From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Peng Liu <liupeng17@lenovo.com>, Len Brown <len.brown@intel.com>,
Sasha Levin <sashal@kernel.org>,
lenb@kernel.org, linux-pm@vger.kernel.org
Subject: [PATCH AUTOSEL 6.8 03/43] tools/power turbostat: Fix Bzy_MHz documentation typo
Date: Mon, 22 Apr 2024 19:13:49 -0400 [thread overview]
Message-ID: <20240422231521.1592991-3-sashal@kernel.org> (raw)
In-Reply-To: <20240422231521.1592991-1-sashal@kernel.org>
From: Peng Liu <liupeng17@lenovo.com>
[ 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>
---
tools/power/x86/turbostat/turbostat.8 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8
index 8f08c3fd498d5..1ba6340d3b3da 100644
--- a/tools/power/x86/turbostat/turbostat.8
+++ b/tools/power/x86/turbostat/turbostat.8
@@ -370,7 +370,7 @@ 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.
--
2.43.0
next prev parent reply other threads:[~2024-04-22 23:54 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-22 23:13 [PATCH AUTOSEL 6.8 01/43] tools/power turbostat: Fix added raw MSR output Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 02/43] tools/power turbostat: Increase the limit for fd opened Sasha Levin
2024-04-22 23:13 ` Sasha Levin [this message]
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 04/43] tools/power turbostat: Do not print negative LPI residency Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 05/43] tools/power turbostat: Expand probe_intel_uncore_frequency() Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 06/43] tools/power turbostat: Print ucode revision only if valid Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 07/43] tools/power turbostat: Fix warning upon failed /dev/cpu_dma_latency read Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 08/43] btrfs: make btrfs_clear_delalloc_extent() free delalloc reserve Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 09/43] btrfs: always clear PERTRANS metadata during commit Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 10/43] memblock tests: fix undefined reference to `early_pfn_to_nid' Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 11/43] memblock tests: fix undefined reference to `panic' Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 12/43] memblock tests: fix undefined reference to `BIT' Sasha Levin
2024-04-22 23:13 ` [PATCH AUTOSEL 6.8 13/43] nouveau/gsp: Avoid addressing beyond end of rpc->entries Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 14/43] scsi: target: Fix SELinux error when systemd-modules loads the target module Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 15/43] scsi: hisi_sas: Handle the NCQ error returned by D2H frame Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 16/43] blk-iocost: avoid out of bounds shift Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 17/43] accel/ivpu: Remove d3hot_after_power_off WA Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 18/43] accel/ivpu: Improve clarity of MMU error messages Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 19/43] accel/ivpu: Fix missed error message after VPU rename Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 20/43] platform/x86: acer-wmi: Add support for Acer PH18-71 Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 21/43] gpu: host1x: Do not setup DMA for virtual devices Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 22/43] MIPS: scall: Save thread_info.syscall unconditionally on entry Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 23/43] tools/power/turbostat: Fix uncore frequency file string Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 24/43] net: add copy_safe_from_sockptr() helper Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 25/43] nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 26/43] drm/amdgpu: Refine IB schedule error logging Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 27/43] drm/amd/display: add DCN 351 version for microcode load Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 28/43] drm/amdgpu: add smu 14.0.1 discovery support Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 29/43] drm/amdgpu: implement IRQ_STATE_ENABLE for SDMA v4.4.2 Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 30/43] drm/amd/display: Skip on writeback when it's not applicable Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 31/43] drm/amd/pm: fix the high voltage issue after unload Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 32/43] drm/amdgpu: Fix VCN allocation in CPX partition Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 33/43] amd/amdkfd: sync all devices to wait all processes being evicted Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 34/43] selftests: timers: Fix valid-adjtimex signed left-shift undefined behavior Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 35/43] Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 36/43] Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 37/43] hv_netvsc: Don't free decrypted memory Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 38/43] uio_hv_generic: " Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 39/43] Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 40/43] drm/xe/xe_migrate: Cast to output precision before multiplying operands Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 41/43] drm/xe: Label RING_CONTEXT_CONTROL as masked Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 42/43] smb3: fix broken reconnect when password changing on the server by allowing password rotation Sasha Levin
2024-04-22 23:14 ` [PATCH AUTOSEL 6.8 43/43] iommu: mtk: fix module autoloading Sasha Levin
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