Database Develop

Sd vs OnBoard Memory

Hey guyz....ne idea whts the speed comparisions between a class 6 sdcard and the on board memory ? Which is faster ? Well i know onboard usually are the fastest...just wondering the speed difference....

Not sure...but the /system is already filled enough whereas your ext partition on ur class 6 card is only ~1/6 - 1/5 filled so you have plenty of memory to mess around with. I think the read/write rate (6mb/s) iis about the same.

alritewhadeva said:
Not sure...but the /system is already filled enough whereas your ext partition on ur class 6 card is only ~1/6 - 1/5 filled so you have plenty of memory to mess around with. I think the read/write rate (6mb/s) iis about the same.
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Yea c thts wht i was wondering...then as long as we have a big enough class 6 sdcard...shudnt hero run just as fast on the G1 as the original when using swapper?

Galaxy S has more NAND memory hidden?!?!

http://android.modaco.com/content-page/312298/got-the-stalling-problem-rooted-try-this/page/180/#
if im not wrong.. there is a total of 2GB oneNAND space on this moviMCP chip that Samsung uses.. It has 16GB moviNAND and 16G bit (2GB) of oneNAND for random access.. 1.4GB is accounted for, another 600MB is still unknown..
since this moviMCP is configurable which is confusing but the moviNAND is sequential, thats why is slower.. OneNAND has NOR interface which makes it suitable for random access and can hv 20MB/s transfer speed so the stl blocks should be sitting on it..
http://www.samsung.com/global/busin...nmemory/downloads/moviNAND_mmc4_3_support.pdf
KLMAG8DEDD
http://www.careace.net/wp-content/uploads/2010/06/galaxy-s-disassembly-14.jpg
Someone verify my findings?

One question. When you put a 2gb memory card into a PC, do you see the full 2gb?

No you wont see 2GB but definitely more than 1.4gb!

I imagine it holds recovery image of android system

dseo80 said:
I imagine it holds recovery image of android system
Click to expand...
Click to collapse
but if it doesn't....

only around 1.8gb exists on a 2gb space. minus some for system usage, that's about right....no magical space except only in dreams.

But the 16Gbit we are speaking of don't have to be counted *1024 instead of 1000 again again when calculating in GiB. That are really full 2GiB, 2048MiB and so on. Did you think raspdeep, one of the top devs here would be that much of an idiot?
Sent from my GT-I9000 using XDA App

[Q] how can i increase ram of my samsung galaxy ace

how to make virtual ram in galaxy ace rooted s5830.....running ics'ed by snowpluralism....
n do it helps in smooth runnings...
and any disadvantages:highfive:

Ashish924 said:
how to make virtual ram in galaxy ace rooted s5830.....running ics'ed by snowpluralism....
n do it helps in smooth runnings...
and any disadvantages:highfive:
Click to expand...
Click to collapse
Well, you can use a swap partition. CM7+ also has ram compression.
Sent from my GT-S5830 using Tapatalk 2

NathanBookham said:
Well, you can use a swap partition. CM7+ also has ram compression.
Sent from my GT-S5830 using Tapatalk 2
Click to expand...
Click to collapse
can u help me in that...i dont know how to do it...n also is it safe and effective....thanks

Ashish924 said:
can u help me in that...i dont know how to do it...n also is it safe and effective....thanks
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Click to collapse
Google for it. XDA is against spoon-feeding..!!
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Don't be a noob. Be a newbie..!!
Details here.
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I've tried swapper 2, it's good. But have to understand each term they use in the app. Currently I'm now on RamExpander. Very good.
Sent from my GT-S5830 using xda app-developers app

DuckyDawn said:
I've tried swapper 2, it's good. But have to understand each term they use in the app. Currently I'm now on RamExpander. Very good.
Sent from my GT-S5830 using xda app-developers app
Click to expand...
Click to collapse
For me Ramexpander say is not compatible with Ace.

I heard swapping partition from sd card to increase the ram, sd card might get damaged!!, is it true?

Reduces SD Life so yes.
Sent from my iPhone

but i guess you will change your sd card before it gets damaged so much, that you will notice.
i only had this once on a USB pendrive. it loses data since some weeks ago. but its about 8 years old.
lets say that todays SD cards have better lifetime than years old USB sticks. lets also say that you use your sd card more often than i used this stick (backups later car-radio). so we can say your SD card might have a bit less lifetime. lets say 6 years. in 6 years you will (most likely) have a new phone, sd cards are "oldies" and if not, 1TB cards are state-of-the-art.
so....yes you loose lifetime but i dont think you will use it till it "dies"

