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Cloudflare Workers adds on-demand CPU and memory flamegraphs

blog.cloudflare.com by Dominik Picheta 8 min read Editor score 7/10

Workers and Durable Objects can now be profiled on demand, with interactive flamegraphs in the dashboard and downloadable profiles. Production profiling can expose resource hot spots that aggregate metrics miss.

What
On-demand CPU and memory profiling is now available for Workers and Durable Objects through the dashboard or CLI.
How
The profiler captures an active Worker profile; flamegraph widths show CPU time or memory by function, and the profile file can be downloaded.
Why it matters
Production profiles can reveal resource hotspots, optimization opportunities, and causes of out-of-memory errors in deployed services.
profile renders outputs Worker profiler flamegraph profile file
A Worker profile is captured and presented as a flamegraph or downloadable file. Sketched from the article's own text.

Read on blog.cloudflare.com →

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