Hello,
At first.. sorry for my bad english, i´ll do my best.
I am doing a little research about "Labview performance compared to C++" and my goal is to test that how well Labview suits for embedded design where performance is important thing.
I have Labview 8.5 and Embedded Module for Blackfin. Blackfin board is BF537. NI claims that Labview performance is as fast as C, but i´m not so sure about that. I have seen graphs of labview performance somewhere, but now i can´t find those anywhere Anyone have those graphs?
Testing goes as follows: I run example programs (which came with the package) on VisualDSP++ 5.0 and count the number of cycles. After that i run the same program on labview and use profiling tool to count the time. I have been working with Audio Talkthrough code and it seems that Labview is many times slower. I have also programmed a very simple math program which calculates multiplication of floats and again labview seems to be slower. After that I have a number of questions in my mind.
How can i be sure that those example programs are exactly the same (Talkthrough example)? Is it same to calculate cycles and divide it by CLK frequency (600 MHz in BF537 (example: 10000 cycles/600 000 000) and use profiling tool? Has anyone tested this already? I have found only this forum post: http://forums.lavag.org/Execution-speed-in...view-t3291.html
Can anyone help me, please? I would really appreciate it!