Re:Create mixed reality models in PowerShell
by juststeve on Tuesday January 16, 2018 @08:59AM
(#16158157)
Yep, it really depends on what you're trying to do hey.. I mean, fancy powershell can't out perform good SQL either if the data is already sitting in a database...
Thanks for the link though, those LINQ queries are super fast. i would like to incorporate this into some code at work, but dont quite have the need for it right at this moment.
And, yes, generally the easiest path to faster performance is just loading everything into memory and working with it there. In my PDF script I need to validate that the ID numbers are being read are valid, so I pull all 20,000 of them and put them into a HashSet<String>. That's extremely fast to validate with compared to an array and performs a bit better than a HashTable. There are times when I need to use an SqlDataReader or StreamReader and read row by row or line by line (4 GB+ text files suck), but that's only when memory has become a problem.
I've been meaning to really dig into the High Performance PowerShell with LINQ article (https://www.red-gate.com/simple-talk/dotnet/net-framework/hi...), but I just don't have a need for it at present unless I refactor an existing script and they all work great.