FYI: A Pine64+ 2GB thermal result during a -j4 buildworld's libllvm build on head -r338341

Thu Aug 30 08:56:34 UTC 2018

[Adding figures for the Pine64+ 2GB being idle.]

On 2018-Aug-29, at 11:48 AM, Mark Millard <marklmi at yahoo.com> wrote:

> [The build got past doing llvm library related builds and so is doing
> less intense buildworld activity.]
> 
> On 2018-Aug-29, at 8:58 AM, Mark Millard <marklmi at yahoo.com> wrote:
> 
>> On 2018-Aug-29, at 6:12 AM, Emmanuel Vadot <manu at bidouilliste.com> wrote:
>> 
>>> On Wed, 29 Aug 2018 15:41:32 +0300
>>> Daniel Braniss <danny at cs.huji.ac.il> wrote:
>>> 
>>>> 
>>>> 
>>>>> On 29 Aug 2018, at 14:50, Emmanuel Vadot <manu at bidouilliste.com> wrote:
>>>>> 
>>>>> On Wed, 29 Aug 2018 04:07:28 -0700
>>>>> Mark Millard via freebsd-arm <freebsd-arm at freebsd.org <mailto:freebsd-arm at freebsd.org>> wrote:
>>>>> 
>>>>>> This head -r338341 based Pine64+ 2GB has a case, heatsinks,
>>>>>> and a fan.
>>>>>> 
>>>>>> # sysctl -a | grep therm
>>>>>> dev.aw_thermal.0.gpu2: 28C
>>>>>> dev.aw_thermal.0.gpu1: 29C
>>>>>> dev.aw_thermal.0.cpu: 31C
>>>>>> dev.aw_thermal.0.%parent: simplebus0
>>>>>> dev.aw_thermal.0.%pnpinfo: name=thermal_sensor at 1c25000 compat=allwinner,sun50i-a64-ths
>>>>>> dev.aw_thermal.0.%location: 
>>>>>> dev.aw_thermal.0.%driver: aw_thermal
>>>>>> dev.aw_thermal.0.%desc: Allwinner Thermal Sensor Controller
>>>>>> dev.aw_thermal.%parent: 
>>>>>> 
>>>>> 
>>>>> That seems very very low.
>>>> mine (Friendlyarm/allwinner/a64)is too cold to believe:
>>>> 
>>>> dev.aw_thermal.0.gpu2: 17C
>>>> dev.aw_thermal.0.gpu1: 17C
>>>> dev.aw_thermal.0.cpu: 15C
>>>> dev.aw_thermal.0.%parent: simplebus0
>>>> dev.aw_thermal.0.%pnpinfo: name=thermal_sensor at 1c25000 compat=allwinner,sun50i-a64-ths
>>>> dev.aw_thermal.0.%location: 
>>>> dev.aw_thermal.0.%driver: aw_thermal
>>>> dev.aw_thermal.0.%desc: Allwinner Thermal Sensor Controller
>>>> dev.aw_thermal.%parent:
>>> 
>>> Indeed it does. Do you have the big ass heatsink + fan on it ?
>>> https://www.friendlyarm.com/index.php?route=product/product&path=82&product_id=133
>>> 
>>> On my pine64 (Not LTS so A64), when it's idle the three sensors are
>>> ~22C. My IR thermometer reports a max temp of 33C when I 'scan' the
>>> chip.
>>> 
>>> Could you sysctl dev.aw_sid.0.ths-calib ?
>> 
>> The buildworld is doing libclang compiles now:
>> 
>> # sysctl dev.aw_sid.0.ths-calib dev.aw_thermal
>> dev.aw_sid.0.ths-calib: 820788078307
>> dev.aw_thermal.0.gpu2: 27C
>> dev.aw_thermal.0.gpu1: 28C
>> dev.aw_thermal.0.cpu: 30C
>> dev.aw_thermal.0.%parent: simplebus0
>> dev.aw_thermal.0.%pnpinfo: name=thermal_sensor at 1c25000 compat=allwinner,sun50i-a64-ths
>> dev.aw_thermal.0.%location: 
>> dev.aw_thermal.0.%driver: aw_thermal
>> dev.aw_thermal.0.%desc: Allwinner Thermal Sensor Controller
>> dev.aw_thermal.%parent: 
>> 
>>> I'll try to test on my NanoPi 64 with the heatsink.
>>> 
>>>> and it?s summer here.
>>>> 
>>>> danny
>>>> 
>>>>> 
>>>>> With 4 cpuburn-a53 process running I easily get to ~60C for cpu and
>>>>> ~55C for the gpus sensor.