CJCord said:
but i guess you will change your sd card before it gets damaged so much, that you will notice.
i only had this once on a USB pendrive. it loses data since some weeks ago. but its about 8 years old.
lets say that todays SD cards have better lifetime than years old USB sticks. lets also say that you use your sd card more often than i used this stick (backups later car-radio). so we can say your SD card might have a bit less lifetime. lets say 6 years. in 6 years you will (most likely) have a new phone, sd cards are "oldies" and if not, 1TB cards are state-of-the-art.
so....yes you loose lifetime but i dont think you will use it till it "dies"
Click to expand...
Click to collapse
It really depends on use. When I swapped i ate through my sdcard in less than 6 months.. so there you go. Keeping low swappinness will increase sd card life, but it does depend on use.

increasing ram by swapping sd card is effective to what extent...can any body tell me....does it bridge the gap of our low ram...
AND ANY OTHER DISADVANTAGE THAN REDUCING SD CARD LIFE

Blackstard said:
For me Ramexpander say is not compatible with Ace.
Click to expand...
Click to collapse
Huh? I Don get u cozy mine is working fine. Downloaded from blackmarket
Sent from my GT-S5830 using xda app-developers app

Ashish924 said:
increasing ram by swapping sd card is effective to what extent...can any body tell me....does it bridge the gap of our low ram...
AND ANY OTHER DISADVANTAGE THAN REDUCING SD CARD LIFE
Click to expand...
Click to collapse
That why the requirement need class 10 SDcard

You can use CM7 that uses less RAM!.. I just went from CM10 to CM7 and it really is an improvement for ACE as it uses a bit less RAM and that is noticeable.

thanx but no cm7
Jimmyslam said:
You can use CM7 that uses less RAM!.. I just went from CM10 to CM7 and it really is an improvement for ACE as it uses a bit less RAM and that is noticeable.
Click to expand...
Click to collapse
thanks...but i dont want cm7 as i dont like it....i want it in a stock rom...btw thanx

Ashish924 said:
how to make virtual ram in galaxy ace rooted s5830.....running ics'ed by snowpluralism....
n do it helps in smooth runnings...
and any disadvantages:highfive:
Click to expand...
Click to collapse
there are quite a few apps for increasing the ram like ramexpander and swapper...
but before using these apps remember that the read and write speed of sd card(which is secondary storage) is vey less as compared to that of the internal ram.. and probably thats why ram is very expensive as compared to sd card...
so if you use these apps may take a bit longer to start and even the best of sd cards i.e. the class 10 one won't last longer than 6 months...

Increasing ram
Hi i install ram manager pro apk on gts5830i then i create a swap file 128mb using this apk, then on sd card i see swap file img does it mean my phone ram increased.... i didn't install any kernel for it... plz does tell me if it increase ram or not...

I tried something on a other phone from my neighbor. is a huawei with same specs than the galaxy ace..
I moved apps to SD card with link2SD and created a Swap file in the internal storage.
The internal storage is much faster than the SD card and much better for swap file.

sahil chandel said:
Hi i install ram manager pro apk on gts5830i then i create a swap file 128mb using this apk, then on sd card i see swap file img does it mean my phone ram increased.... i didn't install any kernel for it... plz does tell me if it increase ram or not...
Click to expand...
Click to collapse
What is RAM
Random Access Memory (RAM) is temporary data storage that the CPU uses during calculations. The more RAM a device has, the more calculated results the CPU can store - which means less time the CPU has to do the same thing over and over again. In other words, the CPU can check RAM to see if it has already made a particular calculation in the recent past. If it has, it can use the pre-computed results instead of wasting processing time recomputing the same calculation. In short, more RAM means a more efficient (and faster) device.
SWAP
What is SWAP
Swap is, in short, virtual RAM. With swap, a small portion of the hard drive is set aside and used like RAM. The computer will attempt to keep as much information as possible in RAM until the RAM is full. At that point, the computer will begin moving inactive blocks of memory (called pages) to the hard disk, freeing up RAM for active processes. If one of the pages on the hard disk needs to be accessed again, it will be moved back into RAM, and a different inactive page in RAM will be moved onto the hard disk ('swapped'). The trade off is disks and SD cards are considerably slower than physical RAM, so when something needs to be swapped, there is a noticeable performance hit.
Unlike traditional swap, Android's Memory Manager kills inactive processes to free up memory. Android signals to the process, then the process will usually write out a small bit of specific information about its state (for example, Google Maps may write out the map view coordinates; Browser might write the URL of the page being viewed) and then the process exits. When you next access that application, it is restarted: the application is loaded from storage, and retrieves the state information that it saved when it last closed. In some applications, this makes it seem as if the application never closed at all. This is not much different from traditional swap, except that Android apps are specially programed to write out very specific information, making Android's Memory Manager more efficient that swap.
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Credits go to CarlDeanCatabay

[Q] HTC desire C storage problem!!

when i read at this page.... gsmarena.com/htc_desire_c-4759.php
at the storage it has "4GB include" but the device has 90MB rom and 940MB memory...
anyone please explain that
p/s this is my first post and i'm from vietnam, sorry for my bad english.
hello all you guy :good:

