Database Users

CPU clocked to 800Mhz

Aparently the CPU may only be clocked to 800Mhz........

If you got this from the Au website, Whirlpool, than I think they are talking about the iPhone 4, not the Galaxy S

well it's from the galaxy s thread and one of the guy who's doing the testing and stuff for samsung says this......definitely not iphone.
Guess just wait and see when it's released I suppose

huh? wat are you guys talking about? its 1ghz cpu

forums.whirlpool.net.au/forum-replies.cfm?t=1409745&p=58#r1152 is the link to the post where the user suggests it is 800mhz underclocked.

Yh, sorry, was reading a thread where they were talking about the iPhone being underclocked, just reading more, it seems it may be the case.
Will mean battery last longer, not such a bad thing, as long as it doesn't effect any of the performance of the phone

If they say 1Ghz then it is 1Ghz or else they're going to have a lawsuit on their hands. Nothing in between(except of course scaling).

I have the galaxy s and im pretty sure its 1ghz.. at least system panel tells me its 1ghz but singapore set are all 16gb model.
information from system panel:
ARMv7 Processor rev 2 (v7I)
bogomips 797.90 (may vary)
min clock 100mhz
max clock 1000mhz
on Nexus one using pershoot kernel but cpuset at 245mhz - 998mhz, it shows:
ARMv7 processor rev 2 (v7I)
bogomips 662.40 (may vary)
min clock 245 mhz
max clock 998mhz
so maybe the 8gb are down clocked?

Doubt the 8Gb version would be clocked lower. Thanks for posting your findings!

It's just the power of forums and the internet, allowing mis-information to spread at the speed of light

lol yep, looks like he was confused at the sliding clock speed....

when i ran quandrant standard it read armv7 processor rev 2 , max 1000 min 100
set frequency 800
is that normal
regards

It's 1 GHz, I checked the clock frequency with a monitoring application and it's dynamic but when required it clocks up to 1 GHz.

Intratech said:
It's 1 GHz, I checked the clock frequency with a monitoring application and it's dynamic but when required it clocks up to 1 GHz.
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thanks for clearing this up
regards

Wait, what?
The iPhone 4 may be clocked at 800mhz?
Can someone give source on this?

Pika007 said:
Wait, what?
The iPhone 4 may be clocked at 800mhz?
Can someone give source on this?
Click to expand...
Click to collapse
I don't have a link to that claim, but I think it was Gizmodo in their testing of the iPhone 4 and iPad noted the iPad did feel faster and the web browser rendered pages faster, despite both using the A4 processor. They hypothesised that it is the same architecture CPU in both, but different clock speeds.
After all, to get 10 hours out of the iPad the teardowns and x-ray scans show about 80% of the volume inside is all battery. If the iPhone 4 and iPad had the same processor, you'd think the iPhone's battery would be pretty bad considering the far smaller volume (although smaller screen not sucking as much power).
Wouldn't be surprising. After all, the Motorola Milestone / Droid has a mild underclock, as does the Acer Liquid to preserve battery life.
Probably cheaper for Apple to only have to manufacture 1 chip (the A4), but clock at different speeds appropriate to each device's battery life.
Apple doesn't focus as much on specs though, more that the user interface feels fast and smooth. If it achieves that purpose no need to worry about numbers, whereas since we have so much choice of handsets on Android specs do make a difference for us to know depending on our needs (eg: price vs performance vs battery).

My Samsung Galaxy S is running at 800mhz it sucks... i flashed it last night with the final build of 2.2 I9000XXjP6 for the Galaxy does anybody no how i can overclock it to 1ghz thanks People

The Galaxy S has a 1 GHz CPU. However, the clock speed is lowered while not needed to save battery life, just like on any modern PC. By default it is using the conservative governor.
The iPhone4 never was supposed to get a 1 GHz CPU. Apple never disclosed the number. But those who made benchmarks estimated the clock speed at about 800 MHz since is is about 20% slower than the iPad.

There is a Galaxy Lite version in some other countries that only maxes out at 800 Mhz
i think the guy reviewing the phone got it mixed up with that

AllGamer said:
There is a Galaxy Lite version in some other countries that only maxes out at 800 Mhz
i think the guy reviewing the phone got it mixed up with that
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He might have got mixed up, but the final 2.2 build for the Samsung Galaxy S is maxed out at 800 MHz for some stupid reason…. I’m going to flash it tonight again with a earlier build of 2.2 as I did some bench test and its only scoring a measly 900 points with the latest firmware installed.. Were as before it was scoring well over 2k…

1GHz, Both or each one?

