PPL and Intel media SDK

PPL and Intel media SDK

Bild des Benutzers kyviquel

Hi,

I would like to integrate the Intel QSV encoder in myproject.There is a point in your known limitations release noteI like to be clarified:

"Using the Intel Media SDK in parallel with Intel Threading Building Blocks could impact performance"
Why does thread management impact the Intel QSV encoder?

Myproject doesn't use Intel TBB but uses the Microsoft concurrency runtimeParallel Paterns Library (PPL) technology. Would the PPLimpact theIntel QSV performance?

Thanks

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Bild des Benutzers Petter Larsson (Intel)

Hi,

I'm sorry the release notes are not very clear. Basically the statement applies to the Media SDK SW codecs and boils down to the fact that the SW codecs utilizes all available logical processor cores when executing a workload. This is regardless of using threading framework such as PPL or TBB, or generic threading. There is always the possibility that the processor cores will be oversubscribed thus potentially impacting performance. Media SDK currently has no mechanism to control the number of internal threads for the SW codecs.

Regards, Petter

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