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Frederic Branczyk @brancz.com · 46m

Ok found there is this experimental feature: kubernetes.io/docs/concept...

And cilium implemented QoS last year: github.com/cilium/ciliu...

Network Plugins

Kubernetes (version 1.3 through to the latest 1.34, and likely onwards) lets you use Container Network Interface (CNI) plugins for cluster networking. You must use a CNI plugin that is compatible with...

kubernetes.io

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Frederic Branczyk @brancz.com · 2h

I have several services that use as much network bandwidth as is available to them on Kubernetes. But I need to prioritize or at least guarantee some amount of bandwidth to a certain component. What are my options other than separate node pools?

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Reposted by Frederic Branczyk

aksh1618 @aksh1618.aksh.dev · 1d

Took advantage of the lunch break to replay this great talk by Alfonso Subiotto (@asubiotto.com) making the case for a State Machines based approach to Deterministic Simulation Testing, being used at @polarsignals.com, very interesting!

Their inspiration for this: sled.rs/simulation

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Frederic Branczyk @brancz.com · 2d

Figure out when the deploy happened 👀

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Reposted by Frederic Branczyk

Matthias Loibl @metalmatze.de · 3d

So cool and parca.dev getting mentioned out of nowhere. Love to see it!

Swift Language @swift.org · 4d

New tooling for profiling performance-critical services with Swift -- introducing the Swift Profile Recorder. More here: www.swift.org/blog/swift-p...

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Frederic Branczyk @brancz.com · 4d

Google Mail moved the mark as unread button in the dropdown, and I hate it.

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Frederic Branczyk @brancz.com · 4d

It's awesome to see the arrow project get support like this! medium.com/@QuantStack/...

The Sovereign Tech Agency Invests in Apache Arrow’s Future with QuantStack

We are thrilled to announce that the Sovereign Tech Fund is providing critical funding to sustain and improve Apache Arrow, an essential…

medium.com

Frederic Branczyk @brancz.com · 9d

Despite the ecosystem fragmentation, I'm excited to see more innovation in this space. For now we've firmly settled on Vortex, but happy to see that there are ideas being exchanged!

Andy Pavlo @andypavlo.bsky.social · 10d

Our SIGMOD paper with our friends at Tsinghua + @wesmckinney.com + @pateljm.bsky.social on creating a next generation open-source data file format is out. F3 is a future-proof file format avoids the mistakes of Parquet.
📄 Paper: db.cs.cmu.edu/papers/2025/...
📁 Code: github.com/future-file-...

F3: The Open-Source Data File Format for the Future
SIGMOD 2025

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Frederic Branczyk @brancz.com · 21d

Fair enough! I might try this.

Frederic Branczyk @brancz.com · 21d

I think I’m gonna have to create a sched-ext project for this but I don’t want to 😭

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Frederic Branczyk @brancz.com · 21d

This was brought to you by me really not wanting to have to create an eBPF sched-ext project.

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Frederic Branczyk @brancz.com · 21d

I have two workloads on the same Kubernetes node, and they are using as much CPU as is available to them on the system, but one workload is a background/batch task whereas the other is serving traffic.

What’s the best way to strictly prioritize the serving process in Linux/Kubernetes?

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Frederic Branczyk @brancz.com · 24d

Sure, there can be leaps that I don't see coming, but at the moment we've thoroughly come to the point where claude code/cursor works really well when we understand and describe the problem well, but leaving the thinking to it, completely and utterly fails.

Does anyone else see it this way?

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Reposted by Frederic Branczyk

shikhar @schmizz.net · 26d

We open sourced a read-through cache for S3, called Cachey github.com/s2-streamsto...

GitHub - s2-streamstore/cachey: Read-through cache for object storage

Read-through cache for object storage. Contribute to s2-streamstore/cachey development by creating an account on GitHub.

github.com

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Frederic Branczyk @brancz.com · Sep 8

I was at a complete loss for words when the message reached me this morning. Cherish the time you have with your loved ones.

Han, my friend, you will be dearly missed. I will never forget the memories we’ve built together.

github.com/cncf/memoria...

In memory of Han by brancz · Pull Request #173 · cncf/memorials

github.com

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Reposted by Frederic Branczyk

Polar Signals @polarsignals.com · Sep 3

We're excited to be at @rustconf.com 2025!
Let's talk about profiling Rust with zero compromise!
#rustconf25

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Reposted by Frederic Branczyk

Polar Signals @polarsignals.com · Sep 3

We recently made some performance improvements to our Flame Graph by implementing backend pre-computation and viewport culling. Read more in our latest blog post: www.polarsignals.com/blog/posts/2...

Parallel Flame Graph Rendering

How we improved our flame graph rendering by moving computation to the backend.

www.polarsignals.com

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Frederic Branczyk @brancz.com · Aug 27

Another step closer to making our next-gen storage engine generally available to our customers. Today's milestone: It's now on par with our old storage, while we still have tons of low-hanging and well-understood fruit!

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Frederic Branczyk @brancz.com · Aug 26

Not how we've been seeing StringViews/German-style-strings being discussed in the community, so we wanted to put this piece out there.

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Frederic Branczyk @brancz.com · Aug 26

What do you think of our (possibly controversial) take?

Polar Signals @polarsignals.com · Aug 26

German strings 🇩🇪 have become very popular in the database world. However, they're not a silver bullet. Read more in our latest blog post:

Das Problem mit German Strings

And why I don't want my database to choose the best encoding for me (yet)

www.polarsignals.com

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Frederic Branczyk @brancz.com · Aug 21

It's obviously an unfair comparison, but we just had a team member upgrade to a desktop with a 9950X3D, and it 5x improved 😬

But I'd like to continue to stay with a power-efficient setup, so I'm potentially looking at the 9955HX in the minisforum A2.

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Frederic Branczyk @brancz.com · Aug 21

Do I know anyone who has an AMD 9955HX? I’d love to know how much faster it is at compiling rust than my M1 Max.

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Frederic Branczyk @brancz.com · Aug 21

When you think you're just gonna fix a small bug and it turns out to take a week to understand and fix, but then you can't even ship it right away because it requires a data migration, which takes <retention period> of time. 🫠

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Frederic Branczyk @brancz.com · Aug 16

I think this is the way.

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Frederic Branczyk @brancz.com · Aug 16

I also just want to say, this wasn’t about a specific change, and it does not mean don’t use AI tools at all, but please be considerate, and only open PRs with code that you yourself understand and would write yourself like that.

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