yashsingh1/xdaforums huggingface dataset:
[Android Apps and Games] xeks:
Flashed the SDCardSpeedFix1024KB.zip, booted fine with better write and worse read speeds. Repeated with	SDCardSpeedFix2048KB.zip with the same results. Tried SDCardSpeedFix3072KB.zip and it proceeded to break my phone by allowing boot but making everything else FC except TW launcher. Tried to revert via CWM and that proceeded to not even allow my phone to boot. Had to restore via CWM backup. I'm afraid to try again, also not knowing what size fix to use.

Stock Samsung 16GB Class 2 MicroSDHC. Thanks.
[Android Apps and Games] Danifamous:
I have class 10 32gb card.

Flashed the last .zip, and my read speed is saying 169.5MB/s! The write speed hasn't improved much tho
[Android Apps and Games] TRusselo:
yeah also read the ABOUT in the sd test app... (menu button > about)

its says "if you get above 100 mb read speed run the test again!"
[Android Apps and Games] jacobk:
htc thunderbolt, das bamf 1.3.2 with adrynlyne 1.0ghz kernel 2.0 and i got:

16.7 MB/s write speed

15.5 MB/s read speed.

thanks!!
[Android Apps and Games] Danifamous:
3 runs. 94.9mb, 169.5mb, 119.1mb.

im going to look through the settings and see the "About" section you talk about. all my runs are the same... 107.7mb just now =/
[Android Apps and Games] TRusselo:
If your phone has Internal SD AND External SD the SD TOOLS app will only test the INTERNAL SD (not internal storage,

SD

)

Consider... the

app states

(not me) in MenuButton > About...

If you get above 100MB read speed RUN THE TEST AGAIN

For Samsung SGS phones including Captivate you MUST

rename "77sdcardspeefix" to "

S

77sdcardspeedfix" in the zip before flashing or in init.d folder after flashing for settings to work!
[Android Apps and Games] Danifamous:
Number 1. The fact the thing show a picture of an external miniSD card in teh application icon is a giveaway, the fact that reading from an external SDcard is a issues is a giveaway, so many are going with the conclusion that they are for external SDcard that you plug into your phone and store your music on.

The OP even talks about class 10 SD cards, so please dont start being a douche.

It even downloads the data to the SD card, so of course the SDcard you've brought would be relevant.

Why would it download resources to the removable sdcard if it was testing the internal memory?

number 2. I've ran the test more than once. only 3 of 10 runs are under 100mb/s, being in the high 90s
[Android Apps and Games] TRusselo:
open the app.

what does it say on the first screen? what does it tell you about your SD? it tells me about my internal card... my external is alot bigger!!

so your reasoning is because the icon of the app is an "sd card"?

the OP talks about class 10 cards because

THE FIX

works for both.

THIS APP

tests only the one!!
[Android Apps and Games] Danifamous:
Are you making an assumption that it is testing your internal because your removable is bigger? Or is your removable partitioned? Or not reading the full amount? I have a DHD, which has under 1.5GB of internal, while my 32GB card is reading as 29.81GB total space (formatted with Mac, so I lose some to the partition table), and my SD tools is saying "Total Space = 29.81GB, Free Space = 8.92GB".

Don't tell me what I can see, because I'm pretty sure I can see it, and you cannot. If you would like me to upload pictures, please say so.
[Android Apps and Games] jdguggs10:
awesome, works like a charm

bumped my patriot 16g c10 up to backbreaking speeds... gallery loads so fast i can hardly get it to stutter

well done
[Android Apps and Games] Danifamous:
This is my Storage screen, my SD Tools 1st Screen (to prove a point), and 1st three runs. All other runs are around the same mark with the 4096mb Read-ahead zip on C10 32GB. Will look into this, . Many thanks anyways!

