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.
Related
Hi there,
I've seen all the posts about formatting the sd card with the ext3 filesystem, but i would like to know if there is a way to modify the root filesystem to be ext as well?
I know this is probably a daunting task, but im willing to learn and want to jump into android headfirst. Any suggestions would be appreciated. Thanks!
Sent from my SAMSUNG-SGH-I897 using XDA App
That's basically what Voodoo does, except it uses ext4 not 3. No such thing yet for Froyo unfortunately.
Well this may be OCD of me , but I like knowing the file system isn't some virtual filesystem. I'm still learning advantages and disadvantages of different file systems, but I know that FAT (or RFS) is horrible.
It sounds like I'd need to write my own ext4 driver, flash a kernel with that driver, make a partition on the main 1GB internal memory as ext4, and install the ROM over that. Am I missing anything, or does that sound right? And if that is right, are there resources on how to do that task?
Thanks so much, everyone!
sigmaelectric87 said:
Well this may be OCD of me , but I like knowing the file system isn't some virtual filesystem. I'm still learning advantages and disadvantages of different file systems, but I know that FAT (or RFS) is horrible.
It sounds like I'd need to write my own ext4 driver, flash a kernel with that driver, make a partition on the main 1GB internal memory as ext4, and install the ROM over that. Am I missing anything, or does that sound right? And if that is right, are there resources on how to do that task?
Thanks so much, everyone!
Click to expand...
Click to collapse
first of all, you need to start out with source for 2.2, which is not available yet....so everything else is pretty much not going to happen until source is available. there are couple of 2.1 kernels that have already been built and they work pretty well.
**EDIT**
and source has been released for the i9000. we are close now
I've posted this question to the General section of the forum but with no answer. Mod please excuse me but I refuse to think that there is NO answer available.
I've installed a Micromod ROM , repartitioned my SD card and created an ext3 partition, so I do not have to worry about running low on memory on my phone. But I still see the amount of available Internal Memory going down. How is that ? I was under the impression that apps2ext would automatically put every app in the ext3 partition, isn't it the case ? Should I enable or change something in the setting of my phone ? Right now I have 107 mb available, going down.....
P_
pakalrtb said:
I've posted this question to the General section of the forum but with no answer. Mod please excuse me but I refuse to think that there is NO answer available.
I've installed a Micromod ROM , repartitioned my SD card and created an ext3 partition, so I do not have to worry about running low on memory on my phone. But I still see the amount of available Internal Memory going down. How is that ? I was under the impression that apps2ext would automatically put every app in the ext3 partition, isn't it the case ? Should I enable or change something in the setting of my phone ? Right now I have 107 mb available, going down.....
P_
Click to expand...
Click to collapse
Is dalvik cache also moved?
And data from those apps are still saved to the data partition. Only the apps (and depending on the configuration, dalvik cache) are moved to the ext3 partition. There's also the possibility of bad sectors.
You might want to ask these things in the thread of the ROM you've installed in the future. Chances are the dev would answer, and you wouldn't have to get riled up.
pakalrtb said:
I've posted this question to the General section of the forum but with no answer. Mod please excuse me but I refuse to think that there is NO answer available.
I've installed a Micromod ROM , repartitioned my SD card and created an ext3 partition, so I do not have to worry about running low on memory on my phone. But I still see the amount of available Internal Memory going down. How is that ? I was under the impression that apps2ext would automatically put every app in the ext3 partition, isn't it the case ? Should I enable or change something in the setting of my phone ? Right now I have 107 mb available, going down.....
P_
Click to expand...
Click to collapse
app data goes to internal, while the actual apk goes to the ext(sd card).
this doesnt belong in development. this has been answered many of times.
What is the disadvantages of No-RFS Overkill?
Why does some people avoid using it?
tanjiajun_34 said:
What is the disadvantages of No-RFS Overkill?
Why does some people avoid using it?
Click to expand...
Click to collapse
after some time you might encounter a corrupt file system.
It's only useful for high quadrant scores anyway, so I advise to avoid it. IMHO ext4 ext4nj ext4 is really fast enough
If you want to use it anyway keep backups, and keep not only the latest.
What about ext2?
Why do people use Ext4 instead now?
tanjiajun_34 said:
What about ext2?
Why do people use Ext4 instead now?
Click to expand...
Click to collapse
there's a endless thread discussing exactly this in the Development section
my summary:
ext2 has no journaling and is therefore prone to corruption. But since no one heard of one case where ext2 corrupted it's save to assume that it's not too dangerous.
ext2 also gives you higher quadrant scores but in normal use you won't feel a difference to ext4.
The difference in power usage is ridiculously slim, it's probably not even there.
I recommend ext4, but try out ext2 if you want to, if you feel an improvement keep it
Regular backups are wise regardless of your file system (that applies to everybody: )
tanjiajun_34 said:
What about ext2?
Why do people use Ext4 instead now?
Click to expand...
Click to collapse
Ext4 is newer.
ext2-ext3-ext4
linux makes new file systems and makes them better and better.
But the difference wont be that big
Hi guys, one question for the most experts: I have thought to format the internal memory in ext 4 format under ubuntu. should increase the speed of read and write data. before doing damage, it can create problems to card reading, stability or more? if this is wrong, other suggestions are welcome
thanks in advance!
Edit
I have read wich the kernel must have this property to read ext4 like file system.. for now don't are possibility to have this support, ext4 would be a good solution for increase I/O speed of internal storage
How to enable A2SD and Dc2SD together on MiniCM?
CyanogenMOD Config > Performance > A2SD Modes
I can only choose one option =/
dc2sd includes a2sd, is apps + dalvik cache to sd
Stupid Question: Which one of them is better to use? A2SD or DC2SD?
Kurinkita said:
Stupid Question: Which one of them is better to use? A2SD or DC2SD?
Click to expand...
Click to collapse
Neither! Unless you're pressed for ROM space to install new apps (all too likely with the miserable space SE alloted) - in which case A2SD is the way to go. Rather than DC2SD, increase the size of your EXT partition if pressed for space (I know no true justification in moving Dalvik cache to SD). You might even notice a lag (mild to significant) when launching larger apps stored on the card.
But it's pretty harmless to have a128MB ext partition - even if you don't need it right away. You never really can tell.