Hi,
I dont know whether if this question has been asked or not but
as in dual core it each core 1.2 making in total 2.4? or each core is half ?
if it is half doesn't that make it worse ?
it is two 1.2 GHz cores. However you can't plain sum up the core frequency and declare that SGS2 is 2.4 GHz, cores do not work like that.
Yes "if it is half", it would have made it that much slower
faddys123 said:
Hi,
I dont know whether if this question has been asked or not but
as in dual core it each core 1.2 making in total 2.4? or each core is half ?
if it is half doesn't that make it worse ?
Click to expand...
Click to collapse
Each core is cadenced at 1.2 Ghz.
Both have 1.2 ghz. You never specify the total amount of ghz.
EDIT: Ninja'd. That's what you get for opening a thread, leaving the computer for 10 minds and then reading it..
flooki said:
Both have 1.2 ghz. You never specify the total amount of ghz.
EDIT: Ninja'd. That's what you get for opening a thread, leaving the computer for 10 minds and then reading it..
Click to expand...
Click to collapse
ok so each core is 1.2 but on average it would be near 2.4 ?
edit: also waht i ment by half is that is each core half 1.2 ?
faddys123 said:
Hi,
I dont know whether if this question has been asked or not but
as in dual core it each core 1.2 making in total 2.4? or each core is half ?
if it is half doesn't that make it worse ?
Click to expand...
Click to collapse
To make it easier for you to understand, think like that
Core = Car
1.2ghz = Max Speed of car is 200km/h
If you have two cars (dual core) are they able to drive 400km/h? No, but they can carry more people in total.
Same with cpu. If you have dual core it's not as double fast as one core. It can just execute two different things at the same time.
I know it's funny how I explain but my friends always understand it
zxz0O0 said:
To make it easier for you to understand, think like that
Core = Car
1.2ghz = Max Speed of car is 200km/h
If you have two cars (dual core) are they able to drive 400km/h? No, but they can carry more people in total.
Same with cpu. If you have dual core it's not as double fast as one core. It can just execute two different things at the same time.
I know it's funny how I explain but my friends always understand it
Click to expand...
Click to collapse
That pretty much sums it up. Short & Simple.
zxz0O0 said:
To make it easier for you to understand, think like that
Core = Car
1.2ghz = Max Speed of car is 200km/h
If you have two cars (dual core) are they able to drive 400km/h? No, but they can carry more people in total.
Same with cpu. If you have dual core it's not as double fast as one core. It can just execute two different things at the same time.
I know it's funny how I explain but my friends always understand it
Click to expand...
Click to collapse
thanks i get it, i only asked this because i was on youtube and seen a Motorola atrix video saying its the fastest in the world because each core was 1ghz which made the 2 but now i get it
zxz0O0 said:
To make it easier for you to understand, think like that
Core = Car
1.2ghz = Max Speed of car is 200km/h
If you have two cars (dual core) are they able to drive 400km/h? No, but they can carry more people in total.
Same with cpu. If you have dual core it's not as double fast as one core. It can just execute two different things at the same time.
I know it's funny how I explain but my friends always understand it
Click to expand...
Click to collapse
That is the best description of how dual core works I have ever heard! Simple and easy to understand. Will have to remember that for future reference when people ask about dual core
eagerly awaiting explanation of a multi-CPU device, and what multi-threading is.
thanks
kreoXDA said:
eagerly awaiting explanation of a multi-CPU device, and what multi-threading is.
thanks
Click to expand...
Click to collapse
COOL JOKE lol
Don't know if it's same on mobile devices but on a computer:
Multi Core = Multiple processes running at same time (Multi Tasking)
Multi Threaded = Multiple theads runnable inside the same process providing functionality (more Multi Tasking)
dh2311 said:
That is the best description of how dual core works I have ever heard! Simple and easy to understand. Will have to remember that for future reference when people ask about dual core
Click to expand...
Click to collapse
Thank you! Also a good explanation is:
Core = brain
If you need to take a maths exam and you have two brains (two cores) you don't have more IQ and can't answer one exercise faster.