Edit:seems like Imageshack is poo. :(
[Android Apps and Games] SammyM00782:
Just had to say......this is in the market now. It's pretty lame it's .99 cents and it clearly states ROOTED phone. Just happened to notice it when I searched for SD tools on my g/f's phone and there it was, SD card Speed Booster. Not sure if anyone else has spotted that.
[Android Apps and Games] TRusselo:
well there is an obvious difference between our phones hardware and you mis-understood me. i dont want to argue

my phone has

internal storage of 2 GB

internal SD of 13 GB

external SD of 16 GB

You dont have an INTERNAL SD. so yes YOU WERE RIGHT!! the app FOR YOU does test EXTERNAL SD.

FOR ME it tests the INTERNAL SD. 13 GB i can NOT test EXTERNAL SD
[Android Apps and Games] ad1stakt0s:
I need some help i can make it work on my x10with CM7 gingerbread. I have flash it and nothing. I made the file manualy to init.d folder and still nothing. Any suggestion?
[Android Apps and Games] Danifamous:
Yes, big misunderstanding.

Must be an American/Canadian thing, as I now do recall the Evo and/or Incredible (or something similar) has an internal SDcard (UK versions do not in any phone as I currently know), which can be changed (saw a guide a few months back. my brain isn't working - lack of sleep)

I just see big red writing as an annoyance and an act of hostility (too many 12 year olds think it's cool), and I would like to apologise if I've offended you in any way with this misunderstanding. This is interesting to know anyways. I see no reason why it shouldn't help with both the internal and removable SDcards, although it will only test the internal. (something to do with which one it reads first in load). If it does not help with the external, there would be another code needing editing too within /sys/devices/ along the same path as the one in the OP

I ran this on CM7 nightly on Desire HD and encountered no issues. Try using the market app from post #301 (essentially the same-ish coding i believe - if it does not work, refund within 15mins)
[Android Apps and Games] TRusselo:
no problem i understand and once i saw the hardware difference i was totally feeling your shoes... I am a Captivate...

edited above red text...
[Android Apps and Games] Danny80y:
So, this may be a silly question but why do all the older devices improve with a larger cache and newer devices like mine (inspire 4g) are already extremely fast? There must be a factor here other than the cache......

Example

My class4 card reads at 120MB/s

Others here on this thread have faster cards and MUCH lower speeds??
[Android Apps and Games] Danifamous:
test again. sometimes it false-reads. I am having some problems with mine reading very fast, but with a class10.

http://en.wikipedia.org/wiki/Secure_Digital#Speed_Class_Rating shows some guide on usual speeds.

another factor is the build quality of the card. when class 10 16gb first came out, they was doing speeds similar to class 4/6s because they came from a company in taiwan where build quality wasn't great.

if not, I think they may be some bugs with certain types of SDcard. I have seen an improvement, but the speeds stated are unrealistic.
[Android Apps and Games] jnmilli352:
Wondering if any one has the new (hey its Lou #9)kernel because I do it has SD speed fix I just ran SD tools 4.8mb(write) 7.8mb(read)

Don't know if this is a good range or not but I am using a cheap 32G SD I got from ebay (China) 14$, that would not work before I flashed this kernel.
[Android Apps and Games] pac213:
I used the SD Card Speed Booster from Market on my Milestone. Didn't work.
[Android Apps and Games] Danny80y:
Well this is the stock 8GB Class4 card I have done lots of runs all over 110MB/S I'm pretty sure its right the photo gallery loads instantly..... always has. There is no way it would be instant at 20mb/s.....:confused:

Edit: something is up with the test on the DHD/Inspire Testing my card thru my PC runs out to 27mb/s
[Android Apps and Games] jnmilli352:
P.S. my cache says 4096 and I didnt adjust
[Android Apps and Games] yesucan:
Hi just want to ask which fix file is better 2048,3072 or 4096 i'm using sd build MCCM HD 4.5 thanks if any one here can give me the advise :)
[Android Apps and Games] Danifamous:
Yea, I've had the same. My gallery used to take ages to load, but now loads instantly. But a picture being lets say, 200kb or so, wouldn't take that long to load on a card that can be read at 6-8MB/sec.

