# Long Blocking Work

> Performing lengthy synchronous work on a request path, blocking it and inflating latency.

Record: `lexicon:long-blocking-work`
Kind: anti-pattern
Layer: [Performance Core](https://banes-lab.com/records/layer/performance-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-long-blocking-work

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Local Micro-Optimization](https://banes-lab.com/records/lexicon/local-micro-optimization.md) and before [Origin-Only Serving](https://banes-lab.com/records/lexicon/origin-only-serving.md).

## Category

- [Scalability / Performance / Optimization](https://banes-lab.com/records/lexicon-category/scalability-performance-optimization.md)

## Negated by

- [Latency](https://banes-lab.com/records/architecture/latency.md)

## Linked from

- [Scalability / Performance / Optimization](https://banes-lab.com/ontology/principles/architecture-category-scalability-performance-optimization.md)