What does machdep.xcpm.cpu_thermal_level mean?

Solution 1:

If I had to guess, I'd say it's the amount of throttling that is slowing down your CPU to prevent it overheating under high load. See the table below - it only rises about 0 when the temp and load increase:

I use this command:

sudo powermetrics --samplers smc | perl -ne 'chomp; print "$_ " if(/:/); print "\n" if(/prochots/)'

so you can see how things change over time in a nice table - .eg.

Machine model: MacBookPro13,3 SMC version: 2.38f7 EFI version: 428.0.0 OS version: 17G14033 Boot arguments:  Boot time: Fri Nov  6 07:25:45 2020 *** Sampled system activity (Fri Nov  6 08:26:45 2020 +1000) (5006.45ms elapsed) *** CPU Thermal level: 68 GPU Thermal level: 26 IO Thermal level: 26 Fan: 3859 rpm CPU die temperature: 50.18 C GPU die temperature: 50.38 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:26:50 2020 +1000) (5004.48ms elapsed) *** CPU Thermal level: 68 GPU Thermal level: 26 IO Thermal level: 26 Fan: 3824 rpm CPU die temperature: 50.21 C GPU die temperature: 50.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:26:55 2020 +1000) (5002.27ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 26 IO Thermal level: 26 Fan: 3779 rpm CPU die temperature: 50.31 C GPU die temperature: 50.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:00 2020 +1000) (5003.69ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 25 IO Thermal level: 25 Fan: 3778 rpm CPU die temperature: 50.24 C GPU die temperature: 50.44 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:05 2020 +1000) (5002.30ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 25 IO Thermal level: 25 Fan: 3749 rpm CPU die temperature: 50.22 C GPU die temperature: 50.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
[snip]
*** Sampled system activity (Fri Nov  6 08:27:15 2020 +1000) (5003.86ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 24 IO Thermal level: 24 Fan: 3708 rpm CPU die temperature: 50.25 C GPU die temperature: 50.69 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:20 2020 +1000) (5003.40ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 24 IO Thermal level: 24 Fan: 3666 rpm CPU die temperature: 50.42 C GPU die temperature: 51.12 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:25 2020 +1000) (5004.57ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 24 IO Thermal level: 24 Fan: 3652 rpm CPU die temperature: 50.58 C GPU die temperature: 50.81 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:30 2020 +1000) (5004.42ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 23 IO Thermal level: 23 Fan: 3625 rpm CPU die temperature: 50.56 C GPU die temperature: 50.62 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:35 2020 +1000) (5004.54ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 23 IO Thermal level: 23 Fan: 3611 rpm CPU die temperature: 50.55 C GPU die temperature: 50.88 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:40 2020 +1000) (5004.30ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 23 IO Thermal level: 23 Fan: 3570 rpm CPU die temperature: 50.55 C GPU die temperature: 50.94 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:45 2020 +1000) (5004.38ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 22 IO Thermal level: 22 Fan: 3558 rpm CPU die temperature: 50.59 C GPU die temperature: 51.19 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:50 2020 +1000) (5004.17ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 22 IO Thermal level: 22 Fan: 3536 rpm CPU die temperature: 50.73 C GPU die temperature: 51.44 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:27:55 2020 +1000) (5003.72ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 22 IO Thermal level: 22 Fan: 3520 rpm CPU die temperature: 51.45 C GPU die temperature: 51.69 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:28:00 2020 +1000) (5003.53ms elapsed) *** CPU Thermal level: 67 GPU Thermal level: 22 IO Thermal level: 22 Fan: 3503 rpm CPU die temperature: 51.65 C GPU die temperature: 51.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:28:05 2020 +1000) (5002.30ms elapsed) *** CPU Thermal level: 68 GPU Thermal level: 21 IO Thermal level: 21 Fan: 3500 rpm CPU die temperature: 52.40 C GPU die temperature: 52.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:28:10 2020 +1000) (5005.55ms elapsed) *** CPU Thermal level: 69 GPU Thermal level: 21 IO Thermal level: 21 Fan: 3482 rpm CPU die temperature: 52.45 C GPU die temperature: 51.62 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
[machine put to sleep]
*** Sampled system activity (Fri Nov  6 08:37:56 2020 +1000) (8494.42ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 0 rpm CPU die temperature: -127.00 C GPU die temperature: 36.12 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:01 2020 +1000) (5010.59ms elapsed) *** CPU Thermal level: 139 GPU Thermal level: 37 IO Thermal level: 0 Fan: 0 rpm CPU die temperature: 36.59 C GPU die temperature: 39.12 C CPU Plimit: 21.85 GPU Plimit: 11.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:06 2020 +1000) (5002.27ms elapsed) *** CPU Thermal level: 102 GPU Thermal level: 0 IO Thermal level: 0 Fan: 0 rpm CPU die temperature: 36.80 C GPU die temperature: 40.25 C CPU Plimit: 1.15 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:11 2020 +1000) (5004.88ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1108 rpm CPU die temperature: 37.42 C GPU die temperature: 40.75 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:16 2020 +1000) (5004.08ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2002 rpm CPU die temperature: 37.71 C GPU die temperature: 41.19 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:21 2020 +1000) (5004.22ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2002 rpm CPU die temperature: 40.90 C GPU die temperature: 41.62 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:26 2020 +1000) (5004.24ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2002 rpm CPU die temperature: 40.90 C GPU die temperature: 42.