[asterisk-users] Is there real benefits on a SMP machine for Asterisk?

[Mik Cheez]

Sorry...I should have been more specific in my original reply.

 >>> In 'top', you can always look at what percentage of your CPU is
 >>> idle. Subtract that from 100 and you've got your load average.

I should have said you get your average load percentage, rather than 
just average load.

Mik Cheez wrote:
> Actually, that looks right...look at your load average...
> 
> Steve Totaro wrote:
>> I don't think that is correct.  I am running worldcommunitygrid and this 
>> is what I get
>>
>> top - 13:18:56 up 3 days, 22:49, 1 user, load average: 4.00, 4.04, 4.02
>>
>> Cpu0:0.0%us,0.7%sy,99.3%ni,0.0%id,0.0%wa,0.0%hi,0.0%si,0.0%st
>> Cpu1:0.0%us,0.0%sy,100.0%ni,0.0%id,0.0%wa,0.0%hi,0.0%si,0.0%st
>> Cpu2:0.0%us,0.3%sy,98.0%ni,0.0%id,0.0%wa,1.7%hi,0.0%si,0.0%st
>> Cpu3: 0.0%us,0.7%sy,99.3%ni,0.0%id,0.0%wa,0.0%hi,0.0%si,0.0%st
>>
>> According to what you are saying my load average should be 100.
>>
>> Thanks,
>> Steve
>>
>> Mik Cheez wrote:
>>> In 'top', you can always look at what percentage of your CPU is idle. 
>>> Subtract that from 100 and you've got your load average.
>>>
>>> Cpu(s):  1.1% us,  0.6% sy,  0.0% ni, *98.1% id*,  0.1% wa,  0.1% hi, 
>>> 0.0% si
>>>
>>> Erik Anderson wrote:
>>>> On 10/12/07, Philipp Kempgen <philipp.kempgen at amooma.de> wrote:
>>>>> I don't think there is a formula like
>>>>> cpu usage = loadavg / #cpus
>>>>>
>>>>> A loadavg of 3 says that there are 3 processes waiting to
>>>>> be executed.
>>>>>
>>>>> Anyway, I'll admit that a loadavg of 3 /might/ be ok.
>>>> Here's a quote from this page:
>>>> http://en.wikipedia.org/wiki/Load_%28computing%29#Unix-style_load_calculation
>>>>
>>>> "For systems with multiple CPUs, the number needs to be divided by the
>>>> number of processors in order to get a percentage."
>>>>
>>>> - Erik
>>>>
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>>
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