On Fri, 2014-06-27 at 12:41 +0200, José Bollo wrote:
> Hi all,
> 
> I just published details of a measurement of the time overhead cost of
> using SAPI.

Just to be clear, this is the fixed overhead for making a method call
via the IPC mechanism used by SAPI, right?

More interesting for the discussion is something else: how much slower
(in percent) will SAPI be compared to CAPI? For that, one needs to look
at which method calls will be wrapped by SAPI - all of the CAPI methods
or only some?

As Carsten pointed out in his email from June 16th, if CAPI has method
calls which execute locally in the process at the moment and SAPI
replaces that with remote procedure calls, then performance will be
considerably slower. If these methods get called often, then this will
matter.

Has this been considered and/or investigated?

-- 
Best Regards, Patrick Ohly

The content of this message is my personal opinion only and although
I am an employee of Intel, the statements I make here in no way
represent Intel's position on the issue, nor am I authorized to speak
on behalf of Intel on this matter.



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