yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Stevethegreat:
Indeed what Samsung did by fragmenting her user base was bad news for development.

Yet exynos 5420 has the unique advantage of being in an array of products compared to exynos 5410. Naturally n3's exynos version is/was not very popular (no lte) but in tablets it seems the opposite is true (the exynos version seems more popular). Tablets are a relatively smaller market but if you put them together you will probably get more users of a kernel (considering it is being ported in all exynos 5420 devices) than what you get with i9500.

I know it may still not be enough to spark your interest but I throw it out there to show that things may not be as bad for exynos 5420 development as they could be...
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
In Q4 2013 Samsung sold 86M smartphones; the majority high end. They sold 16M tablets; mostly low end. High end large format Android tablets have never sold well. We, the one's that have bought in, are a minority. I don't think the Tab|Pro's are going to sell well at the iPad prices Samsung's asking. And don't forget the 8.4 is S-800 exclusively. The Note-series with S Pen are unique and have developed a strong niche. But their still niche products. The N10.1-12 didn't change the world and it was as capable as the iPad it was competing with for most of its run. In other words, if the N3 doesn't get any 5420 attention I wouldn't expect the incremental volume the tablets will add to make a difference. And as was said before with LTE gaining scale 2/3's of N3's sold have been S-800. The Exynos SGS5 will most likely be 5422 so those devs will care less about 5420. Time will tell whether anything changes for 5420 users regarding HMP. All it takes is one motivated dev. ;)
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Stevethegreat:
Yeah I know of those, but the part you quoted was a bit out of context. I wrote that exynos 5420 users may end up more numerous than exynos 5410 users in particular, which is the question at hand here (AndreiLux is deving a 5410 device). I was trying to convince him that while things may be far from rosy for Exynos 5420 they may end up rosier than what it turned out for Exynos 5410.

Then again it would be perfectly understandable if he wouldn't like to deal with this mess. I still think -though- given how undersupported exynos devices are that it is precisely there were the best chances for creating a groundbreaking kernel lies; in contrast to that everybody and his dog is deving a qualcomm device (the latest Nexii are qualcomm devices, that says it all)
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] ps000000:
64Bit mobile OS & Hardware is coming
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Stevethegreat:
In desktop 64 bit made little difference. It's godsend for servers, not so for every day use.

Then again it will allow us to use more ram which is always a good thing, but 8 gigs of ram is the standard for comfortable use (not talking about specified uses) for half a decade now which shows that we may be nearing a ceiling even there.

What we mostly need is better IPC to approach those that desktop cpus produce and better gpus to keep up with the ultra high resolutions we're dealing with. Both can come regardless of whether we'd move to 64Bits or not...

Anyway HMP would give better battery life to heavy users rather than anything else...
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] wingdo:
Speak for yourself. I can't imagine still using a desktop with a 4GB RAM limit in 2014. Lord I have 16 GB and am getting ready to add more.

Sent via Tapatalk and my thumbs.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Stevethegreat:
I don't see where we disagree, I spoke of 64 bit tech not ram tech. I agreed that 64 bit would give you greater ram support (even though you can add -even now- more ram, no problem whatsoever it would merely not be accounted by most apps, but they would still -happily- be used from them as long as they don't have to exceed the 4GB amount, which amount most apps don't have to exceed in neither -the- desktop or tablets).

What I said further is that *64bit itself* (I.e. as Apple intends to use it, merely changing the commands) won't make much of an impact (again-ram- will but by definition what we need even more than more ram is/are better IPCs and/or better GPUs).

Anyway none of this has anything to do with this thread so I'd stop at that and you'd better do so as well.

Cheers.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Stevethegreat:
BTW sorry for resurrecting this old thread but apparently with HMP enabled you get an Antutu Score close to 40k . With kernel optimization you'd certainly surpass it, almost how I predicted it.

What's greater is that you get an at least equally good battery. With HMP enabled Samsung finally got their Exynos in line with expectations and they refuse to give (the update) to the public. It's scandalous to wait for late 2014 for performance (and battery) which is here since late 2013...

