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Natalie Vais

@nvais.bsky.social
308 followers 126 following 15 posts

gp at spark capital ✨ databases, infra, dev tools

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Reposted by Natalie Vais
Frederic Branczyk @brancz.com · 28/07/2026
Flamecharts combined with distributed tracing correlation is such an amazing feature! I love inspecting eg. queries that customers run on Polar Signals this way to see if the query is properly utilizing all cores uninterrupted!
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Tigris Data @tigrisdata.com · 16/06/2026
Trying to do AI training on your dataset but you created everything in it as individual objects? Wouldn't it be great if those freakin' storage nerds would just give you a zipfile with everything you want in it?
tigrisdata.com
Tar saved Unix backups in 1979. Now it saves your dataloader. | Tigris Object Storage
Tigris bundles let you pull thousands of objects in one HTTP request as a streaming tar archive — no more one GET per object. Here's how it works and why.
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ElectricSQL @electric.ax · 16/06/2026
Electric Agents 0.6 is out, with a whole bunch of DX and AX improvements,, including local and remote agent runners, desktop and mobile apps. If you haven't tried it yet, now's a great time to dive in: electric.ax/blog/2026/06...
electric.ax
Electric Agents 0.6 | Electric
Electric Agents 0.6 rounds out the platform launched in April with a broader SDK and runtime surface for long-lived entities, StreamDB state, runners, wakes, signals, schedules, app APIs, and multi-ag...
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James Arthur @thruflo.com · 16/06/2026
If you're running into multi-agent coordination challenges, it's a great time to give Electric Agents a try.
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Tigris Data @tigrisdata.com · 03/06/2026
We partnered with @computesdk to build storagesdk: github.com/storagesdk/s... Buckets should branch like Git, and have forks and snapshots as first-class primitives. Most adapters fake that by copying every object into a sibling bucket. The Tigris adapter does it natively.
github.com
GitHub - storagesdk/storagesdk: A unified TypeScript SDK for storage with first-class support for snapshotting, forking across Tigris, Amazon S3, Cloudflare R2, GCS, Azure Blob, Vercel Blob and many m...
A unified TypeScript SDK for storage with first-class support for snapshotting, forking across Tigris, Amazon S3, Cloudflare R2, GCS, Azure Blob, Vercel Blob and many more. - storagesdk/storagesdk
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TigerBeetle @tigerbeetle.com · 02/06/2026
The full house of speakers for Systems Distributed '26: Andrew Kelley @axboe.bsky.social Gerard Holzmann @jamescowling.dev @heidihoward.bsky.social Ram Alagappan Aishwarya Ganesan @zooko.bsky.social @hillelwayne.com Margaret Holzmann @dominiktornow.bsky.social @joran.tigerbeetle.com
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Frederic Branczyk @brancz.com · 20/05/2026
We care *deeply* (pun intended) about producing the highest quality data for our customers. Incomplete stacks are never great, check out this super fascinating write-up from Tommy on how we vastly improved unwinding of deep python stacks.
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Alfonso Subiotto @asubiotto.com · 28/04/2026
We've been working on a major schema migration at @polarsignals.com that has unlocked some pretty wild improvements. Apart from a 50% (!!) reduction in storage size thanks to logical compression in vortex.dev, there has been a dramatic improvement in query performance.
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TigerBeetle @tigerbeetle.com · 05/05/2026
Join us in July! systemsdistributed.com
systemsdistributed.com
Systems Distributed '26
A conference to teach systems programming and thinking, and how to apply these ideas. All the way across the stack. From systems languages and compilers, to databases and distributed systems.
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TigerBeetle @tigerbeetle.com · 26/03/2026
A Tale of Four Fuzzers: Some time ago, we overhauled TigerBeetle’s routing algorithm to better handle varying network topologies in a cluster And ended up adding not one, not even two, but four very different new fuzzers to the system! tigerbeetle.com/blog/2025-11...
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PGlite @pglite.dev · 25/03/2026
PGlite v0.4 is out 🚀 PostGIS, connection multiplexing, and a major architecture refactor - bringing embedded Postgres closer to native. Now at 13M+ weekly downloads and showing up everywhere from CI to browser-based dev environments. electric-sql.com/blog/2026/03...
electric-sql.com
Announcing PGlite v0.4: PostGIS, connection multiplexing, and a new architecture | ElectricSQL
PGlite v0.4 adds PostGIS, connection multiplexing, and a refactored architecture that decouples initdb from the main WASM binary.
