search for: usuitable

...er very simple call on a very fast cpu. JNI calls themselves are said to be pretty fast nowadays (10...40ns). It probably goes accross reflection but still doing pretty much nothing useful in 5ms is horrible benchmark. Is that expected rJava performance? Cause if it is, this means it is completely usuitable for exchanging data with Java. ( I can probably bulk up data in data frames and pass it as a single call to do something with it but then either way i have to do conversion between bulk of R objects and bulk of java objects). Is there's a good performant way to do passing of data.frame's b...