yashsingh1/xdaforums huggingface dataset:
[Android Software/Hacking General [Developers Only]] despich:
Not Making a difference with GS3 on CM10.0

On my GS3 running CM10.0 I see no improvement. Even doing side by side comparisons to a friends GS3 also with CM10 but without the seeder app no improvement shown at all. Tried about 20 "Big" apps and if anything seemed to make mine slower than his. Maybe it helps on older phones with a older rom but doesn't seem to help GS3 running CM10. Yes I verified it's doing what it's supposed to. With it running my Entropy is around 3000 and without running it's much much lower.

Not saying it doesn't work at all but it doesn't work for me.

Dan
[Android Software/Hacking General [Developers Only]] vhick:
Do you think its much better to have another thread for seeders that's run in init.d? user reported in the apk that a little bit outdated compare to your seeder (via init.d)?
[Android Software/Hacking General [Developers Only]] :
Noobs question.

Does this mean I don't need to use a task killer app from the play store like atk? Will it affect this app?

sent from my cm10-touched wonder
[Android Software/Hacking General [Developers Only]] Ryuinferno:
Please, you did not grant super user access to terminal emulator...remember to type su first and grant su access when prompted...read this properly:

http://xdaforums.com/showthread.php?p=36252773#post36252773

It is the same...just that the apk just a bit buggy...but still works...I do not want to open another thread as it is not respecful towards the OP...except if he permits it...this is not my work, I just wrote a script to sort things out...
[Android Software/Hacking General [Developers Only]] jr_718:
Maybe we shod PM a mod to give you a room in the OP so everytime you update people don't have to look for it...thanks for the updates
[Android Software/Hacking General [Developers Only]] pepoluan:
Nice find! :thumbup:

So apparently the issue runs deeper than merely 'a process blocks while reading /dev/random'

It appears that even though apps -- and dalvik -- read only urandom, behind the scene urandom reads from the same entropy pool as random. When the pool empties, it's the kernel itself that blocks, trying to replenish the entropy pool.

Both Zeppelinrox's method and Seeder trigger the kernel to fill the pool before it empties.

-- Sent from a GT-I8150 running ICS perfectly well. F'U, Sams#!t --
[Android Software/Hacking General [Developers Only]] Sirence:
Lol? Still stuck in the 1950's?

Gesendet von meinem LT26i
[Android Software/Hacking General [Developers Only]] PetritH:
I inatalled the app turned it on but when i go to the app it always shows NO, anyone experienced this?
[Android Software/Hacking General [Developers Only]] Ryuinferno:
Wow...that might be a good idea but I do not know if it is possible (most probably not...:p)...but if you can really help me, it would be most appreciated...
[Android Software/Hacking General [Developers Only]] HansiHusten:
Known bug, please read some pages before....
[Android Software/Hacking General [Developers Only]] CBConsultation:
Here's an example off power saving:
[Android Software/Hacking General [Developers Only]] fldash:
Question to anyone who may know... I created a file called 99entropy and put it into /system/etc/init.d/ folder. My kernel supports init.d by way of busybox run-parts.

I chmod it to 755 and set the owner and group to exactly the same as the other files in that folder.

I can manually run it fine. But it keeps getting removed. What is removing it? I have no idea. That folder isn't part of the boot.img is it?
[Android Software/Hacking General [Developers Only]] bgladfelter:
Thanks, bought it. Keep up the good work!
[Android Software/Hacking General [Developers Only]] Ryuinferno:
Removed? What do you mean by removed? Is it the script or? Mind sharing what you wrote?
[Android Software/Hacking General [Developers Only]] arczangel:
Thanks Dev! Now my titan run fast as hell!
[Android Software/Hacking General [Developers Only]] jr_718:
Its possible just PM a mod almost anything is possible... will Pm a mod soon as I park my car.. couldn't help but read almost every post ppl comment..just couldn't help it:D
[Android Software/Hacking General [Developers Only]] chongox:
Bought the apk from store for supporting the devs

I installed on my samsung tab 8.9 and i dont see any difference yet

People with note 2 are not bursting with joy either

Ill try latter on some legacy androids i have around

However the idea that random numbers would sort the lag in android is worth the money for me

I WANT TO BELIEVE :cyclops:
[Android Software/Hacking General [Developers Only]] sam77744:
its a on to flesh on unroot Samsung s3
[Android Software/Hacking General [Developers Only]] Ryuinferno:
??????????? :confused:
[Android Software/Hacking General [Developers Only]] burt_ie:
Just downloaded and installed on my ASUS tf300t, I'll give it a try and see if I notice any speed improvement :)
[Android Software/Hacking General [Developers Only]] fldash:
Removed as in the 99entropy file is gone. Here is what I wrote:

