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Temps/pwm Survey
#1
Hello Guys,

I would like to know, to compare, what temps are you observing, when at full load, 'Ondemand' Governor and  little.big - 1.4 . 1.8 Ghz?

can you Run :

Code:
cat cpufreq-info|grep "current CPU"

cat /sys/class/thermal/thermal_zone{0,1}/temp

cat /sys/class/hwmon/hwmon0/pwm1

Is your heatsink trembling a lot, under full load?

Thanks in Advance, to all.

Regards
Reply
#2
(09-14-2018, 05:37 PM)tuxd3v Wrote: Hello Guys,

I would like to know, to compare, what temps are you observing, when at full load, 'Ondemand' Governor and  little.big - 1.4 . 1.8 Ghz?

can you Run :

Code:
cat cpufreq-info|grep "current CPU"

cat /sys/class/thermal/thermal_zone{0,1}/temp

cat /sys/class/hwmon/hwmon0/pwm1

Is your heatsink trembling a lot, under full load?

Thanks in Advance, to all.

Regards

Hello Guys,
Please Any feedback, is apreciatted

Thanks in Advance.
Reply
#3
Happy to oblige, but I do not have a fan, I am not running fanctl (and indeed do not have cpufreq installed)!

I do have 30mm Pine heatsink directly mounted on SoC with Arctic thermal paste, and SBC vertically mounted.

After 10 minutes sbc-bench -T 70 in 1 terminal I get

Code:
$ cat cpufreq-info|grep "current CPU"
cat: cpufreq-info: No such file or directory
[email protected]:~$ cat /sys/class/thermal/thermal_zone{0,1}/temp
68333
58888
[email protected]:~$ cat /sys/class/hwmon/hwmon0/pwm1
0

I guess when you say "heatsink trembling" in fact you are interested in how much, and how fast the fan is running? (This is for any other respondents - I do not have a fan!)
ROCKPro64 v2.1 2GB, SM961 128GB NVMe for rootfs, HDMI video & sound, Bluetooth keyboard & mouse
Bionic minimal, Openbox desktop for general purpose daily PC.
Reply
#4
Thumbs Up 
(09-17-2018, 03:06 AM)dukla2000 Wrote: Happy to oblige, but I do not have a fan, I am not running fanctl (and indeed do not have cpufreq installed)!

I do have 30mm Pine heatsink directly mounted on SoC with Arctic thermal paste, and SBC vertically mounted.

After 10 minutes sbc-bench -T 70 in 1 terminal I get

Code:
$ cat cpufreq-info|grep "current CPU"
cat: cpufreq-info: No such file or directory
[email protected]:~$ cat /sys/class/thermal/thermal_zone{0,1}/temp
68333
58888
[email protected]:~$ cat /sys/class/hwmon/hwmon0/pwm1
0

I guess when you say "heatsink trembling" in fact you are interested in how much, and how fast the fan is running? (This is for any other respondents - I do not have a fan!)

Hello dukla2000,
Thanks a lot for your Feed-back.[Image: thumbsup.png]
I also have a 30mm tall heatsink, and it works ok, if I don't push it up constantly.

Yes the ideia is checking with people that is using a fan,
their temps, vibration, etc.

Yes its for trying to adjust fanctl,
Mabe to  max pwm at 58-59C(I tried with max at 55C, but it was 2 times worst than flying in a jet air plain Smile  ), so 58-59, is more noise acceptable, in this case the temps should be arroud 53-54, at full throtle..depending on what fan you have etc..
Some people use things that they have around getting dust, and so its difficult to fit all, but a common ground could been found.