Hi all.
I was questioning myself if the motorola xoom has two cores of 1ghz each one, Or both together have 1Ghz...?
Can Someone answer this?
p.d. Sorry 4 my bad english.

Both cores will be 1 GHZ.

solarnz said:
Both cores will be 1 GHZ.
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So, it has 2 cores of 500mhz each one?

Ifiuse said:
So, it has 2 cores of 500mhz each one?
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Click to collapse
1 core / 1ghz.

1 CPU...two cores...1ghz per core...1ghz total
Sent from my Xoom

Thanks u. Regards.

Im an Electronic Engineer so forgive my not understanding peoples confusion with the ghz thing but ...
Frequency is a rate, its speed, this is not a volume or value, were aren't saying they have 2MB of memory, is it 2 each or 1, 1.
Time runs at 1hz for me, as it does for everyone else in the world, do we share the 1hz or is it equal?
The hardware design determines the clock frequency of a cpu core, it doesn't, matter if you have a single for 1ghz, 2 core 1ghz or 20480 core 1ghz,
As long as those cores are they same, they run on the same clock.
To ask if they share the clock time would be like saying I have a guy that can do 2 sums every time the sun rises, now I have 2 guys that can do two sums every time the sun rises, do they do ne each? No, sun rises once a day and each of them does two sums, so you get twice as much work out of them in the same amount of time.
That might raise the question, well, while dont we just have 50 cores?
Well, its expensive to manufacture, its subject to low yield, it expensive and power consuming, also software has to be written to take advantage of all the cores (if you don't have enough sums to give your two guys, they can't give you results, right?)
Anyway, point is, the frequency is a rate, and don't for a moment assume that higher frequency automatically means more powerful processing. (Its true to an extent, but only within the same architecture.)
Macbots drool as I XOOM through the Galaxy to my hearts Desire.

good analogy, I use the car & highway one... 2 cars 1 lane for single core or 2 lanes and 1 car on each lane for dual core..

so? total=1ghz for all or total=2(1ghz) im slow

lchingonl said:
so? total=1ghz for all or total=2(1ghz) im slow
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Lol, there is no _total_!
1GHz is the frequency that the CPU core clock runs at, they all run the same, on the same clock, 1 core, 2 cores, ten cores.
You need to understand this concept that "total" doesn't apply here.
This is not "1GHz per core", the core clock frequency is 1GHz, and there are two cores, they BOTH run at 1GHz.

This is the first dual core I've had, and I don't know much about the technology.
What's the difference between a dual core cpu running @ 1GHz and a single core running @ 2 GHz?

Psychokitty said:
This is the first dual core I've had, and I don't know much about the technology.
What's the difference between a dual core cpu running @ 1GHz and a single core running @ 2 GHz?
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2 cores both running at 1ghz still equals 1ghz...1 core running at 2ghz equals 2ghz.
Lets try this:
If two cars are both going down the road at 60mph, how long does it take them to go 60 miles? Even though there is 2 of them, both running the same speed, it still takes 1 hour. Hope this helps you understand.

Am I right in believing that with two 1ghz cores, there would be no benefit in speed unless the app or OS were specifically designed to utilize both cores? My understanding was that if you had two 1ghz cores, and the app was programmed to utilize both cores, each core would handle it's own load. Is this wrong?
Does two 1ghz cores truly equal 2x the speed if the app is programmed to use both?

deepducky said:
Am I right in believing that with two 1ghz cores, there would be no benefit in speed unless the app or OS were specifically designed to utilize both cores? My understanding was that if you had two 1ghz cores, and the app was programmed to utilize both cores, each core would handle it's own load. Is this wrong?
Does two 1ghz cores truly equal 2x the speed if the app is programmed to use both?
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No, it depends on the application's workload more rather than the programming. If the application can split its workload into parts that can be done in parallel, you get a speed increase. However, if the application relies completely on having to have one part that cannot be broken up into parallel-running parts, then you will get absolutely no benefit from a multiple-core processor.
Mostly, dual-core processors are about *efficiency* rather than *speed*. Here's a good analogy. It's about being able to walk and chew gum at the same time, rather than having to walk a bit, stop, chew gum for a bit, stop, walk a bit more, stop, etc.

ydaraishy said:
No, it depends on the application's workload more rather than the programming. If the application can split its workload into parts that can be done in parallel, you get a speed increase. However, if the application relies completely on having to have one part that cannot be broken up into parallel-running parts, then you will get absolutely no benefit from a multiple-core processor.
Mostly, dual-core processors are about *efficiency* rather than *speed*. Here's a good analogy. It's about being able to walk and chew gum at the same time, rather than having to walk a bit, stop, chew gum for a bit, stop, walk a bit more, stop, etc.
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In addition, to that analogy, consider the saying "two headsbare better than one." When you have two devs working together, they can get through their to-do list quicker and more efficiently than one dev doing everything alone.

