I'm just wondering if i'm not used to seeing dual core cpu frequencies. Is it normal to see your minimum frequency jump around between 384mhz and 1026mhz regardless of where you place the sliders?
Perfectly normal. Do you know which CPU governor you're running? Some governors limit the CPU's ability to make large jumps like that, but others allow it.
borxnx said:
Perfectly normal. Do you know which CPU governor you're running? Some governors limit the CPU's ability to make large jumps like that, but others allow it.
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I'm running the Anthrax kernel on "Interactive".
MikeWjF said:
I'm running the Anthrax kernel on "Interactive".
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Rethinking through your original post, did you mean that the CPU speed was jumping outside of the min/max parameters?
I'm not familiar with the Anthrax kernel, but Interactive is one of the "jumpier" governors.
borxnx said:
Rethinking through your original post, did you mean that the CPU speed was jumping outside of the min/max parameters?
I'm not familiar with the Anthrax kernel, but Interactive is one of the "jumpier" governors.
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Click to collapse
No, they're staying within the max and min frequencies.
Sent from my SPH-L710 using Tapatalk 2
Related
The galaxy has a big jump from 400Mhz to 800Mhz. Is it possible by modifying the kernel to an intermediate step (600Mhz) or is the hardware limitation?
Thanks in advance
sorry edited :
fobas001 said:
Galaxy s have 1ghz cpu, wrong forum...
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I think you should read the title... I mean the governor of the cpu. It has various speeds to save energy...
Yes. I beleive SetCPU can do this. I haven't tested though.
I think its possible, I've just added one scaling from 100,200,400,800,1000,1200
SetCPU can do that
soraxd said:
SetCPU can do that
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Only with a stock kernel? So why I can only choose 100-200-400-800-1000 speeds? The ideal would be that it can be set to 600MHz, plenty of power for everyday use
You would have to change the cpu multiplier in order to get a frequency in that range.
You can't change it without adding 600 MHz in the source. SetCPU can only choose the speeds given to it by the source code. I wouldn't be too worried about it though. It only speeds up for as long as it needs to complete a task then it's usually back down to 100 MHz.
AJerman said:
You can't change it without adding 600 MHz in the source. SetCPU can only choose the speeds given to it by the source code. I wouldn't be too worried about it though. It only speeds up for as long as it needs to complete a task then it's usually back down to 100 MHz.
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That is the question. The more intensive use it is when I use the web browser. And would have the necessary fluidity 600Mhz spending less to have it running a while to 800Mhz.
Anyway I see that the overclock is the same as a PC, with the difference of having to modify the kernel. Time will tell if any of those that modify the kernel have the same need and put it.
PD. Google Translate rules...I'm spaniard...
braintheboss said:
The galaxy has a big jump from 400Mhz to 800Mhz. Is it possible by modifying the kernel to an intermediate step (600Mhz) or is the hardware limitation?
Thanks in advance
Click to expand...
Click to collapse
Hello !
A good CPU governor is design to get most CPU performance and save energy without altering too much reactivity (=introducing latency)
This is why the governor jump "as quick as possible" to high frequencies.
BTW, the quickest the CPU calculates the operation asked, the sooner it can go back to deep sleeping states.
Setting a maximum cpu frequency other than 1GHz (800MHz, 600...) is counter productive.
You'll loose both speed and autonomy because the CPU won't be so often in deepest power saving states.
(you'll find many studies about this )
Hi, just wanted to know what is original HTC's ROM CPU scaling range and what is its CPU governor. My guess is 245-528, ondemand - is that correct?
Sorry, I don't know myself, but I'd like to know this too! I've just installed JokerDroid on mine, and I want to set it to stock frequencies so I can improve the battery life.
I'm using 352-691 ondemand, but I think 748 is ok too.
I think the min is 352MHz. But again, I am not so sure. (I arrived at this value when I was on the Stock ROM and used Android System Info which shows the various CPU frequencies and the time periods they operate on that frequency)
zigee said:
I'm using 352-691 ondemand, but I think 748 is ok too.
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Isn't the max. for this device "528"
xXxeXtreme said:
Isn't the max. for this device "528"
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Custom ROM's (Or, more appropriately - Custom Kernels) allow you to set a CPU Speed upto 768MHz.