Thanks a lot,
Reply
#5
There are in fact more dependent on the ambient temperature, whether there is a movement of air in the environment,
room with air conditioning is one thing, and another thing without him,
and where the board is placed, in the casing or open, how the casing is vented.
from me will definitely be a response when I get board,
it will be in the metal casing with a pulling fan 80x80, a 30mm heatsink with fan 40x40.
and I am inclined to achieve a temperature below +50°C, up to the application of the Peltier element,
with the use of a the Peltier element less than +30°C, at maximum load MCU, here might need to use GPIO for DS18B20 and additional PWM.
I think it will be interesting for your projects Smile
Reply
#6
(09-17-2018, 07:32 PM)romtorwator Wrote: There are in fact more dependent on the ambient temperature, whether there is a movement of air in the environment,
room with air conditioning is one thing, and another thing without him,
and where the board is placed, in the casing or open, how the casing is vented.
from me will definitely be a response when I get board,
it will be in the metal casing with a pulling fan 80x80, a 30mm heatsink with fan 40x40.
and I am inclined to achieve a temperature below +50°C, up to the application of the Peltier element,
with the use of a the Peltier element less than +30°C, at maximum load MCU, here might need to use GPIO for DS18B20 and additional PWM.
I think it will be interesting for your projects Smile

It could be a nice proposal indeed.
The problem of peltier devices, is that they are Current driven.

I was looking at some on the web, and there are some with less current consumption, like 800mw.
But needs to be done carefully, because of the current driven, but I think it could be feasible, for some 10C less.
Reply
#7
it seems that no additional reinvention is required,
in the case, chassis fan is not connected yet, heatsink 30mm with fan, in the room there is no air conditioning, immobile air, air temperature +25С
My board in SOHO NAS server mode, Samba/NFS/Apache/MySQL/Transmission/OpenVPN,
for a personal internet site, torrent download, Veeam backup of three computers, local network video playback, Remote access to the local network.
the second day I observe a temperature of +39...+ 42C
parts of logs:
Code:
2018-09-20,00:06:45,408,408,408,408,816,816,39,190
2018-09-20,00:06:46,408,408,408,408,816,816,40,190
2018-09-20,00:06:47,408,408,408,408,816,816,40,115
2018-09-20,00:06:48,408,408,408,408,408,408,40,115
2018-09-20,00:06:49,408,408,408,408,816,816,39,115
2018-09-20,00:06:50,408,408,408,408,816,816,39,115
2018-09-20,00:06:51,408,408,408,408,816,816,40,115

2018-09-20,00:07:43,408,408,408,408,816,816,39,0
2018-09-20,00:07:44,408,408,408,408,408,408,39,0
2018-09-20,00:07:45,408,408,408,408,816,816,39,0
2018-09-20,00:07:46,408,408,408,408,816,816,39,0
2018-09-20,00:07:47,408,408,408,408,816,816,39,0
2018-09-20,00:07:48,408,408,408,408,816,816,40,0

2018-09-20,00:08:53,408,408,408,408,408,408,40,0
2018-09-20,00:08:54,408,408,408,408,600,600,39,0
2018-09-20,00:08:55,408,408,408,408,408,408,39,190
2018-09-20,00:08:56,408,408,408,408,600,600,39,190
2018-09-20,00:08:57,408,408,408,408,600,600,39,115
2018-09-20,00:08:58,408,408,408,408,600,600,39,115
2018-09-20,00:08:59,408,408,408,408,408,816,39,115
2018-09-20,00:09:00,408,408,408,408,816,816,39,115
2018-09-20,00:09:01,408,408,408,408,816,816,39,0
2018-09-20,00:09:02,408,408,408,408,816,816,39,0
2018-09-20,00:09:03,408,408,408,408,816,816,39,0

2018-09-20,11:46:42,408,408,408,408,816,816,39,38,0
2018-09-20,11:46:43,600,600,600,408,816,816,39,38,0
2018-09-20,11:46:44,408,408,408,408,816,816,39,38,0
2018-09-20,11:46:45,1416,1416,1416,1416,816,816,39,38,0
2018-09-20,11:46:46,1416,1416,1416,1416,816,816,39,38,190
2018-09-20,11:46:47,1416,1416,1416,1416,816,816,40,38,115
2018-09-20,11:46:48,1416,1416,1416,1416,816,816,39,38,115
2018-09-20,11:46:49,408,408,408,408,816,816,39,38,115
2018-09-20,11:46:50,1416,1416,1416,1416,600,600,39,38,115
2018-09-20,11:46:51,408,408,408,408,816,816,39,38,115
2018-09-20,11:46:52,408,408,408,408,816,816,39,38,0
2018-09-20,11:46:53,408,408,408,408,600,600,39,38,0
2018-09-20,11:46:55,408,408,408,408,816,816,39,38,0