[Q] Just bought TF101, My Adventure in Rooting & Jelly Bean

So, nabbed an Asus Transformer TF101 off Craigslist for $225. With keyboard. Feeling good about that.
Next question for semi-geeky me. To leave a decent Ice Cream Sandwich -- the ASUS-approved version -- on the tablet or to venture into the unknown world of rooting and custom Jelly Bean ROMs? Sheesh. I tried to resist. But... just... could... NOT...
Did I mention I didn't have a Windows PC to make rooting a bit easier? That left me with the need to do it via an iMac. I've gone and lost that url, but think it is one of the pages on this site.
From there, how do I pick a ROM? All sorts of threads, all of 'em messy (at least to the noob in the room). So I noted EOS got a lot of uptalk and went that route. After more than few false starts (manually typing in command lines kept introducing unintentional HUMAN ERROR into the mix) I got lift-off.
Did I mention my wife owns a Nexus 7 (one of the nicest little bits of hardware/software I know of... no no, the Nexus, not her!! She's stellar, but I digress).
In light of the Nexus' buttery feel, I was hoping for similar from my Asus Transformer. Well, not quite. Maybe the dual vs quad core chip has something to do with that. But I do very much like my larger (10") screen vs. her 7" and the keyboard... and Jelly Bean seems pretty darn nice even on a dual core tegra chip. Still hoping for a little more butter as the EOS nightly people do their thing. (I thank and thank them!!)
Oh. EOS answered my next problem before I got to it. How to overclock? Right in the setup I can do it.... tried all sorts of settings there and ended up with backing it off to only 1.2 (from 1.0) ghz. Not a game-player, just a blogger. Downloaded all my favorite apps -- kindle reader, YouVersion Bible, Skype, and so on. Oh, and of course some board games so I can play 'em with my Dearling.
Last night EOS suddenly updates my gapps. Hmmm. No big change, except maybe things are slightly snappier?
Questions I still have:
I installed an older (I think) booter/recovery module (or whatever the heck it is called). "Team Rogue" "Rogue XM Recovery 1.5.0 (CWM-Based Recovery v5.0.2.8)"
This recovery does not let me write to my external SD card (or even read from it) but will write / read to a USB stick if I mount it of course via their menu. My question:
Is this the newest and best boot/recovery tool? And if not, how and to what tool should I upgrade/switch?
Really enjoying my toy.

I've come up with a few more questions of a semi-general nature... but perhaps overly technical. If wrongly posted here, please advise...
Why does the Tegra 2 chip in my TF101 apparently change speeds and therefore frequencies? Using the setup app in EOS's version of Jelly Bean, one can alter two frequency / speed settings -- minimum and maximum -- and I'm thinking that is one frequency per core?
The reason that matters is because I'm experiencing an occasional spontaneous reboot. My settings were at 216 MHz (minimum) and 1200 MHz (maximum). I'm in over my head at this point as far as knowing if the lower value in particular is too low.
Anyone else have any thoughts?
Thanks.

shonkin said:
I've come up with a few more questions of a semi-general nature... but perhaps overly technical. If wrongly posted here, please advise...
Why does the Tegra 2 chip in my TF101 apparently change speeds and therefore frequencies? Using the setup app in EOS's version of Jelly Bean, one can alter two frequency / speed settings -- minimum and maximum -- and I'm thinking that is one frequency per core?
The reason that matters is because I'm experiencing an occasional spontaneous reboot. My settings were at 216 MHz (minimum) and 1200 MHz (maximum). I'm in over my head at this point as far as knowing if the lower value in particular is too low.
Anyone else have any thoughts?
Thanks.
Click to expand...
Click to collapse
The 216mhz is the slowest speed your CPU will go on both cores. This could cause reboots if too low because the operating system crashes because it cannot get everything done it needs / wants to. Try to up it to 500 and play around with the value so you dont get reboots, low mhz is better for battery when in deep sleep etc but can become unstable.
The 1200 mhz could also cause reboots if too high, however I don't think that sounds high, some go as high as 1500 or 1600 so that is probably not the issue.
The mhz, either min or max, applies to both cores equally on tegra 2.
Your wife's nexus has 4 cores and a single ninja core for background activity, so on hers, you can set min and max for the 4 cores and the ninja core seperately.
Hope that helps!

