| commit | 13cb7f799dc61093ed69726093a5af8bf48c65d1 | [log] [tgz] |
|---|---|---|
| author | Mike Frysinger <vapier@google.com> | Mon Mar 01 02:06:10 2021 -0500 |
| committer | Mike Frysinger <vapier@google.com> | Mon Mar 01 15:58:06 2021 +0000 |
| tree | 8b20fcf594b0e07676dea41792d58d81d16efdd4 | |
| parent | 819c73954f0f0d80afda86e871000e7521bfd982 [diff] |
forall: greatly speed up processing overhead
With the recent commit 0501b29e7ae072e0b10ea9ddd913ec6d5975f690
("status: Use multiprocessing for `repo status -j<num>` instead of
threading"), the limitation with project serialization no longer
applies. It turns out that ad-hoc logic is expensive. In the CrOS
checkout (~1000 projects w/8 jobs by default), it adds about ~7sec
overhead to all invocations. With a fast nop run:
time repo forall -j8 -c true
This goes from ~11sec to ~4sec -- more than 50% speedup.
Change-Id: Ie6bcccd21eef20440692751b7ebd36c890d5bbcc
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298724
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
Repo is a tool built on top of Git. Repo helps manage many Git repositories, does the uploads to revision control systems, and automates parts of the development workflow. Repo is not meant to replace Git, only to make it easier to work with Git. The repo command is an executable Python script that you can put anywhere in your path.
Please use the repo-discuss mailing list or issue tracker for questions.
You can file a new bug report under the "repo" component.
Please do not e-mail individual developers for support. They do not have the bandwidth for it, and often times questions have already been asked on repo-discuss or bugs posted to the issue tracker. So please search those sites first.
Many distros include repo, so you might be able to install from there.
# Debian/Ubuntu. $ sudo apt-get install repo # Gentoo. $ sudo emerge dev-vcs/repo
You can install it manually as well as it's a single script.
$ mkdir -p ~/.bin $ PATH="${HOME}/.bin:${PATH}" $ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/.bin/repo $ chmod a+rx ~/.bin/repo