#!/system/bin/sh

#

busybox sysctl -e -w kernel.random.read_wakeup_threshold=1024

busybox sysctl -e -w kernel.random.write_wakeup_threshold=2048
[Android Software/Hacking General [Developers Only]] debork:
What would be really useful particularly on ICS+ is to log exactly how the shared entropy pool is consumed during regular use. If only symlinking doesn't help because the pool is depleted from urandom, then it's simply a matter of what rate the pool needs to be replenished, or what 'safe' threshold to build up to.

As I've noticed by playing with only threshold settings, there is very clearly a point at which the pool seems to flush (as opposed to actually be depleted by use). Since seeder doesn't modify the thresholds, I'm wondering these couple of screenshots from entropy_watch in this thread that show downward activity when using seeder aren't just flush events, as opposed to sudden consumption of ~1000 bits at a time.

If the combined use of urandom and even random (for those very few cases where it actually occurs in android) causes reduction in the scale of say... a few dozen bits/sec at most during high use, then this app and the regular flood of 3000+ bits from urandom would be more evident as a battery waste and overkill.
[Android Software/Hacking General [Developers Only]] mistermidas:
Now, I'm totally aware that quadrant isn't 100% reliable as far as real life tests go. But I have a Sprint LG Optimus G, rooted and stock since release date in Nov. And prior to installing the seeder app, and lots of other previous tweaks, my highest score was a 7303. But after installing, without a reboot or even memory clear, I got this score. View attachment 1616392

Ive run 4 tests for an average of 7712 on quadrant. My antutu score also went up almost 1k as well. I ran four tests with a previous average of 17442, and it jumped up to an average of 18209 afterwards. For some reason it won't let me post that picture though.

As far as browsing and gaming...this phone was already fast as hell...so I can't say I honestly feel any huge changes in speed, since I never had any lag anyway. But the numbers don't lie (usually). This thing is doing something, and as long as it's making my already fast phone even faster, I won't complain.
[Android Software/Hacking General [Developers Only]] paintball23456:
will this work on the Galaxy s3 CM10.1 (exynos4)
[Android Software/Hacking General [Developers Only]] MrPeter1985:
I just tried this on my VZW S3 stock TW rom w/root. It enables, but when you go back to it, it shows off.

Something wrong?
[Android Software/Hacking General [Developers Only]] paintball23456:
i don't understand how to do this, just flash the cwm zip? and install apk? what is the ".patch" file? help me plz
[Android Software/Hacking General [Developers Only]] movitum:
can't really say i'm noticing anything (galaxy s on cm10.1 nightlies). maybe opening the messaging app seems faster? idk
[Android Software/Hacking General [Developers Only]] thebobp:
From the google code thread:

Sounds like a good idea, and we'd have plenty of volunteers.
[Android Software/Hacking General [Developers Only]] Vaizen:
Incredible just installed it on my Xperia T with astock based rom and THE difference is clear as water
[Android Software/Hacking General [Developers Only]] HansiHusten:
Again... this is a know bug, two pages back the same question was asked and answered
[Android Software/Hacking General [Developers Only]] peterperfect:
Quoted from Ricardo Cerqueira (arcee),

"So to be clear... IMNSHO, the recent entropy pool fad is bull****. The only users of /dev/random are libcrypto (used for cryptographic operations like SSL connections, ssh key generation, and so on), wpa_supplicant/hostapd (to generate WEP/WPA keys while in AP mode), and the libraries that generate random partition IDs when you do an ext2/3/4 format. None of those 3 users are in the path of app execution, so feeding random from urandom does nothing except make random... well... less random

The only conceivable reason some devices may feel faster is because by constantly polling the PRNG, it keeps the device's I/O in constant use (which in turn, depending on device, will make the CPU stick to higher clock frequencies to keep up and/or ramp up the IO scheduler)."

Enjoy another performance magical trick that doesn't exist.

Also, comments from Google dalvik maintainer itself can be found here:

https://code.google.com/p/android/issues/detail?id=42265

Myth busted. Stop wasting money.
[Android Software/Hacking General [Developers Only]] MrPeter1985:
KUDOS!!! Your very helpful man, what a wasted post. You shouldn't have posted anything.

