Finding performance issues in modern software is like finding a needle in a haystack and intuition on where to look first is often wrong. APerf is an open source tool we have used many times to help with performance debugging by looking “wide” before going “deep”. This session will present the tool along with an example of debugging a difficult P99 latency problem that was recently fixed in upstream Linux.
Geoff is a Principal Engineer at AWS (Annapurna Labs) based in Austin, Texas. He works on the AWS Graviton based EC2 instances making sure everyone can get the most performance out of them. This includes contributing optimizations to open-source projects, helping customers tune their service for Graviton, and exploring new ways to measure and optimize performance.
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