mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-28 21:45:01 +08:00
008d396eb2
The CPU ticks at a rate in the "bus clock" domain. eg. 100 MHz * bus_ratio. On newer processors, the TSC has been moved out of this BCLK domain and into a separate crystal-clock domain. While the TSC ticks "close to" the base frequency, those that look closely at the numbers will notice small errors in calculations that mix units of TSC clocks and bus clocks. "tsc_tweak" was introduced to address the most visible mixing -- the %Busy and the the Busy_MHz calculations. (A simplification as since removed TSC from the BusyMHz calculation) Here we apply the tsc_tweak to everyplace where BCLK and TSC units are mixed. The results is that on a system which is 100% idle, the sum of the C-states are now much more likely to be closer to 100%. Reported-by: Travis Downs <travis.downs@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com> |
||
---|---|---|
.. | ||
.gitignore | ||
Makefile | ||
turbostat.8 | ||
turbostat.c |