Saswata Mukherjee

Senior SWE @RedHat | GSoC'21 & Maintainer @ThanosMetrics | Observability & Distributed Systems | views = own() | he/him |

[Saswata Mukherjee @saswatamcode]

Today I join @redhatopen as an Associate Software Engineer! Super happy to be able to join the awesome RHOBS team, who've been amazing colleagues and mentors!
Thanks again @bwplotka & @assafmuller for introducing me to my favorite team ever, and letting me contribute with them!🤗

[Bartłomiej Płotka @bwplotka]

This is huge. Probably the biggest realization for open-source @CloudNativeFdn metrics this year.

🔥 Scraping 345,000 active @PrometheusIO series every 15s and sending via Remote Write 2 or @opentelemetry OTLP takes on modern @golang collectors:
• ~1 GiB of RAM (WSS) with ups & downs (WAL compaction, cardinality bumps)

🚀 With @rustlang and @ApacheArrow via @opentelemetry otel-arrow using our new Prometheus https://t.co/BRk0kLe9PX crates:
• ~30 MiB of RAM (WSS, 5 MiB live heap)
• 2.6x–7.3x less CPU, flat for 23 hours 😱

I couldn't believe it. How is this even physically possible?

We have an opportunity to save $2.5B–$4B/yr in collector compute globally, and easily $100M+/yr at single-hyperscaler scale. We can scale 30x per pod, get hardware back, and deprioritize complex scalability band-aids like DaemonSet VPA and sharding.

Yes, I wrote the @OReillyMedia "Efficient Go" book, but for the last 2 weeks I've been becoming a Rust and columnar developer. There is no other way. This is the way.

And yes, we are starting a https://t.co/JfJeRMftO0 (ecosystem-wide) SIG — see #prometheus-rs-sig on CNCF Slack!

Huge thanks to the OpenTelemetry otel-arrow community for doing most of the work, Laurent Quérel for consulting, and the @ThanosMetrics & @PrometheusIO communities for columnar inspirations 💪

(Disclaimer: early numbers without full parity yet—with staleness, relabeling, and K8s discovery, compute needs will grow. Still, starting at 30 MiB WSS gives us tons of room!)

[Saswata Mukherjee @saswatamcode]

@fatih Highly recommend it! There are plenty of functional SLRs around on eBay, with working light meters. That, and some rolls of kodak ultramax are enough to get into the hobby!

[Bartłomiej Płotka @bwplotka]

Spoiled by @golang benchstat tool, I built "https://t.co/qKLPA9xGap" for @rustlang and wrote a blog post about it!

https://t.co/WF2mYQNqtE

TL;DR: 0-dep benchmarking runner for Rust + Criterion converter adding B/op, allocs/op & pprof profiles.

It's good to get back to teaching LLMs for free again (aka blog posting). Although some humans too, so it's worth it 💪

[Saswata Mukherjee @saswatamcode]

@bwplotka Really glad people find this useful!

[Bartłomiej Płotka @bwplotka]

I love when #opensource investments pan out!

I’ve built many OSS projects over the years—only a few ever get real adoption.

Seeing "mdox" still useful and growing a community 5y after its last release is an amazing feeling!

Just cut v0.10.0! ❤️

https://t.co/qT9ToUsCNX

[Saswata Mukherjee @saswatamcode]

@whoiskatrin Mju-1/infinity stylus zooms are amazing as point-and-shoots!

[Saswata Mukherjee @saswatamcode]

Applications for @PrometheusIO LFX mentorships open today!
We have some highly impactful projects this time, around Prometheus OTel UX, Remote Write 2.0, and Native summaries.

Go apply to work with some really cool folks, and learn while you're at it! 🔥
https://t.co/Jgh20npYrK

[Saswata Mukherjee @saswatamcode]

@PersesDev just got easier to adopt! 🚀

We’ve launched a new repo featuring your favorite OSS project dashboards, built with the Perses Go SDK and packaged as reusable Go modules.

Learn more and start using them today:
https://t.co/9sbuH4eZse

[Saumya Shah @Saumya_Codes]

I had amazing time being LFX mentee at @ThanosMetrics (@CNCF) under @saswatamcode and @stag1e (Giedrius isn't on X now 😅) You can find/learn more about my experience and brief overview on Thanos and its promQL engine in this blog post: https://t.co/OKSNnE1zFs

[Saswata Mukherjee @saswatamcode]

@Saumya_Codes @ThanosMetrics @cncf Thanks for being such an amazing mentee and for writing the blog post! We really enjoyed working with you too 🤗

Let's continue working together in OSS! 💪

[Cloudflare @Cloudflare]

Learn how Cloudflare tackles the challenge of scaling global service health metrics to safely release new software across our global network: https://t.co/mkSUHoPn4e

[Saswata Mukherjee @saswatamcode]

It was super nice getting to meet and chat with everyone at #KubeCon!

Safe travels back home!

[Saswata Mukherjee @saswatamcode]

Ready for your Thanos questions! 🙂

[Thanos Monitoring @ThanosMetrics]

We are ready for Day 2 at #KubeCon!

We were excited to talk to so many nice Thanos users yesterday! Let's continue that energy! 💜

Also, catch some lovely guest appearances at the booth from beloved community members like @Emmmmmmmmm and @ntakashics!

[Thanos Monitoring @ThanosMetrics]

We are ready for Day 2 at #KubeCon!

We were excited to talk to so many nice Thanos users yesterday! Let's continue that energy! 💜

Also, catch some lovely guest appearances at the booth from beloved community members like @Emmmmmmmmm and @ntakashics!

[Saswata Mukherjee @saswatamcode]

Thanks a lot for attending everyone!

[Saswata Mukherjee @saswatamcode]

Starting in 10 mins!

[Saswata Mukherjee @saswatamcode]

Starting in 10 mins!

[Saswata Mukherjee @saswatamcode]

Hi from #KubeCon_ London! 🇬🇧

Tomorrow, @fliao1 and I will talk about @PrometheusIO v3, and all the exciting updates it brings (we'll also mention the amazing future work that you can be involved in)!

Join us https://t.co/JNVSoWRq7V

[Saswata Mukherjee @saswatamcode]

@yashsharma_f @fliao1 @PrometheusIO Sure, feel free to come by Prometheus/Thanos booths in the project pavilion!

[Saswata Mukherjee @saswatamcode]

Hi from #KubeCon_ London! 🇬🇧

Tomorrow, @fliao1 and I will talk about @PrometheusIO v3, and all the exciting updates it brings (we'll also mention the amazing future work that you can be involved in)!

Join us https://t.co/JNVSoWRq7V

[Saswata Mukherjee @saswatamcode]

Come and say hi! 🙂

[Thanos Monitoring @ThanosMetrics]

Good morning from #KubeCon London! 🇬🇧

We are at kiosk 10A in the Project Pavilion until 3 pm!
Come chat about scalable metrics and get your questions answered! 💜

[CNCF @CloudNativeFdn]

🚀 Just launched! Mentee applications are now open for the next #LFX Mentorship term. Applications are open until Tuesday Feb 18! You won't want to miss this.
https://t.co/85o8QUuUef