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Frederic Branczyk @brancz.com · 26/03/2026
A historic step for profiling within the OpenTelemetry project!
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ElectricSQL @electric.ax · 31/03/2026
StreamDB - a reactive database in a Durable Stream, designed for AI apps and agentic session state. You give it a Standard Schema. You get type-safe, multiplexed data sync into TanStack DB: electric-sql.com/blog/2026/03...
electric-sql.com
StreamDB — a reactive database in a Durable Stream | ElectricSQL
StreamDB turns a Durable Stream into a reactive database. You provide a Standard Schema, StreamDB gives you type-safe, durable state with sync.
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Tigris Data @tigrisdata.com · 01/04/2026
Tigris is announcing CougarLLM - the world’s first "truly global" inference server: www.tigrisdata.com/blog/cougarl... One endpoint, zero configuration, and zero egress fees. It’s designed so that even your fallback region has a fallback region.
tigrisdata.com
Introducing CougarLLM: A Truly Global Inference Server | Tigris Object Storage
Today we're announcing CougarLLM, a globally distributed inference server that brings zero-egress inference to any open-weight model.
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TigerBeetle @tigerbeetle.com · 02/03/2026
TigerBeetle 0.16.75 is released! - Use transparent huge pages on Linux for a small performance boost. - Fix a fast path optimisation which wasn't being taken. github.com/tigerbeetle/...
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TigerBeetle @tigerbeetle.com · 03/03/2026
Jens @axboe.bsky.social put Linux in the fast lane with io_uring. His son Jonas takes the need for speed to the track. And TigerBeetle is proud to partner. Catch Jonas at Sebring this weekend for the Radical Cup North America season opener!
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Alfonso Subiotto @asubiotto.com · 17/02/2026
I'm happy to share that I will be speaking at #QConLondon on March 16 on deterministic simulation testing at Polar Signals. For anyone interested in attending: SPEAKER60QUK26 for £60 off
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Oblique @oblique.security · 13/02/2026
Our engineering team is cooking 🍳 and sharing great tidbits recently that you might have missed 🧵
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TigerBeetle @tigerbeetle.com · 13/02/2026
January in TigerLand is out! - Improved performance, simplified interfaces - A blog post about bitemporality - Solving the "hot key" problem mailchi.mp/tigerbeetle/...
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The New Stack @thenewstack.io · 11/02/2026
Neoclouds are challenging hyperscalers with a distributed computing architecture-modeled storage layer that supports computing across any cloud. Thanks to @tigrisdata.com
bit.ly
Why Neoclouds Are the Answer To AI Storage Lock-in
Neoclouds are challenging hyperscalers with a distributed computing architecture-modeled storage layer that supports computing across any cloud.
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Oblique @oblique.security · 11/02/2026
In other parts of security, we’ve learned that fixing classes of problems is the only way we can address them for good — but we haven’t had that mindset shift yet in access management. We need better controls, so that we can get to fewer tickets, not faster tickets. oblique.security/blog/access-...
oblique.security
Access requests are a bandaid, not a fix | Oblique
IT teams are overwhelmed with never-ending access requests. Getting off the identity treadmill means getting to fewer tickets over time, not faster tickets.
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TigerBeetle @tigerbeetle.com · 10/02/2026
TigerBeetle 0.16.72 is released! - Dramatically improve view change time - Add support for rotating the AOF - Various documentation improvements github.com/tigerbeetle/...
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Tigris Data @tigrisdata.com · 10/02/2026
If you're a developer, you live in the command line. Tigris' new CLI lets you supercharge your shell with bucket forking, object management, and more all from one easy to use program. It's just an npm install away: npm install -g @tigrisdata/cli
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ElectricSQL @electric.ax · 09/02/2026
AI makes code cheap. The scarce asset is now the system's self-knowledge. Specs and contracts were always valuable—but too expensive to maintain. So we invested sparingly, specs drifted, and we read the code instead. That calculus has flipped with coding agents. electric-sql.com/blog/2026/02...
electric-sql.com
Configurancy: Keeping Systems Intelligible When Agents Write All the Code | ElectricSQL
AI makes code cheap; the scarce asset is the system's self-knowledge. Configurancy is the layer that lets bounded agents coherently co-evolve a system.
