LetsShip VS .NET Runtime

I have two DigitalOcean sites on the same VPS just serving from kestrel behind an nginx reverse proxy and then one site on a Hetzner VPS where I was playing around with k3s.

For digitalocean I followed this post which is probably way out of date now https://www.hanselman.com/blog/publishing-an-aspnet-core-web...

For the k3s site the source is here https://github.com/EliotJones/LetsShip/blob/main/kubernetes/... though worth noting I have set up LetsEncrypt incorrectly but that's my lack of k3s understanding.

This - https://github.com/EliotJones/LetsShip - hopefully gets you some of the way, it uses VS on Windows for development but I can't imagine the experience in Rider or VS Code for Linux is too disimilar. Individual steps here https://github.com/EliotJones/LetsShip/tree/main/docs/posts

I need to complete the full guide at some point but the end result is an application deployed on Linux with both a web app and independently scalable crawling services with zero downtime deployments. Hosted site here: https://pricefalcon.me/

For a simpler deployment without k3s, this guide is the one I originally followed for my trends site and should still work for .NET 6. https://www.hanselman.com/blog/publishing-an-aspnet-core-web...

One example here https://github.com/EliotJones/LetsShip/blob/main/src/PriceFalcon.JobRunner/Worker.cs#L111 where I have several agent applications each of which may start up to 5 jobs, a job can take a couple of minutes to execute and while running the same request twice isn't the end of the world I'd prefer to avoid it. I use FOR UPDATE when selecting to take an update lock on the row in postgres (similar functionality hopefully exists for your DB).

I just build out a new MVP site for the purposes of a tutorial with .NET 5 and jQuery with some slightly complex front-end requirements (an interactive iFrame that validates user selections server-side on click) and though it may need to move to an SPA if it got more complex for now jQuery is fine (though assuming IE support is not needed I could have probably just used raw JS instead). https://github.com/EliotJones/LetsShip

I've done a complete 180 on this too, I realised I was reacting from my default position of hostility to new concepts rather than an honest appraisal. I am writing it up at the moment but I've been working on a 1 person SAAS MVP tutorial [0] and though I've definitely misconfigured something having the ability to go from git push to deployed to production with 0 downtime inside of 5 minutes with no manual steps is such a nice flow, versus my previous attempts of SCP and faffing around with services.

[0]: https://github.com/EliotJones/LetsShip

It's an interesting "time is a circle" problem given that a century only has 100 years and then we loop around again. 2-digit years is convenient for people in many situations but they are very lossy, and horrible for machines.

It reminds me of this breaking change to .Net from last year.[1][2] Maybe AA just needs to update .Net which would pad them out until the 2050's when someone born in the 1950s would be having...exactly the same problem in the article. (It is configurable now so you could just keep pushing it each decade, until it wraps again).

Or they could use 4-digit years.

[1] https://github.com/dotnet/runtime/issues/75148

These can also be passed as arguments to `dotnet publish` if necessary.

Reference:

- https://learn.microsoft.com/en-us/dotnet/core/deploying/nati...

- https://github.com/dotnet/runtime/blob/main/src/coreclr/nati...

- https://github.com/dotnet/runtime/blob/5b4e770daa190ce69f402... (full list of recognized keys for IlcInstructionSet)

Yes, that is true. I'm not sure about JVM implementation details but the reason the comment says "virtual and interface" calls is to outline the difference. Virtual calls in .NET are sufficiently close[0] to virtual calls in C++. Interface calls, however, are coded differently[1].

Also you are correct - virtual calls are not terribly expensive, but they encroach on ever limited* CPU resources like indirect jump and load predictors and, as noted in parent comments, block inlining, which is highly undesirable for small and frequently called methods, particularly when they are in a loop.

* through great effort of our industry to take back whatever performance wins each generation brings with even more abstractions that fail to improve our productivity

[0] https://github.com/dotnet/coreclr/blob/4895a06c/src/vm/amd64...

[1] https://github.com/dotnet/runtime/blob/main/docs/design/core... (mind you, the text was initially written 18 ago, wow)

If you care about portable SIMD and performance, you may want to save yourself trouble and skip to C# instead, it also has an extensive guide to using it: https://github.com/dotnet/runtime/blob/69110bfdcf5590db1d32c...

CoreLib and many new libraries are using it heavily to match performance of manually intensified C++ code.

DEBUG: packageFiles with updates (repository=local) "config": { "nuget": [ { "deps": [ { "datasource": "nuget", "depType": "nuget", "depName": "Microsoft.Extensions.Hosting", "currentValue": "7.0.0", "updates": [ { "bucket": "non-major", "newVersion": "7.0.1", "newValue": "7.0.1", "releaseTimestamp": "2023-02-14T13:21:52.713Z", "newMajor": 7, "newMinor": 0, "updateType": "patch", "branchName": "renovate/dotnet-monorepo" }, { "bucket": "major", "newVersion": "8.0.0", "newValue": "8.0.0", "releaseTimestamp": "2023-11-14T13:23:17.653Z", "newMajor": 8, "newMinor": 0, "updateType": "major", "branchName": "renovate/major-dotnet-monorepo" } ], "packageName": "Microsoft.Extensions.Hosting", "versioning": "nuget", "warnings": [], "sourceUrl": "https://github.com/dotnet/runtime", "registryUrl": "https://api.nuget.org/v3/index.json", "homepage": "https://dot.net/", "currentVersion": "7.0.0", "isSingleVersion": true, "fixedVersion": "7.0.0" } ], "packageFile": "RenovateDemo.csproj" } ] }

https://github.com/dotnet/runtime/issues/59591

Support zstd Content-Encoding:

We might not be that far away already. There is this issue[1] on Github, where Microsoft and the community discuss some significant changes.

There is still a lot of questions unanswered, but initial tests look promising.

Ref: https://github.com/dotnet/runtime/issues/94620

https://github.com/dotnet/dotnet exists for source build that stitches together SDK, Roslyn, runtime and other dependencies. A lot of them can be built and used individually, which is what contributors usually do. For example, you can clone and build https://github.com/dotnet/runtime and use the produced artifacts to execute .NET assemblies or build .NET binaries.

Yeah, it kind of is. There are quite a few of experiments that are conducted to see if they show promise in the prototype form and then are taken further for proper integration if they do.

Unfortunately, object stack allocation was not one of them even though DOTNET_JitObjectStackAllocation configuration knob exists today, enabling it makes zero impact as it almost never kicks in. By the end of the experiment[0], it was concluded that before investing effort in this kind of feature becomes profitable given how a lot of C# code is written, there are many other lower hanging fruits.

To contrast this, in continuation to green threads experiment, a runtime handled tasks experiment[1] which moves async state machine handling from IL emitted by Roslyn to special-cased methods and then handling purely in runtime code has been a massive success and is now being worked on to be integrated in one of the future version of .NET (hopefully 10?)

[0] https://github.com/dotnet/runtime/issues/11192

[1] https://github.com/dotnet/runtimelab/blob/feature/async2-exp...