tanelpoder.com - Profile | ThreadSky | a Reddit-style client for Bluesky

Workaccount2 on Hacker News just coined the term "context rot" to describe the thing where the quality of an LLM conversation drops as the context fills up with accumulated distractions and dead ends news.ycombinator.com/item?id=4430...

submitted 19 hours ago • 17 comments

yesssss

submitted 18 hours ago • 0 comments

My blog has turned 18 years old! tanelpoder.com/posts/my-blo...

submitted 1 day ago • 0 comments

If you use "AI agents" (LLMs calling tools in a loop) you need to be aware of the Lethal Trifecta Combine access to private data, exposure to untrusted content and the ability to externally communicate and an attacker can trick the system into stealing your data simonwillison.net/2025/Jun/16/...

submitted 3 days ago • 7 comments

GitHub Issues search now supports nested queries and boolean operators: Here’s how we (re)built it Sounds like a simple thing to add, eh? WIth a sufficiently big system, things become complex anyway and having an own custom query parser is always fun.

submitted 11 days ago • 1 comment

"Profile coverage of functional tests without instrumenting your binaries" with eBPF 🐝 From Massimiliano Giovagnoli

submitted 16 days ago • 0 comments

how to read a C++ codebase: 1. compile it with DWARF debug info enabled 2. open it in Ghidra 3. look at the C decompilation

submitted 19 days ago • 10 comments

New benchmark just dropped: SnitchBench by Theo Browne tests if LLMs will snitch on you to the authorities if you feed them incriminating documents and a tool that lets them send email, as seen in the Claude 4 System Card Turns out they pretty much all will! simonwillison.net/2025/May/31/...

submitted 18 days ago • 8 comments

New Blog: Catbench Vector Search Playground has Postgres Query Throughput and Latency Monitoring Now This is a demo app that helps you to learn and experiment with adding vector search-based functionality into new or existing apps! (link in reply)

submitted 19 days ago • 1 comment

The curse of social media: not just for software engineering but other areas as I observe (say, hiring, investing, product management, venture capital etc) Those the best at their craft are usually busy building not writing/posting. Viral posts often wrong in many ways etc Via @icooper.bsky.social

submitted 20 days ago • 7 comments

Previously on the blog. UNLONG my dictionary those pesky LONG columns. https://connor-mcdonald.com/2021/04/06/unlong-my-dictionary-those-pesky-long-columns/

submitted 22 days ago • 0 comments

New blog: Using Postgres pg_test_fsync tool for testing low latency writes An easy to use tool that comes with standard Postgres installation, for testing write latency of devices where you put your WAL/redo logs and any other files requiring low write latency. (link in reply)

submitted 22 days ago • 2 comments

New blog: Using Postgres pg_test_fsync tool for testing low latency writes An easy to use tool that comes with standard Postgres installation, for testing write latency of devices where you put your WAL/redo logs and any other files requiring low write latency. (link in reply)

submitted 22 days ago • 2 comments

BONUS SESSION AT #POUG2025 with @tanelpoder.com !! 💡 Topic: Using eBPF to achieve ASH for everything on Linux ⚙️ Live demo of tools like xtop 🧠 2–3 hours of deep, geek-level insights 📅 Early October | 🎥 Recorded ..book your ticket it before it's too late: poug2025.konfeo.com

submitted 24 days ago • 0 comments

FlameGraphs of #SQL execution plans are a good way to see which are the slowest parts => where you should focus your tuning efforts @tanelpoder.com has tweaked his script to generate these to include Number of starts Row counts

submitted 127 days ago • 0 comments

Postgres IDE in VS Code announced by Microsoft: techcommunity.microsoft.com/blog/adforpo...

submitted 26 days ago • 0 comments

Blog: Python Supports Profiling with Perf - How Does It Work? (2024) Link in reply

submitted 27 days ago • 1 comment

🎬This Friday, @lizrice.com will explore eBPF-based packet filtering with bpfilter eBPF & Cilium Office Hours Friday, 23rd May, 2025 - 7 pm UK time Livestream: youtube.com/live/aNzFneO...

