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My tw taskmanager shows only 340mb ram instead of 512mb, after some research I found that the rest of the ram is used for ramdisk,is that true?
If so,is there a way to use all of 512mb for ram?And does this make Epic inferior to Vibrant,Captivate and Fascinate or better?
All Galaxy S phones have 512 MBs of RAM. And I do believe all are the same. At least the i9000 and the Epic are.
The phone has a physical 512MB of RAM, but I don't believe that the stock kernel currently supports more than 340MB.
thephawx said:
All Galaxy S phones have 512 MBs of RAM. And I do believe all are the same. At least the i9000 and the Epic are.
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Check your built in taskmanager(by holding home button),it only shows 324mb total ram,so no they not all the same.Yes we do have 512mb but only 324mb(give or take few mb) is used for actual ram,the rest is used as ramdisk(cache).Vibrant and Captivate uses whole 512mb as ram and internal rom(hd) for cache,im not sure about original Galaxy or Fascinate.
Believe me extra ram not being available has huge impact on performance,i owned MT3gs with 512mb ram and 600mhz cpu and it felt just as fast as my Epic if not faster even with Sense.
This could explain big lag im getting with 4-5 apps open,i could have 10 apps open on Mytouch slide with no lag.
lviv73 said:
Check your built in taskmanager(by holding home button),it only shows 324mb total ram,so no they not all the same.Yes we do have 512mb but only 324mb(give or take few mb) is used for actual ram,the rest is used as ramdisk(cache).Vibrant and Captivate uses whole 512mb as ram and internal rom(hd) for cache,im not sure about original Galaxy or Fascinate.
Believe me extra ram not being available has huge impact on performance,i owned MT3gs with 512mb ram and 600mhz cpu and it felt just as fast as my Epic if not faster even with Sense.
This could explain big lag im getting with 4-5 apps open,i could have 10 apps open on Mytouch slide with no lag.
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There is a reason why. There is no dalvik cache push to sd for our devices yet. If we could get an ext2 or ext3 or ext 4 for our sd cards and move the cache there, it would be a whole new ball game. But it's no availible for us yet
Maybe to balance the phones out because epic has 2 cameras and keyboard
Sent from my iPod touch using Tapatalk
I wonder if other models have same ram or they have full 512mb of usable ram without ramdisk,and does that makes epic faster or slower?
I know my MT3gs was way faster with stock sense 600mhz cpu and 512 ram(without sd cache),sounds like this phone needs that extra 128+ram because extra ram makes more difference than faster cpu,324mb ram I dont think is sufficient for 2.1 to run smoothly.Hope someone comes up with something so we can use whole 512mb as ram and internal rom or sd for cache.
The reason why we have only 320 showing is because samsung moved the cache there to prevent the lag some people here talkming about the galaxy s having.
Sent from my SPH-D700 using Tapatalk
EPIC FAIL ...325 for me :-(
2012 the Evolution of Human Consciousness
supposedly the GPU uses 128mb of the ram
All 5 galaxy s phones have 512mb but the epic and fascinate are limited to the 300 and something because our phones are the only ones that don't have a massive amount of internal sd like the others. We ours uses the more typical smaller amount of rom and the missing ram is used to stop touchwiz from lagging! Why do manufacturers and carriers keep ****ing up android!? Love this device but I can customize it myself just fine without the extra tw layer eating my resources and slowing my upgrade releases!
Sent from my Epic 4G using xda app
We have 512mb rom which can be used for cache,i have all the apps I need installed in /system/app folder and still have 400mb free,how much should be dedicated to android swap 128,256?So there is plenty of room and for those people that have about 100 apps on they phone they need to wait for a2sd.
Still no one has answered if its possible to use whole 512mb for ram,this phone really neads it,most of the time I have 3-4 apps open and about 80mb ram free-thats not good.Epic has fastets rom out of any model,now if we could use it for cache and a2sd for apps,plus whole 512mb as ram,than this thing would fly.128 for swap is a waste,plus I think that this 128mb actualy takes away from GPU's vram.
I agree that we need more RAM. There has to be a way to edit the kernel and get more out of our hardware.
I posted this in another thread but thought it was worthy of its own thread.
