Cloudflare K2 Builds Event Streams on R2 Object Storage, at a Second of Produce Latency
Cloudflare K2 serverless event streaming hits public beta with ~1s produce latency—but real-world end-to-end p99 hit 7.5s. Here's what that gap means for your pipeline.
Why it matters
Cloudflare has launched a durable-log event streaming service on its R2 object storage with disclosed produce latency of ~1s p99, but independent testing shows materially higher end-to-end latency. Practitioners building on Cloudflare's stack need to benchmark against their own workload profiles before committing.
The key facts
12 to knowCloudflare K2 in public beta—serverless event streaming on R2 object storage
Produce latency: ~1s p99 (vendor claim)
Independent tester reported end-to-end p99 of 7.5s; Cloudflare acknowledged as higher than expected
Pricing: consume and produce charges match per GB
No details disclosed on throughput limits, retention policies, or multi-region availability
K2 launched in public beta as serverless event streaming on R2 object storage
Cloudflare claims ~1 second p99 produce latency
Independent tester reported p99 end-to-end latency of 7.5 seconds
Cloudflare team acknowledged the 7.5s result was higher than expected
Produce and consume charges are per-GB parity
Service implements durable log on object storage
No regional availability, pricing tiers, or operational limits disclosed
Go to the source
InfoQ AI/MLinfoq.com
Publisher excerpt: Cloudflare has launched K2 in public beta, a serverless event streaming service implementing a durable log on R2 object storage. Cloudflare states produce latency of about one second at p99; a tester reported end-to-end p99 of 7.5 seconds, which a commenter answering for the team said was higher…