submitted 29 days ago • 0 comments

Ever thought of joining DeepMind's RL team? We're recruiting for a research engineering role in London: job-boards.greenhouse.io/deepmind/job... Please spread the word!

submitted 28 days ago • 1 comment

Today is the last day for getting access to my unique (and awesome) training courses at significant discounts!!! Link in reply!

submitted 29 days ago • 1 comment

Today is the last day for getting access to my unique (and awesome) training courses at significant discounts!!! Link in reply!

submitted 29 days ago • 1 comment

Last week I had the privilege to give a keynote at the International Conference on Performance Evaluation (ICPE'25). It wasn't recorded, so I captured the key points as a blog post: brooker.co.za/blog/2025/05...

submitted 29 days ago • 1 comment

🔬 We've been researching PGO with sampling profiling data for Rust (and LLVM more generally) at Polar Signals. Check out what Tommy has found so far and stay tuned for the next posts in this series! 🧊 www.polarsignals.com/blog/posts/2...

submitted 29 days ago • 0 comments

Back in my young days (of January 2025), I used to pay for multiple AI models from different vendors - to use the best tool for a given task. Now it's only Gemini for me. 2.5 Pro for harder things and 2.5 Flash for quick responses. Lower cognitive overhead of what to use, too.

submitted 29 days ago • 0 comments

DuckDB 1.3.0 is out: - External File Cache (like caching remote S3 file chunks locally) - UUID v7 support - Spatial Join operator - Rewritten Parquet support duckdb.org/2025/05/21/a...

submitted 29 days ago • 0 comments

The comment period for this ends in 3 DAYS. Please leave a comment telling them EVERYONE should be able to get covid boosters. www.regulations.gov/commenton/FD...

submitted 30 days ago • 17 comments

1/11 A thread on Oracle redo copy latch internals. Part 1 - FG latch acquisition

submitted 29 days ago • 1 comment

Getting the OS timezone from the database. Can you think of a better way? connor-mcdonald.com/2025/05/21/d...

submitted 29 days ago • 1 comment

HUGE news 5 years, Epic spending ~$100M on lawyer fees... and the court ruled that Apple cannot block Fortnite just because it uses web payments where Apple cannot take a 30% cut! (I's not Apple's infra, and Apple has nothing to do with it!) Now other apps will follow. Massive

submitted 29 days ago • 4 comments

Functions on columns in the WHERE clause of #SQL queries => poor estimates => poor plans If you must use the functions, @danischnider.bsky.social has these tips to improve estimates in Oracle Dat Function-based index Virtual column Extended statistics

submitted 86 days ago • 0 comments

I'm speaking at this year's #P99CONF as well! Launching the latest version of my 0x.tools xcapture tool as promised, using modern eBPF & all the benefits it provides! "xCapture v3: Efficient, Always-On Thread Level Observability with eBPF" www.p99conf.io

submitted 30 days ago • 1 comment

I'm speaking at this year's #P99CONF as well! Launching the latest version of my 0x.tools xcapture tool as promised, using modern eBPF & all the benefits it provides! "xCapture v3: Efficient, Always-On Thread Level Observability with eBPF" www.p99conf.io

submitted 30 days ago • 1 comment

I extended @ramikrispin.bsky.social's excellent work to use Claude Sonnet 3.7 to translate natural language data queries into runnable SQL. Along the way, I showed that Claude can do this even with English questions against a non-English dataset. www.crosstab.io/articles/llm...

submitted 31 days ago • 1 comment

This is really cool: Getting AI to write good SQL: Text-to-SQL techniques explained cloud.google.com/blog/product...

submitted 33 days ago • 0 comments

Still useful: Scripts for Drilling Down Into Unknown Optimizer Changes (2018) This is about my optimizer_feature_matrix.sql, cofep.sql, cofef.sql scripts for comparing optimizer parameter and fix control flips across optimizer_features_enabled settings. tanelpoder.com/posts/script...

submitted 35 days ago • 0 comments