I've owned a lot of Android devices with 1GB of RAM - Xoom, Galaxy Tab 10.1, Galaxy Note, and the original Transformer. This is the first android device that actually shows 1gb of ram. Every 1gb phone or tablet I've had only lists around 750mb total, and then only about 400 or so free on a fresh boot. The explanation has always been that 1gb is shared ram and that the mixing 250mb or so is for video ram. You can see total and available ram in an app called OSMonitor. Anyway, the tf300 actually shows 1gb total ram, and 750 free on a fresh boot. So that's an extra 250mb of usable ram over other devices.
Thoughts?
The device has more as 1GB RAM (1,2GB maybe)?
Gesendet von meinem Galaxy Nexus mit Tapatalk 2
It's advertised as 1GB of RAM, so either it has more actual RAM (1.2 like you suggest) or it has dedicated video RAM somehow.
It's very possible this is inherent to Tegra3. I do not have any Tegra 3 devices to check. I'm going to ask in the Prime Q&A section.
Obviously either a design flaw or outright false advertisement. You should sue them for giving you more ram than advertised.
goodintentions said:
Obviously either a design flaw or outright false advertisement. You should sue them for giving you more ram than advertised.
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WTF? I'm not complaining I'm trying to understand it. It's different than every other Android device.
EvoXOhio said:
WTF? I'm not complaining I'm trying to understand it. It's different than every other Android device.
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Goodintentions is known to be sarcastic you will learn that in time. Most likley it is because tegra 3's gpu has its own dedicated ram so it does not go into the system ram
mrevankyle said:
Goodintentions is known to be sarcastic you will learn that in time. Most likley it is because tegra 3's gpu has its own dedicated ram so it does not go into the system ram
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That would explain it. do you have a source link to back that up? not finding anything in a google search.
Thanks.
Everything im finding is that it just has the 1gb of ram, but possibly the way it handles it is different and may expand or shrink that video ram depending on what it needs.
http://www.nvidia.com/object/tegra-3-processor.html
just general info
also is DDR3
jblah said:
also is DDR3
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Yeah DDR3 means it's faster and has more bandwidth, but that wouldn't affect whether the system has dedicated or shared video RAM.
Is it possible that it's just more efficient in the usage of it's 1GB of ram than the previous products? I can't find any mention anywhere of Tegra 3 specifically doing anything or of the TF300 having more secret ram or anything.
That was the first thing that I noticed about this tab, is that the memory management on this tab is awesome. I can be running GTA3, have two or three tabs open in the browser and also be streaming music and the RAM only drops to about 550MB. At idle on a fresh boot, around 750MB free at idle, and If i do a task killer it will jump up to 830MB temporarily. I can only think it's becuase of the Tegra3 CPU. Regardless it's nice to see a tab with so much free RAM.
Scavar said:
Is it possible that it's just more efficient in the usage of it's 1GB of ram than the previous products? I can't find any mention anywhere of Tegra 3 specifically doing anything or of the TF300 having more secret ram or anything.
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No because we're not talking about FREE RAM here we're taking about TOTAL RAM. either the system has more than 1GB or it's not sharing RAM with the video card.
das7771 said:
At idle on a fresh boot, around 750MB free at idle, and If i do a task killer it will jump up to 830MB temporarily. I can only think it's becuase of the Tegra3 CPU. Regardless it's nice to see a tab with so much free RAM.
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Huge amounts of free RAM is not something nice to see; it's a pointless waste. I guess that misunderstanding is still pervasive in the "OMG tasks are in RAM MUST KILL THEM" community ...
nightwulf said:
Huge amounts of free RAM is not something nice to see; it's a pointless waste. I guess that misunderstanding is still pervasive in the "OMG tasks are in RAM MUST KILL THEM" community ...
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Huge amounts of free RAM on a fresh boot is a GREAT thing. It means that the OS is lightweight and not loading tons of bloatware into memory. Now after using the tablet and opening tons of apps the free RAM should go down, if not then yes it is wasting RAM by dumping stuff out of memory.
But besides that the topic at hand is total RAM. more total RAM means more apps can stay in the background which means better multitasking.