2018-09-21,09:46:32,408,408,408,408,816,816,41,40,120
2018-09-21,09:46:34,1416,1416,1416,1416,816,816,41,40,125
2018-09-21,09:46:35,1416,1416,1416,1416,816,816,41,40,125
2018-09-21,09:46:36,1416,1416,1416,1416,816,816,41,40,125
2018-09-21,09:46:37,408,408,408,408,600,600,40,40,125
2018-09-21,09:46:38,600,600,600,600,816,816,40,40,125
2018-09-21,09:46:39,1416,1416,1416,1416,816,816,41,40,120
2018-09-21,09:46:40,408,408,408,408,816,816,41,40,120
2018-09-21,09:46:41,1416,1416,1416,1416,816,816,40,40,120
2018-09-21,09:46:42,1416,1416,1416,1416,816,816,41,40,120
2018-09-21,09:46:43,408,408,408,408,600,600,41,40,120
2018-09-21,09:46:44,408,408,408,408,816,816,41,40,125

2018-09-22,21:18:24,600,600,600,600,816,816,42,42,140
2018-09-22,21:18:25,1416,1416,1416,1416,816,816,42,41,140
2018-09-22,21:18:26,1416,1416,1416,1416,600,600,42,42,140
2018-09-22,21:18:27,600,600,600,600,816,816,43,42,140
2018-09-22,21:18:28,1416,1416,1416,1416,816,816,42,41,140
2018-09-22,21:18:29,1416,1416,1416,1416,408,408,42,41,140
2018-09-22,21:18:30,1416,1416,1416,1416,816,816,42,42,140
2018-09-22,21:18:31,600,600,408,408,816,816,42,42,140
2018-09-22,21:18:32,600,600,600,600,816,816,42,41,140
2018-09-22,21:18:33,1416,1416,1416,1416,816,816,42,42,140
2018-09-22,21:18:34,1416,1416,1416,1416,408,408,42,41,140
2018-09-22,21:18:35,1416,1416,1416,1416,816,816,42,42,140
2018-09-22,21:18:36,1416,1416,1416,1416,408,408,42,42,140
2018-09-23,06:24:31,408,408,408,408,816,816,42,41,135
2018-09-23,06:24:32,408,408,408,408,600,600,41,41,135
2018-09-23,06:24:33,408,408,408,408,816,816,42,41,135
2018-09-23,06:24:34,408,408,408,408,816,816,42,41,135
2018-09-23,06:24:35,408,408,408,408,816,816,42,41,135


Attached Files Thumbnail(s)
                   
Reply
#8
(09-22-2018, 08:04 PM)romtorwator Wrote: it seems that no additional reinvention is required,
in the case, chassis fan is not connected yet, heatsink 30mm with fan, in the room there is no air conditioning, immobile air, air temperature +25С
My board in SOHO NAS server mode, Samba/NFS/Apache/MySQL/Transmission/OpenVPN,
for a personal internet site, torrent download, Veeam backup of three computers, local network video playback, Remote access to the local network.
the second day I observe a temperature of +39...+ 42C
parts of logs:
Code:
2018-09-20,00:06:45,408,408,408,408,816,816,39,190
2018-09-20,00:06:46,408,408,408,408,816,816,40,190
2018-09-20,00:06:47,408,408,408,408,816,816,40,115
2018-09-20,00:06:48,408,408,408,408,408,408,40,115
2018-09-20,00:06:49,408,408,408,408,816,816,39,115
2018-09-20,00:06:50,408,408,408,408,816,816,39,115
2018-09-20,00:06:51,408,408,408,408,816,816,40,115

2018-09-20,00:07:43,408,408,408,408,816,816,39,0
2018-09-20,00:07:44,408,408,408,408,408,408,39,0
2018-09-20,00:07:45,408,408,408,408,816,816,39,0
2018-09-20,00:07:46,408,408,408,408,816,816,39,0
2018-09-20,00:07:47,408,408,408,408,816,816,39,0
2018-09-20,00:07:48,408,408,408,408,816,816,40,0

