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jouteur
2017-08-05, 03:20
Hi

I was reading somewhere here that when running LMS the CPU of the Pi3 is about 2% usage.
So why is Pi3 that hot when nothing is running (except that squeezelite and LMS are on on pcP) when touching the USB (nothing on it) and in the middle of the Pi3 (CPU)

how can you check, usage and Temp?

Thanks

quadronado
2017-08-05, 04:08
Hi
how can you check, usage and Temp?

For example you could SSH to your Pi and type:

vcgencmd measure_temp
and

top

jouteur
2017-08-05, 05:20
For example you could SSH to your Pi and type:

vcgencmd measure_temp
and

top

ok so the first one does not work

23334


and the second one, well it work but kind of keep on scrolling so difficult to have a look but when I keep the curseur at the beginning I see that

23335

quadronado
2017-08-05, 05:27
I Didn't know that you're using pcp. I don't know any commands that work with this system.

Gesendet von meinem Nexus 7 mit Tapatalk

jouteur
2017-08-05, 05:28
I Didn't know that you're using pcp. I don't know any commands that work with this system.

Gesendet von meinem Nexus 7 mit Tapatalk

right sorry thanks anyway

Jeff07971
2017-08-05, 05:51
Hi

I was reading somewhere here that when running LMS the CPU of the Pi3 is about 2% usage.
So why is Pi3 that hot when nothing is running (except that squeezelite and LMS are on on pcP) when touching the USB (nothing on it) and in the middle of the Pi3 (CPU)

how can you check, usage and Temp?

Thanks

top works fine on Pcp, try expanding your ssh window to fullscreen.

cat /sys/class/thermal/thermal_zone0/temp will give you cpu temperature.

or you could use the logging facility in the web interface.

It took me literally 10 seconds to google this

jouteur
2017-08-05, 06:00
top works fine on Pcp, try expanding your ssh window to fullscreen.

cat /sys/class/thermal/thermal_zone0/temp will give you cpu temperature.

or you could use the logging facility in the web interface.

It took me literally 10 seconds to google this

ok so you better than me at google cause I am looking for it for a bit and nothing

I tried your command and

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jouteur
2017-08-05, 06:02
ok so you better than me at google cause I am looking for it for a bit and nothing

I tried your command and

23336

sorry with a space after cat


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jouteur
2017-08-05, 06:05
where so on the web interface

Jeff07971
2017-08-05, 06:14
Main Page > Extras > Graph (In beta mode, may be in other modes)

jouteur
2017-08-05, 06:20
damn I never been there
ok I have 53 celcius
I have to say in the house it is arounf 30 or more (south of France)

so does yours get hot at the touch of it??

Jeff07971
2017-08-05, 06:47
damn I never been there
ok I have 53 celcius
I have to say in the house it is arounf 30 or more (south of France)

so does yours get hot at the touch of it??

Mine is running at 56C in a 24C ambient, so yes hot to the touch.

I'm running LMS, Jivelite, OpenVPN, Lirc and am actually playing music to Wifi at the moment

Theres lots of heatsinks on ebay if you want to keep the pi cooler https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1311.R11.TR12.TRC2.A0.H0.Xr aspberry+pi.TRS0&_nkw=raspberry+pi+3+heatsink&_sacat=0

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epoch1970
2017-08-05, 06:48
53C is quite normal. It idles more or less around 50C at room temperature.
AFAIK the board is good for about 60C ambient and the CPU over 100C.
Around 85C CPU temp, cores start reducing frequency. I suppose the machine halts at 100C or so.

You can put a 50cts euro coin on top of the CPU, that will help a little bit. And it's cheap ;)
Unless you run sox all the time for upsampling or something then you shouldn't need worry about temperature.

(The only heatsink that might make sense for a Pi are those that are part of the body of the enclosure. Otherwise they are too small to do much good, yet they are sort of bulky. From times to times I need to do heavy compilations or ciphered data transfers on a Pi 3, in this case my solution is to open the case and aim a domestic fan at it.)

slartibartfast
2017-08-05, 06:49
damn I never been there
ok I have 53 celcius
I have to say in the house it is arounf 30 or more (south of France)

so does yours get hot at the touch of it??Mine is 49.4 Celsius at a room temperature of around 24 so 53 sounds normal.

Sent from my SM-G900F using Tapatalk

jouteur
2017-08-05, 06:56
ok thanks for all that but look at my dodgy graph

23339

and I did refresh it

Jeff07971
2017-08-05, 06:58
ok thanks for all that but look at my dodgy graph

23339

and I did refresh it

You need to press start !

jouteur
2017-08-05, 07:01
man I am such a newbie ...thanks

drmatt
2017-08-05, 08:39
These are smartphone chips, totally designed to operate without dedicated cooling and will throttle themselves if it gets outside range. Unless you find it stuttering or slowing down, it's completely fine.


Transcoded from Matt's brain by Tapatalk

jouteur
2017-08-05, 08:52
ok thanks

drmatt
2017-08-05, 10:23
Here's what mine has looked like over the past year... No probs whatsoever.https://uploads.tapatalk-cdn.com/20170805/921423a2c3fb5438612603b4225d0397.jpg


Transcoded from Matt's brain by Tapatalk

Greg Erskine
2017-08-05, 23:36
I didn't think anyone used the CPU temperature graphing. :)

The [Start] button starts a small script that writes the CPU temperature to a log file every minute.

The [Refresh] button reads the temperature log file to generate a SVG graphic that is then displayed.

After a reboot everything is gone and the script will need to be restarted.

Without going through this process, the CPU temperature can be found by:

1. [Main Page] in [Beta] mode > [Diagnostics] > [Raspberry Pi]

Or,

2. If Squeezelite is running on pCP then [Main Page] in [Beta] mode > [Extras] > [Test]

will show the Diagnostics page of all pCP's running Squeezelite.

The initial "V" displayed on the graph is just the test data I used during development.

regards
Greg

jouteur
2017-08-06, 00:34
I didn't think anyone used the CPU temperature graphing. :)

The [Start] button starts a small script that writes the CPU temperature to a log file every minute.

The [Refresh] button reads the temperature log file to generate a SVG graphic that is then displayed.

After a reboot everything is gone and the script will need to be restarted.

Without going through this process, the CPU temperature can be found by:

1. [Main Page] in [Beta] mode > [Diagnostics] > [Raspberry Pi]

Or,

2. If Squeezelite is running on pCP then [Main Page] in [Beta] mode > [Extras] > [Test]

will show the Diagnostics page of all pCP's running Squeezelite.

The initial "V" displayed on the graph is just the test data I used during development.

regards
Greg

Cheers