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Hi all,
I found out that some functions are very slow, for example the function ippiMulScale_8u_C3IR takes up to 4ms by using 1920x1080 image on Intel Core i5 CPU, 8GB RAM. (I'm using IPP 7.0 static linked).
Any suggestion?
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Hi Sascha,
"very slow" is not a measure - which performance do you expect for this function? If 4 ms is "slow" - what is "normal" for you? Could you provide a reproducible with full cpuinfo output for you cpu + ippiLibVersion output? Our PS shows 0.57 cpu clock per pixel per channel for this function that is 1.3 ms for 2.6 GHz Core CPU. Do you call ippInit?
regards, Igor.
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Hi Sascha,
"very slow" is not a measure - which performance do you expect for this function? If 4 ms is "slow" - what is "normal" for you? Could you provide a reproducible with full cpuinfo output for you cpu + ippiLibVersion output? Our PS shows 0.57 cpu clock per pixel per channel for this function that is 1.3 ms for 2.6 GHz Core CPU. Do you call ippInit?
regards, Igor.
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Hi Sascha,
"very slow" is not a measure - which performance do you expect for this function? If 4 ms is "slow" - what is "normal" for you? Could you provide a reproducible with full cpuinfo output for you cpu + ippiLibVersion output? Our PS shows 0.57 cpu clock per pixel per channel for this function that is 1.3 ms for 2.6 GHz Core CPU. Do you call ippInit?
regards, Igor.
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Hi Igor,
"normal" is 0ms, I mean <1ms. But maybe it is not possible with the IPP. How can I get full cpuinfo and ippiLibVersion?
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cpuinfo -- for exampe - you use CPU-Z utility ( for free).
ippiLibVersion - pls use this code:
void libinfo(void) { const IppLibraryVersion* lib = ippiGetLibVersion(); printf(“%s %s %d.%d.%d.%d\n”, lib->Name, lib->Version, lib->major, lib->minor, lib->majorBuild, lib->build); }
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Hi,
ippiGetLibVersion: ippip8_l.lib+ 7.0 build 205.58 7.0.205.1054
cpuinfo: attached

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