Optimizing managed C# vs. native C++ code

re: Optimizing managed C# vs. native C++ code

Thomas — Sat, 21 May 2005 02:56:23 GMT

I must say the way raymond uses C++ strikes me as odd.. more like C with some stuff.

A struct of wstrings in a vector was too slow; so instead he jumped to storing wchar arrays I believe; why? He could've just made the struct a pointer in the first place. Or the wstrings pointers for that matter.

He also didnt reserve a decent sized vector up front, nor did he think to use a boost memory pool for the wstrings or similar approaches; He choose to go lowlevel, even though theres vastly superior options available.

re: Optimizing managed C# vs. native C++ code

Michael — Sat, 21 May 2005 04:49:39 GMT

Say you want to e-mail such a program to a person who you know will run it on a plain Win98 system.

What size of stuff do you have to send to run the C# version, and what size of stuff do you have to send to run the C++ version?

That's why the C++ version is "worth it" in a lot of circumstances.

re: Optimizing managed C# vs. native C++ code

Thomas — Sat, 21 May 2005 17:16:42 GMT

How much is it worth to build applications for systems that are nearly 8 years old?

re: Optimizing managed C# vs. native C++ code

SwitchBL8 — Sat, 21 May 2005 21:30:40 GMT

@Michael: Win98? Tell me your not developing new stuff for Win98? What good does that do the world?

re: Optimizing managed C# vs. native C++ code

Michael — Mon, 23 May 2005 18:57:50 GMT

Win98 was just one example - if you don't like Win98, then how about if the person is running a fully up-to-date Windows XP SP2 installation that was updated to SP2 over the Internet?

They might not have the .NET runtime on it, so if you want to send them this little program you wrote, you also have to e-mail them the entire .NET runtime as well.

re: Optimizing managed C# vs. native C++ code

jonathanh — Thu, 26 May 2005 07:52:35 GMT

Emailing the .NET runtime around is crazy - but thankfully you don't have to do that. Use a bootstrapper in the application installer instead (e.g. http://www.gotdotnet.com/workspaces/workspace.aspx?id=2f8f0a23-f529-4158-8e0a-d187d16f41f1).