🖼️00Read later0Read MoreWhen "idle" isn't idle: how a Linux kernel optimization became a QUIC bug The Cloudflare Blog ·Esteban Carisimo·5 months ago#5bVHRmUj#cubic#congestion#loss#cwnd#idle+3 more🧰Tag tools✨Add tagWe investigated a bug where CUBIC's congestion window became pinned at its minimum floor, causing a performance to plummet. The fix involved correctly measuring idle periods to distinguish RTT wait times from actual application idleness.15s
