From: Christian Couder <christian.couder@gmail.com>
To: git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>
Cc: "Nguyen Thai Ngoc Duy" <pclouds@gmail.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Ramsay Jones" <ramsay@ramsayjones.plus.com>,
"Jeff King" <peff@peff.net>,
"Christian Couder" <chriscool@tuxfamily.org>
Subject: [PATCH 0/2] split index extra bits
Date: Fri, 5 May 2017 16:57:11 +0200 [thread overview]
Message-ID: <20170505145713.8837-1-chriscool@tuxfamily.org> (raw)
This patch series contains 2 patches that have already been sent to
the list but have felt through the cracks. It would be nice if they
could be considered for v2.13.0.
Patch 1/2 (split-index: add and use unshare_split_index()) by Duy
fixes a memory leak when a new shared index file is created and memory
used by the old one should be freed.
Patch 2/2 (p3400: add perf tests for rebasing many changes) adds a
test in t/perf that can help see what performance improvements can be
gained by using the split index feature. For example using this patch
at one point I got the following results on a Linux machine on the Git
repository:
Test v2.10.0 v2.11.0 v2.12.0 origin/master
------------------------------------------------------------------------------------------------------------------------------------------------------------
3400.2: rebase on top of a lot of unrelated changes 2.62(2.19+0.55) 2.54(2.15+0.49) -3.1% 2.59(2.19+0.49) -1.1% 2.66(2.27+0.52) +1.5%
3400.4: rebase a lot of unrelated changes without split-index 14.08(10.12+3.92) 7.20(5.85+1.36) -48.9% 8.06(6.54+1.60) -42.8% 7.53(6.40+1.12) -46.5%
3400.6: rebase a lot of unrelated changes with split-index 14.10(10.11+3.94) 6.94(5.71+1.27) -50.8% 7.99(6.49+1.57) -43.3% 6.10(5.12+1.07) -56.7%
On bigger repositories results are likely to be better.
Christian Couder (1):
p3400: add perf tests for rebasing many changes
Nguyễn Thái Ngọc Duy (1):
split-index: add and use unshare_split_index()
read-cache.c | 10 ++-------
split-index.c | 57 ++++++++++++++++++++++++++++++++++++++------------
split-index.h | 1 +
t/perf/p3400-rebase.sh | 22 ++++++++++++++++++-
4 files changed, 68 insertions(+), 22 deletions(-)
--
2.13.0.rc1.83.g83955d3ecd.dirty
next reply other threads:[~2017-05-05 14:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-05 14:57 Christian Couder [this message]
2017-05-05 14:57 ` [PATCH 1/2] split-index: add and use unshare_split_index() Christian Couder
2017-05-05 14:57 ` [PATCH 2/2] p3400: add perf tests for rebasing many changes Christian Couder
2017-05-08 1:42 ` [PATCH 0/2] split index extra bits Junio C Hamano
2017-05-08 1:49 ` Junio C Hamano
2017-05-08 6:40 ` Christian Couder
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=20170505145713.8837-1-chriscool@tuxfamily.org \
--to=christian.couder@gmail.com \
--cc=avarab@gmail.com \
--cc=chriscool@tuxfamily.org \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=pclouds@gmail.com \
--cc=peff@peff.net \
--cc=ramsay@ramsayjones.plus.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).