There is a definite improvement no doubt, like downloading from dropbox, images would require a reboot or a while to create a new folder in gallery and find the new images. Now it takes 10secs max to load up all my pictures.

I guess you can see the slower speeds with slower cards (bringing me back to the HTC hero and the 8GB class 4 that came shipped) where I noticed music lagged when I was browsing gallery or screen was off and games lagged when running off Froyo A2SD.

There is an improvement here, but I would solely rely on the user's feel to it. Anyone can manipulate numbers (like quadrant), but if it feels faster to the user I guess its a step in the right direction. No point saying it can reach speeds of 200GB/S but it crashes after 20MB is read.

Best advice is to try it, and if it doesn't work, bring it to the OP's attention, as this is his project. If you want to try something new, or want your gallery to load faster, I'd highly suggest giving this a go, as it is low-risk and will profit the community no-less. Just be wary the SD tools may not work with ALL the runs, and in my case a few amounts (actually got a read @27.1MB/s - more realistic for a class 10).

Warning: On some of the very cheaper cards, they can start to fail after so much Read/Write access (brought one of the 1st 16GB Class 10 - 6months after it lost the last 3GB and started to auto-unmount if it hit the 13GB mark) so be wary this could aid to the decrease your SDcard life, but not noticeably significantly.

I believe it could already be in the Rom. Ask the Rom Developer..

Start out low, and try them all till you find the right one for you. I'd use the OPs advice and stick to the 2048 (i think thats the one he suggests?)
[Android Apps and Games] jnmilli352:
Didn't see it in Rom description but I did see it in kernel. Is that possible?
[Android Apps and Games] Danifamous:
Please post link to ROM page? Might help people instead of them having to search :P

Some Devs are sly and not actually post what code they used in their rom, being vague with "optimisation" and "sped up", so finding out which ones are incorporated is hard, but if you go through the steps on the 1st page and the settings are already there/similar, it probably has been incorporated, but it sounds like something similar is already there. Only the dev can confirm this.

If not, you can always test for yourself with a NAND backup and if no works, revert back?
[Android Apps and Games] jnmilli352:
http://www.themikmik.com/forums/viewforum.php?f=7

Check it out but I think its in the kernel.
[Android Apps and Games] jnmilli352:
HeyItsLou Custom Sense Kernel #9 Code Name "La Villa Strangiato"-http:// www.multiupload.com/1O4IHLPK1V *NEW* BFQ I/O Scheduler, BFS CPU Scheduler, SD Card Speed Fix No Multi-

Here's the kernel,my phone is running crazy fast with this combo and no glitches yet except the ones in description.
[Android Apps and Games] pfak:
Did you mean chmod 750, not 777 ..?
[Android Apps and Games] Danifamous:
Looks like its been implemented. Not 100%, but the read-ahead is known in Ubuntu/Linux, so I'm sure other people have put it in their rom.
[Android Apps and Games] MetalMonkey:
Meh

DInc running Athena 1.2.

Just spent $4+ on Root Explorer for no immediate gain… Once I go back to CM ES File Explorer would’ve done the job again.

Thx 15min return policy… Ah well, hopefully it went to a cool dev, I’m sure it did.

16GB Class 4 Kingston

Saw no difference from the default (4) up to 4096…

5-10MBps write

6MBps read

Maybe when I give CM7 a spin I'll see something different?
[Android Apps and Games] timonoj:
Hi, I have a non-rooted phone...Is there a way to adb push the script into the init.d folder without rooting the phone? Thanks!
[Android Apps and Games] Danifamous:
Comment Removed
[Android Apps and Games] jnmilli352:
How can I tell what class my SD card is, its not on the card?
[Android Apps and Games] Danifamous:
http://androidcommunity.com/forums/f41/how-to-tell-if-sdcard-is-class-6-a-18500/

Probs a class 4/6, but looks like it has to be SDHC to be classed. (not my words)

Google it if unsure ;)

Edit: http://xdaforums.com/showpost.php?p=4067308&postcount=5
[Android Apps and Games] TRusselo:
use adb to mount system

push file

adb to unmount system
[Android Apps and Games] timonoj:
So then it's basically possible to push a file to the init.d folder even when the phone is unrooted?

