Isn't the problem if you have just a small % of your workload or some random binaries on your system doing a view 512 instructions they bonk the rest of your pe

Isn't the problem if you have just a small % of your workload or some random binaries on your system doing a view 512 instructions they bonk the rest of your performance? If I had a little background deamon that used 512 because they were cool or in the hotchips presentation, and that bonked my overall system performance that would be annoying. It's also annoying because intel benchmarks with no mitigations. So what can happen is you think you should be seeing X performance, and then with mitigations applied and some 512 instructions hitting you are Y performance.