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convert CPU load to CPU utilization in %
Hi,
Is it possible to convert the cpu load average (5min) got from the
output of uptime to cpu utilization in %? If so, how to?
Thanks in advance.
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yc282004 (55)
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12/11/2009 5:32:39 AM |
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Dolphin wrote:
> Hi,
>
> Is it possible to convert the cpu load average (5min) got from the
> output of uptime to cpu utilization in %? If so, how to?
Load average is for the system, not the (a) CPU.
--
Ian Collins
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Ian
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12/11/2009 6:33:50 AM
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In article <bb06aac4-258c-453f-9648-85cc4df0121a@g1g2000pra.googlegroups.com>,
Dolphin <yc282004@yahoo.com.sg> writes:
> Hi,
>
> Is it possible to convert the cpu load average (5min) got from the
> output of uptime to cpu utilization in %? If so, how to?
>
> Thanks in advance.
loadave is (average) count of runnable threads, regardless if
they are running on a CPU or waiting to run, and modulo
sampling errors.
Whilst CPU usage can't exceed 100%, loadave can exceed number
of CPUs. I think all you can say is that if loadave < number
of CPUs, then there's some idle time. However, with cores
and strands nowadays, just what a CPU is in this context
isn't really clear anymore either.
So the answer is basically No.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
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andrew
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12/13/2009 8:25:18 PM
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In article <hg3ije$6ft$1@news.eternal-september.org>,
Andrew Gabriel <andrew@cucumber.demon.co.uk> wrote:
>In article <bb06aac4-258c-453f-9648-85cc4df0121a@g1g2000pra.googlegroups.com>,
> Dolphin <yc282004@yahoo.com.sg> writes:
>> Hi,
>>
>> Is it possible to convert the cpu load average (5min) got from the
>> output of uptime to cpu utilization in %? If so, how to?
>>
>> Thanks in advance.
>
>loadave is (average) count of runnable threads, regardless if
>they are running on a CPU or waiting to run, and modulo
>sampling errors.
>
>Whilst CPU usage can't exceed 100%, loadave can exceed number
>of CPUs. I think all you can say is that if loadave < number
>of CPUs, then there's some idle time. However, with cores
>and strands nowadays, just what a CPU is in this context
What's a "strand"? THANKS!
>isn't really clear anymore either.
>
>So the answer is basically No.
>
>--
>Andrew Gabriel
>[email address is not usable -- followup in the newsgroup]
David
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dkcombs
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12/31/2009 4:01:32 AM
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3 Replies
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