Temperature Widget

Guest

Not every system supports temperature mesuaring.

You can try to execute sysctl hw.acpi.thermal as shown by
http://doc.pfsense.org/index.php/What_Hardware_Monitoring_Is_Supported

If you get an error message, then FreeBSD is not able to fetch the values via acpi and the widget is not shown.

markuhde

Thanks for that link! I'm a total BSD newbie and didn't know I could get all the values like that. Here's the output on my system if it helps any. Again, the 26.8 is meaningless, and the 33 is the real CPU temp:

[2.1-DEVELOPMENT][admin@glacierfire.glaciercamp]/root(1): sysctl hw.acpi.thermal
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 0
hw.acpi.thermal.tz0.temperature: 26.8C
hw.acpi.thermal.tz0.active: 0
hw.acpi.thermal.tz0.passive_cooling: 1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 95.0C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 100.0C
hw.acpi.thermal.tz0._ACx: 0.0C -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz0._TC1: 1
hw.acpi.thermal.tz0._TC2: 5
hw.acpi.thermal.tz0._TSP: 10
hw.acpi.thermal.tz1.temperature: 33.0C
hw.acpi.thermal.tz1.active: -1
hw.acpi.thermal.tz1.passive_cooling: 0
hw.acpi.thermal.tz1.thermal_flags: 0
hw.acpi.thermal.tz1._PSV: -1
hw.acpi.thermal.tz1._HOT: -1
hw.acpi.thermal.tz1._CRT: 120.0C
hw.acpi.thermal.tz1._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz1._TC1: -1
hw.acpi.thermal.tz1._TC2: -1
hw.acpi.thermal.tz1._TSP: -1
[2.1-DEVELOPMENT][admin@glacierfire.glaciercamp]/root(2):

Guest

Hi, i was curious about the reason why cpu0 temperature mesuaring method wont run on some systems.

I came across
http://os4.org/wiki/freebsd_-_power-management.html
where this matter is discussed in more Detail.

Im pretty sure that we really should first try to query acpi.thermal before querying cpu0 and will adapt the code accordingly.
Further on, i think about doing a 'sysctl hw.acpi.thermal | grep 'tz.*temperature' before and just display any value there.
this would also remove the need for the tunable.


[2.1-DEVELOPMENT][admin@pfsense.localdomain]/root(4): grep 'tz.*temperature' acpi_thermal
hw.acpi.thermal.tz0.temperature: 26.8C
hw.acpi.thermal.tz1.temperature: 33.0C

markuhde

That sounds like it'd be a perfect solution, if I understand correctly, it would just show any temperatures that exist - bogus or not, correct?

stephenw10

dev.cpu0.temperature is created by coretemp(4).
My box has a Core CPU but the ACPI is broken so I have no thermal zones.

Steve

rcfa

According to intel docs, the Atom D510 has an on-die thermal sensor that can be read.
Looks like BSD or some BIOS issue prevents that from happening, because the

sysctl hw.acpi.thermal

returns zilch. :(
Hence, of course, no reported temperature. No wonder I can't see it ;)

Cino

@rcfa:

According to intel docs, the Atom D510 has an on-die thermal sensor that can be read.
Looks like BSD or some BIOS issue prevents that from happening, because the

sysctl hw.acpi.thermal

returns zilch. :(
Hence, of course, no reported temperature. No wonder I can't see it ;)

i'm using a atom d510 also, search the forum; there was a write up on how to install coretemp.ko on the system.

Guest

Hi,
afaik acpi was invented after those processor specific extensions were developed.
by now its available on most platforms and supports more sensors.
pfSense currently relies on dev.cpu.temperature and uses ACPI.tz0 as a fallback.
but only one sensorvalue of them is shown and this might be wrong.

For this reason i expanded the code in my tree to ask acpi for all the temp sensors.
This will give us more options in the GUI, including to select coretemp when we want.
Ill post a patch when its ready, so everyone can test it.

pfsense_ajax.png_thumb

stephenw10

For 2.0.1 (FreeBSD 8.1 base).
Copy coretemp.ko (32bit or 64bit) into /boot/modules
Add```
coretemp_load="YES"


I thought these were already in 2.1?  :-\ Hence referencing them in the widget.

Steve

stephenw10

If motherboard manufacturers bothered to code their ACPI tables correctly there wouldn't be a problem! >:(

Steve

Edit: response to a post that vanished. ::)

Guest

…repost...
Hehe, im running on virtualized hardware, so i need to ask my bank to buy a new system which supports the processor specific module ;))
Anyway, both will be supported bythe widget

m4f1050

Steve, are you referring to the FireBox X500?

