just a quick question
Depends on what the phone is doing. Stock can go to 1200mhz if required. By the same token, if the phone only needs 200mhz for a given task, then that's what it will use.
In what context are you asking the question ?
No basically i was checking antutu benchmark and the maximum it said was 800mhz.
was i just looking at the wrong info or is it the max its clocked at? cpu it says is 200 - 800
Default Clock speed for the Galaxy S2 is 200mhz to 1200mhz (1.2Ghz)
In Antutu, if you click on the 'i' on the bottom of the screen and scroll to System Info, it should show CPU Frequency as 200.00 - 1200.00 MHz, unless you have it underclocked.
Also, from what i understand, Antutu aswel as other apps always show the S2 cpu as ARM Cortex-A7 processor, when in actual fact its an ARM Cortex-A9 processor
Have you set a profile in an app that can set the CPU min/max (Voltage Control, Set CPU, etc, etc) ? I use 200-800 as a default profile.
So far as benchmarks/info they provide are concerned, I wouldn't know given I personally think benchmarks are a complete waste of time (and have never run one on my phone).
Essentially, on stock, your CPU should have a 200-1200mhz range, and the CPU speed at a given point in time will vary depending on what the phone is doing as I said in my previous post.
Oh I see thanks to both of you
Related
Hi... I have rooted my Samsung GS2 and payed for the OC app TEGRAK ..
But every time I go over 1400mhz the phone gets very unstable.
It even feezes at 1400 mhz when i use my navigon app...
I have tested it at 1500 mhz.. But reboots in a kind of save mode.,,,
At 1400mhz i runs Quadrant smooth with 4200 in score
And 56 MFLOPS in Linpack
But why is my phone so unstalbe?
But why is my phone so unstalbe?
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Click to collapse
Because it's supposed to run at 1.2Ghz.
If every SGS2 was able to run at 1.4Ghz without any issue I guess Samsung would have set them at 1.4Ghz by default (since battery life is obviously the least of their concerns ^^). When CPUs are produced, there's always variations in quality. what usually happens on x86 CPUs is that they're tested, sorted according to their max stable frequency, and then sold under different names and at different prices. For Exynos my guess is that any CPU that fails to pass the 1.2Ghz bar is just ditched, and they keep the others, some of which will work at 1.4Ghz, whereas some won't.
Now if you want to gain more stability, you can always try to increase the voltage, it usually gets more stable as voltage increases, but it also gets hotter (which can cause it to crash, or may even permanently damage the processor).
BlueScreenJunky said:
Because it's supposed to run at 1.2Ghz.
If every SGS2 was able to run at 1.4Ghz without any issue I guess Samsung would have set them at 1.4Ghz by default (since battery life is obviously the least of their concerns ^^). When CPUs are produced, there's always variations in quality. what usually happens on x86 CPUs is that they're tested, sorted according to their max stable frequency, and then sold under different names and at different prices. For Exynos my guess is that any CPU that fails to pass the 1.2Ghz bar is just ditched, and they keep the others, some of which will work at 1.4Ghz, whereas some won't.
Now if you want to gain more stability, you can always try to increase the voltage, it usually gets more stable as voltage increases, but it also gets hotter (which can cause it to crash, or may even permanently damage the processor).
Click to expand...
Click to collapse
At 1.4ghz the phone will also get hotter and it decreases the lifetime if you run 24/7 at 1.4ghz
Ok.. I know about the x86 cpu's.. But didn't think it was the same in ARM cpu's-
But I see ALOT SGS2 that runs 1800mhz..
I guess that I just have one of the not so OC lilkes...
Overclocking won't always work for everyone at same levels.
I've also seen evidence to suggest that OCing significantly reduces the life of the SGS2. Nobnut had his phone vastly overheating even on stock speeds, and constantly rebooting... He overclocked. A number of others reported similar.
Overclocking is not simple and it is not that you just click on 1400/1500 MHz and you are Overclocked. A lot of things matter here. When we overclock in our Desktops then we have to test it very thoroughly, setting up the right VCore, Bus voltage, Multiplier, checking the stability and temperature etc. etc. Tegrak OC is a nice and simple software to use, but it can't be perfect when you can't set all the settings manually other that just higher the clock rate. Personally I'd always stay with stock speed as incorrect OC could harm my CPU and GPU.
