benchmarking – Page 4 – Türker Yıldırım

A read replica, and the six queries that could not use it

Deep diveMarch 16, 202314 min read

A primary at 80% CPU and reports running during the working day. Setting up the replica takes an afternoon; the consistency model takes a month.

Distroless is not smaller once PHP extensions are involved

NoteFebruary 21, 20232 min read

A minimal base image sounded like an easy win and turned out to be a wash, because the extensions pull the libraries back in. The nine megabytes between…

PHPUnit 10, and the listeners that no longer exist

Deep diveFebruary 20, 202314 min read

10.0 in February, a configuration file that has accreted since 2014, and a custom TestListener that the new version has no place for.

Load testing one endpoint before a launch

NoteFebruary 2, 20232 min read

A full load test of a system is a project; a load test of the one endpoint a campaign will hit is an afternoon. The mismatch between the…

The Dockerfile that finally stopped installing the world

Deep diveJanuary 25, 20238 min read

A 1.4 GB image and a six-minute build, for an application that is 40 MB of PHP. Most of it is build tooling that shipped by accident.

The on-call rotation for a team of four

Deep diveDecember 3, 202010 min read

One person had the phone for two years. A rotation of four is a week in four, which is enough to be tiring and not enough to build…

Profiling before you optimise

Deep diveNovember 5, 202010 min read

Two days spent optimising a function that was 3% of the request. The profiler said so in ninety seconds, and nobody had run it.

Composer 2 is not a minor upgrade

Deep diveOctober 28, 202010 min read

A dependency resolver rewritten and parallel downloads, so install went from ninety seconds to eleven. And a plugin API that broke three packages.

webpack 5, and the polyfills that stopped being automatic

Deep diveOctober 21, 202010 min read

The build broke on a package importing crypto. webpack 4 quietly bundled a browser shim; 5 does not, and the error is the correct one.

Observability is three things, and logs are one

Deep diveOctober 7, 202010 min read

Forty gigabytes of logs a day and no answer to “is checkout slow”. Metrics, logs and traces answer different questions, and logs were doing all three badly.