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Got the 'stalling' problem? Rooted? Try this...


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#61
ragflan

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Paul, you've had the Desire and now the Galaxy S, which device would you recommend for performance. I heard The Galaxy had better performance in terms both CPU usage and graphics in games. Besides the obvious advantage of a larger and better screen and ignoring touchwiz vs sense, which phone would yousay performs better? Thanks in advance Paul. I ask because I wanted to get Droid X but I heard that its for US only and I'm in Australia. So either desire or galaxy are the best options ...

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#62
us1111

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If you have a fast (>=class 6) sdcard, wouldn't it be an option to place the files there? I did not have time to root my phone, but you could use (i.e.) hdparm to check the speed of your external memory and then choose where to put the files..

Edited by us1111, 30 June 2010 - 12:17 PM.

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#63
PaulOBrien

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Would using NAND cause any noticable life shortening of the chip?

No, not at all, it's what it's designed for!

P

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#64
woutf

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If you have a fast (>=class 6) sdcard, wouldn't it be an option to place the files there? I did not have time to root my phone, but you could use (i.e.) hdparm to check the speed of your external memory and then choose where to put the files..

Seems logical enough. Although accesstime is more important than speed in this case. Is there someone out there who could run some accestime tests on the internal sd versus s a class 6 card?

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#65
Shibby_nl

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I have read some different experiences from users, mysef included.
I can't notice any lags, it is my first android though. I don't have any experience to compare with.

Isn't it also possible that there are different types of internal sdmemory installed?
The fast one's were out of stock that batch?
So maybe a speedtest is needed with a standard program.

Does anyone know a suiteble app for this?

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#66
ToetX2

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The bad results are wondering me,
Samsung uses there own moviNAND chips for this phone, witch should be able to reatch a speed of 54MB/s

Foto of the NAND chip on the phone: http://www.careace.n...assembly-14.jpg
Info from thad chip: http://www.samsung.c...s_MoviNAND.html
Actualy those chips can be used for >=class6 SDcards....

Realy wired, but i hope it is a software problem....

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#67
mbr01

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The bad results are wondering me,
Samsung uses there own moviNAND chips for this phone, witch should be able to reatch a speed of 54MB/s

Foto of the NAND chip on the phone: http://www.careace.n...assembly-14.jpg
Info from thad chip: http://www.samsung.c...s_MoviNAND.html
Actualy those chips can be used for >=class6 SDcards....

Realy wired, but i hope it is a software problem....


(He, Toetx en WoutF van tweakers.net :lol:)

Did some tests, with rather weird results. Used the program from android market called J BenchMark 1.0. I compared the internal NAND flash to the sd-card that I put in (just a plane old regular 1GB card). Maybe some one can test on a different device. I'm not sure which part of the NAND it's testing as there are just options for internal or external sd. I tested 4 times each, differs about 10%.

Internal NAND
10MB, 2kb
write = 0.11 MB/s
read = 3.11 MB/s

10MB, 4kb
write = 0.22
read = 4.93

10MB, 8kb
write = 0.41
read = 7.34

SD-card
10MB, 2kb
write = 3.23 MB/s
read = 4.56 MB/s

10MB, 4kb
write = 7.81
read = 10.35

10MB, 8kb
write = 13.51
read = 20.0

Edited by mbr01, 30 June 2010 - 02:51 PM.

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#68
Shibby_nl

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(He, Toetx en WoutF van tweakers.net :lol:)

Did some tests, with rather weird results. Used the program from android market called J BenchMark 1.0. I compared the internal NAND flash to the sd-card that I put in (just a plane old regular 1GB card). Maybe some one can test on a different device. I'm not sure which part of the NAND it's testing as there are just options for internal or external sd. I tested 4 times each, differs about 10%.

Internal NAND
10MB, 2kb
write = 0.11 MB/s
read = 3.11 MB/s

10MB, 4kb
write = 0.22
read = 4.93

10MB, 8kb
write = 0.41
read = 7.34

SD-card
10MB, 2kb
write = 3.23 MB/s
read = 4.56 MB/s

10MB, 4kb
write = 7.81
read = 10.35

10MB, 8kb
write = 13.51
read = 20.0


The tests I did where not in tst mode so no cache clearing, only did them once for each buffersize

I have about the same results with a class 6 8gb sd-card, little bit slower actualy.

Internal Nand:
10MB, 2kb
write = 0.1 MB/s
read = 4 MB/s

10MB, 4kb
write = 0.18
read = 7.04

10MB, 8kb
write = 0.28
read = 13.51

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#69
krotwijk

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I'm not sure which part of the NAND it's testing as there are just options for internal or external sd


Looks like it's benchmarking the internal dram instead of nand.

PS Another tweakers.net user from Holland

Edited by krotwijk, 30 June 2010 - 03:15 PM.