Regards.
If you know anything about overclocking then you'll understand that there are a variety of factors that affect the overclocking of a system. The overclock headroom you get from a processor varies, add to that the variables in component tolerance in the circuit board and you have a huge variety of factors that can limit the maximum frequency that you can overclock your system to.
I'll give you an example using my computers. Click on the images below:
Both processor overclock similarly on using the same components and that was the maximum I could get out of them. Now when I bought an EVGA X58 Classified motherboard and overclocked the Xeon W3520 I got it up to 4704 MHz with less vCore and less CPU VTT. All of this was done with aircooling.
My point is that not all systems will overclock the same even though they share the same model components.
tegrak promised he was going to upgrade his tegrak overclock app to work with all kernels and it looks like he's delivered! (see http://forum.xda-developers.com/showthread.php?t=1101355
I'd installed the free version as tegrak suggested a couple months back to see if it would work with my phone. It didn't, but yesterday, it upgraded to version 0.6.0.9. I had a bullet kernel that allows OC to 1.2 ghz with no voltage adjustments. The free version doesn't OC but will let you know if the paid version will work with your phone.
The paid version ($2) works. At least on my phone it does. Maybe no need for special kernels anymore. I haven't tried it with a rom that doesn't support OCing and overvolting yet but I'm going to do that this weekend.
The higher speeds need overvolting and there's no directions on how to do it. tegrak overclock will officially only let you go to 1.3 ghz but if you select the fine "optimization" you can go way up beyond that. I immediately zoomed it up to 1600 mhz with no voltage adjustments and the phone locked up and started buzzing. I had to pull the battery and reboot. Don't do that! Go up a little at a time and then let the stability test run (pull down notification screen to see how many seconds are left.)
There are buttons to adjust by small amounts. You should be able to set it at 1.4 ghz with a little overvolting without too much trouble. Right now my phone is stable at 1524 mhz and core voltage of 1361 mv using an "on demand" profile of 100-1524mhz and it's not hot. Quadrant score at that setting was 3201. That's pretty good for a kernel that only supports OC to 1200 mhz.
I couldn't get to 1600 yet without locking up the phone -- needs more overvolting I figure.
If you have sgs overclock, after you up the speed, it will have the top speed bar at the bottom 100mhz and you will have to drag it up there. I don't know why this should make a difference but my quadrant score was in the 2700s before I did it.
Write down your figures 'cause if the phone locks up and you have to pull battery and reboot, the phone will ask you if you really want that speed that didn't work, and when you say "no" you'll be back at the beginning again.
There is more discussion in the 19000 forum on tegrak's 2.3.4 kernel (for I9000) and the OC app. according to tegrak's guide, the Galaxy S can be stably undervolted using his utility at various speeds and I guess save battery life:
speed standard core voltage undervolt
1000mhz 1275 mv 1225 mv
800mhz 1200 mv 1125 mv
400mhz 1050mv 950mv
200mhz 950mv 825mv
100mhz 950mv 800mv
There is a dialog in the app to set the voltage for each of these speeds in addition to setting the OC speed and voltage. I'm not sure whether tegrak has tested this on the various flavors of Galaxy S or whether he means the I9000. I'll just have to see.
here is his figure for a 1200mhz OC.
speed standard core voltage overvolt
1200mhz 1275 1310
Seems to be working good!
All nonsense and misspelled words courtesy of my unsupported samsung device.
just wondering, there's so much talk about overclocking CPU.
why no discussion on overclocking for GPU? is it possible?
i think if the higher GPU clockspeed improve performance even more than CPU clock speed, doesn't it?
if i understand correctly, galaxy nexus GPU is the same as galaxy S1. but with much higher clock speed. So the GPU speed can be made higher right?
Some kernel, as Siyah allows you (with extweaks) to overclock gpu up to 400 mhz, but I think this is useless, no app need more than 200-267 mhz.
A good idea can be downclock gpu and cpu frequency and decrease voltages to save battery.
Zoidroid said:
Some kernel, as Siyah allows you (with extweaks) to overclock gpu up to 400 mhz, but I think this is useless, no app need more than 200-267 mhz.
A good idea can be downclock gpu and cpu frequency and decrease voltages to save battery.
Click to expand...
Click to collapse
Oic....thanks for the info,
what is the default gpu speed of S2?
