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Re:PowerShell vs. Unix shells by pjmlp on Friday July 13, 2012 @07:10AM (#4239261)
As a .NET application Powershell needs to be JITed before execution starts.

However in most systems I never had more than 5s startup time.

Re:PowerShell vs. Unix shells by MatthewPhillips on Friday July 13, 2012 @07:36AM (#4239319)
I have had some long start times like the parent. Typically it's pretty short. I do agree, though, that not having that instance start time is a bit psychologically confusing... it's a shell, how could it not start instantly! However, typically if I'm developing I'll just leave one open at all times and it's not an issue.