SoC Power Buddy
A sudoless command-line utility designed to profile per-core frequencies, cycles, instructions, power, and more - for Apple Silicon CPUs and GPUs!
- Table of contents
📰 News!
I just started a new project, Frequency Stats, which is a menubar app that provides CPU and GPU frequency metrics without needing to install a dameon or a kext. It was inspired by this tool, check it out if you want something more convenient for frequency monitoring! New features to come!
Project Deets
Wat it do
SocPowerBuddy samples counter values from the IOReport (across a sampling interval) and returns accurate averages of the related metric.
It is based on reverse engineering powermetrics
, and reports every statistic offered by powermetrics -s cpu_power,gpu_power
(see full metric list and example output), yet without needing sudo
. Note that some metrics and features are exclusive to this project, those of which you will not find in powermetrics
.
Officially tested on M1, as well as M1 Pro, Max, and Ultra (see compatibility notes)
Why it do
Because needing to be system admin in order to monitor Apple Silicon frequencies is dumb (yeah, I'm looking at you, powermetrics
). So here you go! No administrative privileges needed!
Example Output
Note: The following is a nice big juicy output of socpwrbud
running on a Macmini9,1.
Expand Example to see!
Apple M1 T8103 (Sample 1):
4-Core Icestorm ECPU:
Supposed Cycles Spent: 1318404262
Instructions Retired: 1.66480e+09
Instructions Per-Clock: 1.26274
Power Consumption: 65.89 mW
Active Voltage: 825.13 mV
Active Frequency: 1323.49 MHz
Active Residency: 29.4%
Idle Residency: 70.6%
Dvfm Distribution: 972MHz, 771mV: 52.64% (1086ms) 1332MHz, 800mV: 19.08% (394ms) 1704MHz, 887mV: 7.24% (149ms) 2064MHz, 962mV: 21.05% (434ms)
Core 0:
Power Consumption: 14.53 mW
Active Voltage: 831.05 mV
Active Frequency: 1356.95 MHz
Active Residency: 15.6%
Idle Residency: 84.4%
Dvfm Distribution: 972MHz, 771mV: 49.64% (1025ms) 1332MHz, 800mV: 18.59% (384ms) 1704MHz, 887mV: 8.02% (166ms) 2064MHz, 962mV: 23.75% (490ms)
Core 1:
Power Consumption: 13.57 mW
Active Voltage: 831.42 mV
Active Frequency: 1361.03 MHz
Active Residency: 14.9%
Idle Residency: 85.1%
Dvfm Distribution: 972MHz, 771mV: 48.81% (1007ms) 1332MHz, 800mV: 20.44% (422ms) 1704MHz, 887mV: 5.65% (117ms) 2064MHz, 962mV: 25.10% (518ms)
Core 2:
Power Consumption: 12.11 mW
Active Voltage: 838.65 mV
Active Frequency: 1397.5 MHz
Active Residency: 12.1%
Idle Residency: 87.9%
Dvfm Distribution: 972MHz, 771mV: 47.09% (972ms) 1332MHz, 800mV: 17.68% (365ms) 1704MHz, 887mV: 6.34% (131ms) 2064MHz, 962mV: 28.88% (596ms)
Core 3:
Power Consumption: 7.75 mW
Active Voltage: 845.17 mV
Active Frequency: 1424.25 MHz
Active Residency: 9.0%
Idle Residency: 91.0%
Dvfm Distribution: 972MHz, 771mV: 48.17% (994ms) 1332MHz, 800mV: 11.96% (247ms) 1704MHz, 887mV: 7.28% (150ms) 2064MHz, 962mV: 32.60% (673ms)
4-Core Firestorm PCPU:
Supposed Cycles Spent: 3590801722
Instructions Retired: 1.37992e+10
Instructions Per-Clock: 3.84294
Power Consumption: 1912.79 mW
Active Voltage: 1051.20 mV
Active Frequency: 3003.88 MHz
Active Residency: 53.3%
Idle Residency: 46.7%
Dvfm Distribution: 600MHz, 781mV: 0.20% (4ms) 828MHz, 781mV: 0.70% (15ms) 1056MHz, 781mV: 1.85% (38ms) 1284MHz, 800mV: 2.17% (45ms) 1500MHz, 812mV: 1.62% (33ms) 1728MHz, 831mV: 1.62% (34ms) 1956MHz, 865mV: 1.63% (34ms) 2184MHz, 909mV: 1.06% (22ms) 2388MHz, 953mV: 0.95% (20ms) 2592MHz, 1003mV: 0.36% (7ms) 2772MHz, 1053mV: 0.72% (15ms) 2988MHz, 1081mV: 0.36% (7ms) 3096MHz, 1081mV: 0.03% (1ms) 3144MHz, 1081mV: 0.43% (9ms) 3204MHz, 1081mV: 86.30% (1781ms)
Core 4:
Power Consumption: 1038.76 mW
Active Voltage: 1034.99 mV
Active Frequency: 2895.56 MHz
Active Residency: 33.9%
Idle Residency: 66.1%
