Improving the Linux kernel with upstream contributions
10/5/2015 · Blake Matheny, Chris Mason
What this post added
This post details Meta's "upstream-first" philosophy for contributing to the Linux kernel, focusing on improving storage and networking stacks. Key contributions include enhancements to blk-mq for block storage performance, stabilization of Btrfs for production data protection, implementation of the New Vegas congestion control algorithm, writeback support for cgroups for fine-grained IO limiting, advancements in network virtualization (GUE, IPv6 flow label, ILA), IPv6 performance improvements by scaling the routing tree, and a caching layer for RAID 5/6 to address the write hole and improve performance. The post also highlights progress in release engineering for faster kernel deployments.