Key error when using MacOS 26

[justSiO2]

Traceback (most recent call last):
File "/opt/miniconda3/bin/asitop", line 8, in
sys.exit(main())
File "/opt/miniconda3/lib/python3.9/site-packages/asitop/asitop.py", line 159, in main
ready = get_reading()
File "/opt/miniconda3/lib/python3.9/site-packages/asitop/asitop.py", line 156, in get_reading
ready = parse_powermetrics(timecode=timecode)
File "/opt/miniconda3/lib/python3.9/site-packages/asitop/utils.py", line 29, in parse_powermetrics
cpu_metrics_dict = parse_cpu_metrics(powermetrics_parse)
File "/opt/miniconda3/lib/python3.9/site-packages/asitop/parsers.py", line 112, in parse_cpu_metrics
(cpu_metric_dict["P0-Cluster_active"] + cpu_metric_dict["P1-Cluster_active"])/2)
KeyError: 'P0-Cluster_active'

[philipbergen]

Similar:

Traceback (most recent call last):
  File "/opt/homebrew/Cellar/asitop/0.0.24/libexec/lib/python3.14/site-packages/asitop/utils.py", line 18, in parse_powermetrics
    cpu_metrics_dict = parse_cpu_metrics(powermetrics_parse)
  File "/opt/homebrew/Cellar/asitop/0.0.24/libexec/lib/python3.14/site-packages/asitop/parsers.py", line 100, in parse_cpu_metrics
    (cpu_metric_dict["E0-Cluster_active"] + cpu_metric_dict["E1-Cluster_active"])/2)
     ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
KeyError: 'E0-Cluster_active'

[nicolaschapados]

Similar:

Mac model: Macbook Pro
Chip: M5 Max
macOS version: 26.4.1
asitop version: 0.0.24 via Homebrew
Python version: 3.14 from Homebrew package

Command:
sudo asitop

Error:
KeyError: 'E0-Cluster_active'

Relevant traceback:

Traceback (most recent call last):
  File "/Users/chapados/venvs/asitop/lib/python3.10/site-packages/asitop/utils.py", line 18, in parse_powermetrics
    cpu_metrics_dict = parse_cpu_metrics(powermetrics_parse)
  File "/Users/chapados/venvs/asitop/lib/python3.10/site-packages/asitop/parsers.py", line 100, in parse_cpu_metrics
    (cpu_metric_dict["E0-Cluster_active"] + cpu_metric_dict["E1-Cluster_active"])/2)
KeyError: 'E0-Cluster_active'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/chapados/venvs/asitop/bin/asitop", line 8, in <module>
    sys.exit(main())
  File "/Users/chapados/venvs/asitop/lib/python3.10/site-packages/asitop/asitop.py", line 159, in main
    ready = get_reading()
  File "/Users/chapados/venvs/asitop/lib/python3.10/site-packages/asitop/asitop.py", line 156, in get_reading
    ready = parse_powermetrics(timecode=timecode)
  File "/Users/chapados/venvs/asitop/lib/python3.10/site-packages/asitop/utils.py", line 29, in parse_powermetrics
    cpu_metrics_dict = parse_cpu_metrics(powermetrics_parse)
  File "/Users/chapados/venvs/asitop/lib/python3.10/site-packages/asitop/parsers.py", line 100, in parse_cpu_metrics
    (cpu_metric_dict["E0-Cluster_active"] + cpu_metric_dict["E1-Cluster_active"])/2)
KeyError: 'E0-Cluster_active'

Relevant powermetrics output:

$ sudo powermetrics --samplers cpu_power,gpu_power -n 1                                                                                                                                                                                          Machine model: Mac17,6
OS version: 25E253
Boot arguments:
Boot time: Fri May  8 03:28:36 2026