Thanks!

PS: I'm asking this, as I remember to modify sometime ago the settings via adb push to get the phone to default to the SD as the main media to install (also the plugins, so have to remember now always to move them back to phone).
[Android Apps and Games] Eugene1991:
Can this .zip be flashed using Xperia X10's xRecovery??
[Android Apps and Games] samy.3660:
i have amon ra 2.0.0 recovery and am unsure which one to use cwm or ra1.7 one...

any help??
[Android Apps and Games] AZ2ENVY:
I am now using a 32Gb Class 10 patriot card and still not seeing anything

past 20mbps ..... Any ideas ? This is starting to piss me off now .
[Android Apps and Games] bassM:
I'm using external sd on sgs and still makes no difference :(
[Android Apps and Games] jamesbond22:
I used ASTRO File Manager for test speed reading and writing my card, and I used Stoper on my SE W595 to time calculation.

I copy folder "wallpapers" with some images (754 files, 34,56 Mb) from folder /sdcard/images to folder /sdcard.

Also I copy some video file (227 Mb) from folder /sdcard/videos to folder /sdcard.

Here results:

128:

time of copying images: 2m 55s

time of copying video: 1m 55s

2048:

time of copying images: 2m 34s

time of copying video: 2m 6s

3072:

time of copying images: 2m 32s

time of copying video: 1m 43s

My smartfon is X8, ROM 2.2.1, card 8 GB.
[Android Apps and Games] iinga:
2 things...the Dev confirmed that on sgs like phones the app only reads internal and that high read speeds are always a bug.

This only affects the cache (called a buffer on hard drives) and doesnt affect overall read speed of the card. All as tools seems to do is test how fast you can read from cache.

Sent by Owl Post
[Android Apps and Games] iinga:
No. Init.d doesn't even work on all roms. It needs to be enabled so that init.d scripts can be run on custom roms. Pretty sure most stock roms dont have it enabled...but you could be lucky

Sent by Owl Post
[Android Apps and Games] KapteinKing:
thank u for the guide. I have been looking through the forums alot for a fix like this, so thank u very much :)
[Android Apps and Games] timonoj:
Thanks for the clarification. I have a Nexus One running stock gingerbread.
[Android Apps and Games] richua:
The SD Card Speed Booster app isn't the same as the OP here in this thread. That app lets you choose from more presets. The hack in this thread provides you with 4 standard values, 1-4 MB, unless you write your own files. They all do the same thing; it just depends on your desired level of convenience.

I started with OP's files and then bought the app so I could test some different values without having to reboot or manually enter a command into terminal.
[Android Apps and Games] Frenchdroid:
Write speed increased too ?!

Thanks for this fix.

I tried the 2048 and the 3072.

Both gave great results but the 2048 was the best.

I went from write 4 mb/s to 6.5 mb/s and read 11 mb/s to about 85 mb/s

I don't understand the write speed increase based on what I read in the thread. I tested the card 3 times before flashing or changing anything. Then I tested each new cache size 3 times, and also again after rebooting.
[Android Apps and Games] Broetchen:
Sorry Mates, again my question: Can I do this with a shipped ROM? What do I need to do (in a noob-step-by-step-way)?
[Android Apps and Games] adrianr514:
now for higher write speeds..
[Android Apps and Games] klaona:
128 w = 9.8 R = 14.7

1024 w = 10.9 R = 15.0

2048 w = 8.2 R = 14.0

3072 w = 10.5 R = 15.0

4096 w = 9.7 R = 15.0

not much difference :confused:
[Android Apps and Games] Auridran:
This. SD Tools is the only thing I've seen performance differences with. Gallery load time is the same, loading anything from the SD card - time is the same, benchmarks are the same, etc. The only time I saw any difference at all outside of SD Tools is when I went below the default 128kB my phone uses, and the performance went down.
[Android Apps and Games] ivolol:
I'm running a Desire HD, custom 2.2 ROM, with I think class 2 SanDisk 32gb microSD.

