So I saw a thread on Shield forums about how their device only has two cores showing up in Kodi. I saw this myself then sideloaded the CPUZ app and it tells me the first two cores are working and the last two cores are stopped.
Can you guys check your devices? You can bring up the Codec info screen in Kodi when playing something and it will show you how many cores it is using. Sideload CPUZ and it will show more info.
Thanks.
afaik it'll load balance, it will use all cores when it's needed. so on a highly demanding game etc. don't worry.
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So, as the title says, there may be a way to prevent your device from freezing due to unlocked bootloader. Here are 2 things I've discovered:
1) Most of you may already know of this: If you switch off cores 3 and 4 of your CPU in the app Kernel Adiutor you can prevent the freezing issue. However, you lose half your CPU power, and if you leave it that way for long you can't switch those cores back on for some reason, and you'll have to reboot your device(else your battery will drain out if left as is, from my experience), so it's quite a cumbersome task.
2) If you play games that require little more than average ram and CPU power(even games like hill climb) your phone won't freeze while playing. I play this game called Vainglory, and after having played for over 10 hours, I can say for sure it didn't freeze even once.
From these two things I can draw up a vague conclusion that the phone freezes when the CPU isn't doing anything much. When we switch off 2 cores, the workload increases on the CPU, this making it busy(which also leads to quick drain). Same goes for gaming.
So how do we work on that? I'm not sure. Anyone have any ideas? Maybe someone can create a kernel compatible with RR and other cm13 roms which has what's needed. Or maybe try a different CPU governor? Well, just wanted to put it out there.
I tried all what you're trying to do and I understand that. The thing is that it will freeze no matter what.
Of course you can try but don't expect too much.
Goodluck!
I am facing this same issue suddenly
there is no connection between ifwi and cpu core
paktepu said:
there is no connection between ifwi and cpu core
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Who said there is?
Another thing I found:
When you use kernel adiutor to switch off cores 3 and 4, and use your phone normally, the instant when your phone would have frozen if it weren't for the app, is when your phone gets much slower suddenly. At this point, you'll no longer be able to switch those cores back on, and only a reboot will resolve that.
I've mentioned this so-called "method" of preventing Z5 freeze long ago. I can confirm that switching off cores 3 and 4 somehow halts the phone's urge to freeze. I could've lived with limiting my "power use" as I'm not really a fan of entrusting your phone with large tasks. However, what turned me off was that disabling either one of cores 3 and 4 also disables the camera somehow (Ring a bell, Z5 users who lose their cameras whenever their bootloaders are unlocked?)
No one really replied with certainty back then and up to now, that thread is still collecting cobwebs.
Question: is battery drain a characteristic of disabling cores? I disabled only core 4. Cores 1, 2, and 3 are up and my ROM (Lineage 14.1) runs perfectly without freezing.
Hi everybody, I'm using an XT1642 with RR 7.1.1 but had the same problem with stock nougat too (I thought RR would help but it didn't): Serious lagging in Angry Birds Pop. GameBench shows fps usually around 20, while on my old Xperia Z1 Compact it's almost always 60...
Does anybody have an idea what might be the problem?
It's possibly an issue with the kernel not online-ing cores. Even so, it shouldn't lag that far behind the Z1 (even though the Z1 does have a faster CPU).
I recommend installing an app called "Kernel Adiutor", and manually change the minimum/maximum cores of the "big" cluster of the CPU, or even offline the big cluster and see if Angry Birds scales better on 4 cores.
Thank you! Setting "minimum cpus big" to 3 did solve the problem. I assume that shouldn't be kept this way because of the battery. Is there a way to have the setting changed to 3 when I open the app and back to 2 when I'm not playing? Like in getools?
berliner77 said:
Thank you! Setting "minimum cpus big" to 3 did solve the problem. I assume that shouldn't be kept this way because of the battery. Is there a way to have the setting changed to 3 when I open the app and back to 2 when I'm not playing? Like in getools?
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There are a couple routes to this. There should be 2 variables within the Kernel Adiutor (I use EX kernel manager which is definitely worth a buy, the dev also develops the ElementalX kernels) that are called "Up Threshold" and "Down Threshold" for the big cluster. Essentially, "Up threshold" marks the CPU load at which the CPU begins to online the big cluster cores, while "Down Threshold" is the CPU load at which the CPU begins to offline big cluster cores.
