yashsingh1/xdaforums huggingface dataset:
[Android Software/Hacking General [Developers Only]] antonior93:
Wonderful. Great! I just installed the apk and my Galaxy S became really fast. Is for things like this that i love Android. Thank you! I'll report back for battery life
[Android Software/Hacking General [Developers Only]] czonin:
Great job OP! Will flashing a kernel have any affect on the mod?
[Android Software/Hacking General [Developers Only]] jeremysherriff:
Is this the zip you used? If so, removal instructions are in the post.
[Android Software/Hacking General [Developers Only]] gabling23:
sorry but i can't read 60 pages and probably someone has already asked this question?? this app will elliminate the lag even from the launcher (i've got a nexus s and sometimes it's a little bit laggy)
[Android Software/Hacking General [Developers Only]] jeremysherriff:
It actually works. Install it and see. Try two things: Facebook (loads much much faster) and Maps (tiles load and scroll seamlessly).

Any banking applications you use will work much better too.

---------- Post added at 11:42 AM ---------- Previous post was at 11:41 AM ----------

Yes it will, it does exactly that. Awesomeness.

Edit: PS someone else with an S posted 4 posts above yours - you might not be able to read 60 pages, but one page would be a good start.
[Android Software/Hacking General [Developers Only]] fmcfad01:
Ran the app, ran cat in terminal, and did some testing on my Galaxy S3 running CM10.1 (android 4.2.). I saw absolutely no performance increases. Benchmarks were similar. The only difference was what got cat'ed in terminal. With the script running, I got entropy about 3900. Without it, I got values that ranged from about 130 to about 190. They would start at 130, then raise to about 190, then drop to 130, and repeat.

I like some of the theories in this thread as to why this helps on OP's phone/OS. I'm assuming it's just something that helps gingerbread limp along. It's not going to help Jelly Bean.

Looks like entropy between 100 and 200 is plenty to me.
[Android Software/Hacking General [Developers Only]] jeremysherriff:
Open Facebook, Maps, GMail and refresh the account, any https webpage and/or a banking app. Your entropy will drop to 0 (or close) during the opening/updating.

It's making a huge difference on my lower-spec'd devices (single or dual-core, 1GHz or similar - I have 4 to test on) and all are running ICS or JB.
[Android Software/Hacking General [Developers Only]] zeppelinrox:
Well if this don't work for the launcher, SuperCharger is a sure bet ;)
[Android Software/Hacking General [Developers Only]] nsnsmj:
I installed the apk, but everytime I hit back to exit the app the on/off switch keeps reverting to 'off' after it's been set to 'on'. It will only stay on if I hit the home button to exit the app. Doing a reboot doesn't help either.

Hope this doesn't sound like complaining (it's not), I'm just reporting an issue I'm having on my device (Nexus S).
[Android Software/Hacking General [Developers Only]] spottedkangaroo:
Yeah, just a typo.

urandom is mknod c 1 9, random is c 1 8
[Android Software/Hacking General [Developers Only]] ernexto:
Same problem, IF it's a problem.

Galaxy Note 7000 and CM 10.1 nightly...
[Android Software/Hacking General [Developers Only]] creeve4:
What is the significance of the minor number (8 vs 9) just a location? You are effectively assigning /random to occupy the same location as /urandom or is there more to it?
[Android Software/Hacking General [Developers Only]] shubu000:
i'm lazy i just got the apk, since it's updated in november i'm guessing that it's not working optimally?

like what's being reported above it seems to be off everytime you open the app
[Android Software/Hacking General [Developers Only]] andjohn:
HUGE difference on CM10 and CM9 on my wife's sensation and mine. It's night and day. My sensation now keeps up with my Note 1 with CM10. Oh, and I don't have screen-on lag :)
[Android Software/Hacking General [Developers Only]] hookguy:
Same problem.
[Android Software/Hacking General [Developers Only]] spottedkangaroo:
It's the kennel interface you want to use. /dev/ is just a collection of character files. You can make them in &HOME if you want. There's nothing special about /dev/ except that that's where the system libs look...
[Android Software/Hacking General [Developers Only]] debork:
Right, my point was that once those thresholds are raised high enough where small amounts of bit additions by hardware sensors were less significant (as opposed to the 128-192bit range), it becomes quite clear that there is no measurable "consumption" of the entropy pool no matter what the activity, only the rise then eventual flushing.

