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Code Issues Releases Wiki Activity

tools/power turbostat: Fix Bzy_MHz documentation typo 

[ Upstream commit 0b13410b52 ]

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>
This commit is contained in:
Peng Liu 2023-10-07 13:46:22 +08:00 committed by Greg Kroah-Hartman
parent ab1931d6f8
commit 0ef9d9c3ee
1 changed files with 1 additions and 1 deletions
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tools/power/x86/turbostat/turbostat.8
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@ -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.