Welcome to XDA
I don't exactly know how it works but you only get around 1GB of space you could actually use!
Sent from my TF300T using xda app-developers app

Usuasable memory..
You are right. Both the websites and the box in which the phone is shipped shows the internal memory to be 4GB. But in reality this storage space is also used to store the phone's software. So the 4GB is actually partitioned into two parts, one storing the software and another part as the actual usable memory which can be used by the user. So you get a little less than 1GB of internal memory.. around 935mb or something. To know more.. go to HTC's website.

actually its split in three parts
1 part for the OS,sense,etc
2 0.94 gb for apps
3 ~90mb for storage (media,pictures etc)

bogdy5 said:
actually its split in three parts
1 part for the OS,sense,etc
2 0.94 gb for apps
3 ~90mb for storage (media,pictures etc)
Click to expand...
Click to collapse
so part 1 take for 3GB??

apparently ICS+Sense 4.0+bloatware=3gb
it's like the galaxy s4, from 16gb you get ~10gb of user storage
imo this is just a marketing scheme something like internet speed ads. they say "internet speeds up to 150mbps" not 18mBps(even though it's the same thing) because ppl like big numbers ;the difference is you still have the same internet speed while with the phone the 4gb mem is a lie ....unless you format the whole internal memory and use the phone as a throwing weapon....

bogdy5 said:
apparently ICS+Sense 4.0+bloatware=3gb
it's like the galaxy s4, from 16gb you get ~10gb of user storage
imo this is just a marketing scheme something like internet speed ads. they say "internet speeds up to 150mbps" not 18mBps(even though it's the same thing) because ppl like big numbers ;the difference is you still have the same internet speed while with the phone the 4gb mem is a lie ....unless you format the whole internal memory and use the phone as a throwing weapon....
Click to expand...
Click to collapse
thank bro

bogdy5 said:
apparently ICS+Sense 4.0+bloatware=3gb
it's like the galaxy s4, from 16gb you get ~10gb of user storage
imo this is just a marketing scheme something like internet speed ads. they say "internet speeds up to 150mbps" not 18mBps(even though it's the same thing) because ppl like big numbers ;the difference is you still have the same internet speed while with the phone the 4gb mem is a lie ....unless you format the whole internal memory and use the phone as a throwing weapon....
Click to expand...
Click to collapse
and even though it has 512 MB RAM, we just get only 414 MB

Actually it is 512 or 414 mob of RAM..?

akashgartia said:
Actually it is 512 or 414 mob of RAM..?
Click to expand...
Click to collapse
Our phone has 512mb RAM but the android system itself uses ~100mb so we get to use only 414mb

Memory speed - really so slow?

Hi,
please check you memory speed using AndroBench. The most important is Random Write. At my 4xHD I get only 0,21MB/s (just after trim using LagFix). It is terribly slow! Eg. Galaxy S3 has 3x faster memories. Does LG really put so slow memories into fast phone? It's hard to belive that.
Bye,
sxill

sxill said:
Hi,
please check you memory speed using AndroBench. The most important is Random Write. At my 4xHD I get only 0,21MB/s (just after trim using LagFix). It is terribly slow! Eg. Galaxy S3 has 3x faster memories. Does LG really put so slow memories into fast phone? It's hard to belive that.
Bye,
sxill
Click to expand...
Click to collapse
I get 1014 internal storage speed on 4.4.2 kitkat cm11.It's more than enough while my class 10 sd card have a score of 630.Something is wrong with your device clear some space up and don't use trimming etc. they are for bad chips such as ones in samsung devices.Never felt slowness due to trimming stuff.Also use SIO it's the fastest for our device and I recommend you to change readahead cache to 1 or 4 mb (4 mb more stable) (tested using diff apps)

ottomanhero said:
I get 1014 internal storage speed on 4.4.2 kitkat cm11.It's more than enough while my class 10 sd card have a score of 630.Something is wrong with your device clear some space up and don't use trimming etc. they are for bad chips such as ones in samsung devices.Never felt slowness due to trimming stuff.Also use SIO it's the fastest for our device and I recommend you to change readahead cache to 1 or 4 mb (4 mb more stable) (tested using diff apps)
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Click to collapse
I don't know what you are talking about or what magic cm11 did, but it is a fact that LG used a painfully slow internal sdcard on 4x.
Sent from my Optimus 4X HD using XDA Premium 4 mobile app

[email protected] said:
I don't know what you are talking about or what magic cm11 did, but it is a fact that LG used a painfully slow internal sdcard on 4x.
Sent from my Optimus 4X HD using XDA Premium 4 mobile app
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Click to collapse
Well I've seen slower internal sd cards.But CM11 does improve I/O speeds.I get the worst IO in 4.1.2 and 4.3.2. 4.2.2 is fine too but 4.4.2 have the best speeds.Maybe it's slow but it is enough.Don't tell me about lags in asphalt etc.They are poorly optimized gameloft games so it's their fault.