XTU Options for Core and Cache

Software Tuning, Performance Optimization & Platform Monitoring

Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.

XTU Options for Core and Cache

1,045 Views

Hello to all,

I am currently using the Intel XTU, which supports undervolting for my processor (i5-4200U). The XTU has some options for changing the voltage of different components, such as Core and Cache. There are two distinct tabs in the GUI of XTU: one for Core and one for Cache. So, I have the following questions:

1. When I change the voltage of Core, is there any change in any cache level? If so, in which one? I suppose that L1 Cache is in the same voltage domain (?).

2. When I change the voltage of Cache, the voltage for which level(s) of cache is changed?

Generally, I am confused about the differences in voltage domains, and the scope in which XTU can be applied.

Link Copied

0 Replies

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.