*** Sampled system activity (Sun May 10 12:26:03 2026 -0400) (5018.95ms elapsed) ***


**** Processor usage ****

P0-Cluster HW active frequency: 1448 MHz
P0-Cluster HW active residency:  11.22% (1344 MHz:  10% 1644 MHz: .09% 1992 MHz: .35% 2304 MHz: .39% 2652 MHz: .35% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz: .00% 4380 MHz: .03%)
P0-Cluster idle residency:  88.78%
P0-Cluster down residency:   0.00%
CPU 0 frequency: 1781 MHz
CPU 0 active residency:   1.63% (1344 MHz: .86% 1644 MHz: .07% 1992 MHz: .21% 2304 MHz: .25% 2652 MHz: .23% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .01%)
CPU 0 idle residency:  98.37%
CPU 0 down residency:   0.00%
CPU 1 frequency: 1719 MHz
CPU 1 active residency:   0.50% (1344 MHz: .26% 1644 MHz: .00% 1992 MHz: .15% 2304 MHz: .08% 2652 MHz: .00% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .00%)
CPU 1 idle residency:  99.50%
CPU 1 down residency:   0.00%
CPU 2 frequency: 2183 MHz
CPU 2 active residency:   0.32% (1344 MHz: .09% 1644 MHz: .00% 1992 MHz: .01% 2304 MHz: .10% 2652 MHz: .11% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .01%)
CPU 2 idle residency:  99.68%
CPU 2 down residency:   0.00%
CPU 3 frequency: 2294 MHz
CPU 3 active residency:   0.11% (1344 MHz: .03% 1644 MHz:   0% 1992 MHz: .01% 2304 MHz: .00% 2652 MHz: .07% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .00%)
CPU 3 idle residency:  99.89%
CPU 3 down residency:   0.00%
CPU 4 frequency: 1732 MHz
CPU 4 active residency:   0.03% (1344 MHz: .02% 1644 MHz:   0% 1992 MHz: .00% 2304 MHz: .00% 2652 MHz:   0% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .00%)
CPU 4 idle residency:  99.97%
CPU 4 down residency:   0.00%
CPU 5 frequency: 1714 MHz
CPU 5 active residency:   0.03% (1344 MHz: .02% 1644 MHz:   0% 1992 MHz: .00% 2304 MHz: .00% 2652 MHz:   0% 2964 MHz:   0% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .00%)
CPU 5 idle residency:  99.97%
CPU 5 down residency:   0.00%

P1-Cluster HW active frequency: 1879 MHz
P1-Cluster HW active residency:  64.93% (1344 MHz:  26% 1644 MHz: 4.4% 1992 MHz:  11% 2304 MHz:  13% 2652 MHz:  10% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz: .03% 4380 MHz: .16%)
P1-Cluster idle residency:  35.07%
P1-Cluster down residency:   0.00%
CPU 6 frequency: 1902 MHz
CPU 6 active residency:  28.57% (1344 MHz:  11% 1644 MHz: 1.8% 1992 MHz: 5.1% 2304 MHz: 6.0% 2652 MHz: 4.6% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .08%)
CPU 6 idle residency:  71.43%
CPU 6 down residency:   0.00%
CPU 7 frequency: 1888 MHz
CPU 7 active residency:  24.97% (1344 MHz: 9.8% 1644 MHz: 1.5% 1992 MHz: 4.4% 2304 MHz: 5.5% 2652 MHz: 3.7% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .06%)
CPU 7 idle residency:  75.03%
CPU 7 down residency:   0.00%
CPU 8 frequency: 1902 MHz
CPU 8 active residency:  21.68% (1344 MHz: 8.0% 1644 MHz: 1.5% 1992 MHz: 4.2% 2304 MHz: 4.7% 2652 MHz: 3.2% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .06%)
CPU 8 idle residency:  78.32%
CPU 8 down residency:   0.00%
CPU 9 frequency: 1909 MHz
CPU 9 active residency:  17.03% (1344 MHz: 6.0% 1644 MHz: 1.5% 1992 MHz: 3.3% 2304 MHz: 3.4% 2652 MHz: 2.7% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .05%)
CPU 9 idle residency:  82.97%
CPU 9 down residency:   0.00%
CPU 10 frequency: 1892 MHz
CPU 10 active residency:  14.04% (1344 MHz: 5.2% 1644 MHz: 1.1% 1992 MHz: 2.8% 2304 MHz: 3.1% 2652 MHz: 1.9% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .04%)
CPU 10 idle residency:  85.96%
CPU 10 down residency:   0.00%
CPU 11 frequency: 1923 MHz
CPU 11 active residency:  11.40% (1344 MHz: 4.1% 1644 MHz: .69% 1992 MHz: 2.4% 2304 MHz: 2.1% 2652 MHz: 2.0% 2964 MHz: .01% 3240 MHz:   0% 3504 MHz:   0% 3696 MHz:   0% 3876 MHz:   0% 4044 MHz:   0% 4176 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4380 MHz: .04%)
CPU 11 idle residency:  88.60%
CPU 11 down residency:   0.00%

