How Atlassian made Git push over HTTPS faster for Bitbucket Cloud

This post details the investigation and fix for slow HTTPS Git push speeds in Bitbucket Cloud. The issue was traced to unoptimized default HTTP/2 connection buffer and frame size settings on the edge load balancers. The fix involved updating these settings to increase the max frame size, preferred frame size, and stream buffer size, which improved flow control and the receive window size. This resulted in significant speed increases for large repository pushes, particularly for users with higher latency.