Since the beginning of the project, the core value which drove its progress was "To enhance the user experience for running Jenkins jobs by reducing the overall execution time". To achieve this goal, we laid out a path: Compare the two existing git implementations i.e CliGitAPIImpl and JGitAPIImpl using performance benchmarking Use the results to create a feature which would improve the overall performance of git plugin Also,...

The second phase of the Git Plugin Performance Improvement project has been great in terms of the progress we have achieved in implementing performance improvement insights derived from the phase one JMH micro-benchmark experiments. What we’ve learned so far in this project is that a git fetch is highly correlated to the size of the remote repository. In order to make fetch improvements in this plugin,...

Git Plugin Performance Improvement is a Google Summer of Code 2020 project. It aims to improve the performance of the git plugin, which provides fundamental git functionalities. Internally, the plugin provides these functionalities using two implementations: command line git and JGit (pure java implementation). CLI git is the default implementation for the plugin, a user can switch to JGit if needed The project is divided into two parallel...

This is a speaker blogpost for a DevOps World | Jenkins World 2019 talk in Lisbon, Portugal With Halloween upon us, there’s no better time to discuss Jenkinstein! Are you suffering from Jenkins performance issues? Are users complaining about a slow UI or even scarier, is Jenkins going down frequently? Come join me at DevOps World | Jenkins World 2019 for "Jenkins Performance: Avoiding Pitfalls, Diagnosing Issues, and...

The task for my Google Summer of Code program was to improve the performance of the Role Strategy Plugin. The performance issues for Role Strategy Plugin had been reported multiple times on Jenkins JIRA. With a large number of roles and with complex regular expressions, a large slow-down was visible on the Web UI. Even before GSoC started, there were a number of patches which tried to improve performance...

During my Google Summer of Code Project, I have created the brand new Folder Auth Plugin for easily managing permissions to projects organized in folders from the Folders plugin. This new plugin is designed for fast permission checks with easy-to-manage roles. The 1.0 version of the plugin has just been released and can be downloaded from your Jenkins' Update center. This plugin was inspired by the Role Strategy Plugin and brings...

I have been working on improving the performance of the Role Strategy Plugin as a part of my Google Summer of Code project. Since there was no existing way to measure performance and do benchmarks on Jenkins Plugins, my work for the first phase of the project was to create a framework for running benchmarks in Jenkins plugins with a Jenkins instance available. To make our job...

Oleg Nenashev and I will be speaking at DevOps World | Jenkins World in San Francisco this year about Scaling Network Connections from the Jenkins Controller. Over the years there have been many efforts to analyze, optimize, and fortify the “Remoting channel” that allows a controller to orchestrate agent activity and receive build results. Techniques such as tuning the agent launcher can improve service, but qualitative change can only...

Table of Contents Introducing "Project Cheetah" Yes, but what does it DO? How Do I Set Speed/Durability Settings? 1. Globally, you can choose a global default durability setting: 2. Each Pipeline can get a custom Durability Setting: 3. Multibranch Projects can use a new BranchProperty to customize the Durability Setting. Will Performance-Optimized Mode Help Me? Other Goodies How Did You Do It? What Next? Since it launched, Pipeline has had a bit of a Dr....

This is a guest post by Sam Van Oort, Software Engineer at CloudBees and contributor to the Jenkins project. Today I’m going to show you best practices to write scalable and robust Jenkins Pipelines. This is drawn from a combination of work with the internals of Pipeline and observations with large-scale users. Pipeline code works beautifully for its intended role of automating build/test/deploy/administer tasks. As it is pressed into...