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:31 2020 +1000) (5005.88ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2000 rpm CPU die temperature: 42.08 C GPU die temperature: 42.62 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:36 2020 +1000) (5004.54ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1994 rpm CPU die temperature: 42.41 C GPU die temperature: 43.38 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:41 2020 +1000) (5005.49ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2004 rpm CPU die temperature: 42.59 C GPU die temperature: 43.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:46 2020 +1000) (5005.43ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2004 rpm CPU die temperature: 43.45 C GPU die temperature: 44.12 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:51 2020 +1000) (5004.69ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1994 rpm CPU die temperature: 43.55 C GPU die temperature: 44.19 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 08:38:56 2020 +1000) (5003.70ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1996 rpm CPU die temperature: 43.67 C GPU die temperature: 44.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:20 2020 +1000) (7062.97ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 0 rpm CPU die temperature: -127.00 C GPU die temperature: 32.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:25 2020 +1000) (5012.81ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 0 rpm CPU die temperature: 46.99 C GPU die temperature: 37.62 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:30 2020 +1000) (5001.55ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2012 rpm CPU die temperature: 50.02 C GPU die temperature: 42.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:35 2020 +1000) (5002.29ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1995 rpm CPU die temperature: 49.77 C GPU die temperature: 42.81 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:40 2020 +1000) (5003.18ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2010 rpm CPU die temperature: 49.15 C GPU die temperature: 43.69 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:45 2020 +1000) (5003.16ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1999 rpm CPU die temperature: 48.98 C GPU die temperature: 45.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:50 2020 +1000) (5002.97ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2000 rpm CPU die temperature: 49.20 C GPU die temperature: 46.19 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:07:55 2020 +1000) (5001.68ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2000 rpm CPU die temperature: 49.99 C GPU die temperature: 47.38 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:00 2020 +1000) (5003.87ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2000 rpm CPU die temperature: 49.90 C GPU die temperature: 47.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:05 2020 +1000) (5003.60ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 51.89 C GPU die temperature: 48.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:10 2020 +1000) (5003.10ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 51.74 C GPU die temperature: 48.88 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:15 2020 +1000) (5003.57ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2003 rpm CPU die temperature: 51.30 C GPU die temperature: 48.38 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:20 2020 +1000) (5003.56ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 51.17 C GPU die temperature: 48.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:25 2020 +1000) (5004.55ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2004 rpm CPU die temperature: 50.74 C GPU die temperature: 48.38 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:30 2020 +1000) (5003.58ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1996 rpm CPU die temperature: 50.54 C GPU die temperature: 48.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:35 2020 +1000) (5003.09ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1996 rpm CPU die temperature: 50.41 C GPU die temperature: 48.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:40 2020 +1000) (5004.64ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2003 rpm CPU die temperature: 55.09 C GPU die temperature: 49.94 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:45 2020 +1000) (5002.16ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1997 rpm CPU die temperature: 65.11 C GPU die temperature: 54.19 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:50 2020 +1000) (5002.50ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1997 rpm CPU die temperature: 65.80 C GPU die temperature: 57.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:08:55 2020 +1000) (5002.94ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1997 rpm CPU die temperature: 67.19 C GPU die temperature: 61.06 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:00 2020 +1000) (5002.48ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1999 rpm CPU die temperature: 69.30 C GPU die temperature: 62.44 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:05 2020 +1000) (5002.78ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 70.67 C GPU die temperature: 64.94 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:10 2020 +1000) (5001.97ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2000 rpm CPU die temperature: 72.59 C GPU die temperature: 66.94 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:15 2020 +1000) (5002.59ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 72.23 C GPU die temperature: 67.38 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:20 2020 +1000) (5003.38ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2002 rpm CPU die temperature: 72.20 C GPU die temperature: 68.81 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:25 2020 +1000) (5003.35ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2004 rpm CPU die temperature: 72.11 C GPU die temperature: 69.