I set the minimum to 0, and my up/down load levels are 60 and 45, respectively (I'm a super light user, just some reddit and clash royale), and my maximum is 4. However, lowering up and down load levels may help as the load at which the CPU onlines is much lower.
However, this may not work regardless. Some apps scale weird on octa-core CPUs; I know that Chrome was very, very janky on early big.LITTLE designs.
With EX Kernel manager flar built in a "performance" and "battery saving mode" which can be toggled via a desktop widget. I find it super useful if I'm using my G4 for VR. Essentially, you can set the max frequency and CPU governor per each mode. It is a paid app however, but the dev is great (he has a kernel out for the G4 as well) and well worth the price.
Thanks again, I will loot into it!
Hi all,
I noticed that the Nexus6P turns off it's big cores when I start a graphics benchmark (It happens with other apps too but the big cores going offline is almost immediate when graphics apps are run).
One reason could be thermal governor trying to reduce power consumption when power hungry workloads are run.
So I logged the temperatures (there were 32 different ones). I logged them all along with a timestamp and how many cores were online.
I don't see any temperature numbers that are triggering this change. I can link my log file to anyone wants to take a look. I could not find a way to insert attachments here.
Can anyone shed some light on why this is happening?
Nexus 6P running Android 7.1
benchmark shown is passmark simple 3D test.
Need help... Intel Joying CPU Usage Spikes & Frequent Audio Dropouts on all apps...
It's especially prominent in Pandora. But also on Poweramp and Pulsar. Doesn't happen on iHeartRadio, however; what's happening is every 30 - 45 seconds I get a pause in the audio.. note when it pauses I notice the song time is still continuing so the actual song doesn't appear to be stopping, but I just lose audio. It lasts between 2 and 5 seconds. I tried disabling the stock music player but this seems not to have helped. I also disabled Bluetooth and it still didn't help. I do have a USB harddrive with several gigs of music but nothing is scanning from what I can tell. What could be causing this issue?
Edit: After some additional testing using the Trickster MOD, I am finding that the HU is running at 1040Mhz 99% of the time in a sample of 2 hours, however; when I lose audio I am noticing my CPU usage is SPIKING from 5 - 10% to 90% and higher for no apparent reason, then it drops back down and I regain audio... Temperatures remain between 40 and 45*C ... Any idea whats going on?
Looks like your HU is experiencing overheat problem when CPU has to throttle down.
I installed a heat sink and cooling fan on it already though and it solved my initial problem where my HU would lose GPS. How can I tell for sure because my new fans are definitely running yet my audio keeps skipping
Have you installed any CPU temperature measuring utility? Might give a clue.
ste2002 said:
Have you installed any CPU temperature measuring utility? Might give a clue.
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what app would you recommend?
Also, Google Play downloads are EXTREMELY slow and take forever to install.
Need4Camaro said:
what app would you recommend?
Also, Google Play downloads are EXTREMELY slow and take forever to install.
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Click to collapse
I like CPU Temp Pure https://play.google.com/store/apps/details?id=com.yanyan.cputemppure - it was once free, now it is not. I like it because it is capable of outputting temp in the upper screen bar persistently (if this setting is enabled).
As to slow install, it can also mean CPU thottled down and if it is Intel, they say the app has to be compiled for x86 during install which takes additional time (I only repeat someone here, may be wrong).
ste2002 said:
I like CPU Temp Pure https://play.google.com/store/apps/details?id=com.yanyan.cputemppure - it was once free, now it is not. I like it because it is capable of outputting temp in the upper screen bar persistently (if this setting is enabled).
As to slow install, it can also mean CPU thottled down and if it is Intel, they say the app has to be compiled for x86 during install which takes additional time (I only repeat someone here, may be wrong).
Click to expand...
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I'll try that. If it comes to a point where I may need a new HU, what would you recommend? Not sure if I really like Joying, especially because their overheating issues.
As to me, I am not an expert at all: Joying is my first (and current) experience in Android HU. Keeping an eye on a HU market, I can not see anything that I would heavily wish to substitute Joying, which is just quite acceptable for my everyday usage.
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You may want to search for CadillacMike posts - AFAIR he recently owned at least 3 different Chinese brand Android HUs, Joying included.
ste2002 said:
As to me, I am not an expert at all: Joying is my first (and current) experience in Android HU. Keeping an eye on a HU market, I can not see anything that I would heavily wish to substitute Joying, which is just quite acceptable for my everyday usage.
