low time performance on Ubuntu 14

asked 2017-02-15 10:56:46 -0600

salzis
1 ●1

Hello everyone,

I have a very unusual issue with OpenCV 3.2 on my Ubuntu 14 machine. Time performance for image pre-processing functions such as CvtColor and remap is a way lower as compared to the Windows version. I'm building my application using cmake (in Release mode), OpenCV is compiled in Release as well... Any ideas what can be wrong?!

Many thanks in advance!

Best, Alexey

edit retag flag offensive close merge delete

Comments

Is it same graphic card?

LBerger ( 2017-02-15 11:17:53 -0600 )edit

no, on the Linux machine: GeForce GTX 660 Ti on the Windows: Quadro 1000M

salzis ( 2017-02-15 11:25:32 -0600 )edit

add a comment

1 answer

Sort by » oldest newest most voted

answered 2017-02-15 14:42:54 -0600

LBerger
9317 ●2 ●20 ●88 http://www.traimaocv.fr

Quadro 1000M seems better than GTX 660. opencv can take advantage of the hardware acceleration Opencl or cuda.

edit flag offensive delete link

Comments

This is one possibility, but my best guess, your linux installation probably doesn't have the same optimization flags as the windows installation. Compare your CMAKE outputs step by step.

StevenPuttemans ( 2017-02-16 08:31:15 -0600 )edit

I think my answer is wrong :

LBerger ( 2017-02-16 08:39:48 -0600 )edit

add a comment

Links

Question Tools

1 follower

Stats

Asked: 2017-02-15 10:56:46 -0600

Seen: 190 times

Last updated: Feb 15 '17

low time performance on Ubuntu 14 edit

Comments

1 answer

Comments

Links

Question Tools

Stats

Related questions

low time performance on Ubuntu 14