INTRODUCING ON-DEMAND CPU AND MEMORY PROFILING WITH FLAMEGRAPHS FOR WORKERS AND DURABLE OBJECTS

Summary from the TLDR DevOps newsletter

Cloudflare added on-demand production CPU and memory profiling for Workers and Durable Objects, with interactive flamegraphs and downloadable profiles. Internal profiling uncovered redundant JSON processing and partially disabled metrics code that still consumed memory. Memory profiles capture allocations during the recording window rather than the entire existing heap.