Quest and Go in my country is almost double the original price coz of import duty and shipping. I want to customise my snapdragon 845 phone(with 6 gb ram) for explicitly VR to work like Quest(except the 6DOF). I can disable unnecessary services like GPS,Cameras etc. It had heat dissipation similar to Quest(no fan), given that its 845 i think fan is not needed to work like quest.
Is there any Custom ROM for high VR performance that canbe tuned for performance like Quest OS?
What are the things i need to do to the rom to make sure all the resources are allocated to VR?
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I dont understand why company's are concentrating on processor amount,dual ,quad? ITS RAM that is so important, put 2 gigs in a dual core phone it will fly! any comments by devs on this would really help thank you
Not true
Sent from my Galaxy Nexus using XDA
Mylenthes said:
Not true
Sent from my Galaxy Nexus using XDA
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Thanx can you elaborate? trying to learn
2gigs on dual core would fly, but 2gigs on quad core would fly much much faster...
Typed using a small touchscreen
RAM isn't overly important in terms of speed. CPU is extremely important. Basically RAM just holds files that will be needed in the immediate future (or have been used very recently) to reduce read times on those files when they are needed. When it comes to actually running code, that is pretty much purely down to CPU speed. 1GB RAM is plenty to store a few apps and the background OS processes. When more is needed, older apps are closed (by "older apps" I mean ones used least recently). Otherwise, recently used apps are kept in RAM for quick switching. Unless you are trying to multitask in dozens of apps simultaneously, 1GB of RAM should be plenty for a phone today.
Both RAM and CPU has equal aspects on any device.
Ever tried playing GTA 4 on a PC with 1GB Ram and Quadcore CPU or on 4GB RAM with a SingleCore CPU...?
Both Ram and Cpu are important in terms of increasing speed.
Sent from my GT-i9100 equipped with Grenade Launcher and Remote Explosives
The way I have always viewed ram is this; no, more ram than needed won't make your device faster, but it sure will make it slower if you don't have enough!
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DD-Ripper said:
Both RAM and CPU has equal aspects on any device.
Ever tried playing GTA 4 on a PC with 1GB Ram and Quadcore CPU or on 4GB RAM with a SingleCore CPU...?
Both Ram and Cpu are important in terms of increasing speed.
Sent from my GT-i9100 equipped with Grenade Launcher and Remote Explosives
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Awesome answer!! Thank you
Just like i thought!!!
"""""Under the hood, the Samsung Galaxy S III from Verizon Wireless is the same as the other US models. It ships with a dual core 1.5GHz processor and 2GB of RAM, which is meant to compensate for the lack of a quad-core processor that is found in the international version of the handset.""""""
JUST LIKE I THOUGHT!!! and above quote is from a major website!!!!!!!!!!!!!!!!!!!!
lol :victory::victory::victory:
More than 1gb of ram isn't needed. If you are on ics or jb, then you need a good gpu. If you are on froyo or gb, then you need a good CPU since they aren't hw accelerated.
DD-Ripper said:
Both RAM and CPU has equal aspects on any device.
Ever tried playing GTA 4 on a PC with 1GB Ram and Quadcore CPU or on 4GB RAM with a SingleCore CPU...?
Both Ram and Cpu are important in terms of increasing speed.
Sent from my GT-i9100 equipped with Grenade Launcher and Remote Explosives
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Comparing PC with Android is a lil'bit out of the rails here. Even with one core and enough GPU combined with 4GB RAM should be enough to enjoy many things. More core's is good for multitasking etc. But when you think how many apps etc are optimized for those gazillion cores......
Crwolv said:
I dont understand why company's are concentrating on processor amount,dual ,quad? ITS RAM that is so important, put 2 gigs in a dual core phone it will fly! any comments by devs on this would really help thank you
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Its simple. Big RAM can hold more running apps or a single big app (more bunch of codes). In any case, there'd be high demand of processing. So, manufacturers can only add more RAM when they ensure that they have enough processing speed for better experience.
You can say, we have quad-core CPUs now, why can't we add more RAM like we do in PCs?
Well, the answer: Don't go for specs. Smartphone CPUs/GPUs aren't powerful like Desktop ones (despite same specs). There's power and heat issues, in fact.
Plus, Android and its apps are unable to use multiple cores with high efficiency (Intel advocates this; that's why it launched powerful smartphone CPU with 1 core). So, quad-core performs poorer than single/double core performance on PCs.
It limits the lifetime of a device since it cannot be upgraded and maybe manufacturers like that. RAM usually seems to be the limiting factor on phones running future versions of android. Its too bad it can't be upgraded like a desktop/laptop but thats the cost of fitting all of this hardware into a tiny phone.
spunker88 said:
It limits the lifetime of a device since it cannot be upgraded and maybe manufacturers like that. RAM usually seems to be the limiting factor on phones running future versions of android. Its too bad it can't be upgraded like a desktop/laptop but thats the cost of fitting all of this hardware into a tiny phone.