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:30 2020 +1000) (5002.05ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2004 rpm CPU die temperature: 74.95 C GPU die temperature: 70.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:35 2020 +1000) (5003.78ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2003 rpm CPU die temperature: 74.37 C GPU die temperature: 69.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:40 2020 +1000) (5003.31ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1997 rpm CPU die temperature: 73.85 C GPU die temperature: 68.94 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:45 2020 +1000) (5002.98ms elapsed) *** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1998 rpm CPU die temperature: 73.87 C GPU die temperature: 69.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:50 2020 +1000) (5004.02ms elapsed) *** CPU Thermal level: 4 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1998 rpm CPU die temperature: 73.93 C GPU die temperature: 69.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:09:55 2020 +1000) (5003.15ms elapsed) *** CPU Thermal level: 11 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2008 rpm CPU die temperature: 73.68 C GPU die temperature: 70.06 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:00 2020 +1000) (5003.61ms elapsed) *** CPU Thermal level: 17 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2000 rpm CPU die temperature: 73.51 C GPU die temperature: 70.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:05 2020 +1000) (5002.94ms elapsed) *** CPU Thermal level: 23 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 76.65 C GPU die temperature: 70.06 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:10 2020 +1000) (5002.42ms elapsed) *** CPU Thermal level: 29 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2001 rpm CPU die temperature: 79.76 C GPU die temperature: 70.88 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:15 2020 +1000) (5003.61ms elapsed) *** CPU Thermal level: 35 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1994 rpm CPU die temperature: 80.19 C GPU die temperature: 70.06 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:20 2020 +1000) (5004.77ms elapsed) *** CPU Thermal level: 40 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2005 rpm CPU die temperature: 78.58 C GPU die temperature: 68.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:25 2020 +1000) (5004.65ms elapsed) *** CPU Thermal level: 44 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1995 rpm CPU die temperature: 77.33 C GPU die temperature: 67.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:30 2020 +1000) (5004.56ms elapsed) *** CPU Thermal level: 47 GPU Thermal level: 0 IO Thermal level: 0 Fan: 2008 rpm CPU die temperature: 76.27 C GPU die temperature: 67.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:35 2020 +1000) (5003.22ms elapsed) *** CPU Thermal level: 51 GPU Thermal level: 1 IO Thermal level: 1 Fan: 2020 rpm CPU die temperature: 75.31 C GPU die temperature: 66.06 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:40 2020 +1000) (5002.43ms elapsed) *** CPU Thermal level: 52 GPU Thermal level: 2 IO Thermal level: 2 Fan: 2135 rpm CPU die temperature: 74.60 C GPU die temperature: 66.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:45 2020 +1000) (5003.36ms elapsed) *** CPU Thermal level: 54 GPU Thermal level: 4 IO Thermal level: 4 Fan: 2228 rpm CPU die temperature: 73.31 C GPU die temperature: 65.00 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:50 2020 +1000) (5004.67ms elapsed) *** CPU Thermal level: 55 GPU Thermal level: 5 IO Thermal level: 5 Fan: 2325 rpm CPU die temperature: 72.19 C GPU die temperature: 64.12 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:10:55 2020 +1000) (5003.39ms elapsed) *** CPU Thermal level: 56 GPU Thermal level: 6 IO Thermal level: 6 Fan: 2395 rpm CPU die temperature: 71.10 C GPU die temperature: 63.25 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:11:00 2020 +1000) (5003.39ms elapsed) *** CPU Thermal level: 57 GPU Thermal level: 7 IO Thermal level: 7 Fan: 2483 rpm CPU die temperature: 70.56 C GPU die temperature: 63.81 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:11:05 2020 +1000) (5004.68ms elapsed) *** CPU Thermal level: 58 GPU Thermal level: 8 IO Thermal level: 8 Fan: 2545 rpm CPU die temperature: 69.61 C GPU die temperature: 63.50 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:11:10 2020 +1000) (5003.87ms elapsed) *** CPU Thermal level: 59 GPU Thermal level: 9 IO Thermal level: 9 Fan: 2613 rpm CPU die temperature: 69.06 C GPU die temperature: 62.94 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:11:15 2020 +1000) (5003.25ms elapsed) *** CPU Thermal level: 60 GPU Thermal level: 10 IO Thermal level: 10 Fan: 2664 rpm CPU die temperature: 68.42 C GPU die temperature: 62.56 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 
*** Sampled system activity (Fri Nov  6 09:11:20 2020 +1000) (5004.15ms elapsed) *** CPU Thermal level: 60 GPU Thermal level: 10 IO Thermal level: 10 Fan: 2724 rpm CPU die temperature: 67.69 C GPU die temperature: 62.12 C CPU Plimit: 0.00 GPU Plimit: 0.00  Number of prochots: 0 

Solution 2:

To add to the other answer, which I think is correct, I can say that the "xcpm" part stands for "XNU CPU Power Management". XNU is Apple's operating system kernel.

So definitely the value has something do with the CPU power management - which basically means throttling.