Pretty much means that this whole seeder thing doesn't help you at all on ICS and above, except possibly keeping the governor spun up by constant activity..
[Android Software/Hacking General [Developers Only]] Formhault:
I tried the "watch -n 1 cat /proc/sys/kernel/random/entropy_avail" command in Android Terminal Emulator and the return value was steady 3776 (refreshed every second). So the seed does work. Although the difference is I'm feeling is minimal, overall.

For what it's worth :

ROM : MIUI official

Kernel : HydraCoreNirvana n3.JBT (STD)

--------------

Can anybody say... Did you notice any change in overall battery drain because of this?

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] nogo8888:
Will give it a try.

Thanks
[Android Software/Hacking General [Developers Only]] jetsilver2002:
You have to reboot. It's a known bug that the switch reverts to off, but the app is still running.

From Ryuinferno post: How to check whether it is working or not?:

In terminal emulator, type Code:

watch -n 1 cat /proc/sys/kernel/random/entropy_avail

You should get values around 3000++ to 4000++...
[Android Software/Hacking General [Developers Only]] sdwise:
I like what it's done, but it's way too hard on my battery. Sad, but i must uninstall.

Sent from my DROID RAZR Maxx with Jelly Bean
[Android Software/Hacking General [Developers Only]] baberswallet:
This is all placebo, thread is making me laugh
[Android Software/Hacking General [Developers Only]] Vetala:
Thanks and question

Thank you so much for your work.

I have some question. I've seen both the apk in XDA and the app on the play store are at the first version. Have you stopped developing?

The second and more importan question is: What is the maximum residence time of the entropy data in the dev/urandom folder guaranteed by your application? Because I'm a little afraid about the security issues you outlined in yours caveats.

Thank you again!
[Android Software/Hacking General [Developers Only]] AzNTypeR:
Using the app and I love it, one issue is that it uses a bit of data! Will wiping the data for the app affect anything?
[Android Software/Hacking General [Developers Only]] zeppelinrox:
Precisely why I'm thinking that if it's just left full with the sysctl tweak, it may save battery lol

Because when it's low or below max, it's always flushing and rebuilding.

Just figure with less activity, comes less battery use.
[Android Software/Hacking General [Developers Only]] Palavilli:
Any word on this helping at all on jelly bean? I'm on a Samsung fascinate running hellybean latest mod 4.2.1, and my experience seems to show no speedup, at least nothing major.
[Android Software/Hacking General [Developers Only]] txitxi2004:
I typed that command in terminal but I am getting

sh: cat: /proc/sys/kernel/random/entropy-avail: No such file or directory

Any ideas?

EDIT

My bad. Bluetooth keyboard inserted entropy-avail instead of entropy_avail
[Android Software/Hacking General [Developers Only]] thebiftek:
Can you explain me why I'm getting better results with app installed in Quadrant benchmark? (im not even rooted...I'm really confused by it). Phone is Sony Xperia T

2 runs with seeder apk installed:

View attachment 1614697View attachment 1614698

2 runs after uninstall and reboot:

View attachment 1614699View attachment 1614700

then again 2 runs with seeder apk installed:

View attachment 1614701View attachment 1614702
[Android Software/Hacking General [Developers Only]] DesignGrits:
If you hit the home button instead it says on.

All I get is when entering that text into terminal: What am I doing wrong?

Every 1s: watch -n 1 cat /proc/sys/kernel/random/entropy_2013-01-03 23:23:23
[Android Software/Hacking General [Developers Only]] zeppelinrox:
That because there's no such file or directory called entropy-avail
[Android Software/Hacking General [Developers Only]] desalesouche:
beats audio was also placebo effect at the beginning for a lot of people...and now it is a success
[Android Software/Hacking General [Developers Only]] Kvidli:
Probably been asked and answered already... But if we uninstall apk what happens? Is there something we have to manually remove, or reflash rom or backup? Thanks guys and thanks to OP :)
[Android Software/Hacking General [Developers Only]] debork:
Definitely sounds the better route given a couple reports so far that the seeder is burning battery.
[Android Software/Hacking General [Developers Only]] fmcfad01:
Sorry man, but opening Facebook, chrome, and gmail all whilst running a benchmark still left values between 128 and 190, but tended to be more in the 150-170 range. Nowhere near zero.