And also here's the source of the pic (it's in russian): http://www.dgl.ru/reviews/zametki-o-samsung-galaxy-s5-skromnost-kotoraya-ukrashaet_5060.html
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
And yet here we sit, in the exact same place we were a year ago when it was first discovered HMP wasn't enabled. And a year from now when HMP enabled devices are widely available for purchase it won't make a whit of difference to those with earlier Exynos chips. It is what it is my friend. With nothing changed there's not really even a discussion to be had.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Stevethegreat:
Funny thing is that Exynos 5420 was tutted as "HMP capable" and indeed it is, but apparently it will cut from future sales or whatever... Damn a large device like ours (with a large res) can use all the power and battery you can give it, there is no reason to hold back... It's very sad really...
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] trein91:
Now that the galaxy tab pros and new Tab S lines come out with exynos 5420 (presumably with hmp on), does this change anything?
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] loooller:
The Tab S line is using the Exynos 5410
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] trein91:
Source? It's 5420.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] loooller:
http://www.hardwarezone.com.sg/feature-hands-samsung-galaxy-tab-s
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] trein91:
Only site that says 5410. Every other one states 5420. No way they're gonna use the s4 chipset on that.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
The N10.1-14 (and the Pro's) use 5420. 5422 is the Exynos chip that's supposedly capable of supporting HMP. 5422 is clocked at 2.1GHz. The SGS5 and Tab S are clocked at 1.9GHz which, to me, means they are still using 5420.

These articles say 5422 is being used in an LTE version of the SGS5 for the Korean market...

http://www.engadget.com/2014/03/01/why-did-samsung-play-it-safe-with-the-galaxy-s5/

http://www.engadget.com/2014/02/25/samsung-galaxy-s5-octo-core/

So unless there's a 1.9GHz version of 5422, so far, all Samsung's newer Octa devices appear to be using the same 5420 chip. Another question is, while 5422 (wherever it's used) is HMP "capable," will HMP be physically enabled? We on XDA are hung up on all eight cores being able to be used together. Samsung doesn't seem to care.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] trein91:
The Exynos galaxy s5 (Indian version) runs on Exynos 5420 and has hmp. (proof is its antutu scores closing in on 38k to 40k
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] loooller:
ok maybe there was a typo in the article i read :D hope some dev manages to port hmp over for us
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] warboat:
HeMP

Let's just stick up donations for a bounty prize to get HMP ported.

It would hit 4 figures in no time.

the likes of AndreiLux and nemesis can race for it.

Meanwhile, me and the overclocker boys are going into the shed to knock up liquidcooling rear cover replacements to cool all 8 hamsters peakin hard at the same time.

We'll figure out the battery thing later.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
5420 doesn't support HMP. And AnTuTu really doesn't prove anything. Find one credible link anywhere that shows 5420 running eight cores. The big news about 5422 when it was announced was it was Samsung's first HMP capable big.LITTLE chip. Those links you'll find. If the SGS5 is using 5422 (and India's not special) HMP may be enabled. But that doesn't explain why 5422 isn't running at 2.1GHz if in fact it's being used in the SGS5.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] i9100g user:
All non-lte markets feature Exynos 5422 (which includes India)
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] trein91:
Edit nvm
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] AndreiLux:
Give up on trying to get HMP working on platforms which don't have it from the get-go, bootloader and other things will prevent it from properly working.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
The Tab S' haven't even moved to S-801. That, I'm guessing, means that the N10.1-14, Pro's, and now S' are all using the same h/w platform. Most likely for economies of scale and cost savings. That means there will be no HMP for any of those devices. HMP discussions are like Loch Ness monster sightings; they come up all the time but there's never anything but murky evidence. 5422 is HMP capable. Devices using it may run eight cores simultaneously. I'd like to see that on something like CPU-Z (from Play) that shows how many cores are running at a given time and what the load they are individually supporting is.

From Anandtech regarding the S'

http://www.anandtech.com/show/8168/...5-84-hands-on-with-samsungs-66mm-thin-tablets

[MENTION=4167023]AndreiLux[/MENTION] is probably the most recognized kernel developer on XDA. If you don't believe me, hopefully you'll believe him.

