Re: CPU bound

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От Kenneth Marshall
Тема Re: CPU bound
Дата
Msg-id 20101220154847.GX10252@aart.is.rice.edu
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Ответ на Re: CPU bound  (James Cloos <cloos@jhcloos.com>)
Ответы Re: CPU bound
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On Mon, Dec 20, 2010 at 10:33:26AM -0500, James Cloos wrote:
> >>>>> "MG" == Mladen Gogala <mladen.gogala@vmsinfo.com> writes:
>
> MG> Good time accounting is the most compelling reason for having a wait
> MG> event interface, like Oracle. Without the wait event interface, one
> MG> cannot really tell where the time is spent, at least not without
> MG> profiling the database code, which is not an option for a production
> MG> database.
>
> And how exactly, given that the kernel does not know whether the CPU is
> active or waiting on ram, could an application do so?
>

Exactly. I have only seen this data from hardware emulators. It would
be nice to have...  :)

Ken

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