Google Patches Linux kernel with 40% TCP performance

The Backend Engineering Show with Hussein Nasser

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Google submitted a patch to Linux Kernel 6.8 to improve TCP performance by 40%, this is done via rearranging the tcp structures for better cpu cache lines, I explore this here. 0:00 Intro 0:30 Google improves Linux Kernel TCP by 40% 1:40 How CPU Cache Line Works 6:45 Reviewing the Google Patch https://www.phoronix.com/news/Linux-6.8-Networking https://lore.kernel.org/netdev/[email protected]/ Discovering Backend Bottlenecks: Unlocking Peak Performance https://performance.husseinnasser.com