Different firmware, different behavior

[no_spam_for_me]

Now I've tried both, the
System Tuner Pro

https://play.google.com/store/apps/details?id=ccc71.pmw.pro

and the
Android Tuner

https://play.google.com/store/apps/details?id=ccc71.at

Also the 'Android Tuner' because first I found at 'System Tuner Pro' via "CPU-Manager" (CPU Mgr) the 'CPU Load' and 'CPU Frequencies' but NOT 'CPU Temperatures'...
But also at the 'Android Tuner' I can't find 'CPU Temperatures'...
BUT at rk3188... and that's why I like the
Cpu Temperature

https://play.google.com/store/apps/details?id=com.yanyan.cputemp

because it also works at my rk3188 device

BTW:
The 'System Tuner Pro' is nice, quick and easy to use, but once switches at 'Android Tuner' to "expert mode" I can't find any way back to the normal mode UI, and 'Android Tuner' have so much more tools (not really nice, quick and easy to use (but only a short look at the tools))...

Maybe till end of the week I get my Tronsmart and then I will compare 'System Tuner Pro'->"CPU-Manager"(CPU Mgr) and 'Cpu Temperature' at s802...

[mitchell4you]

I also have doubts.. about the soft/temp readings

Mine.. s89-h (finless 1.6)
Runs between 45 to 60 idle..
When i play around.. it hits 75c.. it throttle's to 1.2ghz
-i'm unable to get a higher then 75 reading

But when i start playing a vid (1080/dts)... the temp suddenly drops to 40
After a hour play.. still 40, but the box still feels hot

-perhaps sombody can use a hw-probe to check the readings

But,
I have not seen any sudden lag..

Well.. time will tell

Ps..
Nice work with the temp/charts/pictures.. and testing FW's

[Batfink32]

I can confirm this. I'm just back and fired up my modded (for coolness) box with 102k4 everything running smoothly and temp hovering around 40-60deg c. I then clean installed 104k4 and things went crazy. Temps rose to 70-80deg c and the CPU was throttling and the whole box slowed down to virtually unusable. Somethings very wrong in the latest kernel with the CPU.

Sent from my Nexus 5 using Tapatalk

[cerm78]

Honeslty I was fearing this from the beginning. My usually hot box magically got 20dec Centigrade less just by using the 104k4 ROM. I also noticed that temperature readings are on 5 degree steps. I don't see the staggering pattern but I noticed that it jumps wildly for example from 65 to 40.

All that doesn't make sense to me. My guess is that the chip is still running hot but the temperature reporting is cheating and showing incorrect temperatures.

That's why I'm still going to mod the box to get it cooler, effectively and actually cooler. I'll make measurements with any of the older ROMs before and after to compare readings that seem more accurate.

[zoelechat]

104k4 added this line in amlogic.board.rc

write /sys/devices/system/cpu/cpu0/cpufreq/scaling_dflt_freq 1608000

All the other ROMs before it did not have this.
This can be easily commented out and a boot.img that can be flashed made.

Let me know if you want to try it.

bob

If it's only meant to unlock maximum frequency, I'm not sure it's of any use, because it's never reached due to abnormally high and unstable temps causing CPU to systematically throttle.
Thanks anyway, you should keep it at hand to include in the big update I'll probably wait for

[JustMe]

104k4 added this line in amlogic.board.rc

write /sys/devices/system/cpu/cpu0/cpufreq/scaling_dflt_freq 1608000

All the other ROMs before it did not have this.
This can be easily commented out and a boot.img that can be flashed made.

Let me know if you want to try it.

bob

does this mean if i flash the square m8 with the cpu fixer at 696 this would give same results possibly?

JustMe

[Finless]

104k4 added this line in amlogic.board.rc

write /sys/devices/system/cpu/cpu0/cpufreq/scaling_dflt_freq 1608000

All the other ROMs before it did not have this.
This can be easily commented out and a boot.img that can be flashed made.

Let me know if you want to try it.

bob

[zoelechat]

Hi,

I did a monitoring comparison of CPU temperature/behavior depending on firmware (stocks 101k4 and 104k4), here are the results.
Both screenshots are taken after ~1hour XBMC streaming SD to have something "stable". I use Android Tuner Pro for monitoring.

104k4:

Nice "stairway" effect, temperature rises regularly until it reaches 80°C then it immediately fall around 50°C and the cycle starts again. Depending on temp, 2/3 cores are active between 696Mhz and 1200Mhz. Any advanced multitasking causes global lag, especially near the peaks. I noticed the same behavior in Finless 1.6 ROM.

101k4:

Temperature never reach 65°C, 4 cores are active @1992Mhz (Note that I soft-forced this maximum frequency with no problem, what I can't do in 104k4 which is again stuck at 1.6Ghz max). Not only temperature is stable, whole system is.

I didn't try f/w 102/103 but I wonder what they've done between (did Eric talked about better handling on CPU, huh?)... Can we consider that temp monitoring is reliable? What is sure is that CPU behavior depends on it and throttles like crazy for no good reason.
Also notice that we now have only 5°C steps where we had 1°C steps before.

Just a word about Antutu benchmark scores (I don't really care but it's mostly a good indicator). I use Antutu X because Antutu is definitely cheated and gives a result of 31700 whatever is firmware and context. Not credible at all.
101k4 gives a consistent score of about 23000 whereas 104k4 has random various results between 9000 and 19000. That tends to confirm the fickleness of latest f/w.

No need to say that being back to 101k4 I will keep using it until something really serious and well-tried come (from here I hope)