Database Users

Overclock?

Is anyone aware of over clocking on the hummingbird? 45nm process cpu should be an advantage.
Posted from a T-mobile G1 cyanogen ROM. This platform has reached its limits, my contract has reached its end, t-mo and HTC have failed to produce a suitable replacement. Epic here I come!
5years+ with t-mo.

Overclocking a 1GHz processor is hardly worth it, unless its used with underclocking for battery life.
I'm really sad there won't be any Cyanogenmod for any of the Samsung phones. I'm hoping he has a change of heart.... Otherwise I'm just looking for a good rom.
T-Mobile has horrible coverage in my area. Need me some epic!

We can go from 1000 MHz to 1300 MHz with 65nm CPU.Since its a 45nm CPU we should be able to get 300 to 1000 more MHz with a kernel with voltage increase. The galaxy s 2 has 2000 MHz CPU with 45nm processor.

Cyanogen
Is it confirmed that cyanogen won't do samsung? This seems to be the most widely distributed Android superphone ever.

NeonMonster said:
I'm really sad there won't be any Cyanogenmod for any of the Samsung phones. I'm hoping he has a change of heart.... Otherwise I'm just looking for a good rom.
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Where did you get this? You should post a source link if you're going to make such statements.
There are already developers working on CM6 for the Vibrant and the Captivate: http://forum.xda-developers.com/showthread.php?t=729364
Once a member of the team has an Epic, we'll have a port also.

shep211 said:
We can go from 1000 MHz to 1300 MHz with 65nm CPU.Since its a 45nm CPU we should be able to get 300 to 1000 more MHz with a kernel with voltage increase. The galaxy s 2 has 2000 MHz CPU with 45nm processor.
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Are we going to be able to get past 1.6 ghz ?
Sent from my HERO200 using XDA App

I bet we will pretty easily, but nobody really knows at this point. The only similar processors are in the iPad, iPhone 4 and DROID X, and all those devices are locked down pretty hard. I think the Galaxy is going to show whether or not this chip can actually be overclocked.
I wouldn't be too suprised to see 2ghz, although I think the most anybody would actually want on their phone is about 1.6.

karnovaran said:
Where did you get this? You should post a source link if you're going to make such statements.
There are already developers working on CM6 for the Vibrant and the Captivate: http://forum.xda-developers.com/showthread.php?t=729364
Once a member of the team has an Epic, we'll have a port also.
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Argh. Made me have to go searching through his twitter timeline.... -__-;;;
Everyone is asking about CM on new Samsung phones.. I don't have any plans for it myself, but I'd love to see it.
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http://twitter.com/cyanogen/status/18500141823
Now, I know that doesn't mean CM WON'T be on the Epic, (Which i'm glad some devs are taking on porting it to the Galaxy lineup) but what I said, was referring to when he stated he "didn't have any plans for it".
Maybe I took that statement too literally, but if that is untrue, having CM on the Epic would make it just about perfect!

bycoo222 said:
Are we going to be able to get past 1.6 ghz ?
Sent from my HERO200 using XDA App
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Seems like 1.6 might be pushing the limits.
I for one will attempt to fork CM my self for the Epic once we have root and recovery.

Kcarpenter said:
Seems like 1.6 might be pushing the limits.
I for one will attempt to fork CM my self for the Epic once we have root and recovery.
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Why is 1.6 ghz pushing the limit? I did some research and it seems the Motorola droid can go to 1.3 or 1.5 ghz without issues and is potentially going to be OCed to 1.8ghz in the not too distant future, if it hasn't been already. Now if you take into account that the Droid uses the old TI OMAP 3430 processor, which is a Cortex A8 architecture processor made on the 65nm process and the Hummingbird processor in the Galaxy S phones is also a cortex A8 but made at the 45nm process, it sounds like 1.6ghz is definitely doable, maybe on the high end for reasonable every day use, but 2 ghz definitely sounds feasible to me at this point. However only time will tell. This definitely justifies the idea of a 2 ghz phone being released before the end of the year though. It will just require high binned processors.

