a2sd slows phone down by a bit...I have been using reiserfs for ages and i luv it ...i was wondering if i cud set it up on a reiserfs partition ..found a mkfs.reiser in /system/xbin..
If i create a reiserfs partition will a2sd (darktremors) work on it automatically..DO i need to modify the script..HAs anybody tried it ???
back it up and giv it a go?¿
The ".launcha2sd.new" and possibly other scripts look for an ext partition for mounting. Also, I'm not sure if our kernel suppors reiserfs by default.
By the way, the scripts are a thousand lines long, and I don't write shell scripts. Leave the modifications to the experts
Oh, by the way, ext4 beats ext2,3 and reiserfs when reading, but I'm not quite sure when writing. For small files, reiserfs wins, next comes ext2 and other journaling ext filesystems.
arent our apps considered "small files" ..i know they arent as small as log files..But i m damn sure its going to be faster..
I think the downside to using reiserfs is that it can be quite heavy on the CPU, not really notacibly so on a pc but with our CPU's you would notice it a lot more...
NervGaz said:
I think the downside to using reiserfs is that it can be quite heavy on the CPU, not really notacibly so on a pc but with our CPU's you would notice it a lot more...
Click to expand...
Click to collapse
Hmmm just checked it here http://www.debian-administration.org/articles/388
Well will give it a shot anyways later..........
Related
In general:
The problem with app2SD, in general, is slow SD card speeds.
Solution:
Hybrid storage pools, using the inbuilt applicaiton directory as the cache and the microSD directory as the main storage.
blogs.sun.com/ahl/entry/shadow_of_hsp explains some of the conceptual stuff
Issues:
ZFS is only available via FUSE
...
Thoughts?
.milFox said:
In general:
The problem with app2SD, in general, is slow SD card speeds.
Solution:
Hybrid storage pools, using the inbuilt applicaiton directory as the cache and the microSD directory as the main storage.
blogs.sun.com/ahl/entry/shadow_of_hsp explains some of the conceptual stuff
Issues:
ZFS is only available via FUSE
...
Thoughts?
Click to expand...
Click to collapse
While I think having snapshot, replication, 100% consistency, and dedup capability would be the coolest thing on a phone, I think the ZIL would burn up the sd quicker and the resource utilization would eat battery and memory for the transactional caches to make it practical
.milFox said:
In general:
The problem with app2SD, in general, is slow SD card speeds.
Solution:
Hybrid storage pools, using the inbuilt applicaiton directory as the cache and the microSD directory as the main storage.
blogs.sun.com/ahl/entry/shadow_of_hsp explains some of the conceptual stuff
Issues:
ZFS is only available via FUSE
...
Thoughts?
Click to expand...
Click to collapse
My only thought is: "why?". I have every app I want installed and still have 102MB available. Given just how much more memory this has than the G1's of yore, I don't really see much of a reason for AppstoSD, especially since Google is releasing their own implementation *soon*.
I was already down to 29 Meg on my internal memory.
I'll be happy when Google implements a2sd. I can't see it being any different than what a2sd us doing though.
Just make sure you have a class 6 card.
Down to fairly minimal memory as well, here.
as to 'why' over conventional a2sd ... the in-built memory is faster than even a class 6 card. A hybrid zpool will allow the faster memory to cache the slower memory (normally, a hybrid zpool combines a SSD with a hard drive pool).
Ah, didn't realize people were having problems with it. Even so, Google has announced that they're working on it themselves and since it will be an actual part of the Android OS, rather than something hacked on, I imagine it'll be a better implementation that whatever we can do. I'll be waiting for that up and coming android release.
People who are running out of memory have way too many apps installed.
Anyway, I think you will find it very difficult to use the MTD block for this purpose.
miketaylor00 said:
People who are running out of memory have way too many apps installed.
Click to expand...
Click to collapse
I disagree, I only have 50 apps in total but have used 107Mb of my 196Mb used.
I lost 33Mb just flashing a theme.
Does anyone know if TA utility will work on the Nexus to move all the Caches?
Which memory are we talking about, primary or storage memory? If memory serves me correctly, the current os can only 256MB of primary memory but that will be increased to the full 512 in a later OTA update. I thought I saw some thread flying around here about that.
