ask the experts
someone could tell me what are the advantages of using
compcache
Dalvik-cache on / cache
They can be used without app2SD, and no swap partition ...?
performance enhancing?
when should you use?
greetings and thank you!
You might want to ask about the advantages of asking questions in the Q&A area while you're at it. :-D
As far as Dalvik-cache on /cache, it's to save on system space. Compache is a way to boost performance (from my understanding, it's similar yet different to a swap setup).
You don't need A2SD or a Swap Partition for either. As for when to use it. . . well, after you've done some research.
hahah I wonder this too.
but I like using compcache...it boost responsiveness when I use massive programs.
Hi there,
Is there a way to make the add the internal SD card to the main memmory? So that there would not be an internal SD card anymore?
I do not mean swapping the moutpoints around so my External_SD becomes my primary and my internal my second....
I want to get rid of the internal one alltogether (adding it to main memory).
I figure that I'll have to format the storage in a certain way... would that do it?
Can someone tell me step by step what to do?
I do have CW-mod installed.
I did search the forum, but couldnt find anything conclusive. Just hints that it should be possible...
If there already is a thread where all this is explained, please point me to it, because I couldn't find it.
Thanks,
Pfeffa-rah
I don't think this is possible , never heard of someone who did it
I have no idea how to do that. My question is... why would you want to do that?
Having an internal_sd partition adds the benefit of having big app data (such as those in Gameloft games) sit in a very fast partition and still be called "sddata".
Also, it's mountable via PC so everything in there can still be backed up. So it's best of both worlds really.
This was discussed some time ago in this thread: http://forum.xda-developers.com/showthread.php?t=1013575
There were ideas on how to remount the cards at boot. I myself come to the conclusion that since more phones start to behave in this way, app developers will have to start dealing with it. It just sucks they are mostly slow on the uptake. My main problem was the Spotify cache location being hard coded so I resorted to hack the Spotify apk.
PS. salisbury_steak: What is it with people like you that every time someone has a question on how to do something, your immediate response is "But why would you want to do that?!".
sorech said:
PS. salisbury_steak: What is it with people like you that every time someone has a question on how to do something, your immediate response is "But why would you want to do that?!".
Click to expand...
Click to collapse
That was actually an honest question.
I wanted to understand why he wanted to do it. (i.e. What would be the advantages of it.) There was no supposed sarcasm in there.
how about the ability to install 5x more applications?
Having that stupid 5gb partition as sd card and the real sd card as a sub folder is retarded...
My 32GB class 10 cars is a lot faster than the internal one.
The internal 5gb memory is MUCH TOO SMALL!!! Most apps don't allow you to store data on the external card. If you like me and many others install some games that download aditional data + a nav app that downloads maps for europe + some streaming music app like wimp that can cache music for offline play then you are ****ed with LG's setup.
The setup CM7 uses solves the main problem but effectively wastes the 5gb by mounting it at emmc where like 0,0001% of apps are able to access it.
So adding those otherwise wasted 5gb to the main memory would be great. But i have not seen any solution to that yet :-(
Thank you Gensplejs for explaining that to them. I had no idea how to reply to that since it seemed so obvious to me.
This thread was ment to be a question about how to do it and not to discuss the usefullness of it. That is where I lost the way in other threads...
So, thanks for your replys all (realy).
But now, back On-Topic:
How would I do it?
Sent from my LG-P990 using XDA Premium App
Please don't blame me if you tried it and you screwed up your phone.. It's your choice...
Well, I don't know if this would work, but this is how I would do it (accepting the fact that I'd loose almost 2GB of /data's free space):
1. Format your internal sd card to the same file system as your /data partition is (ext3 or ext4)
2. Copy every file from /data 1:1 to your sdcard (cp -R /data/* /sdcard)
3. I don't know when and where the partitions are mounted (maybe init.rc??)...anyways change the target there and let /data point to the internal sd card partition (so it is ensured that it is mounted automatically to the new location)
4. Reboot and keep your fingers crossed
I think i figured how to do it in theory. First we need some free space at our microsd to cp /data. Then we should repartition with fdisk /dev/block/mmcblk0p8 and p9 into one partition and change vold.fstab to mount only externalsd at /sdcard as we do when we swap partitions. In theory it should work but i cant test it right now or make a script since ve gone vacations and i dont have a pc to restore in case of error
I agree.. certain apps wont store to sdcard.. its better to use the whole 8gb as phone storage, and use external sdcard as default sdcard.