Cyanogen strikes me as the type of guy where if the phone was sitting in front of him he would be helpless to resist tinkering with it.
We may want to start a pool to buy him one.

ben7337 said:
Why is 1.6 ghz pushing the limit? I did some research and it seems the Motorola droid can go to 1.3 or 1.5 ghz without issues and is potentially going to be OCed to 1.8ghz in the not too distant future, if it hasn't been already. Now if you take into account that the Droid uses the old TI OMAP 3430 processor, which is a Cortex A8 architecture processor made on the 65nm process and the Hummingbird processor in the Galaxy S phones is also a cortex A8 but made at the 45nm process, it sounds like 1.6ghz is definitely doable, maybe on the high end for reasonable every day use, but 2 ghz definitely sounds feasible to me at this point. However only time will tell. This definitely justifies the idea of a 2 ghz phone being released before the end of the year though. It will just require high binned processors.
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I think 2 ghz is feasible as well since the are already pushing the new cpu to 2 ghz in the galaxy s 2. It really all depends on the cooling system in the epic 4g. If it can cool the cpu enough i see no reason why we cant hit 2 ghz. I just hope they didnt screw up the cooling with the added keyboard. It would suck to see all galaxy s lines running at 2 ghz but the epic held back by the changes for the keyboard.

NeonMonster said:
Argh. Made me have to go searching through his twitter timeline.... -__-;;;
http://twitter.com/cyanogen/status/18500141823
Now, I know that doesn't mean CM WON'T be on the Epic, (Which i'm glad some devs are taking on porting it to the Galaxy lineup) but what I said, was referring to when he stated he "didn't have any plans for it".
Maybe I took that statement too literally, but if that is untrue, having CM on the Epic would make it just about perfect!
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Ha, no worries. I saw that tweet too and came away thinking, "he's not going to rush out and buy the phone, but he's more than willing to help another developer port CM to it."
I don't think there should be any concern about whether or not CM will be ported. The big question will be what complications arise from the extra features of the Epic, like the keyboard, 4G radio, LED, etc.

karnovaran said:
Ha, no worries. I saw that tweet too and came away thinking, "he's not going to rush out and buy the phone, but he's more than willing to help another developer port CM to it."
I don't think there should be any concern about whether or not CM will be ported. The big question will be what complications arise from the extra features of the Epic, like the keyboard, 4G radio, LED, etc.
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There is cm6 for the evo so there should be no issue with 4g by the time the epic is out. cm6 for the evo is in beta but runs good on my evo.

Pops_G said:
Cyanogen strikes me as the type of guy where if the phone was sitting in front of him he would be helpless to resist tinkering with it.
We may want to start a pool to buy him one.
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Thats a good idea. I am going to ask him if we got him a epic if he would work on cm6 for us. I can pitch in $50 or more.

shep211 said:
Thats a good idea. I am going to ask him if we got him a epic if he would work on cm6 for us. I can pitch in $50 or more.
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Yeah! I was actually thinking this too awhile ago.
If we got a donation up and running, I could donate maybe 20-30 bucks toward getting him a Epic IF he promises to make a super awesome rom for it!

ben7337 said:
Why is 1.6 ghz pushing the limit? I did some research and it seems the Motorola droid can go to 1.3 or 1.5 ghz without issues and is potentially going to be OCed to 1.8ghz in the not too distant future, if it hasn't been already. Now if you take into account that the Droid uses the old TI OMAP 3430 processor, which is a Cortex A8 architecture processor made on the 65nm process and the Hummingbird processor in the Galaxy S phones is also a cortex A8 but made at the 45nm process, it sounds like 1.6ghz is definitely doable, maybe on the high end for reasonable every day use, but 2 ghz definitely sounds feasible to me at this point. However only time will tell. This definitely justifies the idea of a 2 ghz phone being released before the end of the year though. It will just require high binned processors.
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Well put.

THere will not be 2ghz phones for a very long time. Apple choose to clock the iPhone 4 at around 700mhz even though it is fully capable of doing 1GHz. There are going to be power consumption concerns, the galaxy and droid x cna get away with 1ghz because of the large batteries but smaller phones will probably need to be underclocked. A phone running at 2ghz will use significantly more than twice as much power as the galaxy s, and that just isn't practical on a phone.
Snapdragon seems to be able to achieve higher clock speeds, but it also seems to be less efficient per clock, judging by how the droid x and galaxy s are both faster than the identically clocked EVO and N1. So maybe we will see snapdragons in the 1.5ghz+ range, but that doesn't necessarily mean that they will be significantly, if at all, faster than the 1ghz OMAP/Hummingbird processors we have already.

drizek said:
I bet we will pretty easily, but nobody really knows at this point. The only similar processors are in the iPad, iPhone 4 and DROID X,
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I thought the ONLY thing similar was the initial clock speed, other than that they were a TOTALLY different architecture, as evidenced by 3d performance (iPad = 20 million tringles/second, Galaxy S = 90 million triangles/second.)
I think the processor differencve was like comparing P4 tech to core I7 tech, which leads me to wonder why would you overclock it since the performance is alredy 4 times that of the pther phones.