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You may want to search for CadillacMike posts - AFAIR he recently owned at least 3 different Chinese brand Android HUs, Joying included.
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Okay, I checked the CPU temp and its hovering between 37 and 41*C with poweramp running but poweramp is still skipping.
I notice my DEFAULT music app is still trying to locate music, is there any way to disable the default music app? I am believing it may be causing the problem.
Your temps are just ideal, very low for throttling, I believe. Mine are often around 80 - I still do not have any additional cooling. But I mostly tune to FM radio.
ste2002 said:
Your temps are just ideal, very low for throttling, I believe. Mine are often around 80 - I still do not have any additional cooling. But I mostly tune to FM radio.
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Click to collapse
Are there apps that can disable throttling and allow it to run at max CPU?
Look at GTX custom ROM thread as an alternative to Joying factory ROM - it may solve your issue. And gtxaspec himself did mention using some software to lock CPU on his HU to 1000 Mhz.
By the way: at some 80+C my CPU frequency shows 728? MHz.
ste2002 said:
Look at GTX custom ROM thread as an alternative to Joying factory ROM - it may solve your issue. And gtxaspec himself did mention using some software to lock CPU on his HU to 1000 Mhz.
By the way: at some 80+C my CPU frequency shows 728? MHz.
Click to expand...
Click to collapse
I was looking into that, looks like I would have to upgrade to Android 6. I did alot of mods to my 5.1.1 (Can use Google Voice Assistant, Audio works on all Navigation Apps instead of just the default one, Bluetooth mod) I'm assuming all that will go away..will I retain this features if I use his mod?
There is high probability that you'll have to reconfigure/install everything again. You may also encounter new issues you do not have now. Its not just a mod, but ROM.
Edited my first post:
After a bit more testing, I downloaded the Trickster Mod. My HU is becoming unbelievably slow. The trickster mod is showing my CPU temperature consistantly between 37*C and 44*C -- Never goes higher than 44*C. ...
CPU is running at 1040Mhz for the majority of the time, a sample of 2 hours showed it at 1040Mhz for 99% of the time... and at a much lower speed for 1% of the time. I can't remember the exact Mhz but what is happening is this..
I ran PowerAmp while watching Trickster and CPU usage remains between 6% and 15% for the majority of the time, and then when I get an audio drop-out, my CPU usage SPIKES to 90% or higher, I lose all audio, then it returns to about 5 to 10% and all audio returns...and it does this consistently where I lose audio during CPU usage spike. I do not know what is taxing my CPU so hard.
Any idea?
So I used an app to determine which apps were taking the most CPU usage, it turns out.. it was my Google App. I reinstalled my Google App and all seems to be well now.
After several factory resets I always got back high CPU usage, like AIDA showing all CPU cores maxed out. The tablet was connected to ADB and over a adb shell I did find with
adb shell
top -m 15
And it listed CNNS-daemon as continously using 30% load with all cores maxed out.
Eventually I found out what to do.
You have to uninstall: Google Device Health Service
https://play.google.com/store/apps/details?id=com.google.android.apps.turbo
After Uninstall mark it to not update or the all cores full high frequency bug will return.
You have to uninstall : Samsung Device Care
Device Care - Apps on Google Play
Device Care - optimize your Galaxy smartphone
play.google.com
Mark that one to not automatically update as well.
Another advice is to clean those two apps their storage and cache.
Use AIDA from playstore to see if your cpu cores are maxed out before and after.
This bug existed several firmwares ago, no factory reset worked since the bugs were coming from installing updates from Google Play.
The apps come both with your current firmware so you use the firmware default ones, especially the Samsung Device Care from factory firmware has more battery and CPU optional functions.
The battery consumption went from 13% an hour to 8% which is a lot improvement.
As of January 2023 this bug is sill not fixed. I found others with this bug. Only Samsung can fix it.
I have the same issue even after a reset and disabling these packages via ADB. Same process cnss-daemon using 2-3 cores all the time.
I have attached a screenshot of TOP via ADB. This is a stock, freshly reset tablet, in safe mode and airplane mode on and this is "settled" CPU usage. Another one is cdsprpcd which is somehow connected to Qualcomm DSP.
Notice how the CPU is only 660% idle, and sys is at 90%+.
TOP output for my Galaxy A70 with all my crap installed etc idles at 750%+, with the TOP command itself using the most CPU while it is running and sys making up less than 10%.
So yeah, something is wrong here, even on reset stock tablet.