Google Chrome reduced cookie requests to improve performance
05-June-24
Google has enhanced Chrome’s cookie handling with a feature called Shared Memory Versioning to tackle performance slowdowns caused by repetitive cookie requests. In multi-process browsers like Chrome, each window and feature runs in its own process, leading to numerous cookie queries that previously resulted in inefficiencies and delays. Field traces revealed that 87% of cookie accesses were redundant, sometimes occurring hundreds of times per second. The new system, enabled by default since March, pairs each document.cookie value with a version number and stores it locally, allowing Chrome to verify cookie data without repeatedly querying the network service. This update has decreased cookie-related messages by 80% and improved access speeds by 60%, significantly boosting performance.