Recently my FB X500 fan/blower died and I had to open my X500, put a cpu fan in place of the blower and leave the cover off while I wait for new replacements I ordered off of eBay (from HK of course…) and was wondering if there was a way of enabling such widget for a Celeron 1200Mhz

stephenw10

Nope I was talking about the XTM5.
You can use the output of mbmon to drive the dashboard widget. We had a long thread up on this for 2.0.X, I'm sure a lot of it would be relevent here.
http://forum.pfsense.org/index.php/topic,39595.0.html

And here was my specific post:
http://forum.pfsense.org/index.php/topic,39595.msg204643.html#msg204643

Steve

Guest

ah, informative - ill read that in a minute.

decided to just post what i got till now:
The code defaults to dev.cpu0 [as is] but is able to handle multiple acpi temperatures too if that module is used instead.


function get_temp() {
//  queries thermal sensors via sysctl. 
// returns array of sensors and their corresponding values

        $arr_parsed ="";
        $arr_temp = array();

        $filter_acpi = "tz[0-1].temperature";

     // escaping for possible inclusion in config.xml

        $oid_cpu = escapeshellcmd("dev.cpu0.temperature");
        $oid_acpi = escapeshellcmd("hw.acpi.thermal");

     // First, query for a processor specific sensor on the die
         exec("/sbin/sysctl '". $oid_cpu ."' | grep -E 'cpu.*temperature'" , $arr_cpu);
        // exec ("cat /root/temp_cpu | grep -E 'cpu.0.temperature'" , $arr_cpu);

         if (arr_cpu != "") {
              $arr_temp = array_merge($arr_temp,$arr_cpu);
          }

     // Alternative: query all acpi thermal zones.

           exec ("sysctl ". $oid_temp ." | grep -E '". $filter_acpi ."'" , $arr_acpi);
          // exec ("cat /root/temp_acpi | grep -E '".$filter_acpi."'" , $arr_acpi);

          if (arr_acpi != "") {
              $arr_temp = array_merge($arr_temp,$arr_acpi);
             }

           foreach (($arr_temp) as $value) {
             preg_match("/tz[0-9]|cpu/i", $value, $sens_id); // get sensor id 
             preg_match("/[0-9]{1,2}.[0-9]/", $value, $sens_val);   // get temperature value
             $arr_parsed[] =  array ($sens_id, $sens_val);
           }

           return($arr_parsed);
        }

is nearly finished now but well see. Anyway, its main purpose is to train me some pfSense gui customisation skills, so no problem for me.
Heres what its look like by now:

pfsense_ajax.png_thumb

rcfa

So where do we get the coretemp.ko that's compatible with pfSense 2.1 short of building a BSD 8.3 kernel?
Is this going to end up in the regular distribution at some point or will this remain in the everyone interested hacks it in on their own territory?

Guest

Oh, its written Source independent (see discussion above) to let the users choose what they want to use.
Edit:
Im currently banned from the highspeed World and have to use gprs till eoM. (:grm:)
ill sync wt current git and do the commit as soon as my highpriced provider is able to…

till then here are the other changed functions:


function updateTemp(obj_json) {
/*  modify the red / grey bar gifs according to the temperature
    ratio is one pixel per degree.
*/

        jQuery.map(obj_json,function(value,index){
        tempmeter = "#tempmeter" + value
        tempwidtha = "#tempwidtha" + value
        tempwidthb = "#tempwidthb" + value
        console.log(tempmeter);

        jQuery(tempwidthb).css('width',(100 - value[1]) + 'px');

        if(jQuery(tempmeter))
                jQuery(tempmeter).html(value[1] + '\u00B0' + 'C');
        if(jQuery(tempwidtha))
                jQuery(tempwidtha).css('width',value[1] + 'px');
        if(jQuery(tempwidthb))
        jQuery(tempwidthb).css('width',(100 - value[1]) + 'px');

});

and in system_information.widget.php


                        Temperature 

                                ![left bar](./themes/<?= $g['theme']; ?>/images/misc/bar_left.gif)![red bar](./themes/<?= $g['theme']; ?>/images/misc/bar_blue.gif)![gray bar](./themes/<?= $g['theme']; ?>/images/misc/bar_gray.gif)![right bar](./themes/<?= $g['theme']; ?>/images/misc/bar_right.gif)

stephenw10

I don't have 2.1 running on anything right now so I can't check but is it not included in the image? If not it just needs copying from a FreeBSD 8.3 install.

Steve

daplumber

Any chance of an option for Deg F ? Large numbers of people just never grokked the metric system sadly. :-\

Guest

Hi, when the code gets accepted in main, then it will be in the image.
sorry, for the first run it will stay with degree ;(

But this patch is just the first of two. A further one, which i plan to be more dynamic and more configurable in the gui will follow.
By now we have migration phase, where the view is generated by a mix of php and js output)
In that second patch i plan to seperate them and use php only for the backend and js for the ~~complete system_information.widget~~
Edit - no lets keep it easy, just for the temps :)

But for now - Ill note down a todo for an Option to switch output between Fahrenheit / Degrees ;)

If you need it faster, you can add code to check for the timezone after the patch has been accepted.

hanD !

rcfa

Is there any chance to convert this into a package that also installs the coretemp.ko and loads it, because without this won't work on my system, and it being a fanless design, I'd love to know if things go badly in terms of temperature for some reason…