Uninstalling as it adds no benefit to 4.2 in my assessment
[Android Software/Hacking General [Developers Only]] czonin:
No doubt this works but my battery is definitely taking a hit.
[Android Software/Hacking General [Developers Only]] JayyWilliams:
I'm Sure Someone Already Asked This, But I Don't Have The Patience To Look Thru 64 Pages Of Comments. Do You Have To Be Rooted For This To Work?

sent from my EVO LTE on the XDA app because Tapatalk hates me -__-
[Android Software/Hacking General [Developers Only]] txitxi2004:
Yes
[Android Software/Hacking General [Developers Only]] S0und_:
/dev/random vs /dev/urandom

http://www.onkarjoshi.com/blog/191/device-dev-random-vs-urandom/

looks like this whole issue is not really new.
[Android Software/Hacking General [Developers Only]] Sami Kabir:
I'm not a Nexus User.. I'm an i9070 (Galaxy S Advance) user.. so like will this work with my phone or is this available to only Nexus users..? :)
[Android Software/Hacking General [Developers Only]] S0und_:
Will work, i have SGS2.
[Android Software/Hacking General [Developers Only]] thebiftek:
Can you explain me this then? http://xdaforums.com/showpost.php?p=36244585&postcount=631
[Android Software/Hacking General [Developers Only]] JG:
Thank You for this!!!!
[Android Software/Hacking General [Developers Only]] bee55:
I've checked the default entropy values on both my Nexus 10 and SGS3 (International) and thy never went below 100. Does that mean the system never actually runs out of it or even the low values can be limiting?

I've tried the v6 zip on the N10 and entropy has gone up to thousands, but nor does it decrease significantly (except for when it reaches the limit) nor do I see any significant speed improvement...

I think on newer devices the lack of entropy isn't a problem based on my experience. (However based on others' it's probably not a placebo on some devices either.)
[Android Software/Hacking General [Developers Only]] :
Samsung Fascinate running Jelly Bean (AOKP Milestone 1 + Devil Kernel)

My phone has consistently had lag issues especially with Phone and Google Now. It would frequently take 8+ seconds for either to load. After installing the seeder app this lag has been reduced to an average of 3+ seconds. It doesn't fix the painfully slow I/O of the phone but it did fix those instances of lag where there seemed to be no good reason for the slow loading.

While it's not a placebo it's also not some magical program that makes lag disappear. Certainly offers an improvement for my phone.
[Android Software/Hacking General [Developers Only]] txitxi2004:
Not sure. You have to ask that member how he managed to run it without root.

The developer said you need root.

Check the play store page

https://play.google.com/store/apps/details?id=com.lcis.seeder&hl=en
[Android Software/Hacking General [Developers Only]] baberswallet:
So are negative ion wrist bands, success doesnt mean the junk works
[Android Software/Hacking General [Developers Only]] JayyWilliams:
Alright. Thank You

sent from my EVO LTE on the XDA app because Tapatalk hates me -__-
[Android Software/Hacking General [Developers Only]] Sami Kabir:
THANKS! I'm gonna try it now.. I've read about the "Battery" issues.. well how bad is it? :confused:
[Android Software/Hacking General [Developers Only]] KidCarter93:
That will be because benchmark tests are never reliable.
[Android Software/Hacking General [Developers Only]] dsMA:
[Q] what android versions will this work with

Will this work with any version of android or is there a minimum version of android that one needs to be running?
[Android Software/Hacking General [Developers Only]] inquisitorsz:
terminal emulator help

Hi,

I tried to type in the following into Terminal Emulator

watch -n 1 cat /proc/sys/kernel/random/entropy_avail

but I keep getting the following message

/system/bin/sh: watch: not found

Am I doing something wrong?

Running a rooted GS3 (GT-i9305T) with stock everything.
[Android Software/Hacking General [Developers Only]] :
How does this rngs.zip thing work? I just extract it,put it in init.d and thats it? What exactly does it contain? I cant open it with editors.
[Android Software/Hacking General [Developers Only]] derride8:
So do we need to install seeder, & then enter those command u provided?
[Android Software/Hacking General [Developers Only]] DesignGrits:
No one answered my question either.....I entered the commands and all it does is have a count meter with the same text:

"Every 1s: watch -n 1 cat /proc/sys/kernel/random/entropy_2013-01-03 23:23:23"
[Android Software/Hacking General [Developers Only]] superfluous2:
You can check in the Play Store for compatibility - 2.3 and up should all work.

Though it seems you'd see more of an improvement if you're running an older version of Android and/or older hardware.

Can't really see any difference on my One X running 4.1
[Android Software/Hacking General [Developers Only]] 1wayjonny:
I just wanted to mention my first 5 minute experience but much more time is needed.

