.NET Runtime VS sdk

Make sure to remove any objects made of aluminum foil before clicking "reply".

Take a look at this: https://github.com/dotnet/runtime/blob/main/src/libraries/Sy...

Surely not an afterthought is it? Or take a look at these metrics: https://dotnet.microsoft.com/en-us/platform/telemetry

Can't believe this isn't flagged at this point.

This is a github discussion about an experimental Garbage Collector for .NET that dramatically reduces pause durations, total pause time without significantly damaging throughput

The new GC is introduced in this comment:

https://github.com/dotnet/runtime/issues/96213#issuecomment-...

For understanding, I suggest you open the TransactionScope.cs source code in parallel - source. NOTE: For easy of reading, find the creation of the public TransactionScope(...) instance. At the time of writing this is line 53.

C# - BufferedFileStrategy

> suspending threads in your own process is kind of necessary for e.g. many GC algorithms

True. Maybe the more precise rule is “only suspend threads for a short amount of time and don’t acquire any locks while doing it”?

The way the .NET runtime follows this rule is it only suspends threads for a very short time. After suspending, the thread is immediately resumed if it not running managed code (in a random native library or syscall). If the thread is running managed code, the thread is hijacked by replacing either the instruction pointer or the return address with a the address of a function that will wait for the GC to finish. The thread is then immediately resumed. See the details here:

https://github.com/dotnet/runtime/blob/main/docs/design/core...

> Now imagine multiple of those runtimes running in the same process.

Can that possiblely work? Sounds messy.

The post links to one answer to a StackOverflow question, but the top answer to that same question when sorting by "Trending (recent votes count more)", << https://stackoverflow.com/a/48599119/1083771 >>, suggests exactly* the same thing: use Span.SequenceEqual

*the post suggests that IEnumerable.SequenceEqual is more-or-less the same, but the underlying reason is because Span.SequenceEqual is so fast that the implementation of IEnumerable.SequenceEqual spends a bit of overhead in order to let it use that exact same call when feasible: https://github.com/dotnet/runtime/blob/v9.0.3/src/libraries/...

Request-Id - this is a known header in the .NET ecosystem

Let's go step by step. Looking into dotnet runtime we can find that Libraries.SystemNative acts as a shim (adapter) to a dynamic library called libSystem.Native.

It's not about being "cool"

It's about the motives

"it's open source"

"it now works on linux"

it all doesn't matter if they'll go after your ass if you dare build tooling with their debugger (jetbrains)

of when they want to remove a feature overnight to make it exclusive to visual studio windows

https://github.com/dotnet/sdk/issues/22247

it's this kind of things that makes it hard to recommend to people, and Microsoft can't be trusted

I hate to defend telemetry of all things but in this particular case the criticism is unfounded and lacks context:

https://dotnet.microsoft.com/en-us/platform/telemetry

https://learn.microsoft.com/en-us/dotnet/core/tools/telemetr...

https://github.com/dotnet/sdk/tree/main/src/Cli/dotnet/Telem...

In any case, Debian would use https://github.com/dotnet/source-build and dotnet/dotnet, and could easily include the argument or a patch for this. It’s unlikely to be an issue. My bet it was not in Debian because there was no one to take initiative or there was but that person has faced a backlash by people in Debian who are similar to vocal minority here that posts FUD because of their little personal crusade.

FWIW telemetry can be easily opted-out, which the SDK explicitly tells you about, and there is a page that has full list of the kind of data that is collected (usage metrics and tooling crash stack traces). You can also review the metrics yourself.

About: https://learn.microsoft.com/en-us/dotnet/core/tools/telemetr...

Collected statistics: https://dotnet.microsoft.com/en-us/platform/telemetry

Source code: https://github.com/dotnet/sdk/tree/main/src/Cli/dotnet/Telem...

In either case, many CIs simply have 'DOTNET_CLI_TELEMETRY_OPTOUT=' and call it a day.

They used to gather all command line arguments until they later decided that (oops!) it's "not acceptable per our privacy policies"[0] and they really shouldn't have been doing that. They have also had issues with anonymization not being implemented properly, the opt-out mechanism not working in some edge cases, forgetting to even tell users about the need to opt out, and who knows what else.

Also, monetary value is not the only reason you might want to keep information private.

[0] https://github.com/dotnet/sdk/issues/6145#issuecomment-22010...

[DllImport("libc")] private static extern uint geteuid(); public bool IsCurrentProcessElevated() { if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) { // https://github.com/dotnet/sdk/blob/v6.0.100/src/Cli/dotnet/Installer/Windows/WindowsUtils.cs#L38 using var identity = WindowsIdentity.GetCurrent(); var principal = new WindowsPrincipal(identity); return principal.IsInRole(WindowsBuiltInRole.Administrator); } // https://github.com/dotnet/maintenance-packages/blob/62823150914410d43a3fd9de246d882f2a21d5ef/src/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs#L58 // 0 is the ID of the root user return geteuid() == 0; }

> There's definitely things they tried to improve on that... weren't really improvements. The way "assemblies" are matched in .NET is much more sophisticated- the goal there was to try to kill DLL hell. It evolved into the Global Assembly Cache, which is sort of the Windows Registry of DLLs. Not a huge fan of those bits.

The Global Assembly Cache did not make the jump to the modern .NET (Core). There was the thing called `dotnet store`, but it’s broken since .NET 6: https://github.com/dotnet/sdk/issues/24752

The assembly redirection hell has also been greatly reduced there.

I do the same.

I have a small write-up here: https://chrlschn.dev/blog/2023/10/end-to-end-type-safety-wit...

You get end-to-end type safety (even better once you connect it to EF Core since you get it all ways to your DB).

With this setup with hot-reload (currently broken in .NET 8 [0]), productivity is really, really good. Like tRPC but with one of the most powerful ORMs out there right now.

[0] https://github.com/dotnet/sdk/issues/36918

Noticed an open issue just now.

You're thinking of https://github.com/dotnet/sdk/issues/22247

That's a twisted and wrong narrative

Unity like refers to a Editor driven approach

Unity became popular with its moonscript language (javascript like), they then ditched it to focus on C#, but what propelled unity to what it is today is the Editor driven approach, not c#, not DOTS

They are forced to transpile C# to C++ via IL2CPP as a result to target consoles/mobiles

C# is a disease when it comes to console/mobile support

It's a substantial dependency, quite heavy

And you are not free of unity like fuck ups, it's a microsoft language after all:

https://github.com/dotnet/sdk/issues/22247

And let's not forget when they changed the license of their debugger overnight to prevent people from using it in their products (jetbrains for example)

And them deprecating open source tooling to a proprietary/closed one for vscode (c# devkit)

Let's be careful when we recommend evil as an alternative to evil ;)