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The Toshiba TG01 has built-in cpu scaling which is nice to ensure maximum speed (Maybe why it beats HD2 in benchmarks?)
Does HD2 have this (I doubt it as its never been mentioned) and if not, could it be ported from TG01?
Thanks!
Bump? Is nobody interest in this?
CPU scaling doesn't ensure "maximum speed"... if there was no CPU scaling the processor would ALWAYS be running at maximum speed. Scaling slows the processor down to save power when it's not being used as heavily.
This kind of support is likely to be at hardware/OS level, so I'm sure it's going to be on the Leo.
Does neuROM not to something like that? Slows down the processor when the display is off etc.
madindehead said:
Does neuROM not to something like that? Slows down the processor when the display is off etc.
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These sort of things tend to be specific to certain OS/CPU combinations. What worked on the old Qualcomm chips probably won't work on the Snapdragon. Maybe it will, but if not it would have to be modified to work with the platform.
Hello All
I've just found this line in Eugenia's ROM thread:
"*- CPU scales to a maximum of 1GHz instead of 712MHz"
Is it true that the CPU is limited to 712MHz in the shipping ROMs?
If Yes this may explain the lower performance compared to ACER F1 and Toshiba TG01
I was wondering this too
This could do with some deeper investigation by the experts amongst us...
If this is true, I can imagine the HD2 FLYING when we have custom ROMs!
Mine is pretty damn fast with ROM 1.48!
it's certainly a very bold claim, without any support to it..
I would like to see what hard evidence there is to support it,
as if it's true, then HTC have been illegally advertising the HD2 as 1ghz capable device..
fards said:
it's certainly a very bold claim, without any support to it..
I would like to see what hard evidence there is to support it,
as if it's true, then HTC have been illegally advertising the HD2 as 1ghz capable device..
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Suppose it is so, they did deliver a 1Ghz device, it's just limited for some reasons. First to my mind is battery life. Nevertheless, investigation is required and I hope kholk can clear some things for us since the seed was found in his thread.
fards said:
it's certainly a very bold claim, without any support to it..
I would like to see what hard evidence there is to support it,
as if it's true, then HTC have been illegally advertising the HD2 as 1ghz capable device..
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My point exectly!
The only evidence we have for now is the line I quoted from Eugenia's soon to be released WM 6.5.3 ROM
But I've been thinking for a long time that the lower performance of the HD2 compared to other Snapdragon devices is due to some form of power management lowering the CPU frequence!
fards said:
it's certainly a very bold claim, without any support to it..
I would like to see what hard evidence there is to support it,
as if it's true, then HTC have been illegally advertising the HD2 as 1ghz capable device..
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"HD2 as 1ghz capable"', does not mean it is running at 1GHZ but it could run at that speed, altough implied, but indeed it would be a misleading advert campaign
but i would like some proof too
tnyynt said:
Suppose it is so, they did deliver a 1Ghz device, it's just limited for some reasons. First to my mind is battery life. Nevertheless, investigation is required and I hope kholk can clear some things for us since the seed was found in his thread.
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The way its advertised means it would have to actually run at 1GHz, not just be a 1GHz model limited to less.
Unless its just a rubbish claim then i assume the ROM developer means limited to 712Mhz in certain situations, which might be for perfectly good reasons.
rovex said:
The way its advertised means it would have to actually run at 1GHz, not just be a 1GHz model limited to less.
Unless its just a rubbish claim then i assume the ROM developer means limited to 712Mhz in certain situations, which might be for perfectly good reasons.
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I don't agree: a software underclocked 1GHz CPU is still a 1GHz CPU. The chip is the same.
Not when the phone claims its a 1GHz CPU, which it does. The speed is not the name, its a physical attribute of the CPU that only exists if its actually running at that speed. This has been covered by EU law before, HTC cannot legally sell a phone running a CPU capable of 1GHz and claim its 1GHz if it never reaches that speed.
I suspect this ROM will just force full throttle all the time, which can only be bad for the battery life, but since we cannot flash it yet we dont know the effects, or if it even works at all.
HTC is advertising the HD2 machine as "1GHz capable device", but not as "1GHz device" that it's different.
It's barely legal.
Anyway, there IS evidence. And you can see it using TCPMP and doing some tests using the device's CPU
On this purpose, we've been talked on the xda-devs IRC channel about that, and I'm saying what I'm saying ONLY based on my tests: try to run TCPMP and see the CPU freq that it's reporting: 396-412MHz!
