ippiYCbCrToRGB_JPEG_8u_P3C3R very slow on Core Duo

[ulbrich]

Hello,

our application uses the ippiYCbCrToRGB_JPEG_8u_P3C3R compression routine with IPP 5.3.1.062. On an old Centrino the application runs with 6-10% cpu usage. The same code though uses approximately 80% on a fast Core Duo processor using the same version of the IPP.
Any suggestions what could cause the problem?

Thank you in advance,
cheers,
Stefan

[Vladimir_Dudnik]

Hi Stefan,

This function is threaded so it will utilize all available cpu cores when you link with IPP DLLs (and so should do the same work faster).

You may link your application with IPP static libraries if you prefer to implement threading on application level (or just do not want to utilize all cpu cores).

Regards,
Vladimir