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Re: One glob (*cbp) slow, other (*1000) fast, why?

Ah, it's obvious, I've forgot what NY1 does, returns after first match.. :)

Best regards,
Sebastian Gniazdowski


On 8 September 2016 at 10:47, Sebastian Gniazdowski <sgniazdowski@xxxxxxxxx>
wrote:

> Hello,
> on a directory with 80000 files (result of touch {1..2000}
> {1..2000}{a..c}) I do:
>
> typeset -F SECONDS; myst=$SECONDS; tmp=( *cbp(NY1) ); echo $(( (SECONDS -
> myst) * 1000 ))
>
> it returns: 80.449999999927968
>
> then I do:
>
> typeset -F SECONDS; myst=$SECONDS; tmp=( *1000(NY1) ); echo $(( (SECONDS -
> myst) * 1000 ))
>
> it returns: 0.15299999995477265
>
> Why such a difference?
>
>
> More:
>
> typeset -F SECONDS; myst=$SECONDS; tmp=( *10000(NY1) ); echo $(( (SECONDS
> - myst) * 1000 ))
> 0.2779999999802385
> typeset -F SECONDS; myst=$SECONDS; tmp=( *100000(NY1) ); echo $(( (SECONDS
> - myst) * 1000 ))
> 78.060000000277796
>
> I.e. it starts to be slow at 5 or more zeros.
>
> Best regards,
> Sebastian Gniazdowski
>
>
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