77 lines
3.2 KiB
Markdown
77 lines
3.2 KiB
Markdown
---
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title: "Talks"
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description: "Motiejus Jakštys on stage"
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---
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2025-09-11 DevOpsDays Vilnius
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**The Filesystem Diaries: Scaling Btrfs in an Enterprise**
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Btrfs was merged into the Linux kernel in 2009, arriving with bold
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promises—and, let's be honest, a reputation for instability. I first tried it
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on my laptop in 2011. It wiped my data. Twice. On the bright side, it taught me
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the value of backups.
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Fast forward to 2025: btrfs is no longer the experimental filesystem of the
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past. It's stable, mature, feature-rich, and fully part of the Linux kernel.
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But old reputations die hard. Even today, Google Cloud Platform doesn’t
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officially support it—not because of technical shortcomings, but because
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customer demand hasn’t pushed the issue.
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At Chronosphere, we decided to take a fresh look. After months of evaluation
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and testing, we migrated petabytes of customer data across thousands of disks
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to btrfs. This talk is our story: why we made the leap, what we learned along
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the way, and how we’re helping bring btrfs into wider enterprise
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adoption—including working with Google to support it natively.
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I'll share the decision-making process, key performance and reliability
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insights, and the quirks you only discover when running btrfs at scale. Whether
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you're btrfs-curious or just love a good ops tale, you'll walk away with
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real-world takeaways—and maybe a newfound respect for this once-maligned
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filesystem.
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If you know what NTFS, ext4, or ZFS are, you’re ready for this journey.
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No video, no slides.
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<hr/>
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2022-04-10 Zig Milan Party
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--------------------------
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**Maps and Yellow Pages**
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If you look back 10-15 years, we used “free maps” only as a last-resort way to
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find a tourism information office or shop that sells real maps. It also used to
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be funny and, in a way, interesting, to navigate “map-flavored yellow pages”.
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We knew we are looking at an ad brochure and acted accordingly.
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These days map-flavored Yellow Pages are embedded into every smartphone, which
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we use daily to navigate. I find it quite sad, because constantly projecting
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the world through such “maps” results in a very peculiar world understanding.
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For those who haven’t tried, it is an interesting exercise to use Yellow Pages
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to find playgrounds (when traveling with kids) or water fountains during hot
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days.
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Even in this era, not all is lost! Technology of real maps is moving and
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improving. I will remind you what a real map looks like and show how usable it
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is today. During the talk a licensed cartographer will give practical
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day-to-day tips for navigation and exploration. In the second half of the talk
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we will switch out our consumer hat to a creator hat and behold, create! No
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background in cartography required, only a smartphone.
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* [Slides](/talks/2024-sycl-maps-and-yellow-pages.pdf).
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* Video: [mkv](/talks/2024-sycl-maps-and-yellow-pages.mkv), [youtube](https://www.youtube.com/watch?v=I7fFBJHmCT0)
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<hr/>
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2022-04-10 Zig Milan Party
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--------------------------
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**How Zig is Used at Uber**
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* [Written form]({{<ref "log/2022/how-uber-uses-zig" >}}).
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* [Slides](/talks/2022-zig-milan-party_How-zig-is-used-at-Uber.pdf).
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* Video: [webm](/talks/2022-zig-milan-party_How-zig-is-used-at-Uber.webm), [youtube](https://www.youtube.com/watch?v=SCj2J3HcEfc).
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