Jiří Činčura ↹'s Avatar

Jiří Činčura ↹

@cincura.net

About me: https://www.tabsoverspaces.com/about

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13.11.2024
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Latest posts by Jiří Činčura ↹ @cincura.net

Banner for "Lessons learned from translating parameterized collections in EF core".

Banner for "Lessons learned from translating parameterized collections in EF core".

Banner for "Working with strings in .NET and SearchValues".

Banner for "Working with strings in .NET and SearchValues".

I'll have a sessions at Warsaw IT Days.

warszawskiedniinformatyki.pl

Wanna discount? Here it is: WID26SP20.

10.03.2026 18:58 👍 0 🔁 0 💬 0 📌 0

Ain't no engineering like overengineering.

09.03.2026 19:33 👍 0 🔁 0 💬 0 📌 0

I know I'm late to the game, but I finally added OG tags to my blog.

#og #blog #website

08.03.2026 10:12 👍 1 🔁 0 💬 0 📌 0
Using RPKI on MikroTik RouterOS 7 (7.21) | tabs ↹ over ␣ ␣ ␣ spaces by Jiří {x2} Činčura

Blogged: Using RPKI on MikroTik RouterOS 7 (7.21)

www.tabsoverspaces.com/id/233962

#mikrotik #security #bgp #rpki

27.02.2026 14:30 👍 2 🔁 0 💬 0 📌 0
Preview
Is BGP safe yet? · Cloudflare On the Internet, network devices exchange routes via a protocol called BGP (Border Gateway Protocol). Unfortunately, issues with BGP have led to malicious actors being able to hijack and misconfigure ...

My Internet provider (CINCURA, AS215777) implements BGP safely! Check out isbgpsafeyet.com to see if your ISP implements BGP in a safe way or if it leaves the Internet vulnerable to malicious route hijacks.

26.02.2026 20:28 👍 0 🔁 0 💬 0 📌 0
Is it faster to index into an array or use switch statement for lookups? | tabs ↹ over ␣ ␣ ␣ spaces by Jiří {x2} Činčura

Blogged: Is it faster to index into an array or use switch statement for lookups?

www.tabsoverspaces.com/id/233961

25.02.2026 13:01 👍 0 🔁 0 💬 0 📌 0
Preview
Memory Integrity Enforcement: A complete vision for memory safety in Apple devices - Apple Security Research Memory Integrity Enforcement (MIE) is the culmination of an unprecedented design and engineering effort spanning half a decade that combines the unique strengths of Apple silicon hardware with our adv...

Memory Integrity Enforcement: A complete vision for memory safety in Apple devices - Apple Security Research security.apple.com/blog/memory-...

11.02.2026 16:48 👍 0 🔁 0 💬 0 📌 0
Entity Framework Core 10 provider for Firebird is ready | tabs ↹ over ␣ ␣ ␣ spaces by Jiří {x2} Činčura

Blogged: Entity Framework Core 10 provider for Firebird is ready

www.tabsoverspaces.com/id/233960

#efcore #ef #entityframework #entityframeworkcore #firebird

08.02.2026 19:10 👍 1 🔁 0 💬 0 📌 0
.NET Data Community Standup: Adam tells us about Microsoft.Extensions.DataIngestion
.NET Data Community Standup: Adam tells us about Microsoft.Extensions.DataIngestion YouTube video by dotnet

Come www.youtube.com/watch?v=pQiv... and see on Thursday.

08.02.2026 10:58 👍 1 🔁 0 💬 0 📌 0

Why? Who's asking?

08.02.2026 10:48 👍 0 🔁 0 💬 1 📌 0

Hang in there.

05.02.2026 18:15 👍 0 🔁 0 💬 0 📌 0

Approved.

03.02.2026 18:15 👍 0 🔁 0 💬 0 📌 0

Blogged: Dealing with “Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start contai...

www.tabsoverspaces.com/id/233959

02.02.2026 21:45 👍 0 🔁 0 💬 0 📌 0
WUG Days 2026 Praha | tabs ↹ over ␣ ␣ ␣ spaces by Jiří {x2} Činčura

Blogged: WUG Days 2026 Praha

www.tabsoverspaces.com/id/233958

25.01.2026 19:41 👍 1 🔁 1 💬 0 📌 0

Their HEAD will spin.

