---
description: Improvements to Vectorize WAL throughput reduce p99 end-to-end latency for vector changes to under 2 minutes.
title: Reduced end-to-end latency for vector changes
image: https://developers.cloudflare.com/changelog/post/2026-06-30-improved-wal-throughput/og.png?v=1fbd726a69e93265
---

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July 1, 2026

## Reduced end-to-end latency for vector changes

[Vectorize](https://developers.cloudflare.com/vectorize/)

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We have greatly improved the throughput of the Vectorize [write-ahead log (WAL) ↗︎](https://blog.cloudflare.com/building-vectorize-a-distributed-vector-database-on-cloudflare-developer-platform/#the-wal). As a result, we have significantly reduced the end-to-end latency for a vector change to become queryable: median latency has dropped from 2 minutes to under 30 seconds, and p99 latency from 5 minutes to under 2 minutes.

![Vectorize p99 WAL batch end-to-end latency improved](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=2542,height=1184,format=webp/_astro/vectorize-p99-wal-batch-end-to-end-latency-improvement.k8gtzlG7.png)

This means inserts, upserts, and deletes are reflected in query results faster, improving the freshness of semantic search, recommendation, and retrieval-augmented generation (RAG) workloads. You do not need to change your code or configuration to benefit from this improvement.

For more information, refer to the [Vectorize documentation](https://developers.cloudflare.com/vectorize/).

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