TanelPoder's profile picture. Creator of http://0x.tools and a long time computer performance nerd. 
Performance & Troubleshooting Training: https://learn.tanelpoder.com

Tanel Poder 🇺🇦

@TanelPoder

Creator of http://0x.tools and a long time computer performance nerd. Performance & Troubleshooting Training: https://learn.tanelpoder.com

Ghim

Announcing my new Oracle Optimizer, Partitioning and I/O-Intensive Database Handling Deep Dive Training! If you run serious Oracle workloads on-premises or in the cloud and want to learn some practical *and* new things this year, this is it! tanelpoder.com/posts/new-orac…

TanelPoder's tweet image. Announcing my new Oracle Optimizer, Partitioning and I/O-Intensive Database Handling Deep Dive Training!

If you run serious Oracle workloads on-premises or in the cloud and want to learn some practical *and* new things this year, this is it!

tanelpoder.com/posts/new-orac…

New blog: xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 3 - Cardinality Misestimates) tanelpoder.com/posts/xb-sql-s…

TanelPoder's tweet image. New blog: xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 3 - Cardinality Misestimates)

tanelpoder.com/posts/xb-sql-s…
TanelPoder's tweet image. New blog: xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 3 - Cardinality Misestimates)

tanelpoder.com/posts/xb-sql-s…

I just extended the Black Friday sale to the whole month of November! All my existing full-week flagship courses are heavily discounted for the entire month, and more content coming soon! tanelpoder.com/posts/black-fr…

TanelPoder's tweet image. I just extended the Black Friday sale to the whole month of November!

All my existing full-week flagship courses are heavily discounted for the entire month, and more content coming soon!

tanelpoder.com/posts/black-fr…

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Inexperienced specialists in some field tend to think they look smart if they use complicated terminology and abbreviations when talking about that field. This is false belief. They look dumb when talking to more experienced colleagues, who prefer using clear language with simple…


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this repo deserves more stars github.com/postgres-ai/po… gitlab.com/postgres-ai/po… we aim to have the most detailed and advanced monitoring for Postgres -- and it's FOSS because it's just a foundation of something bigger (after 20 years with Postgres, next month will be the most…

samokhvalov's tweet image. this repo deserves more stars 

github.com/postgres-ai/po…

gitlab.com/postgres-ai/po…

we aim to have the most detailed and advanced monitoring for Postgres -- and it's FOSS because it's just a foundation of something bigger

(after 20 years with Postgres, next month will be the most…

postgres_ai monitoring 0.11: VictoriaMetrics, lots of optimizations, new dashboards for table and index analysis, and more github.com/postgres-ai/po…



The first deep dive in my new special-focus training series starts on Wednesday: "Handling the Optimizer, Statistics and Workloads on Partitioned Tables in Oracle Databases" (5-6 Nov 2025 + Q&A followup sessions). One demo table has 100k partitions ;-) Sign up here:…

Announcing my new Oracle Optimizer, Partitioning and I/O-Intensive Database Handling Deep Dive Training! If you run serious Oracle workloads on-premises or in the cloud and want to learn some practical *and* new things this year, this is it! tanelpoder.com/posts/new-orac…

TanelPoder's tweet image. Announcing my new Oracle Optimizer, Partitioning and I/O-Intensive Database Handling Deep Dive Training!

If you run serious Oracle workloads on-premises or in the cloud and want to learn some practical *and* new things this year, this is it!

tanelpoder.com/posts/new-orac…


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This video of Brendan Gregg shouting into a rack to show vibration increases disk latency is hilarious youtube.com/watch?v=tDacjr…

redixhumayun's tweet card. Shouting in the Datacenter

youtube.com

YouTube

Shouting in the Datacenter


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Previously on thatJeffSmith: Execution plans in Oracle SQL Developer for VS Code thatjeffsmith.com/archive/2025/0…


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I would like to thank the haters for helping me promote the new PlanetScale $5 plan all day. Thanks guys. That's right $5.


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When I started working in python, I got lazy with “single assignment”, and I need to nudge myself about it. You should strive to never reassign or update a variable outside of true iterative calculations in loops. Having all the intermediate calculations still available is…


Azure outage, even microsoft.com is down 👀

TanelPoder's tweet image. Azure outage, even microsoft.com is down 👀

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The developer VM has been freshened up! Go get some! oracle.com/database/techn…

connor_mc_d's tweet image. The developer VM has been freshened up! Go get some!
oracle.com/database/techn…

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Lambda syntax varies widely across languages; more widely, I think, than other language features. I wish it weren't so. It's difficult to see the elegance in a new language if the syntax is unfamiliar.

julianhyde's tweet image. Lambda syntax varies widely across languages; more widely, I think, than other language features. I wish it weren't so. It's difficult to see the elegance in a new language if the syntax is unfamiliar.

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It's so great to be in New Orleans for @confluentinc's #current25 conference! I'll be speaking about @morel_lang tomorrow at 2:45 PM.

julianhyde's tweet image. It's so great to be in New Orleans for @confluentinc's #current25 conference! I'll be speaking about @morel_lang tomorrow at 2:45 PM.

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vibe coding:


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Postgres \watch {n} will run the same action again and again after n number of seconds. For example you could watch the pg_stat_activity table every 3 seconds with: select * from pg_stat_activity; \watch 3


Take a moment to appreciate all the Windows support engineers getting late night rebooty calls this weekend


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My explanation that making computer chips is basically the same process as developing film in a dark room is woefully out of date.

The mind-blowing tech behind microchip manufacturing. Lasers fire 50,000 times per second at tin droplets moving 100 m/s, creating extreme ultraviolet light plasma — and that’s just one step inside ASML’s chip-making machine.



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