pg_wait_tracer

Nik and Michael are joined by Dmitry Fomin to discuss his new tool pg_wait_tracer, as well as changes that could be made to core to allow wait event tracing with lower overhead, and on managed services.

Here are some links to things they mentioned:
• Dmitry Fomin postgres.fm/people/dmitry-fomin
• pg_wait_tracer github.com/DmitryNFomin/pg_wait_tracer
• pg_wait_sampling github.com/postgrespro/pg_wait_sampling
• pg_10046 github.com/DmitryNFomin/pg_10046
• Jeremy Schneider reply on LinkedIn linkedin.com/feed/update/urn:li:activity:74149…
• RDS for PostgreSQL wait event docs docs.aws.amazon.com/AmazonRDS/latest/UserGuide…
• Custom wait events for extensions (added in PostgreSQL 17) postgresql.org/docs/current/xfunc-c.html#XFUNC…
• Hacking Postgres with Dmitry, Kirk, and Nik (Part 1) youtube.com/watch?v=3Gtuc2lnnsE
• Hacking Postgres with Dmitry, Kirk, and Nik (Part 2) youtube.com/watch?v=6kqpjnpl5Gc
• Tanel Poder tanelpoder.com/about
• USDT static tracepoints for wait event tracing (proof of concept by Nik) github.com/NikolayS/postgres/pull/18
• Add wait_event_timing: Oracle-style wait event instrumentation (patch by Dmitry) github.com/DmitryNFomin/postgres/pull/1
• PgQue benchmarks github.com/NikolayS/pgque/blob/main/docs/bench…
• The Art of Computer Systems Performance Analysis Techniques for Experimental Design, Measurement, Simulation and Modeling (by Raj K. Jain) researchgate.net/publication/259310412_The_Art…
• Performance modeling and design of computer systems queueing theory in action (by Prof. Mor Harchol-Balter) cs.cmu.edu/~harchol/PerformanceModeling/book.h…
• Oracle Performance Firefighting (by Craig_Shallahamer) abebooks.co.uk/9780984102303/Oracle-Performanc…
• Process Mining: Data Science in Action (by Wil van der Aalst) link.springer.com/book/10.1007/978-3-662-49851-4

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What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, (postgres.fm/people) or by commenting on our Google doc (docs.google.com/document/d/1PNGSn_d0A7gTR4C0p6…)!

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Postgres FM is produced by:
• Michael Christofides, founder of pgMustard (pgmustard.com)
• Nikolay Samokhvalov, founder of Postgres.ai (postgres.ai)

With credit to:
• Jessie Draws for the elephant artwork