Re:Analyzing Core I9-9900K performance with Spectre and Melt...
by sigi45 on Wednesday January 02, 2019 @11:45AM
(#18807506)
Your code always talks directly to the cpu. Your program 'just' runs in a env where it is not allowed to do a few things the kernel is allowed to.
Probing the cpu for timings of memory access you don't have access to, or forcing it to something somewhere where you do have access to, you don't need the kernel for that. Thats the problem.
Probing the cpu for timings of memory access you don't have access to, or forcing it to something somewhere where you do have access to, you don't need the kernel for that. Thats the problem.