Experiment: The hidden costs of waiting on slow build times
How much does it really cost to buy more powerful cloud compute resources for development work? A lot less than you think.
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Engineering
Over the course of a year, GitHub’s engineers make millions of commits across all of our internal repositories, process billions of API requests, and run tens of thousands of deployments across the internal apps that power GitHub’s services. We use many of GitHub’s products and plenty of other open source tools to operate at this scale. Here’s an inside look into how we do it.
How GitHub converts previously encrypted and unencrypted columns to ActiveRecord encrypted columns
This post is the second part in a series about ActiveRecord::Encryption that shows how GitHub upgrades previously encrypted and unencrypted columns to ActiveRecord::Encryption.
Why and how GitHub encrypts sensitive database columns using ActiveRecord::Encryption
You may know that GitHub encrypts your source code at rest, but you may not have known that we encrypt sensitive database columns as well. Read about our column encryption strategy and our decision to adopt the Rails column encryption standard.
How we tripled max concurrent jobs to boost performance of GitHub Actions
The GitHub Actions team has done lots of work to improve the performance and resource consumption of Actions on GHES in the past year.
Scaling Git’s garbage collection
A tour of recent work to re-engineer Git’s garbage collection process to scale to our largest and most active repositories.
How the GitHub Security Team uses projects and GitHub Actions for planning, tracking, and more
Can projects and GitHub Actions be used by your non-developer teams? They absolutely can. Check out how our Security Team uses GitHub to run the department effortlessly.
Improve Git monorepo performance with a file system monitor
Monorepo performance can suffer due to the sheer number of files in your working directory. Git’s new builtin file system monitor makes it easy to speed up monorepo performance.
How we think about browsers
Discover how GitHub thinks about browser support, look at usage patterns, and learn about the tools we use to make sure our customers are getting the best experience.
How we use Dependabot to secure GitHub
A two-part story about how GitHub’s Product Security Engineering team rolled out Dependabot internally to track vulnerable dependencies, and how GitHub tracks and prioritizes technical debt.
How we’re continuing to enable all developers to build
Learn about what GitHub is doing to make their products more inclusive, and what’s next.
How we’re using projects to build projects
At GitHub we use GitHub to build our own products, and the new projects experience is no different. Check out how our team uses projects to build powerful project planning for developers.
Improving Git push times through faster server side hooks
The history of pre-receive hooks, how we discovered that the performance was problematic, and how we went about safely replacing them.
Performance at GitHub: deferring stats with rack.after_reply
How we sped up GitHub.com by moving slow, non-critical code into rack.after_reply.
4 ways we use GitHub Actions to build GitHub
From automating builds and releases to taking care of large-scale regression testing, here are a few ways we use GitHub Actions to build GitHub.
How we ship GitHub Mobile every week
Learn how the GitHub Mobile Team automates their release process with GitHub Actions.
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