technology

This tag is associated with 3 posts

Graviton2 versus Graviton4

Posted by Jeremy ⋅ August 3, 2025 ⋅ 2 Comments

Just a short post, because I thought this was pretty remarkable. Below, I have screenshots showing the CPU utilization of two AWS instances in us-west-2 which are running an identical workload. They are running the CloudNativePG playground, which is a production-like learning and testing environment (all running virtually inside the single ec2 instance, which can … Continue reading →

Collation Torture Test versus Debian

Posted by Jeremy ⋅ May 22, 2025 ⋅ Leave a comment

Collation torture test results are finally finished and uploaded for Debian. https://github.com/ardentperf/glibc-unicode-sorting The test did not pick up any changes in en_US sort order for either Bullseye or Bookworm 🎉️ Buster has glibc 2.28 so it shows lots of changes – as expected. The postgres wiki had claimed that Jessie(8) to Stretch(9) upgrades were safe. … Continue reading →

Waiting for Postgres 18 – Docker Containers 34% Smaller

Posted by Jeremy ⋅ April 7, 2025 ⋅ Leave a comment

On February 25, 2025 Christoph Berg committed the patch: This closed Debian bug 927182 which had been opened in April 2019 by Laurence Parry. That bug had raised concerns over the significant size increase of adding LLVM as a requirement to support Postgres JIT functionality. Postgres supports packaging LLVM as a separate optional package without … Continue reading →