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Using ippsMulC_32f_I introduces some initial performance slowdown

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The recent replacement of a loop into "ippsMulC_32f_I" function introduces performance slowdown on first few iterations.

After few iteration of run, the performance is good. 

IPP Version: IPP 7.0

Linking Type: Static Linking

Is there any way to avoid this initial slow down and improve the performance?

My application code is compiled with -mtune=core7-avx optimization.

I hope the IPP 7.0 has optimized for SSE3.0. Will this avx to sse makes some issue? If yes, why only for few iterations and later it gives good performance?

 


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