They all actually have 1GB of RAM. The difference is simply that some chips separate the video RAM and the system RAM, where others are able to use a shared memory space and dynamically allocate RAM to video as necessary.
Most likely, devices with higher memory bandwidth will be able to use dynamically allocation because the extra bandwidth provides the overhead necessary to minimize performance impacts should the GPU need to pull more memory from the system on the fly.
On Tegra2 devices which were limited to 1 channel of 32bit ddr2, there is much less memory bandwidth than on tegra3 with ddr3 (or dual channel ddr2 like ipad). In this instance, it would cause a performance hit to have to free up extra memory from background tasks and then reallocate it to the gpu - so the solution is to just partition the entire memory into two sections each of which are generally large enough for both their respective duties: video ram and system ram.
EvoXOhio said:
Yeah DDR3 means it's faster and has more bandwidth, but that wouldn't affect whether the system has dedicated or shared video RAM.
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current reviews & memory benchmarks have shown the 300 ddr3 ram shows no Performance improvement over Prime ddr2. developers here can probably make the most it though.
Finally you all have your own section. CONGRATS!
---------- Post added at 10:33 AM ---------- Previous post was at 10:25 AM ----------
a.mcdear said:
They all actually have 1GB of RAM. The difference is simply that some chips separate the video RAM and the system RAM, where others are able to use a shared memory space and dynamically allocate RAM to video as necessary.
Most likely, devices with higher memory bandwidth will be able to use dynamically allocation because the extra bandwidth provides the overhead necessary to minimize performance impacts should the GPU need to pull more memory from the system on the fly.
On Tegra2 devices which were limited to 1 channel of 32bit ddr2, there is much less memory bandwidth than on tegra3 with ddr3 (or dual channel ddr2 like ipad). In this instance, it would cause a performance hit to have to free up extra memory from background tasks and then reallocate it to the gpu - so the solution is to just partition the entire memory into two sections each of which are generally large enough for both their respective duties: video ram and system ram.
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he makes a great point. although no memory improvements shown in benchmarking, what he is saying could be seen as an improvement though. good info.
300 is not the only Tegra3 kid on the block with new DDR3 ram. Toshiba just released their Tegra3 Excite 10.1 in. tablet. it has gorilla glass, 1280x800 display, and 1gb DDR3 ram. available in 16 or 32gb. you can also order a 64gb.
demandarin said:
current reviews & memory benchmarks have shown the 300 ddr3 ram shows no Performance improvement over Prime ddr2. developers here can probably make the most it though.
Finally you all have your own section. CONGRATS!
---------- Post added at 10:33 AM ---------- Previous post was at 10:25 AM ----------
he makes a great point. although no memory improvements shown in benchmarking, what he is saying could be seen as an improvement though. good info.
300 is not the only Tegra3 kid on the block with new DDR3 ram. Toshiba just released their Tegra3 Excite 10.1 in. tablet. it has gorilla glass, 1280x800 display, and 1gb DDR3 ram. available in 16 or 32gb. you can also order a 64gb.
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500 bucks for a 32gig.... No sir.
Sent from my SPH-D710 using xda premium
In the spec section Amazon lists the TF300 as having 2GB of RAM...I'm sure its a mistype though.
http://www.amazon.com/Transformer-TF300-T-B1-BL-10-1-Inch-Tablet/dp/B007P4YAPK
Running 2.6 Kernel mine shows 983,2 MB of Total RAM.
After installing some nec. apps it drops down from ~850 MB to ~630 of
available RAM. After removal of most BW it shows ~820 MB of free RAM.
It's normal behaviour. It just acts like the Prime. Open it und you'll see a Prime with some faster MemoryChips & an optimized board design
I just hated my Prime for many reasons, but I really love this one
They've improved very much here
I saw this phone has 2.5 GB of ram and i read that it is because it has the other part for the system but i have also a Nexus 6 and it runs smoother.
This phone doesn't have better multitasking and i think it is for the missing part of RAM memory.
Moto X Pure has 700MB of Android OS
Nexus 6 has 478MB...
I have tried CM13 and Stock and truepure.
No.
That is not...
Just no...
Our phones have 3gb Android pre allocates as much RAM as it can the best solutions to your issue is just load a custom ROM if you go with asop based 6.0.1 it will mostly make this phone a Nexus
One way to look at it...