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#70
VarunRai

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Hi! So I've rooted my SGS and got folder sizes of folders in /data/data.
Here's what it looks like :

1.5M /data/data/com.google.android.apps.maps/files
1.5M /data/data/com.google.android.apps.maps
9.5M /data/data/com.sec.android.app.sns/files/ReceivedFiles
9.5M /data/data/com.sec.android.app.sns/files
9.5M /data/data/com.sec.android.app.sns
4.3M /data/data/com.sec.android.app.samsungapps/cache
4.3M /data/data/com.sec.android.app.samsungapps
1.9M /data/data/com.swype.android.inputmethod/swypedata/Tutorial
2.9M /data/data/com.swype.android.inputmethod/swypedata
3.0M /data/data/com.swype.android.inputmethod
0 /data/data/com.android.MtpApplication/lib
0 /data/data/com.android.MtpApplication
2.5M /data/data/com.sec.android.widgetapp.feedsandupdate/cache
2.5M /data/data/com.sec.android.widgetapp.feedsandupdate
6.3M /data/data/com.android.vending/cache
6.3M /data/data/com.android.vending
1.1M /data/data/com.google.android.youtube/cache
1.1M /data/data/com.google.android.youtube
1.8M /data/data/com.gameloft.android.GAND.GloftAsphalt5.asphalt5/lib
2.3M /data/data/com.gameloft.android.GAND.GloftAsphalt5.asphalt5
1.9M /data/data/com.glu.android.skob2_free/lib
82.8M /data/data/com.glu.android.skob2_free/app_save
85.8M /data/data/com.glu.android.skob2_free
121.6M /data/data

Could someone please explain what sns is and why it's taking so much space. Or maybe suggest something I could do to reduce the space. I understand that I haven't yet reached the 130 mb mark, but if I did make the mod as suggested in the first post, would'nt having a smaller size of /data/data be better?? Or does it not make any difference once I've made the move?

And Paul, thank you so much! This was a much needed mod!

EDIT : Just removed a silly game which had loaded resource files on my phone memory. Down to 39 MB now. Will update on phone speed after using it tomorrow. :lol: Also, it's time I got an SD card.

EDIT 2 : Paul, small question. If we continue adding apps, what happens to the data that they store? Does it get saved in phone memory or NAND?

Edited by VarunRai, 30 June 2010 - 04:43 PM.

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#71
jUsT2eXy

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hey guys.. i followed this method but I get a 'low on space - database storage is getting low- warning" ...nks

what do I do now?

I guess the reason this happened is because I don't know how to find out how much space data or dbdata uses... how do I find out?


thanks

Edited by jUsT2eXy, 30 June 2010 - 05:59 PM.

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#72
jhansen

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Try at your own risk... if things go wrong you'll need to wipe your device. I have done this and it seems to have eradicated the 'stalling' i've seen on the device...

Nice discovery! this made a world of difference, now the device is usable :lol:
Samsung must have messed something up badly.

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#73
Arnon

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hey guys.. i followed this method but I get a 'low on space - database storage is getting low- warning" ...nks

what do I do now?

I guess the reason this happened is because I don't know how to find out how much space data or dbdata uses... how do I find out?
thanks

You need to either reverse the operation (reuse the /data/data.bak)
or do a selective linking to some of the bigger files to the sdcard
both methods have been discussed in this thread

Arnon

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#74
jUsT2eXy

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I uninstalled Asphalt and Google Earth... so that saved 70MB... but I want those two apps back... but I also want to stop the 'black' screen issue....

what is my best option in order to keep both?

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#75
Kilack

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Hi,

I have just got one of these and probably wouldn't have if I had read about the lag issues etc before hand.
Is it looking like it is a hardware issue and they just used poor internal storage?
in which case there isn't much that can be done apart from little workarounds to try and ease it a little...

Or is it a firmware issue?
Some are suggesting its a memory leak in touchwiz....

Has anyone heard if Samsung have said anything about these issues?

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#76
VarunRai

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I uninstalled Asphalt and Google Earth... so that saved 70MB... but I want those two apps back... but I also want to stop the 'black' screen issue....

what is my best option in order to keep both?


Um, maybe try re-installing them from Market. On beginning the installation I'm guessing an option as where to install it should come up. It did for KO Boxing 2.

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#77
FerdiBorbon

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how do u know if the job has completed successfully? can i check it on my phone anywhere?

And how to check how much space has been used on the NAND?

I did run into a permission denied when i was doing the (mv /data/data /data/data.bak) command..
i just retyped and all the way to reboot.... so did it work?

Edited by FerdiBorbon, 01 July 2010 - 03:33 AM.

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#78
Toreak

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I uninstalled Asphalt and Google Earth... so that saved 70MB... but I want those two apps back... but I also want to stop the 'black' screen issue....

what is my best option in order to keep both?


Undo the change by restoring /data/data.bak to /data/data and deleting /dbdata/data. Then follow Vitalijb post http://android.modac...p...t&p=1326894

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#79
Toreak

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how do u know if the job has completed successfully? can i check it on my phone anywhere?

And how to check how much space has been used on the NAND?

I did run into a permission denied when i was doing the (mv /data/data /data/data.bak) command..
i just retyped and all the way to reboot.... so did it work?


You need to have ROOT access else u get the permission denied error. Check space usage of /dbdata partition by running "busybox df -h". Once the steps are completed, you can run "busybox ls -l /data" and see that /data/data is linked to /dbdata/data.

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#80
FerdiBorbon

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You need to have ROOT access else u get the permission denied error. Check space usage of /dbdata partition by running "busybox df -h". Once the steps are completed, you can run "busybox ls -l /data" and see that /data/data is linked to /dbdata/data.


i do have ROOT i flashed to Paul's MCR R1 rom... can i just redo the steps from the start, will that be ok?

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