No, at this moment I have merely done exactly the same tests as on the other PLCs.Have you determined if this is valid yet and, if so, how it is so blazingly fast? If that is accurate it is truly impressive.
As discussed in previous posts, I suspect that something is off. I suggested that the tests were modified, but until we agree on if/what must be modified all I can do is to keep the tests the same.
Apart from that, the 1515SP seems to be almost exactly half as performant as the 1517. The numbers match with a factor 2 over all the tests. At least this shows that the trigonometry test was done in the same way as on the other PLCs, with or without skewed results. I think that the test that is the most uniform is the bubble sort.
About the blazingly fast, I find that the 1515SP is remarkably performant for such a low price. It seems to be the overall conclusion that the "PLCs" that are based on PC hardware (Beckhoff, CodeSys, 1515SP) are significantly more performant than "classic" PLCs. One of the drawbacks of the 1515SP is the long statup time due to it being PC-based, even though it runs on Linux and not Windows.