Hardware prefetcher and adjacent line cache status: enabled or disabled.
Hardware prefetcher and adjacent line cache status: enabled or disabled.
Hello, your new computer has two notable CPU settings in BIOS: hardware prefetcher and adjacent line cache. I’m not sure if enabling them is recommended, but it might help. Regarding the Intel Forum, it can assist you with such issues—just be cautious of any strange links or blank pages. Everything else seems to be working fine.
Performed a CPU benchmark test with and without power. Results are available—please let me know!
Relies on the processor model. Keep modern CPUs/mobiles active. Disable older units (pre-Pentium 4) if possible. "New" here refers to unfamiliarity, not absolute novelty. A hardware prefetcher manages this by suggesting the CPU fetch instructions and data it anticipates needing. The specifics of how this operates are covered in academic texts. The adjacent line cache assumes larger data requests mean bigger needs. Whether this technique aids performance hinges on the application's design and usage patterns. Usually, programs that don't use adjacent line caching are either poorly constructed or targeting unique tasks like pattern matching searches.
The values 64 and 128 were measured in bytes, not kilobytes. The approach for caching data on adjacent lines focuses on anticipating code sequences, like fetching the next instruction in a program or array element as you loop through it.
I see. Did look for some information yesterday. Here's a link I found. Ill read this more later for sure, do some learning. I do know on older AMD stuff that turning cache on and or off can help with some benching, but not terrible familiar with Intel stuff like this. Thank you. https://software.intel.com/en-us/forums/...pic/635075
I turned off both hardware prefetcher and adjacent cache line prefetch since I want to run a full test of all four settings. This caused a noticeable slowdown in SuperPi, around a minute slower. The second score wasn’t recorded because the first one was already saved for that test, and in 3D Mark I got roughly 300 points lower for CPU and overall. After doing two trials to check for errors, the results were very similar, giving me just about one difference. I’m keeping both enabled, thanks for your suggestions!
I turn off hardware and nearby line prefetch together with virtualization. If you need to run virtualization, enable core isolation now. For CPUs that aren’t heavily constrained by GPUs, leaving them on can improve performance. In my setup I have a GTX 1080 and an Xeon X5675 X58, and leaving them disabled gives a noticeable jump in FPS.