Frederic Branczyk
@brancz.com
Founder polarsignals.com 🧊 ❄️ Building parca.dev, Prometheus maintainer. Distributed systems, databases, and performance engineering. Actually born in Berlin. (he/him)
It's so awesome that we can use our own product every single day at Polar Signals to understand our own software. I want to get into the rhythm and do more of these.
What do you think? How would you have troubleshooted this, and could you have understood what's going on in less than 1min?
What do you think? How would you have troubleshooted this, and could you have understood what's going on in less than 1min?
November 19, 2025 at 2:04 PM
It's so awesome that we can use our own product every single day at Polar Signals to understand our own software. I want to get into the rhythm and do more of these.
What do you think? How would you have troubleshooted this, and could you have understood what's going on in less than 1min?
What do you think? How would you have troubleshooted this, and could you have understood what's going on in less than 1min?
You thought docker is causing a lot of wasted space on your disk? Try working on a moderately sized Rust codebase that produces 10 binaries 🫠
November 6, 2025 at 12:22 PM
You thought docker is causing a lot of wasted space on your disk? Try working on a moderately sized Rust codebase that produces 10 binaries 🫠
I had a great time talking about GPU profiling at Ubuntu Summit! Thanks everyone for joining!
October 24, 2025 at 10:58 AM
I had a great time talking about GPU profiling at Ubuntu Summit! Thanks everyone for joining!
Quick one-hour weekend experiment, and I'm already visualizing our CI infrastructure at Polar Signals as distributed traces in Jaeger! Already gave me insight that I didn't know before (our Rust tests are the critical path, not release binary build times)!
October 18, 2025 at 12:29 PM
Quick one-hour weekend experiment, and I'm already visualizing our CI infrastructure at Polar Signals as distributed traces in Jaeger! Already gave me insight that I didn't know before (our Rust tests are the critical path, not release binary build times)!
It's been that kind of a day ...
October 13, 2025 at 6:48 PM
It's been that kind of a day ...
Figure out when the deploy happened 👀
October 9, 2025 at 12:20 PM
Figure out when the deploy happened 👀
Yeah, trust me, you want #continuousprofiling. 50% CPU improvement with a ~5-line code change.
I often hear people say "we're not at that level of optimizing". I've not found one company this was true for, and you're missing out on opportunities like these.
I often hear people say "we're not at that level of optimizing". I've not found one company this was true for, and you're missing out on opportunities like these.
July 22, 2025 at 12:11 PM
Yeah, trust me, you want #continuousprofiling. 50% CPU improvement with a ~5-line code change.
I often hear people say "we're not at that level of optimizing". I've not found one company this was true for, and you're missing out on opportunities like these.
I often hear people say "we're not at that level of optimizing". I've not found one company this was true for, and you're missing out on opportunities like these.
Gonna try to make this the first week with my urchin keyboard as my daily driver!
July 21, 2025 at 8:00 AM
Gonna try to make this the first week with my urchin keyboard as my daily driver!
Didn’t actively do anything
June 24, 2025 at 4:09 PM
Didn’t actively do anything
Our very own @asubiotto.bsky.social for the first time publicly talking about the DST approach we’re taking in our new database.
(Blog post coming soon as well!)
(Blog post coming soon as well!)
June 20, 2025 at 11:31 AM
Our very own @asubiotto.bsky.social for the first time publicly talking about the DST approach we’re taking in our new database.
(Blog post coming soon as well!)
(Blog post coming soon as well!)
On my way with @metalmatze.de to Systems Distributed '25! Excited for all the talks and seeing old and new friends!
June 18, 2025 at 12:47 PM
On my way with @metalmatze.de to Systems Distributed '25! Excited for all the talks and seeing old and new friends!
New keyboard got an upgrade 😎
(Polar Signals key caps)
(Polar Signals key caps)
March 18, 2025 at 3:14 PM
New keyboard got an upgrade 😎
(Polar Signals key caps)
(Polar Signals key caps)
New keeb 🙌
(Wireless lily58 pro, kiiboom matcha latte v2 switches, and blank DSA keycaps)
(Wireless lily58 pro, kiiboom matcha latte v2 switches, and blank DSA keycaps)
March 16, 2025 at 7:19 PM
New keeb 🙌
(Wireless lily58 pro, kiiboom matcha latte v2 switches, and blank DSA keycaps)
(Wireless lily58 pro, kiiboom matcha latte v2 switches, and blank DSA keycaps)
End of an awesome week in the alps, we had pretty great weather (no new snow but can’t have everything)!
February 21, 2025 at 9:53 AM
End of an awesome week in the alps, we had pretty great weather (no new snow but can’t have everything)!
One of the best and simultaneously not very well known feature on GitHub!
February 4, 2025 at 12:38 PM
One of the best and simultaneously not very well known feature on GitHub!
> asubiotto closed this as completed 2 hours ago
👀
👀
January 16, 2025 at 12:28 PM
> asubiotto closed this as completed 2 hours ago
👀
👀
Prometheus 3.0 was released live on stage at KubeCon!
November 15, 2024 at 12:37 AM
Prometheus 3.0 was released live on stage at KubeCon!
Matthias and I are at SREcon in Dublin! Come say hi at our booth (number 29) and chat about continuous profiling, performance and observability!
October 29, 2024 at 9:48 AM
Matthias and I are at SREcon in Dublin! Come say hi at our booth (number 29) and chat about continuous profiling, performance and observability!