I've been working on building a dual core cpu meter for the atrix. I have a very very basic APK that reads your /proc/stats and displays it. I have noticed that on launch cpu 1 shows up and exists but after a few ticks, it's no longer there... I'm not saying that the phone isn't using it. I'd simply like to know why it's disappearing.. Sorry in advance if I posted in the wrong forum.
Edit: Is it safe to assume that since the core isnt being shown in the proc stats at certain intervals that the core is being put into a sort of 'standby' mode until a thread is passed to it? If so, could I default that core to 0% cpu usage when not shown.
Just a thought - do something to up your CPU, maybe spawn a couple processes to eat up some CPU cycles and see what happens?
mister_al said:
Just a thought - do something to up your CPU, maybe spawn a couple processes to eat up some CPU cycles and see what happens?
Click to expand...
Click to collapse
To max out kernel CPU time
cat /dev/zero > /dev/null
Hi!
Is there an app that can change the CPU governor according to useage? I mean, I'd like to have the governor on "ondemand" setting, while I'm not using the phone (the screen is black), but it would be cool if an app would set the governor to "performance" as soon as the screen lights up. It could be done with Tasker perhaps, but Tasker doesn't want run on my phone, doesn't even want to install...
Is there an app for this? Thanks for the answer!
koko008 said:
Hi!
Is there an app that can change the CPU governor according to useage? I mean, I'd like to have the governor on "ondemand" setting, while I'm not using the phone (the screen is black), but it would be cool if an app would set the governor to "performance" as soon as the screen lights up. It could be done with Tasker perhaps, but Tasker doesn't want run on my phone, doesn't even want to install...
Is there an app for this? Thanks for the answer!
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Click to collapse
Yyyyy, SetCPU ....
Sent from my GT-I5800 using XDA Premium App
cop1976 said:
Yyyyy, SetCPU ....
Sent from my GT-I5800 using XDA Premium App
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Such a dumb, I am... Of course SetCPU! I've been using NoFrills for some time, I'm changing that. Thanks!!!
Use Set CPU, go the 2nd page in that and there you can select profiles.
For example suppose your kernel allows you upto 667 MHZ, then you can select in the profile something like :
When in call, max 300 Mhz.....or Screen Off, Max 200 MHz.
in the 3rd page of Set CPU, it also allows you to undervolt, you may try with -50 in the values.
umangsagar said:
Use Set CPU, go the 2nd page in that and there you can select profiles.
For example suppose your kernel allows you upto 667 MHZ, then you can select in the profile something like :
When in call, max 300 Mhz.....or Screen Off, Max 200 MHz.
in the 3rd page of Set CPU, it also allows you to undervolt, you may try with -50 in the values.
Click to expand...
Click to collapse
My default profile is 390-1170 MHz with performance scaling, and I've set up a profile for screen off with 390-780 MHz with ondemand scaling. I suppose I can set it to lower frequencies as you suggested.
How does undervolting affect CPU usage? I don't know much about these things
My OG Droid had both battery and CPU temp sensors, I was disappointed to find out the DX only had a battery sensor. Does the SGS3 have both?
Sent from my DROIDX
No one has a full list of sensors? Search turns up nothing. I can't imagine no one has tried to run a CPU temp widget yet.
Sent from my DROIDX
Will try to post a screen capture shortly, but the CPU Temp widget show a CPU and CPU use% etc. So I would assume that there is exposed stats for the CPU temperature on this phone.
I used TEMP + CPUv2 for the test.
Z-DeviceTest app in the market
hey i just got the system tuner pro app and have been poking around with the widgets and cant figure out how (if you can) get the widgets to display the usage stats of an individual core. i have been trying to do this because i have been messing around with the overclock settings that have recently been released and now i cant tell if the second core (cpu1) is active at all because in system tuner it always displays it as offline even in the performance governor. so since the app tells you the frequency of the individual cores and tells you when its offline and such (but doesn't keep a log) i thought maybe i could get a graph to display cpu and cpu1 individually to see if when i stress the phone in a game or something that it will kick on. any help is appreciated
Edit: Well i got the second core to go online but it would still be nice to know if i can get a widget to show the individual cores
I would like manually create settings for when my CPU is overclocked and underclocked and I was hoping to find some help with this. I want my phone to underclock to roughly 800mhz - 900mhz when the screen is off, battery is bellow 20% and when the phone is above a certain temperature and overclocked to 1.1ghz at all other times. How would I go about doing this? I am new to tasker and there doesn't seem to be an option for CPU controll. If someone could advise me how to do it, rather than just direct me somewhere I can download a profile, I would appreciate it.
I am using a HTC Desire with VJ's CM 10.1 rom (performance control is not in settings as of now, using daemon to overclock)