I did look back a few pages, no answer for it.

But yeah, I think I found the problem. I'll update with what I find out.
[Android Software/Hacking General [Developers Only]] Ryuinferno:
Werid...I can assure that nothing is wrong with your script...provided your EOL is in Unix format...must be something, maybe a script that is messing things up...

---------- Post added at 12:04 AM ---------- Previous post was at 12:03 AM ----------

Well, read this: http://xdaforums.com/showthread.php?p=36252773#post36252773
[Android Software/Hacking General [Developers Only]] pac213:
Sooner or later, users will moan about higher battery drain. I will believe devs who understands android/linux if they say it increases I/O usage and more CPU power.
[Android Software/Hacking General [Developers Only]] paintball23456:
how to install plz what to do with the patch
[Android Software/Hacking General [Developers Only]] MrPeter1985:
Just install the apk if your root. thats all

ADD: to answer my own question, it turns off when you hit the back button to get out of it. It stays on with home only.

But not seeing any improvement on my S3, I get 11k on Antutu without it, and 10k with it.
[Android Software/Hacking General [Developers Only]] Ryuinferno:
Plz, read teh post here: http://xdaforums.com/showthread.php?p=36252773#post36252773
[Android Software/Hacking General [Developers Only]] nowster:
What's wrong with just linking /dev/urandom to /dev/random? Their entropy pool is shared. Copying a chunk of urandom into random doesn't gain you anything really.
[Android Software/Hacking General [Developers Only]] MrPeter1985:
LOL thats not a few pages back. WTF man
[Android Software/Hacking General [Developers Only]] James.UBC:
Confirmed placebo effect in play store for 4.0+ devices

Mods pls close this thread or change description to match.

This thread has become the snake oil scam of android.
[Android Software/Hacking General [Developers Only]] olivares.leody:
Please teach me how to Install tahnks

Sent from my iPocket

Thanks for pressing the button
[Android Software/Hacking General [Developers Only]] jr_718:
Go to market type in seeder download and install as long as you have android device.
[Android Software/Hacking General [Developers Only]] Superman:
Install Seeder INstructions:

1.Download the Seeder.zip

2.Flash through CWM

3.Reboot

4.Open terminal and type "watch -n 1 cat /proc/sys/kernel/random/entropy_avail"

5.The value will keep on 2000+ or 3000+

Superman™
[Android Software/Hacking General [Developers Only]] olivares.leody:
Idk how to open terminal

Sent from my iPocket

Thanks for pressing the button
[Android Software/Hacking General [Developers Only]] Superman:
If your rom dint have just download it at Play Store

Superman™
[Android Software/Hacking General [Developers Only]] kaluoshi:
hey man! thanks a lot for this :fingers-crossed: anyway i would like to add the binary to my rom. just add it to /xbin folder? or should i need a simple script to call it as said in the OP? if yes could you tell me the script syntax to call it? thanks :D

EDIT: nevermind i solved with the zip posted :D
[Android Software/Hacking General [Developers Only]] Computoncio:
Just installed the zip.... Thanks lambgx02 for your work and to report that the mod works perfectly with my phone.

Phone: Samsung Galaxy SII - GT-I9100

Kernel: Dorimanx kernel v7.29 JB MALI

1st ROM : RR JB v3.1.2 (Online)

2nd ROM : Empty

MODEM: Modem+RIL - XXLPS

ROOT APP: SuperSu v0.99

MODS: My mods, ASUL v4.2 and JusTunBeam v6.0
[Android Software/Hacking General [Developers Only]] ineedone:
I followed the instructions above, and when i run the comment in the terminal I get this:

Every 1s: cat /proc/sys/kernel/random/entropy_avail 2012-12-15 17:32:28

I don't get any value? What do you mean with 5?
[Android Software/Hacking General [Developers Only]] Computoncio:
You don't see a number on the line just after that?

Phone: Samsung Galaxy SII - GT-I9100

Kernel: Dorimanx kernel v7.29 JB MALI

1st ROM : RR JB v3.1.2 (Online)

2nd ROM : Empty

MODEM: Modem+RIL - XXLPS

ROOT APP: SuperSu v0.99

MODS: My mods, ASUL v4.2 and JusTunBeam v6.0
[Android Software/Hacking General [Developers Only]] Ludak021:
I can't find "seeder" app (in Play store) that would have anything to do with this...I just get a bunch of farming apps and agricultural apps :P What is the full name of the app?
[Android Software/Hacking General [Developers Only]] jr_718:
View attachment 1565739

Also check the op its there..
[Android Software/Hacking General [Developers Only]] Computoncio:
If your rom uses init.d use the flashing zip above, and you will be alright.