Like what some of the earlier posters said, would like the ability to underclock the Hummingbird to extend the battery life. Since its performance is way better than the Snapdragon, its like having a HTC Incredible/EVO but have extra 10/20/30% battery life.

Desire z processor is not that power

All people calming that desire z processor @800mhz scores better in benchmarks than overlooked snapdragon ,this is not true when Iam on desire z Rom I underclocked my hd2 to 806.4 mhz (same as dz) and I got 1512 score from the first time same as Dz with its perfect GPU , SO OUR CPU PERFORMS BETTER ( you can try it yourself ) Iam not a liar ,I think the improved performance is in THE ROM itself not in the processor
Sent from my HTC HD2 T8585 using XDA App

You have to remember that the benchmarks (quadrant, linpack etc) are all synthetic, like 3dmark back in the day for pc graphics cards. There are so many things that can affect your scores both adversely and positively that they should only be used as a very rough guideline and nothing more. Direct comparisons are all but pointless.

Reno_79 said:
You have to remember that the benchmarks (quadrant, linpack etc) are all synthetic, like 3dmark back in the day for pc graphics cards. There are so many things that can affect your scores both adversely and positively that they should only be used as a very rough guideline and nothing more. Direct comparisons are all but pointless.
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Iam talking to people who take quadrant as a prove for performance , I know that its results are not accurate
Sent from my HTC HD2 T8585 using XDA App

I think you should use Quadrant Advanced to compare cpu scores, I know I/O scores help our HD2 a lot.

Even software affects quadrant cpu scores so it is not reliable. Quadrant benchmarks h264 decoding performance as part of cpu benchmark and for example having stagefright driver enabled inflates cpu score by double! Disable stagefright and your cpu will score 400 instead of 800. (in quadrant "advanced") if you use better software decoder it will affect cpu score by large amount. And rebenchmarking produces higher results because of caching. Mips calculating benchmarks are better (like the one in setcpu)
Sent from my HTC HD2 using XDA App

That might be true but the Desire Z/G2 has a co-processor for apps that we don't have.
Sent from my HTC HD2 T8585 using XDA App

psykick5 said:
That might be true but the Desire Z/G2 has a co-processor for apps that we don't have.
what is the coprocessor , desire z have same scorpion core like hd2 only with 45n.m tech
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I'd say it has a better processor... it just got overclocked to 1.4 Ghz.
http://www.androidcentral.com/t-mobile-g2-overclock-gets-even-better-and-released

wow that makes me want it

RobertsDF said:
I'd say it has a better processor... it just got overclocked to 1.4 Ghz.
http://www.androidcentral.com/t-mobile-g2-overclock-gets-even-better-and-released
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Your battey will say thank you. Your chipset too. This phone is not made for such things. That won't last very long I think. But it is quite impressive, seems to be veeeeery fast

JanssoN said:
Your battey will say thank you. Your chipset too. This phone is not made for such things. That won't last very long I think. But it is quite impressive, seems to be veeeeery fast
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+1.. imagine, a 75% overclock?? i wonder if the carpet has any burn marks on them when he lifts the phone up, or if his face has any burn marks that's why he's not showing it up on the cam.. lol.. because a 75% OC on a very small device where there is not enough room to breathe, the whole phone would be like a big heatsink if used for a period of time.. and i guess that's also the reason why HTC slapped the 800mhz cpu instead of the 1ghz.. i'm our HD2 can achieve such high of an OC, but it wouldn't be adviceable as it would melt/crack the solder joints on the GPU and/or processor of the phone at that kind of heat.. and i believe that the GPU and apllication coprocessor that they're talking about on the G2 is just a marketing ploy to justify it's price tag.. maybe to cope up with the build price since there are moving parts (hinge) and the hard keyboard.. even the guy at the tmobile store told me that the G2 isn't fast at all.. he said it's nothing close to evo or the nexus one as some people and websites claims.. funny when he asked my what kind of phone do i have.. i pulled my HD2 and showed it to him.. he was surprised to see Android on it and asked me if he could play with it.. so i let him.. and after playing with it for a while, he advised me to wait for the new phone device that's supposed to come out before the end of the year.. he even told me that getting a G2 would be the same as downgrading as he feels that my HD2 is way way faster than the G2.. i told him i'm thinking about getting the vibrant because the port for our HD2 is nothing close to being perfect and that it's still running from the SD card.. again he discouraged me and told me to wait for the next phone device to come.. so i guess that's what i will do..