Amdathlonuk said:
I disagree, I only have 50 apps in total but have used 107Mb of my 196Mb used.
I lost 33Mb just flashing a theme.
Does anyone know if TA utility will work on the Nexus to move all the Caches?
Click to expand...
Click to collapse
You almost proved his point. 33MB is a ****ty size for a theme - get a better Themerto follow. Hell, most themes for Windows aren't that big.
-bZj
miketaylor00 said:
People who are running out of memory have way too many apps installed.
Anyway, I think you will find it very difficult to use the MTD block for this purpose.
Click to expand...
Click to collapse
How on earth can you possibly make this judgment? Have you ever hear of cache? What about app data? Not to tout my own app (see sig), but the reason I created it was because my myTouch, with all of its storage, would run very low the regular basis. Besides, I like to download apps, both free and paid. Why should I be limited? Personally, I never even came close to filling up my 500MB ext partition on my myTouch but could easily have 50-100MB of cache in just a few days. I think having a GB of internal would suffice. It would allow me to comfortably add as many apps as I please and at the same time, not think about cache and data on the daily basis. $575 and I'm still going to have to hack a2sd on to this. I hate that. I'd much rather use internal storage.
Personally, I'm all for it. If nothing else, it would be one hell of a proof of concept and would likely be useful especially to those who like to run their devices lean and fast. There are too many nice things to say about ZFS, so I'll just say this: it's only a matter of time and what better time than now?
But I don't think it would happen, for the same reason ZFS hasn't been ported to linux, incompatible licenses.
http://zfs-fuse.net/
Can we get the ball rolling on this?
dont worry boys
A king nexus build is coming VERY soon with OPTIONAL a2sd and kingnexus kernel #1
SOON!
kingklick said:
dont worry boys
A king nexus build is coming VERY soon with OPTIONAL a2sd and kingnexus kernel #1
SOON!
Click to expand...
Click to collapse
So what's the Kingnexus kernel have?
cyanogen said:
So what's the Kingnexus kernel have?
Click to expand...
Click to collapse
+1 .... and how does it relate to ZFS (y on earth) and apps2sd?
~enom~
lmao you pissed of cyanogen ! xD
miketaylor00 said:
People who are running out of memory have way too many apps installed.
Anyway, I think you will find it very difficult to use the MTD block for this purpose.
Click to expand...
Click to collapse
Ever hear of games? Seriously, making a statement like this is just plain ridiculous. Homerun Battle 3D is over 30MB in and of itself. Yes, believe it or not, people actually use their nearly $600 3.7" screen for something other than reading email, of which I do plenty. So yes, I hacked apps2sd onto my Cyan ROM and it runs beautifully. I can't even tell the difference between this and internal it's so smooth. By the time Google releases a viable apps2sd the N1 will be yesterday's news. Internal storage and capacitive buttons = fail on the N1. Otherwise, kick ass device.
I never touched the kernal on alpha7 just added a s.d>placeholder in system int.d folder got apps2sd and the rest was set. Did not know kernal was part.
Hope the kernal is good.
If you know, please list the advantages of having an EXT4 file system, I have searched the forums, but came up with nothing specific. I'm more concerned with the performance gains than cosmetic ones (ie, read and write access versus directory organization) but any info you have would be interesting.
i found this
clicky
but I wondered if anyone could dumb it down for a linux noobie
EDIT:
To tie this in with the Atrix Specifically, their are 2 versions of the EternityProject Kernel, one with EXT3 and one with EXT4, and I wondered if I would get performance boosts for EXT4.
OK this is going to be very simple, so a lot of people will probably quibble with what I am going to say, it is a very complex subject.
ext2 was great and fast, along came ext3, slower but the added features far outweighed the disadvantages
When ext4 come out a lot of people avoided it as "buggy" Most if not all the bugs have been removed or fixed
Ext4 adds speed to ext3 and allows for some truly massive files
So IMHO if you want rock solid ext3, but if you want a faster system with more features and a small chance of bugs then ext4
What are some of the added features?
Sent from my MB860 using Tapatalk
well this is pretty straight forward list
http://www.thegeekstuff.com/2011/05/ext2-ext3-ext4/
from that link here is a short list of ext4
Ext4 stands for fourth extended file system.
It was introduced in 2008.
