hamano
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