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AGREED! MANY DIFFERENT EXPLANATIONS! glad i asked ,all these helped. more ram would help but only to an extent. example if my wifes former htc design had a gig of ram it wouldn't have lagged so much running a single core 1.2 gig processor. FACT,so htc should have done it,it ran great till it attempted to multitask!:good:
Wasn't it stated during the I/O event that JB in general used less RAM and optimized apps better than the previous OS's so phones wouldn't need as much RAM as before?
It would be nice if JB or ICS had a timeout option for apps open more than a certain amount of time and would shut down automatically therein freeing more RAM. Obviously, it could be turned off or off depending on the user. Or if you could specify certain apps to close after an allotted amount of time if unused. Ex. Play store, calculator, calendar, SMS don't always need to stay on the page you left when you switched apps
As the title says,
What is the best compression level for APK??
and what are the advantages and disadvantages of it??
Good question... I wonder it too.
+1
I would love to know this as well as I'm attempting to optimize one of my roms. From what I understand It's all based on how many cores and the quality of the cpu. In compressing the apk you're optimizing it in some way but adding strain to the cpu because it now has the added task of decompressing every time, but if you've got something like a quad core snapdragon 805 it's a pretty easy task for it to do by separating the workload. Really it's mostly beneficial for devices with low-end flash memory , the key here is to have a good or better quality cpu with multiple cores to easy the workload. In a nutshell you're taking weight off the memory and adding it on to the cpu; good for devices like the moto g with sub-par flash memory but 'good' cpu. there's really not a set level of compression that'll work great for all devices obviously, it's mostly a trial and error type situation where you need to find the right shoe that fits for your specific device.
I was just reading through this article, "Advanced Kernel Tweaks for the OnePlus 3" and was really surprised by the improvement in battery life and performance by just making a few tweaks in the kernel profiles.
While the battery and SOT for our kenzo is already at par with most of the other devices, thanks to the massive battery, but still the thought of implementing the tweaks and further increasing the battery and performance to another level just amazed me. In this article the OP is talking about increasing the SOT upto 14hrs on OnePlus 3 without any significant trade off with the performance, with its 3000mAh battery. So, guys just think what these tweaks can do to our device.
Now, I'm not being too much greedy here but guys let's just give this a try. We have enough people here on our forum for testing.
Since, I'm not much active here and don't know much about the devs involved in the development of our device, so I ask everyone to tag the devs from our Redmi Note 3 forums, in this thread, so that they can look into it and work on highly optimising the different kernel parameters to get the most out of this device.
This is just a humble request from my side, which will benefit a lot of users. Its not that I'm commanding or forcing the devs to do it. Its just a humble request and the devs are free to neglect it.
Thanks anyways, let's hope the devs look into it at further improve the device's performance to another level.
The biggest problem is Snapdragon 650 is 28nm processor and Snapdragon 820/821 is 14nm. 650 will need higher voltage, higher power consumption to reach the stability and performance.
IF Snapdragon 650 were made with 14nm processing, I assume Kenzo will have around 12hr+ SOT straight out the box.
Second is processor architecture, 820/821 based on Kyro cores (heavily modified version of Cortex-A72/A73 core if I'm right, correct me this). Even small cluster of 820/821 will have the same or better performance to big cluster (2xCortex-A72) on 650.
10hrs+ SOT on Kenzo has reached hardware limitation. Miracle may happen, but don't expect it. Developers still looking for the best way to save your battery without trading too much performance.
IMO, Radon Kenzo is the "TWEAKED KERNEL" you need.
OT: Battery life is the only reason why RMN4 (SD) use 625 instead of 652 as we expected. RMN4 SD gonna have little worse CPU performance than MTK variant in trade of better graphic performance. And maybe battery life, I assuming it will have 12hrs+ straight out the box.
The clusters (there use the same archicture but the frequences are different) of s820/821 are at the same frequences less performing than a72, else same in 14nm the consumption of battery is too big with only big cores because there are not efficient for small usage .. so Qualcomm used their own cores mixed to perform correctly and battery consumption correct... but it's really not perfect (Geekbench 4 show well that kryo 100 are really not fantastic...)
If you want a big sot with 650, put down the big cluster... and launch them only on some bigs apps...
14h with an OP3 I think it's near to impossible, same with kernel tweaks... I know a OP3 user and generally it's not more than 5H SOT....