BUT - The performance increase is not as great as the speed increase shows. So, if you do overclock, don't keep huge expectations.
zigee said:
I'm using 352-691 ondemand, but I think 748 is ok too.
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Click to collapse
I am running on 710 max, some people run on 768 max. But apparantly it is phone related because some people can perfectly run on 768 whilst I read a few days ago from a person here whose wildfire started force closing things around 710 or one higher or so.
Try a bit yourself which works for you. There are benchmarks that you can let run to see how often an error will occur approximately I have no link myself but I know a bud of mine did that to try how high he could go
At 691, some apps force closed, so I'm back to 595. It was stable for me.
gues that the 352MHz is the stock minimum then. There should be a noticable battery life increase when 122MHz is my current IDLE clock huh?
Now Iam running 122-710MHz on stock HTC ROM, very stable. If I set the frequency above 710MHz the scaling become unstable uner LOAD sometimes and dropping to 480MHz.
Using jacob kernel v4.
I wanted to know some more about undervolting and was hoping someone could help and explain a bit. Basically, what I'm seeing is when I undervolt my device on the max side of things, eventually the device freezes and needs a battery pull or reboots. When I don't touch the max voltage values and only drop the min values the phone seems more stable and doesn't reboot. Can someone explain if my thinking of only undervolting the min values is correct and why this may be happening. Also, what would be the proper way to undervolt the phone? I have been using system tuner to do so on deck's 1.3 ROM using the Lee +sbc kernel. Thanks for taking the time to read this and for all the helpful responses.
Sent from my Decked Evo running Lee+sbc... It's easier this way.
I have this same question! I was trying to figure this out becuase the freedom kernels have something to do with under and over voltage to allow better OC? not sure on why the you would need and over voltage to over clock?...
What is your ROM/Kernel setup?
Remember that undervolting and underclocking are two different things. Over/underclocking, via apps like setcpu, raise/lower the frequency at which your processor operates. Over/undervolting raises/lowers the power voltage available to your processor at any given frequency. This can potentially cause problems if you have a kernel set to undervolt your processor while running an app like setcpu to overclock it. This may be why you are seeing issues with your phone.
pmacevad said:
[snip]
I have been using system tuner to do so on deck's 1.3 ROM using the Lee +sbc kernel.
[snip]
Sent from my Decked Evo running Lee+sbc... It's easier this way.
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Concordium said:
What is your ROM/Kernel setup?
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OP clearly states he's running Deck's 1.3 and Tiamat 3.3.7 (aka LEE kernel)
OP should also state Deck's ROM version but I'm assuming 1.3d as it's most popular next to 1.3 Stable.
I'm running the same setup - Deck's 1.3d with LEE SBC. I'd like someone to explain (as the OP also asked) the difference between the MIN and MAX sides of the undervolting equation please.
(I do understand underclocking AND that it is a separate and different animal and for the record, my EVO is UC'd to 128/499MHz and using Smartass governor)
I'm just not sure what I'm looking at in the ST interface (what's the first number and what's the number in [] brackets?) and also not sure just why there is both a min and max voltage for each frequency and how it affects performance.
Thanks much for any inputs.
J.
I use vipermod and terminal emulator for aosp roms its much more stable than using system tuner and you can drop all voltages with a single command it all depends on your particular hardware but typically around -100 the phone will lag or freeze i usually stick to -50 at stock voltages and -25 on overclock i never overclock over 1075mhz as anything higher and my phone tries to cook my fingers however now im oc to 1.6ghz on my et4g with a 200mhz min and it stays nice and cool like it was clocked at 1.2ghz stock the exynos is capable of clock speeds up to 2 ghz but the phone doesnt handle those speeds well similar to the evo not liking anything over 1.19 at 1.2 on the evo theres a good chance of frying the logic board or bursting the battery from heat if you overclock dont undervolt too much as it makes the processor get really really hot due to it having to work harder from lack of energy to power it
We are legion, for we are many
Sent from my Anonymous DeathStar in the depths of GalaXy S2
To answer the min/max at each freq min is the lowest voltage that freq will run while idle max is the highest voltage the freq will run while in use the voltages are depenedant on the load running at the particular freq ie how many process' are running the more process' the higher the voltage required to power the processor
We are legion, for we are many
Sent from my Anonymous DeathStar in the depths of GalaXy S2
Is there an app the will show actual voltage the CPU is using in real time?