Use a program that is HEAVY on CPU load and run it in background (make sure that it won't close and that it will continue its work even in background) then see che CPU freq in TCPMP: you'll reach a maximum of 712MHz.
Another evidence of this statement is the performance of other SnapDragon machines like the Toshiba TG01.
P.S.: I think that the HTC HD2 will reach its 1024MHz frequency only when playing with the GLES2.0 Qualcomm test game, ELECTOPIA.
Electopia takes the device in EXCLUSIVE MODE, so it's possible that its frequency will be raised to 1GHz.
Its also quite possible that the CPU speed reporting programs do not support the snapdragon properly and report the wrong information.
The phone itself says the CPU speed is 1GHz in the phone hardware properties, this is a claim of speed, not name or theoretical capabilities.
So we're talking about dynamic freq adjustment on the go depending on processing power needed, similar to AMD's Cool and Quiet concept?
tnyynt said:
Suppose it is so, they did deliver a 1Ghz device, it's just limited for some reasons. First to my mind is battery life. Nevertheless, investigation is required and I hope kholk can clear some things for us since the seed was found in his thread.
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doesn't work like that does it though? they advertise the device running at 1ghz and it doesn't then that's false advertising..
If (and I doubt looking at the benchmarks) it ran at 700 ish mhz (maximum) then they should have advertised it as such
they don't mention "1ghz capable" here.. They clearly state its CPU processor Speed (not theoritical or otherwise) as
CPU Processing Speed
1GHz Snapdragon™ processor
http://www.htc.com/uk/product/hd2/specification.html
and Overview
HTC HD2 delivers an experience your senses have been waiting for. The unprecedented 4.3-inch pixel-packed display is stunning. The world’s first capacitive touch technology on a Windows® phone along with 1 GHz processing power ensure a smooth and lightning-fast response to the lightest touch of your finger
It's like stating it has a 4.3 inch screen and then actually finding it was 3.3 inches because the edge was covered in protective cover..
http://www.htc.com/uk/product/hd2/overview.html
not saying this is true at all.. we all know cpus have been scaling for a while, and the HD2 certainly scores high enough in integer testing..
but if that's what it is then they are likely to be in trouble over this.
anyway Kolhk you claim to have it able to scale up, how have you done that?
this way we can try to replicate it
rovex said:
Its also quite possible that the CPU speed reporting programs do not support the snapdragon properly and report the wrong information.
The phone itself says the CPU speed is 1GHz in the phone hardware properties, this is a claim of speed, not name or theoretical capabilities.
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If it reports the frequencies of other snapdragon devices correctly it shouldn't be an issue. And to they can't advertise the device as having a 1Ghz processor unless it runs at that speed(would it be ok for amd and intel to sell 4Ghz chips if they actually run at 2+Ghz, just because that would be their theoretical maximum?). The processor is probably, as mentioned earlier, just scaling back when it isn't used to 100%.
fards said:
they don't mention "1ghz capable" here.. They clearly state its CPU processor Speed (not theoritical or otherwise) as
CPU Processing Speed
1GHz Snapdragon™ processor
http://www.htc.com/uk/product/hd2/specification.html
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...and I bet if there's a text on the chip inside the device, it states the same on it. As far as I see things, HTC has a device with a 1G Snapdragon CPU which I bought. CPU inside, as described.
Toss3 said:
If it reports the frequencies of other snapdragon devices correctly it shouldn't be an issue. And to they can't advertise the device as having a 1Ghz processor unless it runs at that speed(would it be ok for amd and intel to sell 4Ghz chips if they actually run at 2+Ghz, just because that would be their theoretical maximum?). The processor is probably, as mentioned earlier, just scaling back when it isn't used to 100%.
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Actually AMD sells processors like this: AMD Athlon 64 3000+ which actually runs at 1800.
A CPU speed programs needs to support the way the CPU is actually controlled, not just the CPU, so basically the clock generator as well. If The HD2 uses a different method from the F1 or TG-01 then the program wont work.
Any info out there about this baby overclocked? Will standard overclocking tools work or does new software need to be devloped?
To overclock the cpu I think you'd need a custom kernel that allows it first. But if the bootloader is locked then custom kernels can't be flashed.
You won't have to worry about performance issues with tegra 2 for while though .
As if you needed to run Crysis on it?
Tough crowd this morning!
