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Matt Fleming

@mfleming.bsky.social
1K followers 70 following 10 posts

Nyrkiö co-founder. Systems engineer at Cloudflare. Former Linux kernel maintainer. Performance nerd.

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Reposted by Matt Fleming
Marc Brooker @marcbrooker.bsky.social · 24/03/2026
New blog post, on the changing role of principal/staff+ IC leaders: brooker.co.za/blog/2026/03... Core message: get building, get learning.
brooker.co.za
My heuristics are wrong. What now? - Marc's Blog
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Matt Fleming @mfleming.bsky.social · 22/10/2025
Me and Jesper Dangaard Brouer wrote a blog post on the kernel’s BPF LPM trie implementation and cover some of the performance gotchas with the current code. blog.cloudflare.com/a-deep-dive-...
blog.cloudflare.com
A deep dive into BPF LPM trie performance and optimization
This post explores the performance of BPF LPM tries, a critical data structure used for IP matching. It delves into the trie algorithm, presents benchmark data, and explains how the current kernel imp...
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Matt Fleming @mfleming.bsky.social · 07/08/2025
blog.cloudflare.com/reducing-dou...
blog.cloudflare.com
Reducing double spend latency from 40 ms to < 1 ms on privacy proxy
We significantly sped up our privacy proxy service by fixing a 40ms delay in
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Reposted by Matt Fleming
Kernel Recipes @kernelrecipes.bsky.social · 29/01/2025
It’s been a long time coming... and finally here! We’re making all the resources from Kernel Recipes available, from the very start. It’s still a little rough around the edges in terms of interface, but totally usable: slides, videos, photos, and drawings Enjoy! archives.kernel-recipes.org
archives.kernel-recipes.org
Kernel Recipe Archives |
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Matt Fleming @mfleming.bsky.social · 21/01/2025
If you want the JDK cgroup support detection to keep working in Linux 6.12, you’d better enable the new CONFIG_MEMCG_V1 kconfig option otherwise you’ll spend a couple of days debugging OOMs 🙃
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Matt Fleming @mfleming.bsky.social · 29/11/2024
Change Point Detection for performance testing just reached a whole new level. The project behind nyrkio.com and used in companies like Confluence and DataStax just got accepted into the ASF incubator project. Aww yeah!
nyrkio.com
Nyrkiö | For Faster Software
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Reposted by Matt Fleming
mck 🦎🐬 @mck.semb.wever.org · 26/11/2024
Starter pack for folk contributing and committing to Apache Cassandra. Let me know if you should be a part of it – ever contributed code or been active on any of our jira tickets. go.bsky.app/13X1Pa
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Reposted by Matt Fleming
Andrey Satarin @asatarin.bsky.social · 19/11/2024
Hello, Bluesky users! I curate and maintain list of resources on testing distributed systems. You might have seen it before. It's a good one, if I may say so myself. asatarin.github.io/testing-dist...
asatarin.github.io
Testing Distributed Systems
Curated list of resources on testing distributed systems
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Reposted by Matt Fleming
Martin Kleppmann @martin.kleppmann.com · 16/11/2024
Yes! I helped write a paper about the overall architecture arxiv.org/abs/2402.03239 but it doesn’t go into the systems/implementation/scalability aspects. I hope we can do a follow-up that covers that angle.
arxiv.org
Bluesky and the AT Protocol: Usable Decentralized Social Media
Bluesky is a new social network built upon the AT Protocol, a decentralized foundation for public social media. It was launched in private beta in February 2023, and has grown to over 10 million regis...
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Matt Fleming @mfleming.bsky.social · 15/11/2024
Bluesky is really heating up! Lots of amazing folks are coming over here
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Reposted by Matt Fleming
Marc Brooker @marcbrooker.bsky.social · 13/11/2024
Finer-grained performance metrics for EBS are here! The ones I'm most excited about are IO latency histograms, a real game changer for database performance monitoring and tuning: aws.amazon.com/about-aws/wh...
aws.amazon.com
Amazon EBS now supports detailed performance statistics on EBS volume health - AWS
Discover more about what's new at AWS with Amazon EBS now supports detailed performance statistics on EBS volume health
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Reposted by Matt Fleming
Alex Miller @alexmillerdb.bsky.social · 13/11/2024
[arXiv highlights] xNVMe: Unleashing Storage Hardware-Software Co-design An xnvme.io paper! arxiv.org/abs/2411.0...
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Matt Fleming @mfleming.bsky.social · 03/11/2024
ICPE paper bidding has started. Time to get to work. 👓
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Matt Fleming @mfleming.bsky.social · 28/10/2024
I’m speaking on Wednesday at #srecon in Dublin. If you’re attending please come say hi! www.usenix.org/conference/s...
usenix.org
Taming Noisy Benchmark Results Using Change Point Detection | USENIXusenix_logo_notag_white
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