And even if HMP is enabled in the SGS5 and Tab S', who cares? It's not going to do owners of earlier Exynos products any good so why continue to beat the dead horse? People wanting and feeling cheated that they never got HMP all claim it will/would bring massive improvements in performance and energy efficiency. If the SGS5

is

using HMP where are the massive battery savings and performance improvements over non-HMP Exynos devices and Snapdragon?
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] AndreiLux:
The S5 is running HMP just fine on the 5422 and it does get better battery life. What it's suffering from right now is observation bias since I don't know of any website who empirically tested it, and it's available just in what is basically second-world countries. Some guys who had both versions say the Exynos runs more efficient/faster. However it still has a weaker GPU, no denying that.

Anyway, these new Tab S run on 5420's. I don't know what Samsung is doing in choosing that one, maybe component inventory or something.

In any case, if you really care about such things, just skip this generation too since the next is coming out again in a few months with a vastly better platform (New Note Tab I assume).
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
Here's what's confusing...

Samsung announced two new mobile SoCs at MWC today. The first is an update to the Exynos 5 Octa with the new Exynos 5422. The 5422 is a mild update to the 5420, which was found in some international variants of the Galaxy Note 3. The new SoC is still built on a 28nm process at Samsung, but enjoys much higher frequencies on both the Cortex A7 and A15 clusters. The two clusters can run their cores at up to 1.5GHz and 2.1GHz, respectively.

The 5422 supports HMP (Heterogeneous Multi-Processing), and Samsung LSI tells us that unlike the 5420 we may actually see this one used with HMP enabled. HMP refers to the ability for the OS to use and schedule threads on all 8 cores at the same time, putting those threads with low performance requirements on the little cores and high performance threads on the big cores.

The GPU is still the same ARM Mali-T628 MP6 from the 5420, running at the same frequency. Samsung does expect the 5422 to ship with updated software (drivers perhaps?) that will improve GPU performance over the 5420.

http://www.anandtech.com/show/7811/samsungs-exynos-5422-the-ideal-biglittle-exynos-5-hexa-5260​

So what's your take? Is the chip in the SGS5 5420 (1.9/1.3) with HMP enabled or 5422 (2.1/1.5) under-clocked? Or is it really just one chip with some marketing spin thrown at it. ;)

Even Samsung SLI's site has 2.1/1.5 in the specs...
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] AndreiLux:
They're different chips. The S5 has an underclocked 5422 to match the S801 variant in performance.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] warboat:
I reckon the 5420 is just an underclocked 5422, not the other way round.

If it passes yield tests, it becomes 5422, if not, becomes underclocked 5420.

Most markets are not getting the 5422 S5, they get the SD801 versions for the 4G radio.

It seems like Samsung closely match the performance of the Exynos to the Qualcomm versions so as to not upset their Qualcomm partners and bias the market towards their own SOC based on performance.

Qualcomm is playing dirty with their high pricing on 4G radio chips in order to make their SOCs with integrated 4G attractively priced.

Granted the Adreno 330 is faster than Samsungs GPU, however, the Exynos 5 series CPU is faster than the Snapdragons per clock cycle.

If you run CPU intensive tests like Droidfish, the Exynos 5420 BLOWS the SD800 away on pure chess logic computations even when underclocked as 5420.

You have to chuck graphics in the mix to even it up.

I'm pretty certain the 5420 is HMP capable and Samsung just hasn't played their trump card yet with the SOC until Qualcomm overclocked the SD801. The SD800 is already overclocked in the CPU department as it cannot sustain the max clock freq for very long.

That said, I feel there is a further benefit to having HMP than just battery saving or outright speed, and that is thermal balancing. If they were able to run 1x A7 + 1xA15, it would allow power management to cycle between pairs of A7 and A15 cores to switch thermal loads and allow cores some duty cycles to throttle down and cool off where most loads fit nicely within a pair of A7+A15.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] AndreiLux:
The 5422 is a different chip than the 5420... ok?
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Vokmeng:
I am wondering , did Samsung really release the software patch for enabling HMP?