This site is here for getting the most out of devices. Rooting and removing bloatware increases performance. Customized ROMS increase perfomance and user experience. I merely asked about another tool for optimizing a device.
bee55 said:
To overclock the cpu I think you'd need a custom kernel that allows it first. But if the bootloader is locked then custom kernels can't be flashed.
You won't have to worry about performance issues with tegra 2 for while though .
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Haha,don't underestimate the people who hang out at XDA and other dev sites, we find ways to work these phones to the bone. I know for myself I will have probably 100 apps downloaded and installed in the first 24 hours, and will be testing its limits.
You have the best cpu in a phone ever and you want to over clock. Wow. Why?
Sent from my SAMSUNG-SGH-I897 using Tapatalk
snapdragon was the best @ one time and most roms had overclock built in!
Snapdragon is the worst CPU for 1ghz. Even the TI OMAP is better than Qualcomm. The main reason wont buy anymore HTC phones is because of Qualcomm and there ****ty performance in phone in comparison to Samsung, TI, and now Nvidia.
Recon Freak said:
snapdragon was the best @ one time and most roms had overclock built in!
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Sent from my SAMSUNG-SGH-I897 using Tapatalk
Hence why he said 'at one time'.
Sent from my SGH-I897 using XDA App
AllTheWay said:
Snapdragon is the worst CPU for 1ghz. Even the TI OMAP is better than Qualcomm. The main reason wont buy anymore HTC phones is because of Qualcomm and there ****ty performance in phone in comparison to Samsung, TI, and now Nvidia.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
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Click to collapse
Snapdragon is far from being the worst CPU, clock for clock. First of all, Snapdragon is not a CPU, is a SoC (System on a Chip), and the CPU core inside Snapdragon is called Scorpion. Scorpion is neither a standard ARM Cortex A8 nor A9 core unlike the CPU core inside the Hummingbird/TI OMAP/Nvidia Tegra. But it can be thought of as among the same class as Cortex A8 CPUs. The Scorpion has some big advantage over standard Cortex A8 core in some areas (e.g. floating point). The reason why many found the first generation (in Nexus One and HTC Desire) to be "slow" was that they look only at composite benchmark like Quadrant and/or 3D games. The first generation of Snapdragon has a rather dated GPU (Adreno 200) in it, and Adreno 200's 3D performance is honestly, bad. The second generation Snapdragon (Desire Z/G2, Desire HD) uses a much faster GPU, Adreno 205, making the Snapdragon 3D performance on par with Hummingbird and other current generation SoC.
So before you go again saying Snapdragon is the slowest "CPU", go do some reading, and think, before saying. Here is some good reading for you:
http://www.anandtech.com/show/4144/...gra-2-review-the-first-dual-core-smartphone/4
http://www.anandtech.com/show/4165/the-motorola-atrix-4g-preview/5
AllTheWay said:
Snapdragon is the worst CPU for 1ghz. Even the TI OMAP is better than Qualcomm. The main reason wont buy anymore HTC phones is because of Qualcomm and there ****ty performance in phone in comparison to Samsung, TI, and now Nvidia.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
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Click to collapse
if you blindly trust benchmarks the Scorpion CPU in the 2nd gen snapdragons are quite fast... my G2 benchmarks at...
Quadrant: 2,700ish
Linpack: 52.69
Sunspider:2,257
Neocore:57
infact, all of those benchmarks either match, or surpass the Atrix 4G.
No problems here with my snapdragon 1Ghz. linpacks constant 42+
Now that the phone is rooted can we use setCPU to underclock it so to save battery.
Or does setcpu not support dual core.
Also is what I said above true. if we have root we can underclock without putting custom kernels.
The nvidia tegra 2 kernel does not have a simple method to modify the CPU freq table. The dev working on the gtablet kernel would be a good resource to ask, his name is Pershoot. From my understanding he would have to backport the original ARM scaling which is not trivial in the least.
Maybe someone can figure out another way.
tsekh501 said:
As if you needed to run Crysis on it?
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Actually yeah, and who wouldn't? That's probably enough to get you instantly laid in some countries.
Arkasai said:
Actually yeah, and who wouldn't? That's probably enough to get you instantly laid in some countries.
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Serious bragging rights right there.
Guy 1: "Damnit, I just got Crysis 2, and I can't even run Crysis 1 on my computer."
Guy 2: "Yeah well I can run it on my cell phone...look."
Guy 1's Girlfriend: "Take me, now, Guy 2!."
You get the picture.
