Matt Fleming
@mfleming.bsky.social
Nyrkiö co-founder. Systems engineer at Cloudflare. Former Linux kernel maintainer. Performance nerd.
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-...
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...
blog.cloudflare.com
October 22, 2025 at 12:33 PM
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-...
Reposted by Matt Fleming
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
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
Kernel Recipe Archives |
archives.kernel-recipes.org
January 29, 2025 at 10:26 PM
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
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
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 🙃
January 21, 2025 at 4:26 PM
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 🙃
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!
November 29, 2024 at 9:54 AM
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!
Reposted by Matt Fleming
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
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
November 26, 2024 at 11:02 AM
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
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
Reposted by Matt Fleming
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...
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...
Testing Distributed Systems
Curated list of resources on testing distributed systems
asatarin.github.io
November 19, 2024 at 5:26 AM
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...
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...
Reposted by Matt Fleming
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.
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...
arxiv.org
November 16, 2024 at 7:11 AM
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.
Bluesky is really heating up! Lots of amazing folks are coming over here
November 15, 2024 at 2:20 PM
Bluesky is really heating up! Lots of amazing folks are coming over here
Reposted by Matt Fleming
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...
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
aws.amazon.com
November 13, 2024 at 6:14 PM
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...
Reposted by Matt Fleming
[arXiv highlights] xNVMe: Unleashing Storage Hardware-Software Co-design
An https://xnvme.io/ paper!
arxiv.org/abs/2411.0...
An https://xnvme.io/ paper!
arxiv.org/abs/2411.0...
November 13, 2024 at 4:51 AM
[arXiv highlights] xNVMe: Unleashing Storage Hardware-Software Co-design
An https://xnvme.io/ paper!
arxiv.org/abs/2411.0...
An https://xnvme.io/ paper!
arxiv.org/abs/2411.0...
ICPE paper bidding has started. Time to get to work. 👓
November 3, 2024 at 9:22 AM
ICPE paper bidding has started. Time to get to work. 👓
I’m speaking on Wednesday at #srecon in Dublin. If you’re attending please come say hi!
www.usenix.org/conference/s...
www.usenix.org/conference/s...
Taming Noisy Benchmark Results Using Change Point Detection | USENIXusenix_logo_notag_white
www.usenix.org
October 28, 2024 at 1:43 PM
I’m speaking on Wednesday at #srecon in Dublin. If you’re attending please come say hi!
www.usenix.org/conference/s...
www.usenix.org/conference/s...