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tools/power turbostat: Fix Bzy_MHz documentation typo

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[ 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>
(cherry picked from commit 5225091f94af36e1dddc5bc71abd317dcac4847e)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
This commit is contained in:
Peng Liu 2023-10-07 13:46:22 +08:00 committed by Vegard Nossum
parent 5c0a4f9086
commit 096fb20912
1 changed files with 1 additions and 1 deletions
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tools/power/x86/turbostat/turbostat.8
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@ -296,7 +296,7 @@ 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.