Sorry to go off-topic there. But I do have a question. Isn't the Tegra 2 ARM9 based? And there's nothing wrong with wanting to push a device to it's limits. Overclocking is fun.
dandmcd said:
Haha,don't underestimate the people who hang out at XDA and other dev sites, we find ways to work these phones to the bone. I know for myself I will have probably 100 apps downloaded and installed in the first 24 hours, and will be testing its limits.
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lol same here. I have about 45 installed on my Galaxy Tab and all of them will be installed on the Atrix immediately and tested. I plan on testing every single game I can find on the market lol biggest being Dungeon Defenders for now...runs a bit slow on the Galaxy Tab and I've heard on Tegra2 it runs *GREAT*.
AllTheWay said:
You have the best cpu in a phone ever and you want to over clock. Wow. Why?
Sent from my SAMSUNG-SGH-I897 using Tapatalk
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Click to collapse
Because you can make it better. Why settle for less? My captivate is fast and does everything I need it to do at 1ghz but I have it at 1.3 now; and under volted.
Why? Because it is better.
Captivate 2.2.1 Paragon
Is there a simple way to backup all the apps installed on my phone so I can just dump them instantly into a new phone? Preferably without having to hit "install" for every app on the market.
wow, its a dual core processor and you want OC... ugh, get out... lol
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.
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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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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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OMG thank you! That was very helpful
iHackMyMI said:
OMG thank you! That was very helpful
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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.
Hey,
Following a thread I read recently, I have a question...
I'm talking about the exynos version...
When the screen is on and the device is idle, should any of the cores be on "stopped" state? (as it happens in the quallcom version if I remember correctly from my i9505...)
On my n910c, on cpu z app, none of them is stopped.
On idle, 4 cores are on 400 and 4 on 700.
I think I read it somewhere that that's the idle state in this soc and that it's cores are never on stopped state (when screen is on) but I'm not sure and I can't seem to find it....
How it should behave?
Thanks.
Someone with Exynos...
How it behaves in your CPU Z app?
Thanks
gabi11 said:
Someone with Exynos...
How it behaves in your CPU Z app?
Thanks
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Mine does the same as yours. I have the N910U.
Silverblade.nz said:
Mine does the same as yours. I have the N910U.
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10x mate!
Yeah, this is probably the way it works... :good:
I also found what I mentioned I read in the past.
http://forum.xda-developers.com/showpost.php?p=56328044&postcount=784
gabi11 said:
10x mate!
Yeah, this is probably the way it works... :good:
I also found what I mentioned I read in the past.
http://forum.xda-developers.com/showpost.php?p=56328044&postcount=784
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yeah that's how Samsung implemented, I think it has to do with the multi core something, if im not wrong the first Big.Little cpus were running only 4 at the time then the other 4 will kicked in when needed, but it was causing overheating issues I believe and it was nothing good, then they came out with the new one which the 8 cores will run at all times, and unbelievable it worked and for my experience with exynos this is the best Exynos chip yet, as well as the one used on the galaxy s6, its basically the same as 5433 but the new one is based on a 14nm soc, cheers:fingers-crossed:
In my cpu z stats and in other cpu monitor apps like cpu spy, a57 frequencies never go higher then 1300 ghz, It never goes does even when playing games or multitasking, does anyone else have this? I was thinking something wrong with my device But seems like antutu benchmarks are about 50k anyway
Vichenec said:
In my cpu z stats and in other cpu monitor apps like cpu spy, a57 frequencies never go higher then 1300 ghz, It never goes does even when playing games or multitasking, does anyone else have this? I was thinking something wrong with my device But seems like antutu benchmarks are about 50k anyway
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Does you phone lags? it feels slow? or something? if not don't even worry about that, the A57 is a powerful processor, remember most of the games only run on 1080p if lucky, also remember all phones perform differently, all cpus, gpus, kernels, don't worry your phone is fine mate, cheers:fingers-crossed:
yoniinfante said:
Does you phone lags? it feels slow? or something? if not don't even worry about that, the A57 is a powerful processor, remember most of the games only run on 1080p if lucky, also remember all phones perform differently, all cpus, gpus, kernels, don't worry your phone is fine mate, cheers:fingers-crossed:
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Click to collapse
No, it works fine but we on XDA are not happy with just FINE, that's why we dig forums get new info, tweak ad try new things
But that's the thing does everyone has similar observations or is it specific for my device? if you install Cpy Spy/BBS from app store and use it for some time, does it even has frequencies higher then 1300ghz ?