Ray1 said:
Oic....thanks for the info,
what is the default gpu speed of S2?
Click to expand...
Click to collapse
I think (coz i saw this about a week ago haha)there are two GPU states low 200Mhz and High 267Mhz..
Please, anyone correct me if I'm wrong..
Danpamio said:
I think (coz i saw this about a week ago haha)there are two GPU states low 200Mhz and High 267Mhz..
Please, anyone correct me if I'm wrong..
Click to expand...
Click to collapse
Gpu steps are 3. According to information provided by extweaks default frequency values are 160, 267, 267, but you can set as you want.
setting cpu gpu
hi you could try here for more info
http://forum.xda-developers.com/showpost.php?p=26755476&postcount=850
Zoidroid said:
Gpu steps are 3. According to information provided by extweaks default frequency values are 160, 267, 267, but you can set as you want.
Click to expand...
Click to collapse
That is the "Performace" setting of siyah(160, 267, 267). Or maybe it is the default but siyah considers it as a performance setting
Sent from my GT-I9100 using xda premium
I'm using CM9 RC1 on a Note right now and the default settings are 200 Mhz min and 1.4 Ghz max.
Is there any benefit to using a higher min like 500 Mhz or is it just a waste of power? I'd assume it would be slightly faster upon wake up.
You can always try, as long as you know what you're doing. Are you familiar with overclocking, and how to test higher clock speeds without having them set on boot until you have tested for stability. 200MHz seems a bit low for echo 0, but you can try to start bumping up echo table 0 values slowly and at small incremental increases. For instance, from 200MHz, go to 220MHz and test, then if stable bump up to 240MHz and so on. Jumping from 200MHz to 500MHz may not be the best idea without a "seasoning" of the CPU at echo table 0...
Sent from my MB865 using xda's premium carrier pigeon service
I've overclocked on PCs before but I'm not overclocking. I just want to know if there's any benefit to setting a higher min speed.
It probably will not yield any performance increase to clock your lowest frequently scaling higher, since likely your device's governor (I'm assuming) is set to mot_hotplug.
Unless you're using a governor setting of "performance" or the like, your CPU's governor will step down through the kernel's frequently tables as determined by the load. Again, unless you're running a governor setting that does anything but what is similarly done with mot_hotplug the CPU's core(s) will be turned off when not demanded.
Sent from my ME860 using xda premium
Ive been using android overclock. On demand. and staying at 350 to 1420 and its been working really well as far as battery usage
I´ve been using ondemand-noop min 245, max 1024
Ok. That was 2012. Now is 2020. Updates to minimum and maximum for Android 8/9???
quantum-codes said:
Ok. That was 2012. Now is 2020. Updates to minimum and maximum for Android 8/9???
Click to expand...
Click to collapse
Just to have said it: CPU speed affects performance of Android device, doesn't depend on Android version. The more a processor is stressed the more the battery is drained. IMHO CPU speeds matter less than they did in the past, thanks to the advent of multi-core processors as they installed in ( most ) modern phones. Multi-core processors always have a "mixed speed": Not all cores are stressed the same way. Also, note how these multi-cores processors are designed: Octa-cores for example aren't using all 8 cores at once. Octa-cores use 4 high speed cores and 4 low speed power efficient cores. An Octa-core uses the 4 power efficient cores most of the time, but switches to the higher speed cores as needed for power intensive tasks.
I don't think there is a way to configure each cpu-core's max /min speed separately. BTW: Even today most Android apps/games make use of 2 cores only.
Hello,
I'm writing this thread to know which processor options would be optimal in our minis. The best settings, which give me the best performance/battery, I've found are:
CPU Governor: SMARTASSV2 (Default)
Min Freq: 19MHz
Max Freq: 748MHz
Undervolt: TRUE
I'm also using Apex Launcher. Which settings are you using?
Note: This are just my results, be careful when you change your processor settings.
fuchini said:
Hello,
I'm writing this thread to know which processor options would be optimal in our minis. The best settings, which give me the best performance/battery, I've found are:
CPU Governor: SMARTASSV2 (Default)
Min Freq: 19MHz
Max Freq: 748MHz
Undervolt: TRUE
I'm also using Apex Launcher. Which settings are you using?
Note: This are just my results, be careful when you change your processor settings.
Click to expand...
