How we found a bug in Go's arm64 compiler
2025-10-08
84 million requests a second means even rare bugs appear often. We'll reveal how we discovered a race condition in the Go arm64 compiler and got it fixed....
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Building Jetflow: a framework for flexible, performant data pipelines at Cloudflare
2025-07-23
Faced with a data-ingestion challenge at a massive scale, Cloudflare's Business Intelligence team built a new framework called Jetflow....
Over 700 million events/second: How we make sense of too much data
2025-01-27
Here we explain how we made our data pipeline scale to 700 million events per second while becoming more resilient than ever before. We share some math behind our approach and some of the designs of ...
Improving platform resilience at Cloudflare through automation
2024-10-09
We realized that we need a way to automatically heal our platform from an operations perspective, and designed and built a workflow orchestration platform to provide these self-healing capabilities ...
Intelligent, automatic restarts for unhealthy Kafka consumers
2023-01-24
At Cloudflare, we take steps to ensure we are resilient against failure at all levels of our infrastructure. This includes Kafka, which we use for critical workflows such as sending time-sensitive emails and alerts....
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February 17, 2022 5:02 PM
Production ready eBPF, or how we fixed the BSD socket API
We are open sourcing the production tooling we’ve built for the sk_lookup hook we contributed to the Linux kernel, called tubular...
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October 13, 2021 12:59 PM
Pairings in CIRCL
Our Go cryptographic library CIRCL announces support for pairing-based cryptography....
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November 29, 2018 9:54 AM
Know your SCM_RIGHTS
As TLS 1.3 was ratified earlier this year, I was recollecting how we got started with it here at Cloudflare. We made the decision to be early adopters of TLS 1.3 a little over two years ago. It was a very important decision, and we took it very seriously....
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October 11, 2018 2:30 PM
Graceful upgrades in Go
The idea behind graceful upgrades is to swap out the configuration and code of a process while it is running, without anyone noticing it. If this sounds error-prone, dangerous, undesirable and in general a bad idea – I’m with you....
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September 02, 2018 7:35 AM
Porting Our Software to ARM64
As we enable more ARM64[1] machines in our network, I want to give some technical insight into the process we went through to reach software parity in our multi-architecture environment....
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April 26, 2018 5:32 AM
Copenhagen & London developers, join us for five events this May
Are you based in Copenhagen or London? Drop by some talks we're hosting about the use of Go, Kubernetes, and Cloudflare’s Mobile SDK....
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