S-Cluster HW active frequency: 3094 MHz
S-Cluster HW active residency:  52.47% (1308 MHz:  13% 1620 MHz: .00% 1980 MHz: 6.3% 2292 MHz: 1.6% 2580 MHz: .92% 2880 MHz: .87% 3180 MHz: .64% 3432 MHz: 9.2% 3648 MHz: .47% 3828 MHz: .27% 3984 MHz: .14% 4104 MHz: .05% 4188 MHz:   0% 4236 MHz: .00% 4284 MHz: .15% 4308 MHz: .58% 4332 MHz: 2.2% 4428 MHz:   0% 4512 MHz: .54% 4608 MHz:  16%)
S-Cluster idle residency:  47.53%
S-Cluster down residency:   0.00%
CPU 12 frequency: 2857 MHz
CPU 12 active residency:  11.15% (1308 MHz: 1.7% 1620 MHz: .00% 1980 MHz: 3.2% 2292 MHz: .53% 2580 MHz: .31% 2880 MHz: .41% 3180 MHz: .27% 3432 MHz: 1.9% 3648 MHz: .06% 3828 MHz: .04% 3984 MHz: .05% 4104 MHz: .00% 4188 MHz:   0% 4236 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4332 MHz:   0% 4428 MHz:   0% 4512 MHz:   0% 4608 MHz: 2.6%)
CPU 12 idle residency:  88.85%
CPU 12 down residency:   0.00%
CPU 13 frequency: 3918 MHz
CPU 13 active residency:  17.45% (1308 MHz: .07% 1620 MHz: .00% 1980 MHz: 1.9% 2292 MHz: .87% 2580 MHz: .48% 2880 MHz: .44% 3180 MHz: .29% 3432 MHz: 2.1% 3648 MHz: .06% 3828 MHz: .02% 3984 MHz: .06% 4104 MHz:   0% 4188 MHz:   0% 4236 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4332 MHz:   0% 4428 MHz:   0% 4512 MHz:   0% 4608 MHz:  11%)
CPU 13 idle residency:  82.55%
CPU 13 down residency:   0.00%
CPU 14 frequency: 3013 MHz
CPU 14 active residency:   3.50% (1308 MHz: .06% 1620 MHz:   0% 1980 MHz: .81% 2292 MHz: .49% 2580 MHz: .20% 2880 MHz: .03% 3180 MHz: .06% 3432 MHz: 1.0% 3648 MHz: .20% 3828 MHz: .15% 3984 MHz: .05% 4104 MHz: .00% 4188 MHz:   0% 4236 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4332 MHz:   0% 4428 MHz:   0% 4512 MHz:   0% 4608 MHz: .41%)
CPU 14 idle residency:  96.50%
CPU 14 down residency:   0.00%
CPU 15 frequency: 4041 MHz
CPU 15 active residency:   3.16% (1308 MHz: .01% 1620 MHz:   0% 1980 MHz: .28% 2292 MHz: .15% 2580 MHz: .04% 2880 MHz: .04% 3180 MHz: .02% 3432 MHz: .30% 3648 MHz: .13% 3828 MHz: .01% 3984 MHz: .03% 4104 MHz:   0% 4188 MHz:   0% 4236 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4332 MHz:   0% 4428 MHz:   0% 4512 MHz:   0% 4608 MHz: 2.2%)
CPU 15 idle residency:  96.84%
CPU 15 down residency:   0.00%
CPU 16 frequency: 4247 MHz
CPU 16 active residency:   2.21% (1308 MHz: .01% 1620 MHz:   0% 1980 MHz: .09% 2292 MHz: .10% 2580 MHz: .02% 2880 MHz: .01% 3180 MHz: .01% 3432 MHz: .14% 3648 MHz: .04% 3828 MHz: .01% 3984 MHz: .03% 4104 MHz:   0% 4188 MHz:   0% 4236 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4332 MHz:   0% 4428 MHz:   0% 4512 MHz:   0% 4608 MHz: 1.8%)
CPU 16 idle residency:  97.79%
CPU 16 down residency:   0.00%
CPU 17 frequency: 4135 MHz
CPU 17 active residency:   3.53% (1308 MHz: .01% 1620 MHz: .00% 1980 MHz: .05% 2292 MHz: .02% 2580 MHz: .18% 2880 MHz: .13% 3180 MHz: .13% 3432 MHz: .37% 3648 MHz: .11% 3828 MHz: .08% 3984 MHz: .08% 4104 MHz: .07% 4188 MHz:   0% 4236 MHz:   0% 4284 MHz:   0% 4308 MHz:   0% 4332 MHz:   0% 4428 MHz:   0% 4512 MHz:   0% 4608 MHz: 2.3%)
CPU 17 idle residency:  96.47%
CPU 17 down residency:   0.00%

CPU Power: 2495 mW
GPU Power: 270 mW
ANE Power: 0 mW
Combined Power (CPU + GPU + ANE): 2765 mW

**** GPU usage ****

GPU HW active frequency: 338 MHz
GPU HW active residency:  14.52% (338 MHz:  15% 486 MHz:   0% 636 MHz:   0% 796 MHz:   0% 888 MHz:   0% 988 MHz:   0% 1084 MHz:   0% 1182 MHz:   0% 1278 MHz:   0% 1374 MHz:   0% 1470 MHz:   0% 1578 MHz:   0% 1620 MHz:   0%)
GPU SW requested state: (P1 : 100% P2 :   0% P3 :   0% P4 :   0% P5 :   0% P6 :   0% P7 :   0% P8 :   0% P9 :   0% P10 :   0% P11 :   0% P12 :   0% P13 :   0%)
GPU idle residency:  85.48%
GPU Power: 270 mW