using get_system_info() - obtaining system load averages

[Tofik Suleymanov]

kamal kc wrote:

>--- Peter Jeremy <PeterJeremy at optushome.com.au> wrote:
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>>On Mon, 2006-Jan-09 23:59:10 -0800, kamal kc wrote:
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>>>thanks i tried getloadavg() it worked.
>>>
>>>but when i tried to put it in the kernel the kernel
>>>failed to link. 
>>>      
>>>
>>You didn't mention the kernel bit before.  To access
>>the load average in the kernel, you just access
>>"averunnable" (see <sys/resource.h>).  Note that you
>>cannot do floating point arithmetic in the kernel so
>>the load averages are stored as fixed point numbers.
>>
>>    
>>
>
>thanks , it worked !!!! 
>
>i used the ldavg[] and fscale of averunnable to get
>the system load.
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>
>you people are great .. 
>
>kamal
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Just a curiosity: why use kernel-space functions to get system load ? 
Isn't it better to use sysctls in user-space ?