Dvfm Distribution: 600MHz, 781mV: 0.31% (6ms) 828MHz, 781mV: 1.07% (22ms) 1056MHz, 781mV: 2.68% (55ms) 1284MHz, 800mV: 3.42% (71ms) 1500MHz, 812mV: 2.54% (52ms) 1728MHz, 831mV: 2.55% (53ms) 1956MHz, 865mV: 2.56% (53ms) 2184MHz, 909mV: 1.65% (34ms) 2388MHz, 953mV: 1.48% (31ms) 2592MHz, 1003mV: 0.56% (12ms) 2772MHz, 1053mV: 1.13% (23ms) 2988MHz, 1081mV: 0.56% (12ms) 3096MHz, 1081mV: 0.05% (1ms) 3144MHz, 1081mV: 0.67% (14ms) 3204MHz, 1081mV: 78.77% (1626ms)
Core 5:
Power Consumption: 687.02 mW
Active Voltage: 1044.88 mV
Active Frequency: 2970.58 MHz
Active Residency: 21.5%
Idle Residency: 78.5%
Dvfm Distribution: 600MHz, 781mV: 0.02% (0ms) 828MHz, 781mV: 0.25% (5ms) 1056MHz, 781mV: 2.36% (49ms) 1284MHz, 800mV: 2.66% (55ms) 1500MHz, 812mV: 2.22% (46ms) 1728MHz, 831mV: 2.20% (45ms) 1956MHz, 865mV: 2.41% (50ms) 2184MHz, 909mV: 1.72% (35ms) 2388MHz, 953mV: 0.81% (17ms) 2592MHz, 1003mV: 0.11% (2ms) 2988MHz, 1081mV: 0.01% (0ms) 3096MHz, 1081mV: 0.01% (0ms) 3204MHz, 1081mV: 85.22% (1759ms)
Core 6:
Power Consumption: 23.26 mW
Active Voltage: 836.13 mV
Active Frequency: 1626.58 MHz
Active Residency: 3.1%
Idle Residency: 96.9%
Dvfm Distribution: 600MHz, 781mV: 0.19% (4ms) 828MHz, 781mV: 0.54% (11ms) 1056MHz, 781mV: 15.96% (329ms) 1284MHz, 800mV: 18.74% (387ms) 1500MHz, 812mV: 15.62% (322ms) 1728MHz, 831mV: 15.51% (320ms) 1956MHz, 865mV: 15.60% (322ms) 2184MHz, 909mV: 11.87% (245ms) 2388MHz, 953mV: 5.66% (117ms) 3204MHz, 1081mV: 0.31% (6ms)
Core 7:
Power Consumption: 60.56 mW
Active Voltage: 895.57 mV
Active Frequency: 2009.28 MHz
Active Residency: 4.0%
Idle Residency: 96.0%
Dvfm Distribution: 828MHz, 781mV: 0.17% (4ms) 1056MHz, 781mV: 12.91% (266ms) 1284MHz, 800mV: 14.16% (292ms) 1500MHz, 812mV: 11.83% (244ms) 1728MHz, 831mV: 11.81% (244ms) 1956MHz, 865mV: 11.79% (243ms) 2184MHz, 909mV: 8.32% (172ms) 2388MHz, 953mV: 4.13% (85ms) 3204MHz, 1081mV: 24.89% (514ms)
8-Core Integrated Graphics:
Power Consumption: 2.42 mW
Active Voltage: 627.71 mV
Active Frequency: 711.288 MHz
Active Residency: 2.6%
Idle Residency: 97.4%
Dvfm Distribution: 396MHz, 400mV: 2.69% (56ms) 720MHz, 634mV: 97.31% (2008ms)
Features
The following is sampled per-cluster and is available for all sampled compute units!
- Active and Idle Residencies
- Active Frequencies
- DVFM (Similar to P-State) Distribution and Time Spent
- Power Consumption
- (Static) Silicon IDs
The following is sampled per-cluster but exclusive to the CPU!
- Instructions Retired and Per-cylce
- Supposed CPU Cycles Spent
- (Static) Per-Core metrics
- (Static) Micro architecture names
Installation, Usage, and Making
Note: Tool usage is listed by socpwrbud --help
Install using Homebrew
- If you dont have Hombrew, install it!
- Add my tap using
brew tap BitesPotatoBacks/tap
- Install the tool with
brew install socpwrbud
- Run
socpwrbud
!
Install manually
- Download the bin from latest release.
- Unzip the downloaded file into your desired dir (such as
/usr/bin
) - Run
socpwrbud
!
Building yourself
The source is bundled in a Xcode project and contains a make file. Simply run make
or build via Xcode! The choice is yours.
Outside Influence
This project has recently influenced the CPU/GPU power related metric gathering on NeoAsitop! Yay! Go check it out
Compatibility Notes
Here's a sick table.
Silicon | Codename | Support Status |
---|---|---|
M1 | t8103 | Fully Working |
M1 Pro | t6000 | Works (But no tests for binned 8-Core model) |
M1 Max | t6001 | Fully Working |
M1 Ultra | t6002 | Fully Working (see #5 and patch v0.3.1) |
M2 | t8112 | Should work? |
M2 Pro | t6020 | Should work? |
M2 Max | t6021 | Should work? |
Contribution
If any bugs or issues are found, please let me know in the issues section. If the problem is related to missing IOReport entries, please share the output of the iorepdump
tool found in the latest release. Feel free to open a PR if you know what you're doing