Click to collapse
Whats the purpose of Undervolting when you have it's max frequency as overclock?
zvdelossantos said:
Whats the purpose of Undervolting when you have it's max frequency as overclock?
Click to expand...
Click to collapse
Because it undervolts on every frequency below 600, and his minimum is 19, so when the phone is idle or doesn't need all of the processing power he saves battery
The SmartAss governor is very good at picking the right frequencies for any given job, so it doesn't allways run on 748Mhz, not even when you're using the phone.
SmG67 said:
because it undervolts on every frequency below 600, and his minimum is 19, so when the phone is idle or doesn't need all of the processing power he saves battery
Click to expand...
Click to collapse
That is the same very purpose of SMARTASSV2 to undervolt your device when idle or on sleepmode and overclocks it when on process. So ticking the undervolt wont affect your device because the one that manage the frequency will be the COUgovernor.
zvdelossantos said:
That is the same very purpose of SMARTASSV2 to undervolt your device when idle or on sleepmode and overclocks it when on process. So ticking the undervolt wont affect your device because the one that manage the frequency will be the COUgovernor.
Click to expand...
Click to collapse
The SmartAss Governor only governs the frequencies, not the voltage that the Processor uses. there is a difference between the speed the cpu runs on (Mhz) and the amount of Electricity (Volts) it gets fed
Say Qualcomm has said it needs 5 volts to run at the stock frequency of 600Mhz, then the processor will always get 5 Volts, no matter which frequency it uses.
Undervolting will feed it less than the 5Volts when the frequencies are lower, SmartAss won't do that, it will run the 19Mhz still on 5Volts.
(Voltages are examples, i don't know the exact values, but I know that running on 122 or less will be stable on less than half of the nominal power)
SmG67 said:
The SmartAss Governor only governs the frequencies, not the voltage that the Processor uses. there is a difference between the speed the cpu runs on (Mhz) and the amount of Electricity (Volts) it gets fed
Say Qualcomm has said it needs 5 volts to run at the stock frequency of 600Mhz, then the processor will always get 5 Volts, no matter which frequency it uses.
Undervolting will feed it less than the 5Volts when the frequencies are lower, SmartAss won't do that, it will run the 19Mhz still on 5Volts.
(Voltages are examples, i don't know the exact values, but I know that running on 122 or less will be stable on less than half of the nominal power)
Click to expand...
Click to collapse
Nice yes yes. good reply. now I know whats the use of undervolting. thanks for the explanation
SmG67 said:
The SmartAss Governor only governs the frequencies, not the voltage that the Processor uses. there is a difference between the speed the cpu runs on (Mhz) and the amount of Electricity (Volts) it gets fed
Say Qualcomm has said it needs 5 volts to run at the stock frequency of 600Mhz, then the processor will always get 5 Volts, no matter which frequency it uses.
Undervolting will feed it less than the 5Volts when the frequencies are lower, SmartAss won't do that, it will run the 19Mhz still on 5Volts.
(Voltages are examples, i don't know the exact values, but I know that running on 122 or less will be stable on less than half of the nominal power)
Click to expand...
Click to collapse
nice to see some piece of truth over here (not perfect, but well explained)
de-noobing is good from time to time
xda is overcrowded of false answers given by people thinking they know but don't
anywhere, at anytime, newbies asking get fake answers from people wanting to help but failing to do so , due to lack of knowledge.
as everyone, i might be one of these, but try not to be.
make sure you know what you are talking about before spreading your (incomplete or false) knowledge
this was my thought of the day
matmutant said:
nice to see some piece of truth over here (not perfect, but well explained)
de-noobing is good from time to time
xda is overcrowded of false answers given by people thinking they know but don't
anywhere, at anytime, newbies asking get fake answers from people wanting to help but failing to do so , due to lack of knowledge.
as everyone, i might be one of these, but try not to be.
make sure you know what you are talking about before spreading your (incomplete or false) knowledge
this was my thought of the day
Click to expand...
Click to collapse
Would you mind to add that to FAQs to avoid false answers?
Tom.K said:
Would you mind to add that to FAQs to avoid false answers?
Click to expand...
Click to collapse
of course i don't
do you mean only the explanation about oc/uv ?
i can add it, note that a while ago i wrote pieces of information about those things
Hey, thanks a lot for all the replies. I had no idea why my settings worked like i wanted.