>> I am evaluating Linux for use as an operating system in a real-time embedded application, however, I find it hard to find recent data with respect to the real-time performance of Linux. Do you have, or know of someone who has, information on the real-time performance of the Linux kernel, preferably under various load conditions?
> I get this type of question a lot, in various forms. The very simple answer is: "No, there is no data, you should evaluate it yourself on your hardware platform, with your system loads, to determine if it meets your requirements." And in reality, that's what you should be doing in the first place even if there were "numbers" published anywhere. Don't trust a vendor, or a project, to know exactly how you are going to be using the operating system. Only you know best, so only you know how to determine if it solves your problem or not.
> So, go forth, download the code, run it, and see if it works. It's really that simple.
Unfortunately, often it is not. I don't know this particular case, but in my experience the decision about the OS and hardware platform are done early on, much before the software to be run and tested is even designed.
There's a reason why vendors publish those numbers.