Sent from my LG-P990 using XDA App
What ive found till now is that sd swapping is easy. You can do it by tweaking only vold.fstab. But repatriationing is a pain in the ass. Looks like lg has "faulty" partitions or something and to do it you must mesh up with with almost half partitions.
I had to rebuilt boot lgdrm recovery data and sdcard to make em half work. So it probably isnt worth the trouble. Also I think init.rc is built on the boot. So just remounting internal sd to /data wont work either.
sectors is not space
it says 7996, so thats 8GB
i saw it in hurry. the brain sometimes belives whats he want to belive
sorry
New to XDA
Hello everybody,
I'm new to android and i'm trying to find out how to solve the problem posted in this thread.
I see you've got the awnser but i don't know how to do this.
I've been searching google and XDA for ever but i just can't find the awnser.
Could you make a step by step howto or point out to a post how to do this.
I mean converting your external sd to ext4 and change the mounting points.
I'm a complete nood, i didn't get adb to work on my pc, ext4 recovery is not for the p990 2x.
I've read something abbout changing fstap for swapping te mounting points for sdcard and emmc, witch is also ok for me, but formating to ext4... wel i frankly don't know how to do this.
I'm quite stuk on this.
The only partitioning experience i've got is Gparted in Ubuntu or repartitioning in Windows 7.
Thans in andvance!
Greetz,
JMG
http://android.modaco.com/topic/347...-partitions/page__gopid__1821791#entry1821791
check this
you can expand data partition , but there is a limitation of 1.75gb
Thanks davjan
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Jean Michel Gaar said:
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Click to expand...
Click to collapse
what rom are you using? is your phone rooted?
swapping internal with internal sd is very easy
and most of the roms here on xda are ext4 , if you instal one of them they autoconvert to ext4
Jean Michel Gaar said:
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Click to expand...
Click to collapse
I you read the link provided you'll see that it makes what you want: grow internal filesystem = lower SDcard usable space. The only thing is that it doesn't seem possible is to use the whole space: system limitation. 75Markus tried high /system and /data values and phone didn't work.
See in his Mediafire Folder, 'Nvflash + guide for changing Partitions:
http://www.mediafire.com/75markus
Ext4 is now common with custom ROMs (in fact all of them).
You should search in sd-ext partition system, which was designed to artificially expand filesystem on older phones using an 'ext' partition. I didn't heard anybody using this on O2X.
If you use CyanogenMod based ROMs, your external card will be mounted ad /sdcard by default.
Switching internal and external SD
Thanks guy's,
I'll check it out.
I've been using cyanogenmod 7.1 stable with vorkkernel 20110208.
But that gave me batterydrains while using maps and nextvid ate the same time (while i'm driving).
Now i'm trying MIUI 1.11.11 with latest swift extreme.
But MIUI is very buggy so i'm thinking of going back to CM.
The only thing is that my phone won't boot with the latest vorkkernel.
Hi all,
I have tried to boot with µSD card. It's a cool idea for people who share their Archos G9 tablet or if you are paranoid like me (wipe a SD-card is easier than wipe a full SSD Archos).
I test with Class 6 16Gb Samsung µSD. I feel that it's fastier on µSD than SSD.
If somebody is interested by a howto or a video, ask kindly me
Thaolia
Hi,
a howto would be great to have
Tha0lia said:
Hi all,
I have tried to boot with µSD card. It's a cool idea for people who share their Archos G9 tablet or if you are paranoid like me (wipe a SD-card is easier than wipe a full SSD Archos).
I test with Class 6 16Gb Samsung µSD. I feel that it's fastier on µSD than SSD.
If somebody is interested by a howto or a video, ask kindly me
Thaolia
Click to expand...