Sent from my Synergized Aggressive Lionfish Evo using the XDA app
bmw pro will u can set the mv on the widget or set recording in the app and it will log the info
We are legion, for we are many
Sent from my Anonymous DeathStar in the depths of GalaXy S2
I had a similar issue with undervolting and underclocking. I was setting my CPU min/max to 128-499 MHz and undervolting to -75 or -100 using Lee with Smartass v1. But I was getting too many random reboots and freezes on each ASOP rom I tried (e.g. Deck 1.3d, CM7).
I've been playing around with these settings. I changed my CPU to 128-576, no undervolting, and SZ 2.2.1 with SavagedZen governor. I haven't had any random reboots and my batter life is about the same...plus my phone is MUCH snappier. I'm still getting a little screen on lag but not nearly as much as I was at 128-499 and undervolted.
As a note, I normally run Deck 1.3d as my daily driver but for the last couple days I've been running KWIQ. It's definitely giving 1.3d a run for its money as becoming my daily driver.
Anywho, are there any rules of thumb with undervolting and underclocking? Like is 128 MHz is too low with -100 undervolting? Or are these things pretty much phone dependent? I know each phone seems to respond different to these things.
-EViL-KoNCEPTz- said:
To answer the min/max at each freq min is the lowest voltage that freq will run while idle max is the highest voltage the freq will run while in use the voltages are depenedant on the load running at the particular freq ie how many process' are running the more process' the higher the voltage required to power the processor
Click to expand...
Click to collapse
Thank you. That made good sense to me. Question then: is it suggested/typical to drop min and max by equal amounts or is it typical to drop min more (so there's juice for the proc under load but maybe being more aggressive with the sleeping/idle side of things or can the proc run at a given frequency at different voltages)?
jackfrost909 said:
I'm just not sure what I'm looking at in the ST interface (what's the first number and what's the number in [] brackets?)
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Click to collapse
Are you familiar enough with ST to shed some light on this? Please if so. Thank you.
detcup4evr said:
Is there an app the will show actual voltage the CPU is using in real time?
Click to expand...
Click to collapse
-EViL-KoNCEPTz- said:
bmw pro will u can set the mv on the widget or set recording in the app and it will log the info
Click to expand...
Click to collapse
Though I have to recheck this I don't remember BMW showing the voltage being used at each frequency just the overall voltage draw. If you know otherwise or another tool that does, please share
Thanks for all the help.
J.
--
Tapa Tapa Tapa..
Let's see.. My phone flies, my battery doesn't suck.. and your point was.... ?
OG EVO - Deck'd and LEE'd because it's just better this way.
Lionfish kernel
Has anyone tried undervolting with lionfish kernel on SENSE Roms, is it stable?
einstein562 said:
Has anyone tried undervolting with lionfish kernel on SENSE Roms, is it stable?
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I use aggressive and it works well but some phones don't like it, hopefully I can get vipermod to work, and that will allow you to adjust each frequency independently
Sent from my Synergized Aggressive Lionfish Evo using the XDA app
I actually just got rid of lionfish aggressive on MikG3.11
I had a lot of lagginess, but battery life was really good... Back to anthrax for me, lionfish was based at one point on freedom kernels I thought, maybe one of those would be better...?
What's the best thing to use to control undervolting on sense roms?
Sent from my PC36100 using Tapatalk 2
Is the battery life improvement substantial when undervolting?
I have governators set at 240-650max and am getting decent life on my ics savoca kernel.
What % improvements are obtained?
Well I don't have logcats and scientific evidence, but I saw about 12 hour days, with moderate use, everything syncing, lots of text a few calls, hotspot for an hour or so, some web browsing, but the random revolts and lagginess on that was horrible, freedom was better.... It's worth it to underclock
I have everything set to 384-1152.
Different governors for profiles, screen off @ conservative because I have a lot to sync
Sent from my PC36100 using Tapatalk 2
I'm using NoFrills CPU and want to find the right balance between overclocking, performance and battery...
What speeds and governors are everybody using for their Plays?
I'm using 1.2 Ghz max 130 Mhz min with SmartassV2 and sio. All seems okay to me.
