Can anyone here tell me where the IA32_TSC_AUX_MSR of each hw-thread register is set?Is it set by the operating system?
Thanks in advance.
Linux has supported this MSR since it was first introduced at least 10 years ago.... I don't know if the code that sets the values is in the same place from generation to generation, but I have not run across incorrect values in the MSR....
For more complete information about compiler optimizations, see our Optimization Notice.