Does anyone know how to either turn off or customize the hardware prefetcher on a 7760 running Fedora 34 Linux? I took a look through the BIOS and could not find any support there. I think this requires making a change to an MSR register but I have not been able to find information on either how to do the MSR register change or what to change it to for various configurations. I believe that it is possible on Intel processors to configure the hardware prefetcher to be enabled and prefetching into all cache levels, fully disabled, or configured to prefetch into only a single specified cache level.