I'm surprised that you were in store and didn't test drive G2 for yourself, are you sure he is sale person?, he didn't sound like one.

justwonder said:
I'm surprised that you were in store and didn't test drive G2 for yourself, are you sure he is sale person?, he didn't sound like one.
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as a matter of fact i did.. that's actually one of the main reason why i went to the store, as i've been reading a lot of good things on G2.. i went there to compare the G2 with the samsung vibrant.. but through the end, i didn't like the G2's performance despite the fact that it's the only phone right now on TMo that supports the HSPA+.. and yes he's a sales person.. i was surprised as well when he told me about the upcoming desire HD.. but that didn't happen until i showed my HD2 to him and let him play with it for a while.. maybe he knows that i'm a phone enthusiast and that i might just end up returning the phone within the 30 days period after playing with the G2.. who knows?? i think the G2 is wayyy overrated.. it performs within it's specs, nothing special..

RobertsDF said:
I'd say it has a better processor... it just got overclocked to 1.4 Ghz.
http://www.androidcentral.com/t-mobile-g2-overclock-gets-even-better-and-released
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Desire Z overclocks to exactly same speeds. Record OC is 1470MHz.
So they are same CPUs, clocked at different speeds. Bigger screen = higher clock to handle bigger screen.
EDIT: Desire Z overclocks to 1.7GHz at 1400mv
EDIT: Desire Z overclocks to 1.9GHz at 1500mv

Tegra 2 overclocking?

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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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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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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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

Fully working JIT

I know this has been discussed but will samsung or google ever do this? I believe that it isn't a hardware limitation because up until 2.2 the hummingbird was faster and all native benchmarks show the same. Who needs another phone if they get this working our phone would perform as well as a tegra 2 imho.
Sent from my SCH-I500 using XDA App

I lol'ed at this one

JIT isn't that magical...is it?
Sent from my Fascinate with CM7 Gingerbread

No its not but with some overclocking and the great devs here I'm sure it would pick up considerably. Sgs 2linpacks at 47 or so stock. Second gen snapdragons are pretty fast. Also I don't think outside of emulators there will be anything that will really push the hummingbirds gpu for a while yet.
Sent from my SCH-I500 using XDA App

You can't compare us to snapdragons. Linpack doesn t like hummingbirds. Your logic is that's because they have a high number we are worse? Well buddy does your phone seem 1/8 times slower then other phones? Mine doesn't.
Sent from my SCH-I500 using Tapatalk

No it doesn't but it's just a shame that it isn't optimized for our phones. All cpu benchmarks tell the same story when it comes to cpu performance. The reason we don't score over 3000 in quadrant or as high as other phones in productivity in smartbench it's because of the jit. Take.everyone back to 2.1 and see who's on top. My hope is with the nexus phone having a hummingbird sooner or later this will happen.
Sent from my SCH-I500 using XDA App

I dont give a Jit
Sent from my SCH-I500 using XDA App

stephenj37826 said:
No it doesn't but it's just a shame that it isn't optimized for our phones. All cpu benchmarks tell the same story when it comes to cpu performance. The reason we don't score over 3000 in quadrant or as high as other phones in productivity in smartbench it's because of the jit. Take.everyone back to 2.1 and see who's on top. My hope is with the nexus phone having a hummingbird sooner or later this will happen.
Sent from my SCH-I500 using XDA App
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The Nexus S has JIT with Gingerbread doesn't it? I thought JIT scored higher on snapdragons because it was first developed on the Nexus One.
Sent from my Fascinate with CM7 Gingerbread

ya seriously, like the hummingbird processes over 90 million triangles a second, thats freakin ridiculous, and i feel like the phone is underperforming, especially when other phones can do only around 22 million a second.. like wtf yo

This OP is a moron. Has no idea what the [email protected]$! he is talking about. We have JIT, we have a hummingbird cpu, we have a fast freaking phone. A number means ****. Can we get a mod close this?

