Performance and Technique Tweaks: The Encore
summary
Shows a concrete implementation of Smart Aliases that inspects MyInvocation to map alias names to resources and uses dynamic parameters to make some aliases require a country, demonstrates creating a clickable file view with a PSM1 XML view generator (credits to Jeffrey Hick), proves PowerShell 7.5 fixes += so array concatenation cost drops (10000 appends ≈1s before), builds a frozen dictionary pattern to make module private data truly immutable, and compares runspace data passing, LINQ/C# Fibonacci speedups, and sorting/uniquing benchmarks so listeners know what actually works.
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chapters (15)
- 0:00Introduction
- 2:00Recap of technique tweaks
- 3:11Smart Aliases for API
- 13:55Dynamic parameter handling
- 23:50Custom views for object output
- 34:40PowerShell array performance
- 43:06Passing data across runspaces
- 48:28Storing module configuration
- 59:53PowerShell vs C# performance
- 1:04:13LINQ in PowerShell
- 1:09:02Parameter passing by reference
- 1:16:32Default values and safety
- 1:18:00Efficient sorting and deduplication
- 1:26:35Generalized deduplication
- 1:28:42Q&A
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