2018-09-20,00:08:53,408,408,408,408,408,408,40,0
2018-09-20,00:08:54,408,408,408,408,600,600,39,0
2018-09-20,00:08:55,408,408,408,408,408,408,39,190
2018-09-20,00:08:56,408,408,408,408,600,600,39,190
2018-09-20,00:08:57,408,408,408,408,600,600,39,115
2018-09-20,00:08:58,408,408,408,408,600,600,39,115
2018-09-20,00:08:59,408,408,408,408,408,816,39,115
2018-09-20,00:09:00,408,408,408,408,816,816,39,115
2018-09-20,00:09:01,408,408,408,408,816,816,39,0
2018-09-20,00:09:02,408,408,408,408,816,816,39,0
2018-09-20,00:09:03,408,408,408,408,816,816,39,0

2018-09-20,11:46:42,408,408,408,408,816,816,39,38,0
2018-09-20,11:46:43,600,600,600,408,816,816,39,38,0
2018-09-20,11:46:44,408,408,408,408,816,816,39,38,0
2018-09-20,11:46:45,1416,1416,1416,1416,816,816,39,38,0
2018-09-20,11:46:46,1416,1416,1416,1416,816,816,39,38,190
2018-09-20,11:46:47,1416,1416,1416,1416,816,816,40,38,115
2018-09-20,11:46:48,1416,1416,1416,1416,816,816,39,38,115
2018-09-20,11:46:49,408,408,408,408,816,816,39,38,115
2018-09-20,11:46:50,1416,1416,1416,1416,600,600,39,38,115
2018-09-20,11:46:51,408,408,408,408,816,816,39,38,115
2018-09-20,11:46:52,408,408,408,408,816,816,39,38,0
2018-09-20,11:46:53,408,408,408,408,600,600,39,38,0
2018-09-20,11:46:55,408,408,408,408,816,816,39,38,0

2018-09-21,09:46:32,408,408,408,408,816,816,41,40,120
2018-09-21,09:46:34,1416,1416,1416,1416,816,816,41,40,125
2018-09-21,09:46:35,1416,1416,1416,1416,816,816,41,40,125
2018-09-21,09:46:36,1416,1416,1416,1416,816,816,41,40,125
2018-09-21,09:46:37,408,408,408,408,600,600,40,40,125
2018-09-21,09:46:38,600,600,600,600,816,816,40,40,125
2018-09-21,09:46:39,1416,1416,1416,1416,816,816,41,40,120
2018-09-21,09:46:40,408,408,408,408,816,816,41,40,120
2018-09-21,09:46:41,1416,1416,1416,1416,816,816,40,40,120
2018-09-21,09:46:42,1416,1416,1416,1416,816,816,41,40,120
2018-09-21,09:46:43,408,408,408,408,600,600,41,40,120
2018-09-21,09:46:44,408,408,408,408,816,816,41,40,125

2018-09-22,21:18:24,600,600,600,600,816,816,42,42,140
2018-09-22,21:18:25,1416,1416,1416,1416,816,816,42,41,140
2018-09-22,21:18:26,1416,1416,1416,1416,600,600,42,42,140
2018-09-22,21:18:27,600,600,600,600,816,816,43,42,140
2018-09-22,21:18:28,1416,1416,1416,1416,816,816,42,41,140
2018-09-22,21:18:29,1416,1416,1416,1416,408,408,42,41,140
2018-09-22,21:18:30,1416,1416,1416,1416,816,816,42,42,140
2018-09-22,21:18:31,600,600,408,408,816,816,42,42,140
2018-09-22,21:18:32,600,600,600,600,816,816,42,41,140
2018-09-22,21:18:33,1416,1416,1416,1416,816,816,42,42,140
2018-09-22,21:18:34,1416,1416,1416,1416,408,408,42,41,140
2018-09-22,21:18:35,1416,1416,1416,1416,816,816,42,42,140
2018-09-22,21:18:36,1416,1416,1416,1416,408,408,42,42,140
2018-09-23,06:24:31,408,408,408,408,816,816,42,41,135
2018-09-23,06:24:32,408,408,408,408,600,600,41,41,135
2018-09-23,06:24:33,408,408,408,408,816,816,42,41,135
2018-09-23,06:24:34,408,408,408,408,816,816,42,41,135
2018-09-23,06:24:35,408,408,408,408,816,816,42,41,135

