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> as far as I've heard from HFT people Java's relatively popular in HFT Java's popularity depends how HF in HFT is and the threshold for pain developers are wi

> as far as I've heard from HFT people Java's relatively popular in HFT Java's popularity depends how HF in HFT is and the threshold for pain developers are willing to go through to develop Java in a way to avoid GC and reduce memory use (and hence reduce cache misses) Deploying to Linux boxen in colocation facilities is the norm and there is little/no culture of using dotNet on Linux. We all know it exists and it's open source now, but most Linux developers don't reach for dotNet.

TeMPOraL 6y ago
> but most Linux developers don't reach for dotNet On that note, how bad is .NET experience on Linux vs. on Windows? Besides the IDE (MonoDevelop is no Visual Studio). I was about to dig into this topic soon - I'm particularly interested in how useful PowerShell is on Linux these days. On Windows, I appreciate the deep .NET interop it offers; I think it's closest experience to Lisp Machines that you can find in mainstream computing. EDIT: Big thanks to the commenters who mentioned Rider, I didn't realize JetBrains had an IDE for .NET! That said, to clarify my comment above, I'm more interested in the experience with the platform itself - how does .NET Core work on Linux in terms of performance, fragility, access to first-party and third-party libraries? Can I expect non-UI .NET code to port well to Linux? And, in PowerShell, do I get to do things like Add-Type "<insert bunch of C# code here>", or $foo = [Some.dotNET.Type]::new()?
- tester34 6y ago
  I think people on Linux go for Rider/VS Code instead of MonoDevelop
- philliphaydon 6y ago
  I've been full time .NET Core on Ubuntu since Jan 2020. With the occasional booting a windows VM for a legacy project. JetBrains Rider is such a pleasure to work with.
- lol768 6y ago
  Rider is great and surpasses Visual Studio in my opinion.
- pbz 6y ago
  It's been rock solid for us. We're not using PS on Linux, just running/building binaries.
- hackerfromthefu 6y ago
  Its first class these days. You have native linux powershell, sql server, .net 5 (which is 4th linux/core version), vscode/rider or use visual studio with windows subsystem for linux.
- tasogare 6y ago
  I use mainly MacOs with VS Code (it’s no match for the real VS) and deploy dotnet apps in Linux containers (alpine). It’s a small app which more than an hundred users and it’s run fine for a year. I never add issues with libraries only available for Windows.
- scaladev 6y ago
  >Can I expect non-UI .NET code to port well to Linux If it wasn't written with tons of pinvoke to win32 or using Windows-only services (like WCF), then sure. I've been building NET Core applications for Linux and exclusively on Linux for a few years now, mostly using Rider as the IDE. No complaints. I haven't seen any Windows-exclusive libraries worthy of any attention in all that time. Even libraries with tons of native code (like imagemagick) have Linux support. The official MS tooling is behind what they offer on windows, but it's getting there. You can collect GC and memory dumps https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-gcdump https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot... https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-dump https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot... traces: https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-trace https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot... and here's the port of the veritable sos tool: https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-sos https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot...
tester34 6y ago
>and there is little/no culture of using dotNet on Linux. We all know it exists and it's open source now, but most Linux developers don't reach for dotNet. it's pretty weird sentence "most Linux developers dont use dotNet", but on the other hands dotNet (Core) developers definitely do use Linux - I have dotNet things on Linux on prod for 2 years atm
- goodoldneon 6y ago
  Just because some people do a thing doesn’t mean most people do that thing. Most Linux devs don’t use .NET. Maybe they have technical reasons or maybe they just don’t want to use a Microsoft product
  - yread 6y ago
    most people don't do HFT programming either
    - blandflakes 6y ago
      Right, so wouldn't intersecting those groups be even harder?
  - mikeyjk 6y ago
    This sort of sounds like 2 clashing sets of anecdotal data.
  - deleted 6y ago
    [deleted]
- mattferderer 6y ago
  Deployed a small internal .NET Core app on Linux recently. So far it's worked great! I've done a few major version package updates as well without issue.

TeMPOraL 6y ago

> but most Linux developers don't reach for dotNet On that note, how bad is .NET experience on Linux vs. on Windows? Besides the IDE (MonoDevelop is no Visual Studio). I was about to dig into this topic soon - I'm particularly interested in how useful PowerShell is on Linux these days. On Windows, I appreciate the deep .NET interop it offers; I think it's closest experience to Lisp Machines that you can find in mainstream computing. EDIT: Big thanks to the commenters who mentioned Rider, I didn't realize JetBrains had an IDE for .NET! That said, to clarify my comment above, I'm more interested in the experience with the platform itself - how does .NET Core work on Linux in terms of performance, fragility, access to first-party and third-party libraries? Can I expect non-UI .NET code to port well to Linux? And, in PowerShell, do I get to do things like Add-Type "<insert bunch of C# code here>", or $foo = [Some.dotNET.Type]::new()?

tester34 6y ago
I think people on Linux go for Rider/VS Code instead of MonoDevelop
philliphaydon 6y ago
I've been full time .NET Core on Ubuntu since Jan 2020. With the occasional booting a windows VM for a legacy project. JetBrains Rider is such a pleasure to work with.
lol768 6y ago
Rider is great and surpasses Visual Studio in my opinion.
pbz 6y ago
It's been rock solid for us. We're not using PS on Linux, just running/building binaries.
hackerfromthefu 6y ago
Its first class these days. You have native linux powershell, sql server, .net 5 (which is 4th linux/core version), vscode/rider or use visual studio with windows subsystem for linux.
tasogare 6y ago
I use mainly MacOs with VS Code (it’s no match for the real VS) and deploy dotnet apps in Linux containers (alpine). It’s a small app which more than an hundred users and it’s run fine for a year. I never add issues with libraries only available for Windows.
scaladev 6y ago
>Can I expect non-UI .NET code to port well to Linux If it wasn't written with tons of pinvoke to win32 or using Windows-only services (like WCF), then sure. I've been building NET Core applications for Linux and exclusively on Linux for a few years now, mostly using Rider as the IDE. No complaints. I haven't seen any Windows-exclusive libraries worthy of any attention in all that time. Even libraries with tons of native code (like imagemagick) have Linux support. The official MS tooling is behind what they offer on windows, but it's getting there. You can collect GC and memory dumps https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-gcdump https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot... https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-dump https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot... traces: https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-trace https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot... and here's the port of the veritable sos tool: https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dotnet-sos https://docs.microsoft.com/en-us/dotnet/core/diagnostics/dot...

tester34 6y ago

>and there is little/no culture of using dotNet on Linux. We all know it exists and it's open source now, but most Linux developers don't reach for dotNet. it's pretty weird sentence "most Linux developers dont use dotNet", but on the other hands dotNet (Core) developers definitely do use Linux - I have dotNet things on Linux on prod for 2 years atm

goodoldneon 6y ago
Just because some people do a thing doesn’t mean most people do that thing. Most Linux devs don’t use .NET. Maybe they have technical reasons or maybe they just don’t want to use a Microsoft product
- yread 6y ago
  most people don't do HFT programming either
  - blandflakes 6y ago
    Right, so wouldn't intersecting those groups be even harder?
- mikeyjk 6y ago
  This sort of sounds like 2 clashing sets of anecdotal data.
- deleted 6y ago
  [deleted]
mattferderer 6y ago
Deployed a small internal .NET Core app on Linux recently. So far it's worked great! I've done a few major version package updates as well without issue.