@Archmage1809, @jordandroid64 = The project was initially started for Nexus 5x which had SD 808, a hexa-core processer with 2xA57 and 4xA53 cores. Also it was built on 20nm architcure technology. So, that means there's hope for us too, if what I understood it right.
Nexus 5x Kernel Tweaking
There's too much misinformation around and once I get my unit I will have about 28 days to decide if to keep it or skip this generation, I would like to use this thread to build evidence on how good or bad the international version of this device is, if Samsung scammed 90% of the world then they don't deserve our money.
I'm getting mixed feelings about this chip, In speed test G the 855 beats it by a huge margin, so most people went back spitting at it for being a badly optimized SoC.
Anandtech's Comparisons Show super disappointing scores for the S10 Exynos version, but many of the scores presented make no sense, with older hardware of the same OEM scoring better than the newest, I don't know how much to believe that review and I hope it is fake or badly executed, to my interest, my pre-order comes with the Exynos version and there's no way to have warranty on a 855 in the UK.
Then, the positive evidence we have is that it beats every other released phone on the market in battery usage, there's no such video about the 855 yet so we can't compare them, but that's all I found about the battery of this chip.
In a S10+ vs iPhone XS Max, the S10+ again Exynos beats the iPhone on almost every application, I didn't expect that to happen since it almost never happened, the apps are supposedly the same most of the time and they might as well have completely different algorithms to do the same task done superficially, but generally iOS apps are cleaner inside and their developers have higher standards of work, so how can Exynos be THAT much better?
From what I see the Exynos 9820 is not as what is perceived here on XDA....
Duncan1982 said:
From what I see the Exynos 9820 is not as what is perceived here on XDA....
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And that's a demo unit with 6GB of ram, there are even higher benchmarks with real ones around:
https://browser.geekbench.com/v4/cpu/12211126
But everyone is dismissing Geekbench as "not reliable", and in a way it is not reliable since it doesn't demonstrate the effectiveness of a good scheduler, even the crappiest ones will be pushed to maximum performance once geekbench runs, we need more comparisons with other tools.
it is a solid fact that the Exynos is much faster than anything else in single core performance except the apple A12 and is much faster than the SD855 , while the SD855 is faster in multi core but no by much,
my only concern with the exynos is the stuttering and frame drops and the smoothness overall , i don't care about benchmarks really , and the S10 is ultra fast in launching apps already in both the exynos and SD855 , but the main concern as i mentioned is the smoothness which i think will be related to how the KERNEL will handle & is optimized and if was targeting performance or targeting efficiency only.
Hi Guys , i need tips in fixing performance issue im lg v30 the cpu performance is throttling quite heavily in stock oreo that emulator performance is dropping and can not run games full speed while s8 with same snapdragom processor run the emulator full speed. Any tips ro improve this? I already get the tutorial to update gpu driver here to v313 The stock gpu driver in oreo is horribel using very old gpu driver
From the look of it the stock kernel max speed is 1900mhz and even that it move fasly up and down throttling heavily,any alternative to stock kernel or info about the stock kernel gorvenor?
I have t-mobile variant and it does run constantly at 1.9ghz on little cores, but BIG cores run varying from 2.1 to 2.4ghz. The only emulator i'm using right now are Retroarch64 and ppsspp it's all running well at 30fps. Some refurbished V30 doesn't have heat pipe inside for better cooling, it may throttle cpu during certain workloads AND actually not all SD835 work similar, some device might better or worse depends on thermal regulation, or android optimization.
lg got the worst score 164k antutu for me compared to normal 200k snapdragon 835 , this phone got high end cpu with midrange performance what a waste
immns said:
I have t-mobile variant and it does run constantly at 1.9ghz on little cores, but BIG cores run varying from 2.1 to 2.4ghz. The only emulator i'm using right now are Retroarch64 and ppsspp it's all running well at 30fps. Some refurbished V30 doesn't have heat pipe inside for better cooling, it may throttle cpu during certain workloads AND actually not all SD835 work similar, some device might better or worse depends on thermal regulation, or android optimization.
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How to know? I got the us998 version but dont know if its ref or not? The problem is on dolphin emulator, the ppsspp does run full speed
amdultra said:
How to know? I got the us998 version but dont know if its ref or not? The problem is on dolphin emulator, the ppsspp does run full speed
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how to know what? you can see cpu stats on EX Kernel Manager, maybe kernelauditor as well. It's true that little cluster could only go as far as 1900 not more, but big cluster can go up to 2,45ghz as listed on 835's specs. I don't know, maybe bloated software could have some impact too. have you tried using custom rom? some say it'll improve much in gaming performance. it's worth a shot (few shots i guess, since there are many of them :laugh.
Wantrd to ubl but i need to backup things, will inform later on the thread. Thingkjng to sell the devices for poco or note 8 but i love the features on this devices so much !