Nice Setup  Shy
Yes the need for a Fan only happens when you push the processor for some time.
In your setup, maybe the hard task would be the backup of the 3 machines..
But it would be nothing like running full load during hours, I think.
Reply
#9
During the backup it behaves like this:

Code:
2018-09-24,08:13:05,1416,1416,1416,1416,816,816,43,42,152
2018-09-24,08:13:06,1416,1416,1416,1416,816,816,43,42,152
2018-09-24,08:13:07,1416,1416,1416,1416,816,816,43,43,152
2018-09-24,08:13:08,1416,1416,1416,1416,1800,1800,47,43,152
2018-09-24,08:13:09,1416,1416,1416,1416,1416,1416,45,43,152
2018-09-24,08:13:10,1416,1416,1416,1416,1800,1800,46,42,152
2018-09-24,08:13:12,1416,1416,1416,1416,816,816,44,43,152
2018-09-24,08:13:13,1416,1416,1416,1416,1800,1800,48,43,152
2018-09-24,08:13:14,1416,1416,1416,1416,1200,1200,44,43,152
2018-09-24,08:13:15,1416,1416,1416,1416,1008,1008,45,43,185
2018-09-24,08:13:16,1416,1416,1416,1416,816,816,44,43,185
2018-09-24,08:13:17,1416,1416,1416,1416,816,816,44,43,185
2018-09-24,08:13:18,1416,1416,1416,1416,1008,1008,44,43,185
2018-09-24,08:13:19,1416,1416,1416,1416,1008,1008,45,43,164
2018-09-24,08:13:20,1416,1416,1416,1416,816,1008,45,43,164
2018-09-24,08:13:21,1416,1416,1416,1416,1008,1008,44,43,164
2018-09-24,08:13:22,1416,1416,1416,1416,1008,1008,44,43,164
2018-09-24,08:13:23,1416,1416,1416,1416,1608,1608,46,43,164
2018-09-24,08:13:24,1416,1416,1416,1416,816,816,45,43,170
2018-09-24,08:13:25,1416,1416,1416,1416,1416,1416,45,43,170
2018-09-24,08:13:26,1416,1416,1416,1416,600,600,45,43,170
2018-09-24,08:13:27,1416,1416,1416,1416,816,816,44,42,170
2018-09-24,08:13:28,1416,1416,1416,1416,816,816,44,43,170
2018-09-24,08:13:29,1416,1416,1416,1416,1608,1608,46,43,164
2018-09-24,08:13:30,1416,1416,1416,1416,816,816,45,43,164
2018-09-24,08:13:31,1416,1416,1416,1416,1416,1416,46,43,164
2018-09-24,08:13:32,1416,1416,1416,1416,600,816,45,43,164
2018-09-24,08:13:33,1416,1416,1416,1416,1008,1008,44,43,164
2018-09-24,08:13:34,1416,1416,1416,1416,1008,1008,45,43,164
2018-09-24,08:13:35,1416,1416,1416,1416,1008,1008,45,43,164
2018-09-24,08:13:36,1416,1416,1416,1416,1008,1008,44,43,164
2018-09-24,08:13:37,1416,1416,1416,1416,1008,1008,45,43,164
2018-09-24,08:13:38,1416,1416,1416,1416,1008,1008,45,43,164
2018-09-24,08:13:39,1416,1416,1416,1416,816,816,44,43,164
2018-09-24,08:13:40,1416,1416,1416,1416,816,816,43,43,164
2018-09-24,08:13:41,1416,1416,1416,1416,816,816,43,43,164
2018-09-24,08:13:42,1416,1416,1416,1416,816,816,43,43,164

These are the maximum values that I have seen, at the moment, the Casing temperature reaches +37С
By the way, I did not use a thermal conductive silicone pad, from the heatsink kit,
between the microcontroller and the heatsink only thermal grease.
I plan to install a thermostat on the basis of DS1821 (in thermostat mode),
connecting to it the exhaust fan of the casing,
the hysteresis of which will be 5 degrees Celsius, shutdown +32C, switching-on of +37C,
which at the physical level will protect the heatsink overheating,
in cases of failure of the fan on the heatsink.


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