At last year’s P99 CONF, Tanel introduced using eBPF Task State Arrays to track Linux apps’ thread states/activity without built-in instrumentation. This year, he demos “xcapture,” showing MySQL, Postgres, and DuckDB time spent on CPU and in sleep, all without altering source code.
Tanel Poder is a long-time computer performance geek, working on various complex systems like (Oracle) database clusters, modern Big Data & cloud technologies and anything running on Linux/Unix. He has built and fixed enterprise data systems all around the world, this has also resulted in building a few small-but-very-fun tech companies around better tools and methods. He has two patents in data virtualization space and has realized that this is enough. In addition to his R&D, he occasionally delivers consulting, advisory and training to companies and talks about performance & troubleshooting both at public conferences and his video channels available at his website.