You're a moron if you think we have a compiler built for the hummingbird processor. I guess you well never buy another phone seeing how this one is as fast as you'll ever need. Righhhhhhttttt LoL. It would help everything including battery life. The more time the cpu stays at higher clock speeds the more battery it uses. If you don't have something constructive to say just shut up. Also if you don't like the topic why the hell did you even click on it? And he calls me a moron lmao.
Sent from my SCH-I500 using XDA App

I <3 flaming. Can't wait till ashasaur gets his computer back up.
Sent from my SCH-I500 using XDA App

TheSonicEmerald said:
The Nexus S has JIT with Gingerbread doesn't it? I thought JIT scored higher on snapdragons because it was first developed on the Nexus One.
Sent from my Fascinate with CM7 Gingerbread
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No. Linpack is a pipeline test. This is where Snapdragons excel, because, they have a deeper, 128 bit pipeline, versus the 64 bit pipeline of all the other Cortex A8 CPUs. The Hummingbird excels in "integer" performance, and the Snapdragon excels in "float point operations." In normal use, the difference in performance between a Hummingbird and 2nd gen Snapdragon is nonexistent. You really only notice under specific circumstances, such as benchmarks. And the OMAP3 is just slow and doesn't excel in anything.

GoogleAndroid said:
No. Linpack is a pipeline test. This is where Snapdragons excel, because, they have a deeper, 128 bit pipeline, versus the 64 bit pipeline of all the other Cortex A8 CPUs. The Hummingbird excels in "integer" performance, and the Snapdragon excels in "float point operations." In normal use, the difference in performance between a Hummingbird and 2nd gen Snapdragon is nonexistent. You really only notice under specific circumstances, such as benchmarks. And the OMAP3 is just slow and doesn't excel in anything.
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Ah ok, thanks. I learn something everyday
Sent from my Fascinate with CM7 Gingerbread

GoogleAndroid said:
No. Linpack is a pipeline test. This is where Snapdragons excel, because, they have a deeper, 128 bit pipeline, versus the 64 bit pipeline of all the other Cortex A8 CPUs. The Hummingbird excels in "integer" performance, and the Snapdragon excels in "float point operations." In normal use, the difference in performance between a Hummingbird and 2nd gen Snapdragon is nonexistent. You really only notice under specific circumstances, such as benchmarks. And the OMAP3 is just slow and doesn't excel in anything.
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Thanks for the useful information.
Sent from my SCH-I500 using XDA App

nevermind.
Sent from my brain on channel 64!

Benchmarks mean nothing between even the same model of device. They're only good for measuring changes with software or settings.
JIT either works or it doesn't. There is no "fully implemented" for JIT in Dalvik. It's either on or off.
Sent from my SCH-I500 using Tapatalk

stephenj37826 said:
Thanks for the useful information.
Sent from my SCH-I500 using XDA App
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You're welcome. I was always curious as to why the Snapdragons scored so highly in Linpack, and so I looked into it, and that's what I found out.

found this here http://phandroid.com/2010/05/26/going-deeper-with-android-2-2s-jit-compiler/
Russell Troywest 1 comment collapsed Collapse Expand
@GODCYPH
Yes, you're right, the JIT would need to be coded to know the 'tricks' are there. I have absolutely no idea how the android JIT is designed (although if it's part of the open source package I might try and find some time to go find out). I suspect it doesn't do anything too clever, but it does need to know what processor it is compiling for to do its job so I guess the information is available to it...
Again, I'm not a JIT designer, I have enough knowledge of how they work to be dangerous and not much more
ALSO THIS
The whole idea of using a VM was that code could be run in virtually any instruction set (ie x86) without the need for recompiling. In essence, it compiles at runtime, basically the VM is an Interpreter. If a JIT is capable of utilizing a specific instruction set's "tricks", does that mean the JIT must be optimized for the processor it is running on? Wouldn't that mean a different JIT for every different processor/instruction set that would be made available?
Wouldn't a our processor be classified as different? Seeing as the nexus one is snapdragon.

