Linux 3.5 Through Linux 4.4 Kernel Benchmarks: A 19-Way Kernel Showdown Shows Some Regressions

There isn't much to see from the REDIS results.

Well, those are the results from the 19 Linux kernels I was able to test from this Intel Xeon E5-2687W v3 + 16GB DDR4 + 120GB SSD + FirePro V7900 (Cayman) system. When doing such a large comparison, there were certainly more changes in performance than I would have anticipated for this kernel comparison going back to mid-2012. If there is enough interest and support I can see about bisecting some of these performance regressions (thanks in part to being able to reproduce them on this 20-threaded processor) to further analyze what's going on as well as running a similar kernel comparison on some other hardware. If you would like to show your support and allow for future (and more thorough) tests, consider taking advantage of this week's premium deal.