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Date: Mon, 18 Oct 2010 16:06:41 -0400
From: Martin Turgeon <freebsd@optiksecurite.com>
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To: Adam Vande More <amvandemore@gmail.com>
References: <20101015071719.1536f19e@mail.ose.nl>
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	<AANLkTimT_4D4THvszdDS=U0UKtScGgKZEN4A9e8BB2+f@mail.gmail.com>
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Cc: Bas Smeelen <b.smeelen@ose.nl>, freebsd-questions@freebsd.org
Subject: Re: How is CPU usage calculated?
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  Le 2010-10-18 15:12, Adam Vande More a écrit :
> On Mon, Oct 18, 2010 at 1:54 PM, Martin Turgeon
> <freebsd@optiksecurite.com>wrote:
>
>> I didn't knew about -H to show individual threads, but my problem isn't
>> there. My problem is that the summary printed in the first lines doesn't
>> match the total of the process detailled under the summary. For example, I
>> have a user CPU usage est 83.1% in the summary, but the only process worth
>> mentionning in the list is mysqld that is taking 255.52% WCPU. That's far
>> less than half the "CPU power" but 83% is far more. It's that difference
>> that I don't understand.
>>
>> How is this possible?
>>
> man 1 top
>
> 83.1% doesn't mean what you think it does.
>
I just reread it and it isn't clearer what is using the CPU so much. Can 
you please give me a little more explanation?