Four million TPS

Nikolay talks Michael through a recent experiment to find the current maximum transactions per second single-node Postgres can achieve — why he was looking into it, what bottlenecks occurred along the way, and ideas for follow up experiments.
 
Here are some links to things they mentioned:

• How many TPS can we get from a single Postgres node? (Article by Nikolay) https://www.linkedin.com/pulse/how-many-tps-can-we-get-from-single-postgres-node-nikolay-samokhvalov-yu0rc
• Chat history with Postgres AI bot https://postgres.ai/chats/01905a83-4573-7dca-b47a-bb60ce30fe6c
• Our episode on the overhead of pg_stat_statements and pg_stat_kcache https://postgres.fm/episodes/overhead-of-pg_stat_statements-and-pg_stat_kcache
• PostgreSQL 17 beta 2 is out https://www.postgresql.org/about/news/postgresql-17-beta-2-released-2885/ 
• PostgreSQL and MySQL: Millions of Queries per Second (about the work by Sveta and Alexander) https://www.percona.com/blog/millions-queries-per-second-postgresql-and-mysql-peaceful-battle-at-modern-demanding-workloads
• postgresql_cluster https://github.com/vitabaks/postgresql_cluster
• Track on CPU events for pg_wait_sampling https://github.com/postgrespro/pg_wait_sampling/pull/74
• The year of the Lock Manager’s Revenge (post by Jeremy Schneider) https://ardentperf.com/2024/03/03/postgres-indexes-partitioning-and-lwlocklockmanager-scalability 
• Pluggable cumulative statistics (Postgres hackers thread started by Michael Paquier) https://www.postgresql.org/message-id/flat/Zmqm9j5EO0I4W8dx%40paquier.xyz 

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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, or by commenting on our Google doc!

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Postgres FM is produced by:

• Michael Christofides, founder of pgMustard
• Nikolay Samokhvalov, founder of Postgres.ai

With special thanks to:

• Jessie Draws for the elephant artwork