31.12.2025 12:04 👍 2 🔁 0 💬 1 📌 0
GitHub - FransBouma/RawDataAccessBencher: Bench code which tests entity materialization speed of various .NET data access / ORM implementations Bench code which tests entity materialization speed of various .NET data access / ORM implementations - FransBouma/RawDataAccessBencher

Updated my Raw Data Access Benchmarks to .NET 10, EF Core 10, LLBLGen Pro v5.13 and also bumped some other frameworks to the latest versions. Source and latest results: github.com/FransBouma/R...

30.12.2025 10:05 👍 8 🔁 1 💬 0 📌 0

`Random` has a ctor with `Seed` (upper case S) parameter.

31.12.2025 11:57 👍 1 🔁 0 💬 1 📌 0

You should POST it anyway. You can always DELETE it later.

31.12.2025 11:50 👍 1 🔁 0 💬 1 📌 0

Zítra směr Rakousko, tak jsem si dal radši filtr jen na Ionity. :)

19.12.2025 17:09 👍 0 🔁 0 💬 0 📌 0

Restarty a tak, stejně to nepomohlo. Budou to prej eskalovat. Přejel jsem na innogy. 150 kW. Ale už jsem měl větší SOC, takže 60 kW a pak už jen 37 kW, ale aspoň jsem konečně nabil.

19.12.2025 17:09 👍 0 🔁 0 💬 1 📌 0

Dnešní nabíjecí hra na rodné hroudě. Přijedu na Chargee, mělo to dát 50 kW, ale jelo to 24kW, i po chvíli co jsem si nakoupil v Lidlu. Přejel jsem na E.ON Drive. 120 kW, ale asi po 10 minutách nabíječka odmítla nabíjet. Měl jsem čas, tak jsem to řešil s infolinkou.

19.12.2025 17:09 👍 0 🔁 0 💬 1 📌 0

If you fix every problem for your team, you're not leading -- you're blocking.

Even though it might not seem like it.

It’s tempting, especially when you’re experienced. You see the issue. You know the solution. You want to help.

But if you jump in every time, here’s what happens:

18.12.2025 06:00 👍 0 🔁 1 💬 1 📌 0

Woohoo! The bracket IS the same. #Mikrotik #win

16.12.2025 14:53 👍 1 🔁 0 💬 0 📌 0

About to replace my #Mikrotik wAP ac with wAP ax. The mounting bracket looks the same. But is it really? I guess I'll find out soon. While on a ladder, of course.

16.12.2025 10:59 👍 0 🔁 0 💬 1 📌 0

Code written yesterday is fine. Code written 3 months ago is where the game starts. :)

11.12.2025 11:04 👍 0 🔁 0 💬 0 📌 0
Preview
Connect ZWA-2 anywhere: Use Z-Wave over Wi-Fi or PoE Introducing Portable Z-Wave, an experimental firmware that lets you use Z-Wave over the built-in Wi-Fi or even add PoE.

ZWA-2 over PoE? Nice! I want that!

www.home-assistant.io/blog/2025/10...

06.12.2025 12:10 👍 1 🔁 0 💬 1 📌 0
Open Source Observability: Datadog Alternative Scalable and affordable OpenTelemetry-based observability platform that helps you monitor, understand, and optimize complex distributed systems.

#Uptrace is my new favorite observability/OTEL tool.

uptrace.dev

05.12.2025 16:47 👍 0 🔁 0 💬 0 📌 0
List of functions in hot path.

List of functions in hot path.

Profiling hard. #perf

03.12.2025 13:58 👍 0 🔁 0 💬 0 📌 0

Close to none. Logical structured thinking is IMO more important than pure math.

28.11.2025 16:53 👍 0 🔁 0 💬 0 📌 0
Pivo "plzeň".

Pivo "plzeň".

Tak já jedu do Žiliny, abych si tu dal "plzeň". To je fail.

#codecon #za

www.tabsoverspaces.com/id/233956

26.11.2025 17:23 👍 2 🔁 0 💬 0 📌 0