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Performance of Get-ChildItem
Hello there, can anybody explain me this:
poshdev >[30]: Measure-Command { Get-ChildItem m:\ -rec }
...
TotalSeconds : 38,5198933
...
poshdev >[31]: Measure-Command { Get-ChildItem m:\ -rec -name }; growl
gci
....
TotalSeconds : 80,8819459
....
I would swear that the -name parameter causes that the performance
will be much better because all the other properties (attributes,
times, ...) don't have to be set.
So.. any ideas?
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 stej
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12/16/2009 9:07:03 AM |
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(the 'growl gci' command should not be there of course. Anyway, it
doesn't affect the results.)
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stej
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12/16/2009 9:18:14 AM
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I'm not sure why adding -name should make it run faster.
Read this Lee Holmes article for some PowerShell team thinking
about the runtime efficiency of Get-ChildItem in a file system context.
http://blogs.msdn.com/powershell/archive/2009/11/04/why-is-get-childitem-so-slow.aspx
- Larry
stej wrote:
> Hello there, can anybody explain me this:
> poshdev >[30]: Measure-Command { Get-ChildItem m:\ -rec }
> ..
> TotalSeconds : 38,5198933
> ..
>
> poshdev >[31]: Measure-Command { Get-ChildItem m:\ -rec -name }; growl
> gci
> ...
> TotalSeconds : 80,8819459
> ...
>
> I would swear that the -name parameter causes that the performance
> will be much better because all the other properties (attributes,
> times, ...) don't have to be set.
> So.. any ideas?
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Larry__Weiss
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12/16/2009 2:46:14 PM
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2 Replies
640 Views
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