Starting from Linux Kernel 2.6.19 ext4 was available.
Supports huge individual file size and overall file system size.
Maximum individual file size can be from 16 GB to 16 TB
Overall maximum ext4 file system size is 1 EB (exabyte). 1 EB = 1024 PB (petabyte). 1 PB = 1024 TB (terabyte).
Directory can contain a maximum of 64,000 subdirectories (as opposed to 32,000 in ext3)
You can also mount an existing ext3 fs as ext4 fs (without having to upgrade it).
Several other new features are introduced in ext4: multiblock allocation, delayed allocation, journal checksum. fast fsck, etc. All you need to know is that these new features have improved the performance and reliability of the filesystem when compared to ext3.
In ext4, you also have the option of turning the journaling feature “off”.
Tao_Man said:
well this is pretty straight forward list
http://www.thegeekstuff.com/2011/05/ext2-ext3-ext4/
from that link here is a short list of ext4
Click to expand...
Click to collapse
Cool stuff! What is the maximum micro SD Card size? 32 GB! I suspect that ext3 will work well enough for now.
papakilo10 said:
Cool stuff! What is the maximum micro SD Card size? 32 GB! I suspect that ext3 will work well enough for now.
Click to expand...
Click to collapse
Yes.
That exabyte, is scaryyy....
Sent from my MB860 using XDA App
Thanks, Tao_Man, for the much easier to understand link.
Tao_Man said:
Several other new features are introduced in ext4: multiblock allocation, delayed allocation, journal checksum. fast fsck, etc. All you need to know is that these new features have improved the performance and reliability of the filesystem when compared to ext3.
In ext4, you also have the option of turning the journaling feature “off”.
Click to expand...
Click to collapse
I think ^^ means faster. Wonder if it is noticeable.
Either way, it's pretty cool that the EternityProject Kernel is the first one using this new fs on the Atrix.
Thanks again!
capnsouth said:
Thanks, Tao_Man, for the much easier to understand link.
I think ^^ means faster. Wonder if it is noticeable.
Either way, it's pretty cool that the EternityProject Kernel is the first one using this new fs on the Atrix.
Thanks again!
Click to expand...
Click to collapse
faux123 said:
Haha, the difference is EXT3 vs EXT4. I reverted back to EXT3 to be in line with cyanogenmod. I will release an EXT4 version sometimes later
Click to expand...
Click to collapse
Faux was using EXT4 for his CM7 kernel, but reverted back to EXT3 and people noticed a drop in quadrant numbers from 4000 to 3700 or so. not a HUGE difference, but enough that some people are gonna prefer the EXT4 kernel.
would it be possible to change the filesystem from ext4 to btrfs with compression and ssd optimization.
i do have the knowledge about the possible of having more cpu overhead than the improvement in transfer speed.. but when it comes to space saving, i think it does worth it. i have been using btrfs compression on opensuse for quite a while. the space saving is amazing. with compression enabled, the space usage is half the normal size.
the only concern im having about getting this to be done is the kernel. does the kernel we are using support btrfs compression at the first place(mblaster?)? i do not have the technical knowledge of how to get this done. hope someone could turn this idea to a reality.
gingerboy92 said:
...does the kernel we are using support btrfs compression at the first place(mblaster?)?
Click to expand...
Click to collapse
Nope, sorry. Btrfs is not in atm (could be changed for a test), but I don't know if compression would be supported. Also I am not convinced that compression would help a lot on the folio for two reasons: First the compression end uncompression both need cpu cycles, slowing down the system. And second the kind of files you typically have on such a device (mp3, videos etc.) are not really compressable. I doubt you would get more then a few percent more storage out of your device.
ehem.. about the cpu cycle, lzo compression could reduce the cpu usage, but i don't know by how much, probably still wouldn't worth the gain too. i don't know. but even if it does gives a worthy gain, maybe there's too much work to be done, lzo needs kernel 2.6.38 kernel to work if i'm not mistaken. compression(if possible) could be applied to something like the boot partition? maybe it could improve boot time, just a maybe.
looks like i didn't consider everything before i speak. thanks mblaster. ^.^
mblaster said:
Nope, sorry. Btrfs is not in atm (could be changed for a test), but I don't know if compression would be supported. Also I am not convinced that compression would help a lot on the folio for two reasons: First the compression end uncompression both need cpu cycles, slowing down the system. And second the kind of files you typically have on such a device (mp3, videos etc.) are not really compressable. I doubt you would get more then a few percent more storage out of your device.
