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Re: [PATCH] core-count: A new program to count the number of cpucores


From: Pádraig Brady
Subject: Re: [PATCH] core-count: A new program to count the number of cpucores
Date: Tue, 27 Oct 2009 10:31:31 +0000
User-agent: Thunderbird 2.0.0.6 (X11/20071008)

Bruno Haible wrote:
> Pádraig Brady wrote:
> 
>> Hmm it's a bit surprising that min()/max() are not available
>> as $((shell arithmetic)) or in `expr`.  Consequently I agree that
>> adding the option you suggest is useful.
> 
> But min() and max() are available through the 'test'
> program or shell built-in command. If the user can write
> 
>   n=`count-cores`
>   test ! $n -gt 5 || n=5
>   test ! $n -lt 2 || n=2
> 
> there is no big advantage in additional optional that allow him to
> write
> 
>   n=`count-cores --min=2 --max=5`

No big advantage no. But when you also add in the relative calculation
for getting n-1 for example, then it's get's a little too messy in shell
for a very common case.

cheers,
Pádraig.





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