I have a test with Android 4.X that seems to happen on my stock nexus 4. If you open the app drawer on the stock launcher and swipe as fast as possible 2-3 pages of apps to get to your widgets you will ALWAYS see a massive stutter for 1-2 seconds when swiping the app pages super quick. This happens between the last APPS page and before the first widget page. You could repeat this over and over again no matter what on any phone over clocked or not and had nothing to do with power.

After reading this I knew this would address the issue above. After installing and doing the same exercise above it stuttered the first time as warned in the OP that it still needs to load ONCE. After the stutter is completley gone no matter what. Same thing for the stock app switcher with the preview icons. Stuttered once and was smoother after.

This is a great find and I am sure has some negative aspects but I will rock this for a days.

Cheers!
[Android Software/Hacking General [Developers Only]] zeppelinrox:
And Quadrant is King in that regard.
[Android Software/Hacking General [Developers Only]] pulser_g2:
Has anyone looked at their CPU stats using CPU spy before and after?

A few comments here have suggested the phone is simply avoiding deep sleep (in particular ones mentioning no screen wake lag on the Note). That lag disappears when deep sleep isn't used.
[Android Software/Hacking General [Developers Only]] dutchct:
Just wanted to add my feedback.

Im running this rom on my sensation. The app definitely makes things faster, most noticeably with the task switching.

Only thing with the app is that, it wasn't set to "on" after a reboot.
[Android Software/Hacking General [Developers Only]] MaartenXDA:
I download and install the apk, open it and first it shows a half a second of white screen with the logo above, but after that it asks for root permissions, I allow it, and the app just turns black. The statusbar is visible, only the app is black.

I use the HTC Desire X with custom ROM.

Sent from my awesome fridge
[Android Software/Hacking General [Developers Only]] el_smurfo:
I've used the apk and noticed significant speed increases in apps opening. Enough to make it worth the continued experimentation.

Checking BBS, I unplugged my phone and hour and 15 minutes ago, and have 51 minutes deep sleep, 23 minutes awake, 10 minutes screen on, so it's definitely sleeping, but I can't say if there's a decrease in overall sleep time...As it says in the OP, the app runs every minute, so I'm guessing the mismatch between awake and screen on could be attributed to this app, but I'd need to try it with the app disabled to see if there is a real difference.
[Android Software/Hacking General [Developers Only]] xcxa23:
Using gn2 with custom kernel n Rom 4.1.2.

Since the apk aren't working so flashed seeder provided, few page back. Using terminal to confirm that it's working and deep sleep working as it should be.
[Android Software/Hacking General [Developers Only]] Formhault:
This is what the CPU usage looks like after playing Arcane Legends (with Seeder on). With Seeder off, CPU would be mostly at 800 MHz, with some spikes at 1.4 GHz from time to time.

So... more battery drain is to be expected.

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] pastordl:
Works great

Thank you
[Android Software/Hacking General [Developers Only]] Felnarion:
If we wanted to test the effectiveness..

Couldn't someone do the opposite of what this app is supposed to do? That is to say, restrict the pool further such that Android has to generate numbers more often?

If that's the case, and it makes the difference, you should see an increase in lag with the restrictive settings. And people are much less likely to "placebo" negative results.
[Android Software/Hacking General [Developers Only]] desalesouche:
after typing fisrt line in terminal, i am asked to rename source to dest, or move source(s) to directory

-f -i -n (3option), and i am told that in /dev/random :file exist... what should i do? can i just turn off terminal thinking that i am switched to urandom?...thanks
[Android Software/Hacking General [Developers Only]] DorianX:
I want to try this too... What do I need to add in an .init script?
[Android Software/Hacking General [Developers Only]] Mac of York:
Thanks much for this great fix!
[Android Software/Hacking General [Developers Only]] f_E_a_R_e_D:
where is the flashable zip?

I did a search but didn't get anything.
[Android Software/Hacking General [Developers Only]] Delgra:
Ty mate! I did a Benchmark comparison on my HTC One X with CM10 ROM and I can see a performance improvement. I know that a benchmark can be pointless but I can confirm that I see that my Phone is running faster also through a real usage testing with apps (e.g. Ingress and gMaps). For battery draining I can't make comments because I haven't tested it for many hours yet. Thanks again and keep updating ;)

Inviato dal mio HTC One X con Tapatalk 2
[Android Software/Hacking General [Developers Only]] derride8:
So instead of installing seeder, all we have to do is enter these commands?
[Android Software/Hacking General [Developers Only]] JayyWilliams:
Imma Try It On My OG Evo And See What Happens.

sent from my EVO LTE on the XDA app because Tapatalk hates me -__-
[Android Software/Hacking General [Developers Only]] GiHs:
My steps:

1-Installed apk from xda

2-Enjoyed as f**k

3-Bought on Play Store.

