There have been many, many blog posts critical of Go in the past couple of years. They're not hard to find. If you're looking for impartiality, the blog of the people who created Go is not the place to look. I am going to keep pointing out how great Go is, because I use it every day and I haven't ever had so much fun programming. That's the truth.
You mischaracterise the blog post about the C++/Java/Scala/Go paper. It was written by Russ Cox, and he used it as an opportunity to demonstrate our profiling tools and how they can help you write fast Go code. (that it refutes the claims of the paper is just gravy ;-)
It begins: "At Scala Days 2011 a few weeks ago, Robert Hundt presented a paper titled “Loop Recognition in C++/Java/Go/Scala.” The paper implemented a specific loop finding algorithm, such as you might use in a flow analysis pass of a compiler, in C++, Go, Java, Scala, and then used those programs to draw conclusions about typical performance concerns in these languages. The Go program presented in that paper runs quite slowly, making it an excellent opportunity to demonstrate how to use Go's profiling tools to take a slow program and make it faster."
You mischaracterise the blog post about the C++/Java/Scala/Go paper. It was written by Russ Cox, and he used it as an opportunity to demonstrate our profiling tools and how they can help you write fast Go code. (that it refutes the claims of the paper is just gravy ;-)
It begins: "At Scala Days 2011 a few weeks ago, Robert Hundt presented a paper titled “Loop Recognition in C++/Java/Go/Scala.” The paper implemented a specific loop finding algorithm, such as you might use in a flow analysis pass of a compiler, in C++, Go, Java, Scala, and then used those programs to draw conclusions about typical performance concerns in these languages. The Go program presented in that paper runs quite slowly, making it an excellent opportunity to demonstrate how to use Go's profiling tools to take a slow program and make it faster."
http://blog.golang.org/2011/06/profiling-go-programs.html