I'm using 921mhz-122mhz intellidemand2 with sio governor and everything is smooth + battery is great
Sent from my R800i using xda premium
1401Mhz Max, 180Mhz Min (when Screen On), 785Mhz Max-180Mhz Min (When Screen Off)
Noop + InteractiveX
---------- Post added at 12:27 PM ---------- Previous post was at 12:26 PM ----------
1401Mhz Max, 180Mhz Min (when Screen On), 785Mhz Max-180Mhz Min (When Screen Off)
Noop + InteractiveX
So many different settings!
Was hoping there'd be a 'common' setting that everyone kind of determined was best.
Thank though.
Still interesting, and would like to see what more people are using still.
Mines currently 1.613 Ghz Max, 245 Mhz Min. Virtuous Governor, Noop I/O Scheduler.
On intensive apps I change the max clock to 1.901Ghz however this I don't recommend for most people.
I also only use 1.9Ghz when using Android 2.3.7 with DoomKernel, as only that Kernel seems to allow for voltage changes... Which i apply when using that kind of speed, whereas the default voltages are much higher for that clock than I usually set.
Everyone's Play is different, and not all Plays can sustain high clocks at specific voltages. You need to find your own 'sweet spot'.
Spizzy01 said:
You need to find your own 'sweet spot'.
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Is there an app for that?
No.
You need to increase your clock little by little until you're happy. Then, if you're on GB using DoomKernel you need to lower the voltage as much as you can without it crashing if you want it perfect.
Most people simply oc though and don't bother with the voltages, but it will reduce power consumption and extend the life of your phone with the OC enabled.. As normally running your CPU past its specification will wear it out faster.
Sent from my R800i using xda premium
As DiKeJ said in his ROM thread:
In my opinion, interactiveX, and frequency of CPU 364.8-1305.6MHz gives awesome stability and performance
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:good:
TRUE FACT.
you should use a kernel that allows you to undervolt... there was some article with the galaxy S3, where they tested different settings with OC+UV and YES, Under Volting gives better battery life!!
A lot of people here say, that UV will have no effect on battery, but they have no idea how a processor works... so they just should stfu!!
I am using ElementalX kernel on stock 4.4.4 android. I have to OC set to 1.944GHz currently. AnTuTu bench at 1.944GHz and 450MHz GPU gives me between 24-25k result. Now if I lower the CPU to 1.89GHz it drops to 21k. And if I go back to stock freq I get 19k. Something does not seem right in the test results as related to the frequencies. Question is this: Are there sweet spots in the frequency range for the CPU?
P.S. I know many people dislike benchmarks...I'm using it for comparative purposes...
mrcoffee1985 said:
I am using ElementalX kernel on stock 4.4.4 android. I have to OC set to 1.944GHz currently. AnTuTu bench at 1.944GHz and 450MHz GPU gives me between 24-25k result. Now if I lower the CPU to 1.89GHz it drops to 21k. And if I go back to stock freq I get 19k. Something does not seem right in the test results as related to the frequencies. Question is this: Are there sweet spots in the frequency range for the CPU?
P.S. I know many people dislike benchmarks...I'm using it for comparative purposes...
Click to expand...
Click to collapse
It states it in the thread, having cpu at 1.9ghz is not economical with battery consumption and performance, it Is best at 1.7ghz
mrcoffee1985 said:
I am using ElementalX kernel on stock 4.4.4 android. I have to OC set to 1.944GHz currently. AnTuTu bench at 1.944GHz and 450MHz GPU gives me between 24-25k result. Now if I lower the CPU to 1.89GHz it drops to 21k. And if I go back to stock freq I get 19k. Something does not seem right in the test results as related to the frequencies. Question is this: Are there sweet spots in the frequency range for the CPU?
P.S. I know many people dislike benchmarks...I'm using it for comparative purposes...
Click to expand...
Click to collapse
You should monitor your CPU temp and frequency while benching.
You would see that your CPU's temp probably goes above 70°C if not higher and so the kernel thermal throttling policies would downclock your CPU's max freq. in order to keep your CPU "cool".
If you first bench @ 1944MHz then bench @ a litle lower frequency and have very lower score then its not because of the lower freq. but because you did first heat up your CPU @ 1944 and when you re-run @ lower freq. your CPU is already very hot and so does a severe thermal throttling.
Last point : running your CPU @ 1944MHz is not good since thermal throttling while happen every now and then.
Not convinced?
Then simply launch the camera app and try to take a video of 5 mins...your CPU will become so hot that it will downclock to something ridiculously low and your recording will become jerky.