The value I write to read_ahead_kb stays during reboot I've found, so no need for a script afaik.

But SD tools crashes the phone during writing test, for any number other than 128. (tried 2048,1024,256)

Any idea how/why, how to fix?
[Android Apps and Games] klaona:
+ 1 up

I see so, no great gain in speed
[Android Apps and Games] rak007:
Anyone using this on ZTE Blade and can post their read speeds with whatever default value (please mention that too) ??
[Android Apps and Games] rizzy123:
I have a 16 gb class 4 micro sd installed.

Default value is set to 128 but if I change to 1024,2048,3078 etc it makes no difference at all.

Write speed is 7mb/s

Read speed is 10.1mb/s
[Android Apps and Games] IZwiebelchen:
I have a Kingston 16 gb class 10 installed. The default value was set to 128 but if I change to 2048 there was no difference too.

Write speed is 5mb/s:mad:

Read speed is 17.7mb/s
[Android Apps and Games] tinchitse:
Can android 2.1 use it as there has no "/system/etc/init.d" folder?
[Android Apps and Games] CitizenLee:
I have a Desire HD running LeeDrOiD 2.2.2 with a Transcend 8GB Class 6 and see a little bit of an increase in speeds over default.

128KB (default)

Write 4.0

Read 18.5

4094KB

Write 5.5

Read 18.8

3072KB

Write 4.2

Read 18.2

2048KB

Write 5.3

Read 18.8

1024KB

Write 4.5

Read 18.3
[Android Apps and Games] robbiekhan:
I'm on CM7 #35 and using the default values I checked SDTools and got:

It's an LG Class 6 8GB card btw, I imagine I won't need to do this mod.
[Android Apps and Games] xgeneralex:
Why when I try to install the zip file cmw says me "installation aborted"?

and the values remains the same default...

(Status 0)

Installation aborted

How do I do? I've tried to download the 2048.zip file many times...

thank you in advance.
[Android Apps and Games] robbiekhan:
ok, I take that back, I think I did need to do it :p

3072:
[Android Apps and Games] ULJ:
What does one do if there are no init.d folder in /system/etc ?

LG Optimus 2X Android 2.2.2.
[Android Apps and Games] markdj57:
Can someone post the file required for samsung galaxy s users? I tried itand hasn't changed results so think I need a file to put into relevant folder...

I dont know adb..

Thanx

Markdj
[Android Apps and Games] klaona:
've tried it on 2.3.3, there are no differences

w = 9.8 r = 14.7
[Android Apps and Games] schack:
Android Revolution 3.3

Hi

Any tips on how to make this work with Android Revolution 3.3 for DHD ?

Best regards

Henrik Schack
[Android Apps and Games] Therev86:
This rocks thanks!
[Android Apps and Games] pathologo:
A simple link in the first post to rafpigna's posting isn't sufficient.

The following very important note should also be in the the first post:

This is VERY true! Keep that in mind!
[Android Apps and Games] urine_luck:
i tried all the files and all gave very similar results.

original speeds were w7 r14. after patch thr speeds averaged at w12.5 r 15.5.

was surprised to see better write speeds than other people, but much worse read speeds.

im on darky's 9.5 with dark core kernel. btw
[Android Apps and Games] Danifamous:
the .zip files should work with CWM. But I don't know if Mike&co have installed this already -> big possibility.
[Android Apps and Games] markjnj:
using sd tools to gauge any gains, I haven't seen any, running multiple tests in each kb size. If anything I noticed a few of the tests in each showed a very slight loss in speed for both read/write, but when using the higher read aheads the gallery does produce the thumbnails quicker even though sd tools doesn't show any gains. Don't know if sd tools is flawed or what. oh well.
[Android Apps and Games] hyperkamote:
Here's the .apk's i found for tweaking the speed of your SD Card and SD Tools to test the tweaked speed of your SD Card..

