steplyakov.bsky.social - Profile | ThreadSky | a Reddit-style client for Bluesky

Hey #dotnet folks. Do you ever used (or needed) a debug version of a nuget package? The package has only the managed library, no native code, no executables. Is there a use case for that?

submitted 2 days ago • 2 comments

Hey #dotnet and other folks. Another quite exciting news: I've been mentoring colleges at MSFT for quite some time and now I'm available as a mentor at mentor.sh platform. Here is my profile: mentor.sh/mentors/Serg... Will be happy to be your mentor and learn from each other!

submitted 2 days ago • 0 comments

Hey #dotnet people:) Just published another episode on Dissecting the Code YouTube channel - "Can Tiered Compilation Cause Memory Leaks in .NET". This video is about a change in behavior between full framework on .net 9 in respect to GCInfo and how it affect memory usage.

submitted 5 days ago • 1 comment

Just added a rule to ErrorProne.NET to detect simple recursive calls. This may sound too simplistic, but I've seen such code being checked in by an accident. And I've faced StackOverflowException because of that in my tests before myself as well.

submitted 8 days ago • 1 comment

Ran into the situation again where updating VS broke incremental builds, because a different compiler version is now being stamped into the embedded PDB, invalidating all caches and resulting in different PE file bytes from identical sources. Glad I invested in the fancy PE parser and differ!

submitted 11 days ago • 2 comments

Hey #dotnet people:) Just published another episode on Dissecting the Code YouTube channel - "Dissecting Memory Leaks in .NET". How global events, hidden static collection and timers can cause memory leaks and the ways to avoid it. Link in the comment below.

submitted 13 days ago • 1 comment

Totally agree!

submitted 17 days ago • 0 comments

This article is spot on! Reinvent the Wheel: endler.dev/2025/reinven...

submitted 17 days ago • 2 comments

Hey #dotnet people! I've launched my YouTube channel: "Dissecting the Code". It's going to be very similar to my blog with a lot of deep dives into #dotnet, #csharp etc. I've already published the first two videos: ➡️ Episode 0: What You'll Learn Here ➡️ Episode 1: Dissecting Variable Lifetime

submitted 20 days ago • 2 comments

I don't tweet enough about how amazing the Ultra profiler is: github.com/xoofx/ultra

submitted 22 days ago • 1 comment

Just had a surprising MethodMissingException in tests without changing something (as far as I know, but 🤷). Found this post by @steplyakov.bsky.social which helped me understanding the issue. I haven't solved it yet in my code, but I will... Thanks! sergeyteplyakov.github.io/Blog/csharp/...

submitted 30 days ago • 1 comment

Do you know that CA2241 analyzer (for correct args to formatting methods) is very extensible? It supports: * built-in methods * StringSyntaxAttribute * Methods listed in .editorconfig Try to run it in your codebase, you might be surprised, how many violations do you have!

submitted 41 days ago • 0 comments

I just realized what causes me the most burnout at work. It's when management doesn't realize how much tech debt I'm paying off and how much I'm helping people and the ecosystem. All they see is that my tasks aren't progressing, so they start tightening the screws and micromanaging.

submitted 45 days ago • 6 comments

Ok, here is a thing. "We all know" that a managed instance can be collected during the method call. But do you know that an instance can be GCed before the instance method is called? This works in Release mode only due to the tracking the JIT does via GCInfo. #dotnet

submitted 48 days ago • 1 comment

Hot take: in some cases it is useful to profile an app in debug mode. Was helping in a performance analysis and it was not clear where the time is spent exactly. Re-ran profiler in debug build to see that it was a property getter that was used in a hot loop!

submitted 58 days ago • 1 comment

`dotnet run file.cs` is coming: Allows running C# source files with no need for an explicit backing project. We call these file-based programs (as opposed to project-based programs). github.com/dotnet/sdk/b...

submitted 64 days ago • 24 comments

I haven't written a blog post in a long time! Bridging the Gap: The Future of Aspire medium.com/@davidfowl/b...

submitted 76 days ago • 3 comments

Blogged: Finalizers are tricker than you might think. Part 2. sergeyteplyakov.github.io/Blog/2025/03... This is the second part of the series where I really trying to scare you of dealing with native resources. Let's see if I succeed :) #dotnet

submitted 76 days ago • 3 comments

Just FYI. If you need to check if a char is within a string, using 'str.IndexOf(c) != -1' is way more efficient than using 'str.Contains(c)' which is a call to 'Enumerable.Contains(string, c)'. Actually the IndexOf version is way more efficient! (the results for full framework)

submitted 85 days ago • 2 comments

New release of MSBuild Structured Log Viewer. New dark theme which should be much faster (don't laugh). Turns out the old dark theme we used (AdonisUI) messed with the tree view virtualization, so we saw significant slowdowns in tree layout.

submitted 95 days ago • 0 comments

I’m Ukrainian. So my position is clear.

submitted 103 days ago • 0 comments

I stand with Ukraine and the truth that Russia is an invader.

submitted 103 days ago • 9 comments

I stand with Ukraine and the truth that Russia is an invader.

submitted 103 days ago • 6 comments

Blogged: Finalizers are tricker than you might think, Part 1. The post is very close to a 5 Why type of postmortem we use internally for the incidents where I cover an investigation of crashes caused by NullReferenceExceptions from the finalizers. #dotnet

submitted 105 days ago • 1 comment

A bunch of awesome stuff is coming to .net10! One notable thing: lack of enumerator boxing allocations when iterating over an array via `IEnumerable<T>`. This is awesome! The link to github: github.com/dotnet/runti...

submitted 132 days ago • 0 comments