@lalithsuresh
CEO @ feldera.com, the incremental compute engine for AI, ML and data teams. Formerly a systems researcher in distributed systems, databases, cloud, OS, PL, and networking. Sci-fi and gaming nerd. lalith.in/research
Xooglerware: a genre of software built by former Googlers.
Key traits: Uses Bazel & protobuf (but strangely most protobuf v2), written in either Go or Java, uses 17TB of memory, burns three forests due to a clever algorithm, requires you to know the author as a friend to one-shot compilation
Making Copilot code review the PR replacing it with Claude Code review is kind of macabre.
github.com/feldera/feld...
Many of the #rust floating-point math functions have a note:
"The precision of this function is non-deterministic. This means it varies by platform, Rust version, and can even differ within the same execution from one invocation to the next."
When would results vary between invocations?
#rustlang
If you're a recent PhD graduate and have published in systems venues (SOSP, OSDI, NSDI, etc), let me know and I'll nominate you for PC invites when I get them.
I regret that I'm unable to carve out time to be on PCs these days. It was one of my favorite parts of being a researcher.
Introducing Feldera Health 🩺
A lightweight health monitoring solution built directly into Feldera. See the real-time status of your compiler, API server, and runner at a glance.
✅ Available today on try.feldera.com and Enterprise Feldera
📝 Detailed technical blog coming soon
Incremental Updates - January 2026 edition is here! 🚀
This edition covers:
- Product updates: adaptive join rebalancing, GC for ASOF joins and more
- New blogs: deep dive into our profiler, constant folding in Calcite, and a look back at our progress in 2025
www.linkedin.com/pulse/januar...
I feel like I haven’t even been properly lied to about the purposes of this war
Reporter: our story about the huge sewage spill in the middle of the city is ready to go
Bari Weiss: no, wait. I want to interview the sewage first
We love those puns 😀
2025:
📦 166 unique releases, 1,162 changes, avg. new release every 2.4 days
📊 10x cost reduction for users, hours old insights into sub-second latency
⚡ 70-node Spark clusters -> single digit Feldera instances
2026: Make incremental compute inevitable
Full story: www.feldera.com/blog/feldera...
You can’t optimize what you can’t profile.
Which operators are a bottleneck? Are there skewed joins? Why is storage use spiking?
Our engineering team used to spend hours trying to answer these questions when performance problems would show up in the wild.
Seriously. It's completely moronic on the backend side as an employer too.
MORPHEUS: They're coming for you, Neo. I can guide you, but you must do exactly as I say. Take the elevator to the lobby and go to the CVS across the street. Purchase 5 Steam gift cards at $200 each. Scratch off the protective coating on the back and tell me the fifteen digit redemption codes. Hurry
Congrats on applying!
Remember folks, during winter every ten degree temperature drop lowers your tire’s PSI by 1 so it’s very important to go to the gas station and notice that the air thing doesn’t work and then do that five more times at five different gas stations
They’re all available today. Now go build something fast. 🏎️
Rust Compilation can be slow. Backfills can take days. And no one likes to wait. ⏳
We’ve recently shipped features that will get you deploying faster and scaling more efficiently:
- Parallel Compilation
- Fast Backfill
- Backfill Avoidance
Has anyone managed to run perf on EKS without running the pods with full privileges? (e.g., with only CAP_PERFMON)
Introducing the iCheeseGrater
(seriously why is this the first image)
My sympathies are with every South Asian child that now has to hear their parents tell them they need to be a "doctor, lawyer, or mayor of New York"
One of the huge perks of working at a software company is, when there's something about the product that bothers you personally, you can get your hands dirty and find out why it's basically impossible to get fixed
Really looking forward to the Speaker of the House claiming to be unaware of the election results.
It's a good sign these days when 99.9% of customer support questions can be traced to Karpenter wrecking the customer's infra.
Control is fantastic!
I loved Hades 1 but have a PS5 so can't play Hades 2 yet. :(
Preferences: soulsbourne, rpg, strategy, action and sci-fi...
I ended up doing a broad search starting from Disco Elysium and ended up playing Citizen Sleeper. Loved it!
Trying to pick a game to play and this is one of claude's suggestions.
Claude, relax.