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Polar Signals @polarsignals.com · 10/02/2026
ICYMI We have a recap of what we talked about at #FOSDEM! 🧇 🧊 If you're interested in databases, eBPF or Rust this is worth checking out! www.polarsignals.com/blog/posts/2...
polarsignals.com
ICYMI: Polar Signals at FOSDEM
Recap of the talks we gave at FOSDEM developer conference
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TigerBeetle @tigerbeetle.com · 04/02/2026
TigerStyle.dev A new, visual home for TigerStyle -- the software engineering methodology developed by TigerBeetle to produce safer, faster software in less time. "Do the hard thing today to make tomorrow easy." "If you want to be remembered, be remarkable."
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Frederic Branczyk @brancz.com · 13/01/2026
We've been working on something exciting in the Arrow/DataFusion ecosystem, which finally shipped with yesterday's release of DataFusion. You can now use Run-End-Encoded arrays in group by clauses! github.com/apache/dataf...
github.com
Support Aggregating by `RunArray`s · Issue #16011 · apache/datafusion
Is your feature request related to a problem or challenge? It's currently not possible to aggregate by RunArrays. Example code grouping by a `RunArray` use arrow::array::{Array, Int32Array, RunArra...
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Tigris Data @tigrisdata.com · 08/01/2026
What a year! From $25M funding to Git-like bucket forks, our 2025 was all about powering modern AI workflows with fast, flexible object storage. Catch the highlights! 👇
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Alfonso Subiotto @asubiotto.com · 07/01/2026
My EuroRust talk has been uploaded to YT! I cover how we architected our Rust database at @polarsignals.com as a set of state machines to enable deterministic simulation testing and catch hard-to-reproduce bugs before they hit prod.
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Frederic Branczyk @brancz.com · 31/12/2025
What an awesome year at Polar Signals! Some highlights: 📈 >10x data scale ⚡️ Shipped always-on GPU profiling 🦀 Shipped our new Rust/DataFusion/Vortex DB Feeling lucky to get to work with such an incredible team & customers like Vercel, Notion, Canonical, Turbopuffer and more! 2026, we're ready!
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Alfonso Subiotto @asubiotto.com · 23/12/2025
A simple 50-line code change saves us 30% of CPU across our whole infrastructure. This is the magic of system-wide profiling with @polarsignals.com. Easy to spot, easy to fix.
github.com
performance[vortex-array]: don't call is_valid to count bytes in varbinview by asubiotto · Pull Request #5814 · vortex-data/vortex
I noticed that the better blocks compressor uses count_referenced_bytes which calls is_valid on each view and results in an expensive scalar_at call. This was 30% of our system-wide CPU usage over ...
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Polar Signals @polarsignals.com · 18/12/2025
🚀 We recently announced our NVIDIA CUDA always-on profiler. Check out this blog on how to try it out super quickly with your CUDA workload today!🧊 www.polarsignals.com/blog/posts/2...
polarsignals.com
Profiling NVIDIA CUDA in Kubernetes
The easiest way to get started Profiling CUDA in Kubernetes
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ElectricSQL @electric.ax · 09/12/2025
Today we're open-sourcing Durable Streams: a persistent stream primitive and HTTP protocol for reliable, resumable, real-time data streaming to clients. We built it inside Electric. Now we're standardizing it as a standalone protocol.
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Polar Signals @polarsignals.com · 25/11/2025
We completed a major project to switch our storage file format from Parquet to Vortex 🌪️ resulting in 70% average query performance improvement across the board 🚀 Learn more about how rethinking interface-imposed limitations unlocked these gains in our latest blog post 👇
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Sync Conf @syncconf.bsky.social · 12/11/2025
Awesome intro to Sync Conf from @thruflo.com, asking the question where sync fits in this fast changing world of AI. Sync, as it happens, is a key component to this bright future!