However, one brain (core1) can start with exercise #1 while the other brain (core2) can start with exercise #2. Summary: You are as double fast as normally taking the whole exam. But you are not faster answering one single question.
kreoXDA said:
eagerly awaiting explanation of a multi-CPU device, and what multi-threading is.
thanks
Click to expand...
Click to collapse
Uhm, I don't have special explanations for these things. Multiplying the core frequency with the numbers of cores is a common error and is asked very often. That's why I thought about a good and very-easy-to-understand explanation.
Though I still try to answer.
Multi-CPU device is just a device using mutliple cores. Mobile devices try to achieve the same as desktop CPUs. With multiple cores you can complete more work at the same time and also at lower power.
Multithreading is a feature of the CPU. A software supporting multithreading must be running to use it. It allows the CPU to execute multiple threads at the same time.
Short:
Multi-CPU device: using multiple cpu cores to execute more tasks at the same time
Multithreading: feature to execute more threads (inside one task) at the same time.
Sorry about the mistakes I made and I am looking forward (to the weekend) to possible reforms
zxz0O0 said:
Sorry about the mistakes I made and I am looking forward (to the weekend) to possible reforms
Click to expand...
Click to collapse
you just had to bring HER into this didn't you lol
Hello everybody,
My friend and me(we have s-on and ics stock last version) when we tried quandrant we usually get 2700 scores.But he told me yesterday he tried different way that he added one line in "buid.prop" and he got 3600 marks quandrant scores
When he opened quandtrant benchmark system information he saw just 1 core is writing.He thought we should see 2 cores because we have 2 cores and ics (even leak)version.
So he wants to added in build.prop ''persist.sys.ui.hw=1'' and he wiped dalvic cache and cache and fix permission then restart system.He checked quandtrant standarts and he saw that 2 cores were writing there and immediately he got run full benchmark and got 3600-3500 marks.So we think that the reason of 2 cores.
But when he checked after 20 min later it was writing again 1 core in quantrand system information.It s chancing by itself.we can get more performans? is it possible to keep it?
I remember some guys talking about cores and they told just check antutu you gonna see 2 cores.Second core works when need it.But my friend added ''persist.sys.ui.hw=1" this line in build.prop and maybe he made 2 cores active So what do you think about it?Maybe somebody try this way and share results with us?
"sorry about my english.it is not perfect "
musti95 said:
Hello everybody,
My friend and me(we have s-on and ics stock last version) when we tried quandrant we usually get 2700 scores.But he told me yesterday he tried different way that he added one line in "buid.prop" and he got 3600 marks quandrant scores
When he opened quandtrant benchmark system information he saw just 1 core is writing.He thought we should see 2 cores because we have 2 cores and ics (even leak)version.
So he wants to added in build.prop ''persist.sys.ui.hw=1'' and he wiped dalvic cache and cache and fix permission then restart system.He checked quandtrant standarts and he saw that 2 cores were writing there and immediately he got run full benchmark and got 3600-3500 marks.So we think that the reason of 2 cores.
But when he checked after 20 min later it was writing again 1 core in quantrand system information.It s chancing by itself.we can get more performans? is it possible to keep it?
I remember some guys talking about cores and they told just check antutu you gonna see 2 cores.Second core works when need it.But my friend added ''persist.sys.ui.hw=1" this line in build.prop and maybe he made 2 cores active So what do you think about it?Maybe somebody try this way and share results with us?
"sorry about my english.it is not perfect "
Click to expand...
Click to collapse
The first few pages of this threadhttp://forum.xda-developers.com/showthread.php?t=1616669 talked extensively about dual-core and quadrant scores, and I would say by page 10 it was agreed upon that quadrant really just sucks. Go check it out, maybe that will shine some light for you..
I remember reading about how ICS improved dual core support, and I could have sworn it was on developer.android.com but I can't find the article that explains it now(and too many results to sift thru) - but basically the tweak "persist.sys.ui.hw=1" would have been found in gingerbread roms, because it DID increase performance, however with the way ICS handles the threading of dual-core+ processors that shouldn't do anything.
