Assorted links for Wednesday, January 15:
- Cloud PUE: Comparing AWS, Azure and GCP Global Regions
New data reveals how efficiently the major cloud providers run and cool their data centers – from AWS’s and Azure’s tropical struggles to Google’s industry-leading performance.
- The No-Order File System
In this paper, we introduce the No-Order File System (NoFS), a simple, lightweight file system that employs a novel technique called backpointer based consistency to provide crash consistency without ordering writes as they go to disk.
- Whose Code is it Anyway?
In order to measure the engineering effectiveness of Yelp, we need to measure the effectiveness of its organizations and the teams that make up those organizations. But how do we know what a team is responsible for? We needed a way to assign an owner to something (let’s call this an entity) that we want to measure. Once an entity has an owner, we can collect metrics on that entity and derive the health score (i.e., effectiveness) for that owner. These metrics can then be aggregated by team, organization, or even the entire Engineering division, so that we can identify areas that we can collectively improve. And this is how the Ownership microservice was born.
- How we ported Linux to the M1
- Nix + Bazel = fully reproducible, incremental builds