Phone: Samsung Galaxy SII - GT-I9100

Kernel: Dorimanx kernel v7.29 JB MALI

1st ROM : RR JB v3.1.2 (Online)

2nd ROM : Empty

MODEM: Modem+RIL - XXLPS

ROOT APP: SuperSu v0.99

MODS: My mods, ASUL v4.2 and JusTunBeam v6.0
[Android Software/Hacking General [Developers Only]] Ludak021:
thanks guys, I wanted to try app first and see what it does for my phone before integrating it into rom. On my device and CM10 rom it does nothing that I can see, it maybe even introduces some lag...I can't really tell. Then again, I have never had a 5-6 second lag mentioned in the op, not even on a galaxy spica long time ago :P
[Android Software/Hacking General [Developers Only]] gogyly:
I've just installed your app and after initial lag (like the app needed to settle), everything is working fine. I'll test it more, but so far is good. Keep your good work. Many thanks for this app...
[Android Software/Hacking General [Developers Only]] ineedone:
Yep, flashed it with 4ext on my Desire Z with ViperZ ROM

View attachment 1566110
[Android Software/Hacking General [Developers Only]] simonrussell77:
Hey, this works really well on my Xperia Play, on CM9. Everything is running sweet with no lags or anything. I've just tried the app, to check, and sure enough, via the

watch -n 1 cat /proc/sys/kernel/random/entropy_avail command, it's reading correctly, auto updating every second.

I'll try the flashable zip posted here, to see how that works too. But personally, the app gives us ultimate control, in as much as you may not wanna use it always for whatever reason, and having a on/off switch is ideal.

So0o, epic kudos to the dev. This little hack/tweak is pretty cool :D
[Android Software/Hacking General [Developers Only]] intelligencexan:
i dont see any number either.

any recommendation?
[Android Software/Hacking General [Developers Only]] noradoor:
This is really amazing,big thanks.:good:

Like some posts said,my phone truly speeds up while opening & browsing ES files explorer.

And after upgrading to JellyBean,it was a pain to open Titanium Backup since I had to wait about 5 seconds for the loading.

Now,it just needs less than 2 seconds,that's incredibly responsive.:cool:
[Android Software/Hacking General [Developers Only]] spida_singh:
Great work!

Im using this via an init.d script on my Xperia T (LT30p) ROM, just loaded it myself, using the script applied earlier. You can tell the difference, and it's not just placebo.

Any idea how to amend the poolsize? I tried manually, it gets reset at boot, even used a commend in the init d script to change it on boot, no joy.

Many thanks!
[Android Software/Hacking General [Developers Only]] olivares.leody:
I flashed this through CWM but installation aborted. I am using galaxy pocket gt-s5300

Sent from my iPocket

Thanks for pressing the button
[Android Software/Hacking General [Developers Only]] bornagainpenguin:
Didn't know about that, thanks! Sorry for cluttering the thread.
[Android Software/Hacking General [Developers Only]] Tesla:
Whats the difference using this and performance governor?

Also, if i set my cpu to 122Mhz during sleep with powersave or conservative as govenor, will that work good and save battery?
[Android Software/Hacking General [Developers Only]] DarthGeorge:
So... this does pretty much nothing.

How to remove it? The apk seems to do whatever it wants xD
[Android Software/Hacking General [Developers Only]] Formhault:
Lolwat?

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] -Mindroid-:
Incredible!!!!!!!!!!!!!

Incredible! Great work, dev! I can't believe this was overlooked by Google for so long.

This mod makes Firefox fly! I only used it for a minute and I'm beyond impressed.

---

The app is a bit buggy. The interface shows that it's off but a process is actually running in the background.

I see it as a kernel process called "data/data/com.lcis.seeder/rngd".
[Android Software/Hacking General [Developers Only]] Formhault:
This mod enables higher data throughput (unless my spelling failed), which enabling the Performance governor does not.