https://market.android.com/details?id=com.vaelek.sdspeedboost
[Android Apps and Games] smartanks:
Is there something wrong with the SD tools app..

with 128 kb read ahead cache

i got 125 , 123 , 142 mb/s read speeds

i am using ARHD 3.3 on desire HD , havent increased the cache as yet.. dont know if its even safe to increase it... :p
[Android Apps and Games] gorgy76:
I agree... flashing the patch gives quicker gallery load and is really noticeable that alone is worth flashing. Even though tests gives erratic results the way to observe if its working is from hands on experience and how you see files load and open from your sd card.
[Android Apps and Games] razze76:
I also noticed lags in the general phone use with high values, so I went down to 2048.

A few short words of what this mod does: It doesnot supercharge your sd-card beyond it's physical capabilities. It does increase the size of the read ahead buffer which means that the data you are wanting has a bigger chance of already be in the fast cache memory and does need to be read from the (slow) sd-card (internal or external).
[Android Apps and Games] adaimespechip:
I am not seeing the init.d folder in /system/etc folder.. I created my own and set the permissions ect

I saw a HUGE jump to 54mbs at the beginning of the write test however it dropped to around 7mbs via average.

As for read, it stayed solid at around 30mbs... magic!
[Android Apps and Games] victorbpe:
No significant improvement

R:10.2MB/s, W:16.1MB/s, @Samsung Captivate i896 with Serendipity 6.3 + SuckerPunch-Voodoo #12.

It is quite close to the values before applying the script.
[Android Apps and Games] flapane:
Thanks a lot, my Sandisk 8gb went from 3,3/12 to 5,2/24,7 MBps if I use 4096kb as cache value!

Now it loads the photos in Quickpic much faster.

If I use 2048 or 3072, the values aren't much different from the default value (other than the read speed at 3072kb, 18MBps).

Does it have a particular meaning? Why 4096kb is the best value on my sd? Any downside effect noticed, such as lag, battery draining and so on?
[Android Apps and Games] lilfleck:
If I'm stock ROM right now, is there no way for me to do this? I don't want to buy that app either since this really didn't show any noticeable gain in gallery load speeds...
[Android Apps and Games] Omnichron:
Thanx!! 1024 seems to work just fine!:D
[Android Apps and Games] tinchitse:
I am using android 2.1, How can I lead it automatically make the "/sys/devices/virtual/bdi/179:0/read_ahead_kb" to be "2048".As there has no any "init.d" folder.thanks~
[Android Apps and Games] cr0wnest:
Flashed the 3072kb one on my phone and it runs awesomely!

About 4.2MB write and 67MB read. A huge improvement from 3.something MB of write and 18MB read. Running CM7 Nightly #35 on nexus one and an 8GB Class 4 sandisk.
[Android Apps and Games] thenags:
I'm trying to manually edit the file but I'm unable to. I've tried in Astro and ES. Any idea why?
[Android Apps and Games] aldee_s:
hmm, are you sure the caches are in KB size? not bytes?
[Android Apps and Games] geokilla:
Well as long as the fix works to a certain extent, I'm happy. After applying it, I can confidently say that my Captivate reads files faster on the external SD. Not too sure about internal SD though.

However it was said that the CWM fix does not stay once you reboot the phone....
[Android Apps and Games] woernsn:
HTC Dream - CyanogenMod 6.1 +2708

best results with 4096: 4,8 MB writing and 23,2 MB reading :)
[Android Apps and Games] yosriz:
Great!!

noticably improve! loading pictures in gallery faster than before for example

best result in 3072kb
[Android Apps and Games] iinga:
They're actually in kilobits afaik
[Android Apps and Games] cc546:
stock nexus one 2.3. i flashed the 3048 zip but read_ahead_kb is still 128 after restart. i have to manually edit to 3048 to see speed change. any ideas?