[Armbian for OrangePi PC2, AllWinner H5]

I applied the workaround outlined by Mikaey and can confirm that throttling now works properly for me too.

Thanks Everyone

[Armbian for OrangePi PC2, AllWinner H5]

I totally missed it. Thanks.

And it looks like I don't have to reinstall a new image, which is awesome.

[Frequency throttling on OPi PC2?]

Beautiful. I'll try tonight, time permitting.

[Armbian for OrangePi PC2, AllWinner H5]

21 hours ago, bschwehn said:

Still, throttling is done only down to 1104 MHz (not an issue for me personally, for me this throttle is enough for mine to not go above 81C @100% CPU usage for 10 minutes).

 

Edit: Looks like I have it working now.

Looks promising!

 

My scenario doesn't look exactly like znoxx's. Mine idles at around 45-50 degrees. I have heatsinks attached and the case is the one sold on aliexpress with the removable top removed. It has bad airflow design but I'm not running it in a sealed box or anything.

 

It's set up to use SPI to boot from an ssd. The uboot version in SPI is from "/usr/lib/linux-u-boot-next-orangepipc2_5.75_arm64" (using instructions from here)

Hardware log is here: http://ix.io/1FUF

 

And here's a test with the fan disconnected (I stopped the test at 80 degrees because I'm not at home at the moment and I don't want it to become unresponsive.):

Spoiler

Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.

09:03:24:  240MHz  0.34   3%   1%   1%   0%   0%   0% 44.3°C  0/15
09:03:31: 1368MHz  0.31  38%   1%  37%   0%   0%   0% 56.5°C  0/15
09:03:37: 1368MHz  0.61 100%   0%  99%   0%   0%   0% 63.8°C  0/15
09:03:44: 1368MHz  1.20 100%   0%  99%   0%   0%   0% 64.6°C  0/15
09:03:51: 1104MHz  1.43  99%   0%  99%   0%   0%   0% 64.4°C  7/15
09:03:58: 1104MHz  1.90 100%   0%  99%   0%   0%   0% 65.3°C  7/15
09:04:05: 1104MHz  2.07 100%   0%  99%   0%   0%   0% 66.2°C  0/15
09:04:12: 1104MHz  2.22 100%   0%  99%   0%   0%   0% 67.2°C  7/15
09:04:19: 1104MHz  2.57 100%   1%  98%   0%   0%   0% 68.8°C  7/15
09:04:26: 1104MHz  2.68 100%   0%  99%   0%   0%   0% 68.3°C  7/15
09:04:33: 1104MHz  2.96 100%   0%  99%   0%   0%   0% 69.0°C  7/15
09:04:40: 1104MHz  3.04 100%   0%  99%   0%   0%   0% 70.6°C  7/15
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
09:04:47: 1104MHz  3.12 100%   0%  99%   0%   0%   0% 70.2°C  7/15
09:04:55: 1104MHz  3.33 100%   0%  99%   0%   0%   0% 72.7°C  7/15
09:05:02: 1104MHz  3.38 100%   0%  99%   0%   0%   0% 72.9°C  7/15
09:05:09: 1104MHz  3.63 100%   0%  99%   0%   0%   0% 74.6°C  7/15
09:05:16: 1104MHz  3.90 100%   0%  99%   0%   0%   0% 74.5°C  7/15
09:05:23: 1104MHz  3.90 100%   0%  99%   0%   0%   0% 74.7°C  7/15
09:05:29: 1104MHz  3.99  89%   0%  88%   0%   0%   0% 75.9°C  7/15
09:05:35: 1104MHz  3.99  94%   0%  93%   0%   0%   0% 75.4°C  7/15
09:05:42: 1104MHz  4.00 100%   0%  99%   0%   0%   0% 77.7°C  7/15
09:05:49: 1104MHz  4.07 100%   0%  99%   0%   0%   0% 78.2°C  7/15
09:05:56: 1104MHz  4.06 100%   0%  99%   0%   0%   0% 79.4°C  7/15

 

[Armbian for OrangePi PC2, AllWinner H5]

It didn't happen to me on the previous image I was running (ARMBIAN 5.32.170803 nightly Ubuntu 16.04.5 LTS 4.11.10-sun50iw2)

When I have some time, I'll put an older version on an sd card and prove it with data.

Can anyone else identify the version they noticed the change in behavior?

[Armbian for OrangePi PC2, AllWinner H5]

I'm having the same issue as well. I had to stick a small fan on the case for now.

Under load, the frequency never drops below 1104MHz.

I'm a bit of a noob but I've been trying to investigate (so let me know if I'm way off).

houldsg@orangepipc2:~$ uname -a
Linux orangepipc2 4.19.20-sunxi64 #5.75 SMP Fri Feb 8 10:29:25 CET 2019 aarch64 aarch64 aarch64 GNU/Linux
houldsg@orangepipc2:~$ cat /sys/devices/virtual/thermal/thermal_zone0/
available_policies  cdev0_weight        k_d                 k_pu                policy              subsystem/          trip_point_0_hyst   trip_point_1_hyst   type
cdev0/              emul_temp           k_i                 mode                power/              sustainable_power   trip_point_0_temp   trip_point_1_temp   uevent
cdev0_trip_point    integral_cutoff     k_po                offset              slope               temp                trip_point_0_type   trip_point_1_type
houldsg@orangepipc2:~$ cat /sys/devices/virtual/thermal/thermal_zone0/trip_point_0_temp
65000
houldsg@orangepipc2:~$ cat /sys/devices/virtual/thermal/thermal_zone0/trip_point_1_temp
90000

65 degrees is when the frequency drop to 1104. Does trip point 0 trigger a particular frequency (1104)? Should there be more trip points or is the throttling handled by another mechanism?