https://dfamonteiro.com/tags/observability/ Recent content in Observability on Daniel Monteiro's blog Hugo en Sun, 04 Oct 2026 19:36:49 +0100 https://dfamonteiro.com/posts/one-observability-metric/ Sun, 04 Oct 2026 19:36:49 +0100 https://dfamonteiro.com/posts/one-observability-metric/ <p>I was talking with some colleagues regarding their <a href="https://dfamonteiro.com/posts/production-load-generator/" >load-testing</a> efforts, when an interesting question came up during the conversation:</p> <blockquote> <p>How do we determine which services deserve the most optimization engineering effort?<sup id="fnref:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup></p></blockquote> <p>To solve this riddle, we need a source of performance data: server logs, traces, etc - thankfully, the product I work on has OpenTelemetry support and therefore we have reams of observability data stored in ClickHouse, so it&rsquo;s really a matter of crafting the right query. But which one?</p>