Unless you're doing extreme HPC implementations where you absolutely need to squeeze every single bit of performance out of every possible configuration, you're not going to be coding, or even compiling for specific processors. You code for architectures and instruction sets.
Hummingbird and Snapdragon are both Arm Cortex v8 processors. When coding or compiling, you code for that.
The JVM, and a step further with the JIT take partially compiled code that is architecture agnostic and translate it to architecture-specific machine code at execution time. It's a step between scripting (JavaScript, PHP, perl, etc) and native compiled code (C, C++, etc).

All aboiut OVERCLOCKING thread.

I wonder if we really "need" to overclock this beastly CPU of ours? Hell, even if i underclock to 1Ghz, most task if not all are done fast, really fast. Talking about games? Modern FPS games are driven by both CPU and GPU and thus doesnt require much of horsepower of the CPU. Im confuse why numbers of people here are crying "why they are not stable @ 1.8Ghz"? ... Even if you set it @ 1.8Ghz max, our phone will barely reach this clockspeed because other cores will kick-in in less than maximum speed of the primary core (if im right?) ... Is it just for Benchmark figures? Good figures doesnt equates to good performance and we all know that... Can you really sacrifice "Stability" for the sake of some "Ego-driven faaassssstttt BM"?

I swear, some people are just so dense. Why don't we all drive Honda civics? Do we really need a car with over 200hp and can top out at 150mph when most speed limits are 65mph? Why do we bother eating at expensive restaurants when we could save a ton and eat at mcdonalds? People have preferences...it's what makes the world go 'round. If people want to overclock, let them have it.

lude219 said:
I swear, some people are just so dense. Why don't we all drive Honda civics? Do we really need a car with over 200hp and can top out at 150mph when most speed limits are 65mph? Why do we bother eating at expensive restaurants when we could save a ton and eat at mcdonalds? People have preferences...it's what makes the world go 'round. If people want to overclock, let them have it.
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Haha good one.
I drive a v8 6.0L lumina SS, my pc is o/c'd from 2.6Ghz to 3.8Ghz Quad core, ram is overclocked to 1700mhz, have crossfired 2 5870s and tested them at 900mhz, my SIII is overclocked to 1800mhz, my LG O3D is oc @ 1350mhz (1ghz original) I guess i like fast things Maybe the OP is just a laid back happy go lucky fella and if everyone is like him we would be all driving steam powered cars and flying in propeller planes

Ok, you got me Guys .. But what pissed me is that this people all points their finger to the Kernel or Dev when they have reboots and heat-ups which is obviously the effect of their Overclocking... i can remmber a post; "damn, why i cant reach 1.8Ghz without random reboot, please fix"...

I actually agree with the op personally and I have been developing on android for four years since the g1, I don't see the need to over clock this phone as it runs really well all of the time,I too had the optimus 3d and that definitely needed overclocking as that was so painstakingly sluggish without it. the only reason I would overclock is for benchmark results other than that its just another drain on the battery for no real world performance gain
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jaytana said:
Ok, you got me Guys .. But what pissed me is that this people all points their finger to the Kernel or Dev when they have reboots and heat-ups which is obviously the effect of their Overclocking... i can remmber a post; "damn, why i cant reach 1.8Ghz without random reboot, please fix"...
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you just can't fix ignorance. if someone doesn't understand the concept and risks of overclocking, let them figure it out. sometimes it irks me to encounter posts like that as well.

androidfanboi said:
I actually agree with the op personally and I have been developing on android for four years since the g1, I don't see the need to over clock this phone as it runs really well all of the time,I too had the optimus 3d and that definitely needed overclocking as that was so painstakingly sluggish without it. the only reason I would overclock is for benchmark results other than that its just another drain on the battery for no real world performance gain
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Off topic: Optimus3D ROM is one of the most poorly optimize in modern Android flagships... I too had one, running it with AOSP is buttery smooth but also have some compromises...

I am sure you are missing the main idea of overclocking. First of all people normally do it to achieve better results in benchmark. But more and more are starting to do it for better performance and so. Overclocking a phone is useful for the first mainly, I doubt that anyone would overclock their phone in order to play games with better fps for instance. The whole idea is bad, there is a large difference between a phone with minimal cooling and a big ass desktop with 50 fans. If we want our devices to last longer we needn't touch them to make them "faster".

When I can overclock to 1.6gh AND under volt to 50mv below the stock voltage for 1.4GHZ it's pretty much a no-brainer
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