gunswick said:
The 216mhz is the slowest speed your CPU will go on both cores. This could cause reboots if too low because the operating system crashes because it cannot get everything done it needs / wants to. Try to up it to 500 and play around with the value so you dont get reboots, low mhz is better for battery when in deep sleep etc but can become unstable.
The 1200 mhz could also cause reboots if too high, however I don't think that sounds high, some go as high as 1500 or 1600 so that is probably not the issue.
The mhz, either min or max, applies to both cores equally on tegra 2.
Your wife's nexus has 4 cores and a single ninja core for background activity, so on hers, you can set min and max for the 4 cores and the ninja core seperately.
Hope that helps!
Click to expand...
Click to collapse
The EOS (#79) Rom's latest update seems to have helped some... along with my using SETCPU (which may or may not be more effficient but was suggested to me by another poster here).
I'm running with the very low 216mhz still, but have upped the max all the way to 1600mhz. So far, no spontaneous reboots like before even when running angry bird, a browser, and other junk. I used an app (SETCPU) to create a battery charging profile that allows for the tablet to run between 1200 and 1600 when plugged in and charging. More to see if it worked than because I have any real need for it.... and it did work just fine.
But I appreciate the comment re 216 being really low. And if it does exhibit strange behavior again, I'll monkey with the low setting to see if it helps.

[Discussion] I9500 CPU Tweaking

As you all know, S4 I9500 comes with a pair of 4 cores that can't run at the same time (as of now). When not on heavy duty, the four A7 1.2GHz cores are used, and that can sometimes be too slow for me. So I am using SetCPU to lock the frequency to 1.6GHz, but SetCPU hasn't been updated/optimized for the S4, as it only identifies the four A15 1.6GHz cores. Therefore I do not know what exactly it is doing, is it overriding Samsung's way of switching between CPU sets, or is it working at all? Any suggestions on tweaking the I9500 CPU? Please tell me if you know any CPU apps compatible with it.

iHackMyMI said:
As you all know, S4 I9500 comes with a pair of 4 cores that can't run at the same time (as of now). When not on heavy duty, the four A7 1.2GHz cores are used, and that can sometimes be too slow for me. So I am using SetCPU to lock the frequency to 1.6GHz, but SetCPU hasn't been updated/optimized for the S4, as it only identifies the four A15 1.6GHz cores. Therefore I do not know what exactly it is doing, is it overriding Samsung's way of switching between CPU sets, or is it working at all? Any suggestions on tweaking the I9500 CPU? Please tell me if you know any CPU apps compatible with it.
Click to expand...
Click to collapse
Locking the A15 chips on all the time would be a mistake. They use more power than the A7 cores, so battery would take a punch! I feel they handel the switch over pretty well, although CPUspy tells me that i've only used 1.6ghz for a few seconds over the course of a day. Although i've not run games or anything intensive.

hamdogg said:
Locking the A15 chips on all the time would be a mistake. They use more power than the A7 cores, so battery would take a punch! I feel they handel the switch over pretty well, although CPUspy tells me that i've only used 1.6ghz for a few seconds over the course of a day. Although i've not run games or anything intensive.
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Click to collapse
Thank you for your reply. My point is that we are relatively oblivious about what's going on with the cores since no software is specifically compatible with monitoring/configuring the chipset. The thing is, a lot of apps run very laggy and have low frame rates on S4, force GPU rendering fixes most of the problem, but the crackyness of flipping through eBook reader apps are unbearable. I hope in the future there will be apps/roms that can take control of this CPU with great potential.

iHackMyMI said:
Thank you for your reply. My point is that we are relatively oblivious about what's going on with the cores since no software is specifically compatible with monitoring/configuring the chipset. The thing is, a lot of apps run very laggy and have low frame rates on S4, force GPU rendering fixes most of the problem, but the crackyness of flipping through eBook reader apps are unbearable. I hope in the future there will be apps/roms that can take control of this CPU with great potential.
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There are no compatibility issues, all CPU related apps work perfectly.
I've made topics explaining this over a month ago before the phone was even released. Everything beyond 600MHz are the big cores, everything at and below are the little ones. The little ones are mapped at a virtual frequency at half of the real clock, so 600 means 1200.
There's nothing more to it than that.

