How would you measure P95 latency by geographic region?
Tests your ability to translate a business need into a concrete observability implementation. A good answer involves instrumenting the API with a histogram metric, adding a region label via GeoIP, and querying with `histogram_quantile`.
This tests your ability to translate a business requirement into a concrete observability implementation, considering metric types, data cardinality, and cost. A strong answer outlines instrumenting the API to record latency, adding a `region` dimension via GeoIP, using a histogram metric for efficient distribution capture, and then using a query like `histogram_quantile` to calculate the P95 grouped by region.
Read the original → sre.google
- #observability
- #metrics
- #prometheus
- #sre
- #latency
Get five bites like this every day.
Tezvyn delivers a daily feed of 60-second tech bites with quizzes to lock in what you learn.