On Linaro website, yes there is big.little mp kernel. but the platform is Versatile Express TC2. this SoC from ARM for testing big.little. I have searched on internet for a long time. there is no any information about what the software patch has been released by SAMSUNG.

With that patch ,maybe developers could do something on HMP,but without it there is no at all.

Does any body know about the software patch?
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Freakstyler:
What we do know is that the 5420 in the Tab S is scoring 35,000+ in Antutu...

It seems that our Note 2014 versions usually score about 32,000+, So that leads me to suspect that the newer Galaxy Tab S 5420 is HMP enabled due to the higher Antutu scores.

We possibly need someone like Xluco to have a look through the Tab S (T700 or T800) Kernel images to see if our Notes can be retrofitted to work, or how significant the changes between them might be.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] nrage23:
I have a Note 10.1 2014 Wifi that I bought from Best Buy the day it came out and I get much better Antutu results than 32k.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Freakstyler:
Is that a Stock ROM and Kernel.?

I was just going via the reviews.

Sent from my SM-P600
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
Here's what we know. The LTE Tab S is using the S-800 vs. S-801 like the SGS5 it's modeled after. If to save money all Samsung's tablets starting with the N10.1-14 are using the same architecture, then the Exynos Tab S

could

be using 5420. 5420<>5422 are near identical and in the SGS5 even run the same clock speeds. So the Exynos Tab S

could

also be running 5422

and

HMP. Until someone confirms which it is we're guessing.

[MENTION=4167023]AndreiLux[/MENTION] is probably

the

kernel developer on XDA with 13K thanks. He's said, repeatedly, there's no way to enable HMP on 5420. [MENTION=5529656]xluco[/MENTION] may be a fine developer but with 174 posts and 202 thanks I hardly think he's going to come up with something AndreiLux who's been following HMP since big.LITTLE was announced hasn't.

The horse is dead ladies and gentlemen - there will be no HMP for chips Samsung shipped where it wasn't enabled. The only question left to answer is whether or not the Exynos Tab S is using 5420 like other new Samsung tablets or 5422 like the SGS5. If the latter, it'll have HMP enabled.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Itchiee:
Stock Kitkat, yummy.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Freakstyler:
If you had of been paying attention, thats what we are talking about. We already know that the Tab S is using the 5420, and not the 5422.

We don't know for sure is if the 5420 in the Tab S is HMP enabled. And while we can speculate, we need someone adept at Kernel hacking to see if there is anything to it.

Stock KK score on Tab S is over 36,000 but not sure if that shows anything really.

Sent from my SM-P600
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] AndreiLux:
http://patchwork.ozlabs.org/patch/350468/

MCPM backend and CPUIdle support is in mainline, that's all that's needed on the kernel side. However if you don't have access to the bootloader and the CPU's SRAM stuff, it's useless and it will never work. There is a whole software stack that needs updating and important parts are not open-source. Plus there's a physical hardware switch on the SoC to enable/disable the CCI. So unless you own an SMDK board, forget it.

There is no need to go hacking anything. You either see 8 cores online or you don't.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Freakstyler:
Cheers, thanks for the confirmation...

I cannot see myself ever being interested in another Exynos chipset as a result....

The initial lag issues, the lack of CM support, the lacking Samsung developer support, lack of Towelroot support, no HMP support, intrusive Knox, makes me think Samsung just isn't the company to trust with SoCs in the future.

My next tablet needs to bring the Next-Gen 20nm 64bit SoCs from Qualcomm. :)
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
5420+hmp=5422
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] nrage23:
Stock. I saw something tested with HMP enabled should be over 40k in Antutu.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Freakstyler:
Thanks.

Seems like the S5's 5422 is good for about 38,500 according to this site: (Not sure if the 1080 resolution is making much difference).

http://www.techentice.com/galaxy-s5-snapdragon-801-vs-galaxy-s5-exynos-5422-octa-core/

The only chip I know that's broken the elusive 40,000 mark is new Nvidia K1.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] trein91:
If it wasn't underclocked out of the box by Samsung (it's supposed to run at 2.1ghz instead of 1.9) it probably would reach 40k easy.