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TigerBeetle @tigerbeetle.com · 21/11/2025
"If you can't count correctly with contention at high speed, it's not OLTP. And if you're not doing serializable, if you're cutting corners on isolation, it's not ACID." Full talk: youtu.be/yKgfk8lTQuE
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Tigris Data @tigrisdata.com · 20/11/2025
Aaron Francis captured it perfectly on Database School: with Tigris, ‘the region is just Earth.’ No CDNs, no cross-region replication, no complex DR— Reliability is the default on Tigris. Link to the full episode below 👇
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TigerBeetle @tigerbeetle.com · 10/11/2025
Excited to announce the TigerBeetle 1000x World Tour! 13 Cities in 6 Days, December 1-6 From AMS, BLR and CPT to VIE—join us! tigerbeetle.com/event/1000x
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TigerBeetle @tigerbeetle.com · 07/11/2025
October in TigerLand is out! - TigerBeetle’s Write Ahead Log utilization is doubled! - The first Table Mountain Database Management Seminar in Cape Town - @synadia.bsky.social, TigerBeetle pledge $512K over two years to the Zig Software Foundation @ziglang.bsky.social mailchi.mp/tigerbeetle/...
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Polar Signals @polarsignals.com · 04/11/2025
Ever wondered how your browser devtools jumps from bundle.min.js:1:27698 → src/index.ts:73:16? 🧊 We unpack the internals of JS Source Maps: Base64 VLQ encoding, mapping deltas, and how your original TS code gets reconstructed from minified bundles. 🔗 www.polarsignals.com/blog/posts/2...
polarsignals.com
The Inner Workings of JavaScript Source Maps
A deep dive into how JavaScript source maps work under the hood, with examples showing how all the pieces fit together.
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TigerBeetle @tigerbeetle.com · 04/11/2025
Peter Boncz's Vineyard Lecture: - A brief history of the gains unlocked by generalization of compute - The temptation towards specialization and a new era of GPUs - What this means for DBMS design and embedded programming style #TMDBMS
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TigerBeetle @tigerbeetle.com · 05/11/2025
Philippe Bonnet's Poolside Lecture: - NVMe SSDs today: high write amplification, spiky latency, weak guarantees - Mismatched out-of-place internal writes and in-place block device interface - The future: programmable, internals tuned for custom NVMe commands #TMDBMS
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Tigris Data @tigrisdata.com · 04/11/2025
Tigris Data is proud to sponsor #RaySummit, where the next generation of AI is being built! Come meet the Tigris team and let’s talk object storage for agents, pipelines, and experimentation— the storage layer that scales with you! 📍 Marquis Marriott in SF today & tomorrow!
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Tigris Data @tigrisdata.com · 23/10/2025
We built bucket forking so agents can safely use tools and run experiments without corrupting shared environments, especially when running in parallel. Learn how every agent gets an instant, isolated sandbox to test, iterate, and scale without conflicts. www.tigrisdata.com/blog/build-a...
tigrisdata.com
Build better AI agents with bucket forking | Tigris Object Storage
Prevent rogue agent behavior by giving every agent an instant, isolated bucket fork—no data duplication, safe concurrency, and easy rollback with snapshots.
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Frederic Branczyk @brancz.com · 24/10/2025
I had a great time talking about GPU profiling at Ubuntu Summit! Thanks everyone for joining!
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Frederic Branczyk @brancz.com · 22/10/2025
I could not be more excited about this. To our knowledge, the world's first open-source low-overhead always-on GPU profiler! As always, zero-instrumentation and powered by #eBPF!
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Tigris Data @tigrisdata.com · 14/10/2025
Will we see you at #PyTorchCon, Oct 22-23 in San Francisco? Here are the five talks Tigris is most looking forward to, each one showcasing performance optimizations for AI workloads. See all these and more, and come chat with Tigris about how we're building the storage layer for AI!
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Tigris Data @tigrisdata.com · 09/10/2025
Big news! @tigrisdata.com raised $25M Series A led by Natalie Vais of Spark Capital w/ Martin Casado of a16z + Basis Set. Tigris is a faster, freer, AI-native storage cloud– running on our own hardware. Already powering fal.ai, krea.ai & Hedra. Let’s build the open cloud for AI. Read more on TC
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TigerBeetle @tigerbeetle.com · 25/09/2025
TigerBeetle at the New York Stock Exchange! Last night, a panel and networking with @redpanda.com at 1792; this morning, a studio session with theCUBE. Times we'll remember, together building the future of transaction processing.
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Natalie Vais @nvais.bsky.social · 11/09/2025
Summer of OLTP continues... - databricks acquires neon for $1B - snowflake acquires @crunchydata.com for $250M - mariaDB (re)acquires @skysql.bsky.social - temporal acquires crystaldba - vector (PE firm) buys @singlestore.com - @supabase.com raising at $5B turns out everyone needs txns 🙂
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