Thank you very very much man!

(Xperia Sola - Pure Blood Rom - Stock Kernel - Bye bye lag)
[Android Software/Hacking General [Developers Only]] chemo1191:
Wow, there really is a difference. I'm usually very skeptical of these "system optimizations" after supercharger v6 damn near killed my last phone, but this is actually pretty sweet. I'm using the seeder.apk btw, nice work!
[Android Software/Hacking General [Developers Only]] maximossj:
Thanks a lot, i'll try it and I will share results.
[Android Software/Hacking General [Developers Only]] EniGmA1987:
My phone doesnt have this problem, and I have not installed the app in this thread. Nor does it lag even the first time through.
[Android Software/Hacking General [Developers Only]] pauley:
Flashable Seeder_v6 zip here: http://xdaforums.com/showpost.php?p=36235699&postcount=462
[Android Software/Hacking General [Developers Only]] fastest963:
My CPU spy results (attached) don't look much different than what they normally are. I'm running CM10.1 nightly on GSIII and using the Seeder_V6.zip installed through CWM.
[Android Software/Hacking General [Developers Only]] UndisputedGuy:
Can you just flash the zip in CWM?
[Android Software/Hacking General [Developers Only]] cooperaaaron:
I just tried your test.Stock Nexus 4. Opened drawer. Swiped 2-3 times to get to Widgets... No lag at all..

Tried it 5 times with the same result. No stutter or lag, Seeder was NOT installed..
[Android Software/Hacking General [Developers Only]] MrMarques01:
+1
[Android Software/Hacking General [Developers Only]] zeppelinrox:
Yeah just the bold sysctl one.

You shouldn't see entropy_avail drop anymore.
[Android Software/Hacking General [Developers Only]] russell1997:
Just found out about this topic pretty interesting read, can't wait to test results

Following!
[Android Software/Hacking General [Developers Only]] mr pnut:
Is any buddy having problems with seeder I turned it on and checked the start on boot but when I go back and open seeder is off, y doesn't it stay on.
[Android Software/Hacking General [Developers Only]] kosovito:
I used the flashable zip, with CWM, no problem, reboot.

Use su seeder, no problem

Option 1, enable, opcion 2, enable at boot.

All is fine.

BUT, i have a problem, even with enable at boot opcion enabled, it does not run at phone restart.

I have root, busybox, S3 with jelly bean.

I have to activate it every boot......

Help
[Android Software/Hacking General [Developers Only]] capricornian:
Hey really nice find.. I'm using it on sgs3 will report after few hours of testing.. I just wanted to know if anyone using xperia sola have tried this? And has worked for them.. Thanks!
[Android Software/Hacking General [Developers Only]] SensationNation:
Installed the apk on my T-Mobile SII (T-989) running CM10 nightlies about 10 hours ago. Boot times are significantly longer now, and apps stutter when opening from the app drawer, though they do seem faster. Also, upon reopening the app, the button is always "off", and returns to off after exiting the app. No battery drain issues thus far.
[Android Software/Hacking General [Developers Only]] el_smurfo:
Maybe just a coincidence, but anyone else notice issues with the compass after this mod? I used the apk and it seems to work as advertised, but my compass was totally wacky. Had to uninstall the mod, reboot and recalibrate compass using gps toolbox before it worked again.
[Android Software/Hacking General [Developers Only]] rmagruder:
When I use terminal emulator and try to turn seeder off with the su / seeder combination, I get a "Pkill not found". What?

Randy
[Android Software/Hacking General [Developers Only]] kosovito:
How do you remove the mod? (flashable zip)
[Android Software/Hacking General [Developers Only]] M3wThr33:
Placebo Effect = Actual result with no change

Confirmation Bias = No result with unaffecting change

A placebo effect would mean it's actually working by changing something that doesn't matter.

Confirmation bias is BELIEVING it's working by changing something that doesn't matter.

Edit:

I used the suggestion to put the "read_wakeup_threshold=1376" command into an init.d script (01sysctl) and MY GOD, it made a big difference, even just switching launcher pages.

I use an HTC Evo 3D on ICS with some Dr0pZero ROM or whatever. I'll try it tonight on my Thrill 4G (On Gingerbread) which is perpetually laggy.