Click to collapse
Are you booting from and EXT4 partition on the SD card ? That might explain the performance boost, one of the thing we can do in the future is have an EXT4 partition on the internal storage of the device and run the os from there, that gets the speed up quite a bit... Same as $auron di with UrukDroid for the Gen8.
TjaXanK said:
Are you booting from and EXT4 partition on the SD card ? That might explain the performance boost, one of the thing we can do in the future is have an EXT4 partition on the internal storage of the device and run the os from there, that gets the speed up quite a bit... Same as $auron di with UrukDroid for the Gen8.
Click to expand...
Click to collapse
Unfortunately, gen9 is a bit more complicated for this...
I created a thread regarding this with some information I gathered if someone is interested. Take a look here.
Can we have an howto?
With Letama' post (http://forum.xda-developers.com/showthread.php?t=1395797),
I decide to work on rootfs img with a menu for choose your data partition. It's safer than all of SSD on a µSD.
can you please give me a how to
thanks
So, you're saying you can run the G8 off the external SD? If so, I'd be interested in this.
Hello everyone, after temp fixing my laptop with ubuntu I mounted my stock SD and I figured out that it didn't have any ext3 partition only a fat32 partition...
Now I'm wondering what isthe best use of partitions on the sd...
From what I've learnt in various 3D ( unluckily outdated):
ext2: seems to be good, fast, linux native, no journal ( no useless data written on sd)
ext3: like ext2 but with journal ( dunno if on latest stock rom is optimized)
ext4: not supported by stock rom
swap: it might shorten sd life, but I didn't understand if it's really useful nor if is supported
fat32: useful for photos, videos, write data easily with windows...
Concluding and considering that I'm using latest stock rom(for the moment): ext partitions runs app really faster than fat32 and allows all app's cache to be written on ext partitions rather than internal memory?
Swap partition is worth of it(in which size?)?
[OT]Aside from benchmark in daily use there is difference between class 4 and 10 cards???
Thank you, and forgive me for any grammatical error ^^
What's the reasoning behind wanting ext partition on your sdcard? Do you really need that much room for apps and cache?
I think internal storage is much more efficient (faster) for loading apps.
As for swap, really unnecessary on this phone, performance will decrease hard,ram is much faster than flashmem and android's native task killing does an adequate job of freeing ram for active apps to run.
Also benchmark on the sdcard measures 2 things, read speed and write speed so faster usually equals faster. That said, you're probably not going to notice a huge difference on stock rom unless you transfer a lot of files to your PC.
Oh well, I've still a lot of free space, it was asking for the future ^^
BTW thank you, I've cleared all my doubts!
Ok this might be a noob question but im going to ask it anyway..
Whats the point of creating one on the sd card?
Is the only benefit that i can move my apps to the sdcard with tools like link2sd?
Or can i also let the phone think i have more internal memory?
Im running the jellybam rom but i cant find any info about ext partitions, anyone who can explain it to me?
Thanks and enjoy your weekend guys
Coldstream said:
Ok this might be a noob question but im going to ask it anyway..
Whats the point of creating one on the sd card?
Is the only benefit that i can move my apps to the sdcard with tools like link2sd?
Or can i also let the phone think i have more internal memory?
Im running the jellybam rom but i cant find any info about ext partitions, anyone who can explain it to me?
Thanks and enjoy your weekend guys
Click to expand...
Click to collapse
I don't know that there is an advantage for ext3 with a flash drive or SD card. See:
http://www.phoronix.com/scan.php?page=article&item=linux_f2fs_exfat&num=1
The article is mostly about f2fs vs exFAT, but some comments included.
"Earlier Phoronix tests have shown that F2FS from flash storage is already generally competitive with the popular Btrfs and EXT4 Linux file-systems."
"Seeing a user-space implementation of the Microsoft file-system outperforming the in-kernel "Flash-Friendly File-System" came as a shock."
With already slow SD transfer rates due to the media itself, I doubt you'll see an improvement in system performance. Maybe someone here has a better idea. I don't. But the worst you can do is nothing.
My only concern would be hooking up the 970 to a Windows machine; "stock", Windows may not see the extra ext2/3 partition. You'd need Linux to do that.
Hmm i've readed the article but cant find any info about what im looking for..
Anyone else who can help me?