Click to expand...
Click to collapse
True, what is stored on storage ? Mp3, mp4? ~ all of them are mostly compressed, where other - mathematical/lossles compression wouldnt help - in most cases would it make worse
gingerboy92 said:
ehem.. about the cpu cycle, lzo compression could reduce the cpu usage, but i don't know by how much, probably still wouldn't worth the gain too. i don't know. but even if it does gives a worthy gain, maybe there's too much work to be done, lzo needs kernel 2.6.38 kernel to work if i'm not mistaken. compression(if possible) could be applied to something like the boot partition? maybe it could improve boot time, just a maybe.
looks like i didn't consider everything before i speak. thanks mblaster. ^.^
Click to expand...
Click to collapse
compression is already applied on kernels.
usually you compile a kernel into bzImage, the "z" just means it's compressed.
modern linux kernels allow you to choose from gzip, bzip2, lzma, xz, lzo, lz4.
this includes ramdisk.
If you need space, just use an sdcard or microusb or Mount a network share...
Gesendet von meinem folio100 mit Tapatalk
Is there a way to enlarge CM7's sdcard partition?
Since CM7 i dont use WebOS at all and dont plan to use it in the future.
Im hoping once everything is stable there will be a utility to blow out the while webos I really don't need to os's too
Sent from my Nexus S 4G using Tapatalk
http://forum.xda-developers.com/showthread.php?t=1312049
The sdcard partition is shared between the two OSes so you have access to everything from both. The WebOS boot partition is small and doesn't take up much space. And with 3.0.4 it seems to be running smoother without OC, and battery lasts longer (for me at least) than CM7.
Plus, from CyanogenMod original FAQ:
WILL YOU TELL ME HOW TO REMOVE WEBOS ENTIRELY?
Nah. We like WebOS. Furthermore, we don't recommend removing it. In future it may be needed for updates and such. Plus it doesn't take up much space, and you may find yourself wanting to give it a second look some day
I dont want to remove WebOS, i just want to have more space for CM7
Do you _really_ need the extra ~500MB?
I think WebOS is marvellous. If it wasn't for the fact that a couple of apps I want to use are only on Android, I'd stick with it, largely for the fact that the battery lasts for ages and the cards system is so nice to use.
Thats all 500MB? I've got the 16Gb version and the virtual sdcard has like 6-7Gb total space. Where did the rest go?
I'm currently running the devil kernel on my phone, using the new devil app to control settings but I really don't know a couple settings though. First what I'd zram and is it better than swap? And what's the best value to set the zram at? I have it on 150mb.
Also what's better zram or swap?
Dude look @ the op
Sent from my SGH-T959 using Tapatalk 2
No info about what it is in the op U_U
well, based on my reading...(Basically meaning take this with a grain of salt because I may not perfectly re-present the information, but this is how I've come to understand it lol )
zram basically compresses unused apps within the system RAM. This allows the system to swap less needed processes to the zram partition for faster access at a later time, instead of killing them. This does take up some of your ram though, so I imagine that the value you are setting is determining exactly what percentage of your ram that the zram partition is allotted.
Swap instead uses a small portion of the SDcard like RAM. The phone will attempt to keep as much within the ram as possible until fill, and then begin using the swap partition on the SDcard. At that point, the phone will begin moving inactive blocks of memory to the SD, freeing up RAM for active processes. If one of the pages on the SD needs to be accessed again, it will be moved back into RAM, and a different inactive page in RAM will be moved onto the SD ('swapped').
Swap files don't restrict available RAM but writing to the sdcard impacts the speed of opening apps.
Now, which is better? No idea ^^ Lol
Holly crap I'm enabling swap lol. Do I need to repartition my SD card for swap?
I wouldn't enable swap, you don't need it, zram us nifty but also not need. Your system can handle memory just fine without you. Just let it to its thing and you will be fine.