Sent from my Galaxy Note

---------- Post added at 06:20 PM ---------- Previous post was at 06:20 PM ----------

If used properly, it does. Unless your phone is a quad-core... in that case, I think everything doable has already been done :p

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] FreemanAMG:
Where did you saw that, I cannot find anything related on the app store page
[Android Software/Hacking General [Developers Only]] peterperfect:
Read my post few pages ago.
[Android Software/Hacking General [Developers Only]] DarthGeorge:
My phone is a quadcore S3. Do you know how to remove this?
[Android Software/Hacking General [Developers Only]] mr_malina:
Installed on GS2 running CM10 and saw a very small performance gain, about 300 in AnTuTu.
[Android Software/Hacking General [Developers Only]] Formhault:
No need to type in big shiny red font. What you said is nothing of importance. You're neither a mod nor the OP to make such... "announcements".

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] peterperfect:
Its 100% useless unless you <=gingerbread.
[Android Software/Hacking General [Developers Only]] vhick:
I think that app in Play Store is not related to this thread. Even his app is not referring to this thread. Even the OP didn't update or post anything in this thread that other users always complain about the apk (it a bit outdated).

On the other hand, Ryuinferno update and tweak it using CWM flash running in init.d. So please guys refer to this post http://xdaforums.com/showthread.php?p=36252773#post36252773 and try it. If you didn't like it, there also an uninstaller attached in the same post.

The thread is so cluttered as it didn't see this post http://xdaforums.com/showthread.php?p=36252773#post36252773
[Android Software/Hacking General [Developers Only]] Formhault:
Uninstall the app. Otherwise (for the flashable zip)... I dunno.

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] Mr.Brown94:
Hi i've just downloaded the apk and I installed it.

I've a problem when i enable it nothing happens and if I quit and reopen the app , it says again enable because it turns off automatically. :rolleyes:

Can you help me with this problem?

Phone model

Lg p760

firmware

4.0.4

kernel

3.0.21

I also add that setting menu in the app doesn't open.

Thank you
[Android Software/Hacking General [Developers Only]] Ryuinferno:
There is a way to uninstall if somone used the zip...wayyy below my post..:p
[Android Software/Hacking General [Developers Only]] PetritH:
Is there anyway to check if this app is working or not? thank you guys
[Android Software/Hacking General [Developers Only]] Formhault:
You're right. Perhals this would have a greater effect on Gingerbread.

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] FreemanAMG:
You have lots of post in this thread, I don't mean to read them all. You say "Confirmed placebo on Play Store". I'm asking you where precisely
[Android Software/Hacking General [Developers Only]] Ryuinferno:
OP is back with Seeder 1.1! :D
[Android Software/Hacking General [Developers Only]] lambgx02:
I'm sorry for going AWOL on everyone here!

December was just an insane month for me. Things are starting to quiet down.

Just a quick update -

I posted v1.1 that resolves the on/off issue some users on later roms were seeing. It's using the proper release signature, so you'll need to uninstall v1.0 before installing v1.1.

I'm still working on updates to implement a nice status bar to show your available entropy from the UI, as well as suspension of rngd when the screen is turned off.
[Android Software/Hacking General [Developers Only]] polobunny:
Is that referring to ICS/JB or even to GB?

Not to remove anything from arcee, but that's like giving half the information, treating everyone like nitwits and acting cool about it. Neither in this post or the previous one did he explain to what Androis OS version this applies.

Why can we monitor the entropy available and see the number drop even though we're not doing any of these so said actions that consume /dev/random?

I don't know. I'm happy to call snakeoil (cough cough random init.d scripts) but if we can gather statistical evidence that other things feed from it, I see no harm in making sure it stays full in a timely manner.
[Android Software/Hacking General [Developers Only]] Irseq:
So what is better flashable or 1.1?
[Android Software/Hacking General [Developers Only]] MrPeter1985:
Nice. although I found a fix for me.

on/off wasn't working. Tested it in the Terminal.

tried it uninstalled, and installed both after a reboot.

terminal only showed "207"

installed it and told it to run on boot worked.

now gives me

"219"

and

"3449"

:) Will let you know if it helps any on a Dual core S3. :good:
[Android Software/Hacking General [Developers Only]] ZanshinG1:
I would think a good faith effort to respond to the Google and Dalvik engineers comments on your work with unimpeachable evidence that your method operates per your claim would be more useful than a fancy status bar.
[Android Software/Hacking General [Developers Only]] peterperfect:
It doesn't matter whatever you seen in statistics cause:

1 - as arcee stated, /dev/random its not in anyway on apps path

2 - dalvik code doesnt use /dev/random in anyway.

Please read the comments from Google dalvik maintainer here: https://code.google.com/p/android/issues/detail?id=42265

All this is doing is poking I/O and consequently poking the clock.
[Android Software/Hacking General [Developers Only]] MrPeter1985:
Word!