From: 程洋 <chengyang@xiaomi.com>
To: Jeff King <peff@peff.net>
Cc: "git@vger.kernel.org" <git@vger.kernel.org>
Subject: RE: [External Mail]Re: why git is so slow for a tiny git push?
Date: Wed, 27 Oct 2021 02:48:52 +0000 [thread overview]
Message-ID: <5c7ac5d1ee2442bdb268daa5708806d3@xiaomi.com> (raw)
In-Reply-To: <YXh5FoeyfePqr1k3@coredump.intra.peff.net>
That's cool. Thanks for you help. I will try to compile it myself
-----Original Message-----
From: Jeff King <peff@peff.net>
Sent: Wednesday, October 27, 2021 5:55 AM
To: 程洋 <chengyang@xiaomi.com>
Cc: git@vger.kernel.org
Subject: Re: [External Mail]Re: why git is so slow for a tiny git push?
*This message originated from outside of XIAOMI. Please treat this email with caution*
On Thu, Oct 14, 2021 at 06:47:31AM +0000, 程洋 wrote:
> Seems that git receive-pack only takes 1 seconds.
> After that, git rev-list takes the most time, I don't know what is it
> doing
It's checking connectivity of what was sent (i.e., that the other side sent us all the objects). If you have a ton of refs on the server side, there are some known issues here, as just loading the "we already have this" side of the traversal can be very expensive.
There's been some recent work to make this faster, like f559d6d45e
(revision: avoid hitting packfiles when commits are in commit-graph,
2021-08-09) and f45022dc2f (connected: do not sort input revisions, 2021-08-09), which will be in the upcoming release. I'm sure there are more improvements that could be made on top, but those show the general direction.
-Peff
#/******本邮件及其附件含有小米公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments contain confidential information from XIAOMI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!******/#
next prev parent reply other threads:[~2021-10-27 2:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <c5a8595658d6416684c2bbd317494c49@xiaomi.com>
[not found] ` <5a6f3e8f29f74c93bf3af5da636df973@xiaomi.com>
2021-10-09 18:05 ` why git is so slow for a tiny git push? 程洋
2021-10-11 16:53 ` Jeff King
2021-10-12 8:04 ` [External Mail]Re: " 程洋
2021-10-12 8:39 ` Jeff King
2021-10-12 9:08 ` 程洋
2021-10-12 21:39 ` Jeff King
2021-10-14 6:47 ` 程洋
2021-10-26 21:54 ` Jeff King
2021-10-27 2:48 ` 程洋 [this message]
2021-10-12 10:06 ` Ævar Arnfjörð Bjarmason
2021-10-12 21:46 ` Jeff King
2021-11-23 6:42 ` 程洋
2021-11-24 18:15 ` Jeff King
2021-11-25 2:53 ` 程洋
2021-11-24 8:07 ` 程洋
2021-10-28 13:17 ` Han-Wen Nienhuys
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=5c7ac5d1ee2442bdb268daa5708806d3@xiaomi.com \
--to=chengyang@xiaomi.com \
--cc=git@vger.kernel.org \
--cc=peff@peff.net \
/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).