DiscoverThe Backend Engineering Show with Hussein NasserGoogle Patches Linux kernel with 40% TCP performance
Google Patches Linux kernel with 40% TCP performance

Google Patches Linux kernel with 40% TCP performance

Update: 2024-03-05
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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/20231129072756.3684495-1-lixiaoyan@google.com/


Discovering Backend Bottlenecks: Unlocking Peak Performance
https://performance.husseinnasser.com

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Google Patches Linux kernel with 40% TCP performance

Google Patches Linux kernel with 40% TCP performance

Hussein Nasser