Sent from my Galaxy Nexus using Tapatalk 2
I agree completely. My former device had a hack that we came up with that would force app2sd on a 2.1 build. This was great at the time but it cause some serious lag. We then enabled the swap to help with the memory issues. It worked for awhile but then all these apps started to come out that were, not to sound funny, memory hogs. This device only had 128mb of user RAM, so it was a constant struggle to get it working. Gotta remember that this was pre-GB times, so Froyo was the ICS of that time.
Here is more to read from this devices section about how swap works. The thread was revived on Post #9 and my explaination is Post#16.
Moral of the story is that I agree with Eco, let the phone work for you and not you against it. There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Woodrube said:
I agree completely. My former device had a hack that we came up with that would force app2sd on a 2.1 build. This was great at the time but it cause some serious lag. We then enabled the swap to help with the memory issues. It worked for awhile but then all these apps started to come out that were, not to sound funny, memory hogs. This device only had 128mb of user RAM, so it was a constant struggle to get it working. Gotta remember that this was pre-GB times, so Froyo was the ICS of that time.
Here is more to read from this devices section about how swap works. The thread was revived on Post #9 and my explaination is Post#16.
Moral of the story is that I agree with Eco, let the phone work for you and not you against it. There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Click to expand...
Click to collapse
Exactly, Android is designed for low Memory systems. It can handle out of Memory situations on its own, and will kill unneeded apps as is necessary to free ram for running apps. Don't worry about how much "free" ram you have because it doesn't matter. You want more free ram learn to set the ram usage settings to be more aggressive at killing idle apps. It'll and up using more battery, but if free ram is what you want then that's how to do it.
Sent from my Galaxy Nexus using Tapatalk 2
Woody said:
I agree completely. My former device had a hack that we came up with that would force app2sd on a 2.1 build. This was great at the time but it cause some serious lag. We then enabled the swap to help with the memory issues. It worked for awhile but then all these apps started to come out that were, not to sound funny, memory hogs. This device only had 128mb of user RAM, so it was a constant struggle to get it working. Gotta remember that this was pre-GB times, so Froyo was the ICS of that time.
Here is more to read from this devices section about how swap works. The thread was revived on Post #9 and my explaination is Post#16.
Moral of the story is that I agree with Eco, let the phone work for you and not you against it. There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Click to expand...
Click to collapse
Good old g1 and mytouch days
No signature for you!
Woody said:
There are few memory issues with the Vibrant. Is it running 2gb of RAM? No but do you really need something like that on a phone?
Click to expand...
Click to collapse
Actually, yes. There are certain apps, like Facebook, Whatsapp, Skype and probably more, that have their background services running even if you close the app. Those services are for sending notification, but they are slowing down this device very much (Even if only the Facebook service is running). So I do feel the device does not handle memory so good. And I can't blame it, since it has a limited memory, but I do wish I had more RAM.
Don't enable zram or swap unless you have the EU bug or like your shizz lag like a mo'fo'. If your phone is playing nicely, then disable both. Allow Purging of Assets also.Set it to two processes in Dev Section.
Sent from a Beaner
Like the SIG D'fresh!
Sent from my SCH-I535 using xda premium
Dougfresh said:
... Set it to two processes in Dev Section.
Sent from a Beaner
Click to expand...
Click to collapse
By this do you mean the "Background Process Limits"?
Sent from my SGH-T959 using xda app-developers app
scottPilgrim said:
hey devil, got a question for you...
any particular reason why you removed zRAM from your kernel? i was wondering if you could elaborate a little bit on why it isn't necessary on this device.
Thanks man
Click to expand...
Click to collapse
Xenoism said:
zram basically compresses unused apps within the system RAM. This allows the system to swap less needed processes to the zram partition for faster access at a later time, instead of killing them. This does take up some of your ram though, so I imagine that the value you are setting is determining exactly what percentage of your ram that the zram partition is allotted.
Click to expand...
Click to collapse
Not really needed on our device that have 2gb of ram memory.
Have ever been in a situation where you have been out of free ram? Neither have I.
Sent from my GT-N7100 using Tapatalk 2
Our devices don't have 2gb ram memory. They have 512mb ram memory
Sent from my SGH-T959 using xda app-developers app
cannondaleV2000 said:
Our devices don't have 2gb ram memory. They have 512mb ram memory
Sent from my SGH-T959 using xda app-developers app
Click to expand...
Click to collapse
1+