Why does your GB variant (16, 32, 64) not actually have that much available storage? The system is allocated some of this storage. RAM is no different.
As far as system allocation differing between different phones, there are potentially several reasons. Remember that the MXPE is not pure vanilla with Moto having some of their stuff baked in. This can make the difference. Also differences in Android version can be a culprit along with differences in any custom ROMs.
Some is likely allocated for the GPU, also there is zram (think swap in RAM or compressed VM, much faster than disk r/w), etc...
yes , i am with stock rom and just rooted , there is 2.5gb ram and free available always around 350 to 500mb maximum available , it does restart apps in 5 or 6 apps multitasking
Hello! I am thinking about changing my poor old Oneplus One for this beast. But I am worried about the RAM quantity. At this moment I have 3GB RAM and I don't know if 4 will be enough.
Isn't TouchWiz 4GB = 3GB AOSP debloated?
silverkin said:
Hello! I am thinking about changing my poor old Oneplus One for this beast. But I am worried about the RAM quantity. At this moment I have 3GB RAM and I don't know if 4 will be enough.
Isn't TouchWiz 4GB = 3GB AOSP debloated?
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Of course it is enough + you won't keep your phone for more than 2-3 years. TouchWiz got better, but not perfect. My phone still has ~1.5 GB of Ram left. My notebook has 4 GB Ram with fast SSD, don't see any slowdowns on Win 10 Pro.
With the poor ram management 2.5 GB is enough because at no point it uses more than that on our phones. I have apps refreshing when I come back but only half of ram is being used.
in my opinion, 4gb is not enough..... For that kind of high-end phone, samsung should have put 6Go at least into it. I'm talking about ram managment which is pretty bad in android and when you take a look at speedtests (even if this is not reflecting real daily uses) you can see than phone with 6go of ram are able to keep many apps in memory way better than the s8. When you start to run heavy apps or games, the built-in memory killer kills a lots of background app and then when you need to switch back into an other recent app, the phone almost reload it :'( That's frustrating
4GB Ram is enough. More RAM means more apps running in background which means more battery consumption. So 4GB looks a good balance here atleast for S8 which has only 3000 mah battery.
i don't think so excuse me. Of course, more ram maybe means more battery consumption but i prefer that and kill apps runing in background manually to keep battery life rather than the os kills things that i still need :/
When you have 4gb then 4gb isnt enough, when you have 6gb then 6gb isn't enough... its never enough.
4GB is enough for most any smartphone. I also have a OnePlus 3 with 6GB ram and while it can keep more programs running in the background, it never totally accesses the entire 6GB ram. Read this XDA article on RAM: https://www.xda-developers.com/the-ram-conundrum-do-we-really-need-6gb-ram-on-android/
4 is enough, and please after buying it do not ask about why just a little of it is free! The ram is for holding services and apps in background so cpu should not work again to bring them up, if it's filled do not be sad, it's natural.
roro97230 said:
in my opinion, 4gb is not enough..... For that kind of high-end phone, samsung should have put 6Go at least into it. I'm talking about ram managment which is pretty bad in android and when you take a look at speedtests (even if this is not reflecting real daily uses) you can see than phone with 6go of ram are able to keep many apps in memory way better than the s8. When you start to run heavy apps or games, the built-in memory killer kills a lots of background app and then when you need to switch back into an other recent app, the phone almost reload it :'( That's frustrating
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Why should you want to keep many apps in memory? The S8 loads them so quick anyway.
Who needs in real day use to keep in memory 5-6 games plus 6-7 apps ? That's what they are doing in speed test , but in every day use it's not need for 6-8 GB ram in this moment. In my opinion for the manufacturer it's simpler to put more ram in a phone instead a better over all optimization.
I've read about about stability concerns of reducing swap size but honestly i feel like im not getting the full potential of my 8gb ram phone.
It just doesnt wanna go over %70 ram that is 5.2/8gb. 0.7gb is system partition so it usually keeps 2gb ram free.
I want to reduce that free ram. I want the phone to hover around %85-90ram usage not %70.
I am rooted. Any help is appreciated