cv::setUseOptimized(), optimizations

asked 2019-04-22 07:39:57 -0600

I am using SGBM algorithm for calculating the disparity map. However, I would like to measure it's true performance without including SIMD support (none of SSE, AVX etc.). Is it possible? I tried to setUseOptimized(false) but I do not see any difference in runtime between setting it to true and false. Is it normal? Is there a better way to deactivate SIMD support and in general optimizations? What other optimization are automatically performed?

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answered 2019-04-23 05:40:44 -0600

mshabunin
1927 ●10 ●31

Not all optimized functions have runtime switches. You can disable optimizations completely during build -DCV_DISABLE_OPTIMIZATION=ON cmake parameter.

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Thank you, is there any way to access SGBM code and see if it has runtime switches? Also could you tell me what other common optimizations are out there that I should take into consideration?

BuenaVentura ( 2019-04-23 05:43:59 -0600 )edit

https://github.com/opencv/opencv/blob... Looks like runtime switch does not work there.

mshabunin ( 2019-04-23 06:06:16 -0600 )edit

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Asked: 2019-04-22 07:39:57 -0600

Seen: 902 times

Last updated: Apr 23 '19

cv::setUseOptimized(), optimizations edit