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Get-ChildItem to a file is 2x slower than CMD #12817

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@asklar

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@asklar
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Steps to reproduce

(Measure-Command { dir -Recurse C:\rnw | Out-File C:\temp\1.txt }).TotalSeconds

takes 15.222019 seconds
whereas CMD:

C:\temp\timecmd.cmd "dir /s C:\rnw > C:\temp\1.txt"

command took 0:0:8.47 (8.47s total)

Expected behavior

Same performance as CMD.

Actual behavior

2x slower than CMD

Environment data

Name                           Value
----                           -----
PSVersion                      7.0.1
PSEdition                      Core
GitCommitId                    7.0.1
OS                             Microsoft Windows 10.0.20133
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0
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    Issue-Questionideally support can be provided via other mechanisms, but sometimes folks do open an issue to get aideally support can be provided via other mechanisms, but sometimes folks do open an issue to get aResolution-DuplicateThe issue is a duplicate.The issue is a duplicate.

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