Commit 5225091f authored Oct 07, 2023 by Peng Liu Committed by Greg Kroah-Hartman May 17, 2024

tools/power turbostat: Fix Bzy_MHz documentation typo



[ Upstream commit 0b13410b52c4636aacb6964a4253a797c0fa0d16 ]

The code calculates Bzy_MHz by multiplying TSC_delta * APERF_delta/MPERF_delta
The man page erroneously showed that TSC_delta was divided.

Signed-off-by: Peng Liu <liupeng17@lenovo.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent e13c8b6b

tools/power/x86/turbostat/turbostat.8

+1 −1

Original line number	Diff line number	Diff line
		@@ -318,7 +318,7 @@ below the processor's base frequency.

		Busy% = MPERF_delta/TSC_delta

		Bzy_MHz = TSC_delta/APERF_delta/MPERF_delta/measurement_interval
		Bzy_MHz = TSC_delta*APERF_delta/MPERF_delta/measurement_interval

		Note that these calculations depend on TSC_delta, so they
		are not reliable during intervals when TSC_MHz is not running at the base frequency.