And before someone comes in here and says this in a not-as-nice way, be careful using quadrant benchmark as a tool- if ONE little detail is different, you will get TOTALLY different results! A different launcher, a different setting, or even having different background processes or having recently run a different app will change the score TOTALLY. Run it 10 times, chances are it will put out wildly different numbers - now go run 10 apps, then go back into quadrant and run it 10 more time - again, wildly different numbers, no consistency.
Besides, all that REALLY matters is your experience - if your score goes up a thousand(consistently somehow) but it doesn't work noticeably smoother, faster, or better- then what does your score matter? You could add 2 more cores, another gig of ram, better gpu - but if you can't NOTICE a difference then what would the point be?
It is easy to find why people added 'persist.sys.ui.hw=1' to gingerbread, but I can't find ANY documentation/posts that give a real reason to add it in an ICS build.. hope this answers your question.
And if anyone can find the link to googles explanation on how ice cream sandwich handles multi-core cpus compared to gingerbread can you PM it to me?
Thanks my friend your answer.Just ı got that if use quandrant benchmark test when ı check system information if ı see 2 core ı get 3500 marks but if ı see just 1 core system informatin ı can get 2700 marks.
So it depents on cores ı see.Its fault of benchmark app or our phone works one core just when need it use second core?
Hey guys, ive been searching the forum for well over an hour now and I havent heared a real answer to what is a stable speed to clock the Samsung Galaxy Xcover to. Its originaly on 800Mhz but I read that it could be clocked to 1.2Ghz and that the xcover is really underclocked.
(Found that here: http://forum.xda-developers.com/showthread.php?p=23984191)
I did a little more research and looked at other peoples opinions saying that the reason its underclocked is cuz the water and dust resistence left no ventelation and would make it overheat.
But now I just want to ask, what would be the best stable speed to clock the cpu at without damaging the phone?
Thanks in advance!
answer
Angmir said:
Hey guys, ive been searching the forum for well over an hour now and I havent heared a real answer to what is a stable speed to clock the Samsung Galaxy Xcover to. Its originaly on 800Mhz but I read that it could be clocked to 1.2Ghz and that the xcover is really underclocked.
(Found that here: http://forum.xda-developers.com/showthread.php?p=23984191)
I did a little more research and looked at other peoples opinions saying that the reason its underclocked is cuz the water and dust resistence left no ventelation and would make it overheat.
But now I just want to ask, what would be the best stable speed to clock the cpu at without damaging the phone?
Thanks in advance!
Click to expand...
Click to collapse
Hi
Although the specifications for the Marvell MG chip clock it at 1.0-1.2GHz, Samsung was shipped with chips that were certified only at 800MHz clock.
Even if you did get by chance a chip that may work in higher clocks, the kernel does not support any clock above 800MHz. A change must be done to both the cpu core clock and the voltages in the power management IC. It can only be done with the original source codes of the kernel.
I learned in an earlier thread (here) that the Zenwatch 2 is throttled down to only 1 core running at 800Mhz. My Zenwatch, while not totally unusable, does seem to be sluggish at times, and I would love to unlocked those cores to see that sluggishness disappear. As the title says, is it possible to unlock the 3 unused CPU cores on the watch? Maybe even get them running at a default clock set by the processor? I'd be willing to sacrifice battery.
Can anyone answer this question? I´d like to know as well...
Maybe Asus will reactivate them in a future update?
Would it somehow be possible to use a root app such as perhaps kernel audior to force the other cores to work?
HI All
thanks for taking the time to read this and helping me out and bare with me as I'm fairly new to posting on these forums
Ive got an IQI I3 smartwatch that I bought from china , IT tuns android 5.1 has 512mb of ram and uses the mtk 6580m quadcore processor
My issue is that the SOC runs all 4 cores at all times and this smartwatch has a small battery so it drains fast
ive rooted the watch using kingroot and installed several cpu control apps but when I disable the cores through those apps they just instantly get re-enabled , does anyone know why this is happening ? is this a kernel issue , can I modify the kernel to stop the cores getting re enabled ?
Thanks