René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Get-ChildItem 3x: Replace NoteProperties on FileSystem- and RegistryProvider by class backed CodeProperties.","articleBody":"When using `Get-ChildItem`,  the ProviderBase adds these note properties:\r\n\r\n```\r\nPSChildName\r\nPSDrive\r\nPSIsContainer\r\nPSParentPath\r\nPSPath\r\nPSProvider\r\n```\r\n\r\n\r\nThis is quite expensive, both in terms of memory and execution time.\r\n\r\nBy replacing the noteproperties with a classes that lazily can compute most of the values, we can save both storage and time.\r\n\r\nTiming:\r\n\r\nCommand                                        | 6.1-preview | After change | Speedup\r\n-------------------------------------- | ------------ | --------------- | ----------\r\nGCI -rec -for  d:\\source\\powershell | 0.446 | 0.144 | 3.1 x  \r\nGCI -rec -for  c:\\windows -ea:0        | 12.24 |  6.05 |  2 x\r\nGCI -rec hkcu:\\ -ea:0        | 7.86 |  2.99 |  2.6 x\r\n\r\nCred to @lzybkr  - this was his idea, not mine.\r\n","author":{"url":"https://github.com/powercode","@type":"Person","name":"powercode"},"datePublished":"2018-08-11T12:08:12.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":12},"url":"https://github.com/7501/PowerShell/issues/7501"}