AndreiLux said:
There are no compatibility issues, all CPU related apps work perfectly.
I've made topics explaining this over a month ago before the phone was even released. Everything beyond 600MHz are the big cores, everything at and below are the little ones. The little ones are mapped at a virtual frequency at half of the real clock, so 600 means 1200.
There's nothing more to it than that.
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Click to collapse
OMG thank you! That was very helpful

iHackMyMI said:
OMG thank you! That was very helpful
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Click to collapse
like andreilux said what you have to do is set the minimum frequency above 600(if you still need it ) so that a15 cores will be on all the time. If in case you switch on the a15 cores all the time do let us know about the avg battery drain.

My ze551kl Asus zenfone 2 laser's octa core isn't working correctly..

So as you can see by these screenshots only 4 of my eight cores are working.. Is there any way to fix this??
(Here's the album i mgur. c 0 m/ a /2FWDH
Any help would be extremely appreciated..

gyropepsi said:
So as you can see by these screenshots only 4 of my eight cores are working.. Is there any way to fix this??
(Here's the album i mgur. c 0 m/ a /2FWDH
Any help would be extremely appreciated..
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What makes you think that only 4 cores are working?
I don't know in the Android world, but in PCs the applications must be written expressly to use more than one core. And the SD 615 has 4 cores that runs at 1.7 MHz max and the other 4 at 1.0 MHz max, but the frequencies could be lowered by phone makers to increase battery duration.

BubuXP said:
What makes you think that only 4 cores are working?
I don't know in the Android world, but in PCs the applications must be written expressly to use more than one core. And the SD 615 has 4 cores that runs at 1.7 MHz max and the other 4 at 1.0 MHz max, but the frequencies could be lowered by phone makers to increase battery duration.
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Yeah but I had my phone on performance mode and it's using half of the cores, if the other 4 max at 1.0mhz then why are all games that I play (3D Wise) are slow? Is there any way I could fix it? Could overclocking via CPU managing apps (using root,) work in my situation?

gyropepsi said:
Yeah but I had my phone on performance mode and it's using half of the cores, if the other 4 max at 1.0mhz then why are all games that I play (3D Wise) are slow? Is there any way I could fix it? Could overclocking via CPU managing apps (using root,) work in my situation?
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Four cores are high-performance, and four cores are low-power. The performance cores suck up a lot of battery, so not for use with background tasks. The low-power cores are useless for pretty much anything but background tasks, so they're not for use with gaming, etc. The fact that your apps are only using four cores is normal.
Also, as for your gaming performance, I've actually done some testing on this and it turns out that on the ZE551KL, the GPU is way underpowered. No amount of overclocking can fix the abysmal GPU performance on the ZE551KL. This doesn't seem to happen on other models, either, so... yeah.

@gyropepsi: yes, that's correct, the eight cores are not "equal". You have four cores for general CPU use and another four for higher CPU use. They cannot be used in the same time, they get switched to save power. It's actually called "dual quad-core".
https://www.qualcomm.com/documents/snapdragon-615-processor-product-brief
Other manufacturers have one core for low processing and four for high processing. Those phones are doing great in tests but they really suck in daily usage.
@sensi277: I would't say abysmal performance, but yes, it seems to be lower than the Selfie in some tests. However it moves VERY good for a phone, 3D tests on phones are just for kids, to brag about their phones. Nobody does real gaming on a phone.

SoNic67 said:
@sensi277: I would't say abysmal performance, but yes, it seems to be lower than the Selfie in some tests. However it moves VERY good for a phone, 3D tests on phones are just for kids, to brag about their phones. Nobody does real gaming on a phone.
Click to expand...
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?
Except, I do real gaming on my phone. Or at least, I try to. Laser GPU holds back most games, though.

Why? You don't have a laptop, desktop? Phone gaming experience is horrid no matter what. No good controls, no immersion...
Sent from my ASUS_Z00TD using Tapatalk

Here is some info about big.LITTLE processing:
https://www.arm.com/products/processors/technologies/biglittleprocessing.php
Sent from my ASUS_Z00TD using XDA-Developers mobile app