Sent from my Galaxy S3
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] fatpizza:
So are we pretty much waiting on people having the new Tab S in their hands before we can make the final determination about HMP? Unlikely as it seems to be...
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] BarryH_GEG:
No more guessing. The Tab S' are using the same architecture as all the other late-model Samsung tablets - Exynos 5420 and S-800.

The global variants we received are WiFi only and use Samsung’s Exynos 5 Octa (5420) SoC, although North American bound LTE models will use Qualcomm Snapdragon 800 silicon (MSM8974AB v2) with integrated modem. All Tab Ses ship with 3GB of LPDDR3 memory.​

Benchmarks are almost identical to earlier tablets with the exception of battery life which goes up tremendously on dark colors (video) and drops equally on light colors (web browsing).

http://www.anandtech.com/show/8197/samsung-galaxy-tab-s-review-105-84inch
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] fixfox2:
[MENTION=4167023]AndreiLux[/MENTION]

In summary, HMP will never be possible on the old exynos 5420 based devices ( note 3 & 10.1 2014 ) ?
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] AndreiLux:
Not from the community, no.
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Andmoreagain:
Noticed this while looking at the latest patches from the Linaro guys... big.LITTLE MP seems to have been acheived and confirmed working on the exynos5420-powered peach-pit board (Samsung Chromebook). Patches/discussion:

Problems booting exynos5420 with >1 CPU

(1/3) ARM: MCPM: provide infrastructure to allow for MCPM loopback

(2/3) ARM: TC2: test the MCPM loopback during boot

(3/3) ARM: exynos: activate the CCI on boot CPU/cluster with the MCPM loopback
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] mohamadreza33:
Its dangerous...

i read in some other community... they activated the 8 cores in the same time.. and after 1 hour their device had been damaged hardly and burned.. i suggest you do not activate the 8 cores in the same time.. because the voltage of both CPU are not same... and its very dangerous :rolleyes::eek:
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] Andmoreagain:
Sources? For some reason I highly doubt this is true for the Exynos 5420 because (as far as I know) community devs have not been able to activate Global Task Scheduling/big.LITTLE-MP on our SoC prior to the patchset I linked to in my previous post. Another thing to note is that the Linaro big.LITTLE-MP patchset is not applicable to the current stock kernel for our device. The official SM-P600 kernel is at version 3.4.39 while the Linaro Stable Kernel is at version 3.10.x.

Either way, as far as my understanding of the big.LITTLE technology goes, the GTS (formerly known as HMP) solution shouldn't cause our device to heat up more than the current IKS solution if correctly implemented.

See:

Heterogenous Multi-Processing Solution of Exynos 5 Octa with ARM® big.LITTLE™ Technology

Benefits of the big.LITTLE Architecture

Software Techniques for ARM big.LITTLE Systems

tl;dr: The patchset is already here (thanks to the devs @ Linaro) and can be implemented on development boards running on big.LITTLE architecture. Implementing it properly in our device's kernel is a different story...
[Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl] technobuddha:
Hi all,

I've been researching this, as I plan on building a ROM for the samsung galaxy tab pro 12.2

I want to have both android and linux (xwindows) running side by side.

So I want to make sure that this big-LITTLE-MP patch works.

I'm trying to find out if samsung has applied the patch or already has the capibility to run all 8.. well with the 'scheduler" anyways in their original ROM. I want to port it, and add a chroot linux to it, with set of libraries that will have xwindows.

I'm learning how to busybox/chroot a linux inside android, but ultimately i want the chroot linux to be able to use the big-LITTLE-MP scheduler capibilities alongside android.

I'm a big confused as to how to accomplish this. when you chroot into a jailed linux, you don't need a kernel. so is the existing kernel used?

I believe so, and if that is true, then to have the xwindows, I have to make sure i have the proper mali hardware blobs for xwindows. correct?

and one of the biggest challanges is to let xwindows use the touchscreen.

am I asking for too much? is this even possible? and if so, where should I start looking for info for this project?

thanks!