>>>>> https://people.freebsd.org/~manu/cpuburn-a53 <https://people.freebsd.org/~manu/cpuburn-a53>
>> 
>> It will be a notable before the buildworld completes
>> (if it finishes normally).
>> 
>>>>>> This was during a -j4 buildworld's:
>>>>>> 
>>>>>> Building /usr/obj/cortexA53_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/clang/libllvm/CodeGen/MachineBranchProbabilityInfo.o
>>>>>> Building /usr/obj/cortexA53_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/clang/libllvm/CodeGen/MachineCSE.o
>>>>>> Building /usr/obj/cortexA53_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/clang/libllvm/CodeGen/MachineCombiner.o
>>>>>> Building /usr/obj/cortexA53_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/clang/libllvm/CodeGen/MachineCopyPropagation.o
>>>>>> 
>>>>>> No HDMI is plugged in. Ethernet is in use. The serial console
>>>>>> is in use. A USB powered hub with a USB drive is plugged in
>>>>>> to provide the swap partition. The UFS root file system is on
>>>>>> a microsdhc card in the microsd slot and it has TRIM enabled.
>>>>>> Nothing else other than the power cord is connected.
>>>>>> 
>>>>>> (The microsd card use with TRIM was requested by someone.
>>>>>> I normally use a root filesystem on a USB device because
>>>>>> booting from an e.MCC on an sdcard adapter that is put in
>>>>>> the sdcard slot does not work these days and I normally
>>>>>> avoid microsd cards for much beyond loading the kernel.)
>>> 
>> 
> 
> During a less intense build stage it shows the likes
> of:
> 
> # sysctl dev.aw_sid.0.ths-calib dev.aw_thermal
> dev.aw_sid.0.ths-calib: 820788078307
> dev.aw_thermal.0.gpu2: 24C
> dev.aw_thermal.0.gpu1: 24C
> dev.aw_thermal.0.cpu: 26C
> dev.aw_thermal.0.%parent: simplebus0
> dev.aw_thermal.0.%pnpinfo: name=thermal_sensor at 1c25000 compat=allwinner,sun50i-a64-ths
> dev.aw_thermal.0.%location: 
> dev.aw_thermal.0.%driver: aw_thermal
> dev.aw_thermal.0.%desc: Allwinner Thermal Sensor Controller
> dev.aw_thermal.%parent: 
> 
> It is summer and the room temperature is above
> 26 degC, more like 28.3 degC.
> 
> It does look like the figures are systematically low in
> my context.
> 
> It will be some time before I'll get a figure for idle.

The Pine64+ 2GB having been basically idle for hours (and
still being basically idle):

# sysctl dev.aw_sid.0.ths-calib dev.aw_thermal                                                                                                                                                    dev.aw_sid.0.ths-calib: 820788078307
dev.aw_thermal.0.gpu2: 19C
dev.aw_thermal.0.gpu1: 19C
dev.aw_thermal.0.cpu: 18C
dev.aw_thermal.0.%parent: simplebus0
dev.aw_thermal.0.%pnpinfo: name=thermal_sensor at 1c25000 compat=allwinner,sun50i-a64-ths
dev.aw_thermal.0.%location: 
dev.aw_thermal.0.%driver: aw_thermal
dev.aw_thermal.0.%desc: Allwinner Thermal Sensor Controller
dev.aw_thermal.%parent: 

So: Well below room temperature and similar to Daniel B.'s
results. It does suggest a delta of about 13 degC between
idle and the -j4 libllvm example cpu figures --and about 10
degC for the gpus.

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)