yashsingh1/xdaforums huggingface dataset:
[Android Software/Hacking General [Developers Only]] Exodai:
Holy Moly, this made my Huawei U8800 with Aurora ICS MUCH smoother and faster, thanks for making the wait for my Nexus 4 less painful! :laugh:

Just a question, would it be possible to make a widget with the on/off button? I'd like to be able to turn this off when i don't use my phone to save the battery.
[Android Software/Hacking General [Developers Only]] :
If I delete this, everything will go back to normal?
[Android Software/Hacking General [Developers Only]] Jolest:
This is a very good idea! I second this request.
[Android Software/Hacking General [Developers Only]] debork:
https://code.google.com/p/android/issues/detail?id=42265#c100

That's a bit telling for all the "smoothness" reports
[Android Software/Hacking General [Developers Only]] itznfb:
If the performance gain is from holding the CPU at a higher state, then why doesn't locking the CPU at a higher state yield the same result? If I use SetCPU and lock my GTab 10.1 at 1.4GHz and don't allow it to sleep it still runs like garbage. If I let the CPU run normally and install this seeder apk it runs better than it ever has before. Your theory doesn't make sense to me.

Edit: Also, comparing the recorded CPU state from before/after installing seeder it doesn't seem to have changed the scaling at all. And it isn't a little bit of lag while ramping up that this resolves. My Gtab locks up and takes 2-3 minutes just to open the app drawer after 20-30 minutes of use. After installing this it opens instantly every time. The graphics are still a bit laggy but the tablet is actually usable as a daily non frustrating device now.

Edit2: I'm not a developer and I'm not saying any one idea is right or wrong. I'm just saying the results doesn't seem to line up in any way to the naysayers theories.
[Android Software/Hacking General [Developers Only]] faekplastik3s:
Maybe the logic behind it is wrong, but the fact it seems to be working for so many people makes it worth investigating, especially when the claim is proving hard to completely disprove, and doesn't take into account the multiple configurations out there. Even if it's the constant prodding that's causing the result, it wouldn't make it less effective, it would just make it a nice side effect. We have had performance governors for ages and yet this seems to show better results, plus the drain cannot possibly be significant, since the task requires only the minimum CPU state, unless you're using a performance governor the loss over deep sleep shouldn't be that bad.

I can't say it works, but putting it aside just because it shouldn't work is idiotic.
[Android Software/Hacking General [Developers Only]] Gillion:
This screen shot is when the seeder app is on.

This screenshot is whenbthe seeder app is off.

As I said before it seems that this app is of little use to a GN2 running 4.1.2.

However 2 things are clear.

1. The random number pool is consistently high with the app active. I have 3900 and more consistently.

In the second screen shot you can clearly see my my pool down to three digits. It rarely goes past 178 and likes to hover between 100 and 150.

2. The cpu favours 800MHz and while it does occasionally go down to 400MHz it will quickly ramp to 800MHz and stay there all 4 cores. It very rarely goes to 200MHz.

What this says is it is runnibg the cpu at higher than base rate (according to your kernel and governor config)

On the GN2 even 200MHz is good enough to open and run Maps and Facebook quite fast with the typical startup delay.

It will be almost instant when seeder is on... but my cpu doesnt have to scale up to 800MHz because the startup and cpu scale latency is gone... as a result of the higher MHz when seeder app is on.

We need to truly understand what the entropy and random does for system performance... because overall on a device similar to mine it seems to be a case of diminished returns.
[Android Software/Hacking General [Developers Only]] arczangel:
same question here.
[Android Software/Hacking General [Developers Only]] listenlily:
Does this work on note 2? N7105 which file to download?
[Android Software/Hacking General [Developers Only]] HansiHusten:
For those who say it drains the battery:

I let it run while i was at work without touching anything, see attached screenshot.

No sign of any drainage.
[Android Software/Hacking General [Developers Only]] peterperfect:
"especially when the claim is proving hard to completely disprove"

I don't see how this is hard to disprove. Its 100% disproved. The engineer that does the proper stuff involved says: WE DONT TOUCH /dev/random. This is enough by itself.

Every single piece of effects you may see is done by constant I/O and processor polling. Nothing else. Its simple. The problem is that people want to believe that stuff works and insist to pretend they are not reading what is written.
[Android Software/Hacking General [Developers Only]] krakout:
Apologies if I missed it (though I looked), but am I the only one for whom the app's status is switched to OFF after each screen-off? There's a similar comment on Play, but I'm not sure if it's really turned off and I have to turn it on manually every time I switch my screen on, or is just a false status...

PS Arghhhh just saw the new release... :D
[Android Software/Hacking General [Developers Only]] -Sammy:
Wow ! just wow

This just saved my HTC HD2 from being replaced! For the last couple of weeks I have been drawn towards buying a new phone because I am tired

from the seemingly unnecessary lag when going to the homescreen and opening the launcher and what not.

Right now I am running Nexus HD2 JellyBean v1.2 from tytung, and I must say - the difference is tremendous !! Now the homescreen is always

right there when pressing home. And panning in the app launcher is silky smooth. I saw that google are writing this of as a placebo effect, well they can go stuff it.

Proper respect to the maker here ! Job well done!

Just one question, would there be any negative impact from using a ram manager ? (Ram Manager Pro that is)

My second HD2 Rises from the ashes yet again !!

As mr. Clarkson would have put it " POOOWEEER ! "
[Android Software/Hacking General [Developers Only]] Prack:
Best android scam of all time?
[Android Software/Hacking General [Developers Only]] danarama:
Has been mentioned a lot in this thread. Its a bug in the app. The service is still running
[Android Software/Hacking General [Developers Only]] MeetFace:
So those in the "placebo" camp:

What you're saying is that you could implement governor that effectively does the same thing the Seeder does...which is keep the CPU at least moderately ramped up?
[Android Software/Hacking General [Developers Only]] pac213:
Lol are you using your phone?
[Android Software/Hacking General [Developers Only]] peterperfect:
Do anything that keep cpu + i/o ramped up...boom!
[Android Software/Hacking General [Developers Only]] HansiHusten:
Its my tablet... sitting home alone
[Android Software/Hacking General [Developers Only]] YouArePoop:
Folder organizer crashes everyone I go to apex launcher with this active, otherwise it's great.
[Android Software/Hacking General [Developers Only]] zeppelinrox:
My guess is that you can set the governor to Performance and just pretend that rngd is running :)

I'm gonna keep the sysctl tweak in kick ass kernelizer tho as it may benefit pre-ics roms, it doesn't hurt anything and may help battery life.
[Android Software/Hacking General [Developers Only]] canis999:
It's not disproved. The random pool is being drained, so it is being used. Even if the engineer says we don't touch /dev/random, it's been proved that the pool is being used somehow.

On my Galaxy Tab 2 this fix makes a huge difference. It's not just some little improvement, it's huge. And I'm sure as hell it's not a placebo effect. So the fix works much better than overclocking or locking CPU and therefore it cannot be just due to higher CPU frequencies.

Face it: the fix works. Now for all You wise heads: figure out why it works. Just don't go on with all this I/O and processor being constantly ready, because it does not explain the whole effect this fix had on my device.

Battery drainage seems to be the same than without this fix.
[Android Software/Hacking General [Developers Only]] faekplastik3s:
That doesn't make it 100% disproved, it just means that it achieves the desired result through another mean. The desired result was less lag, people claim it's being achieved, just because the initial logic behind it is wrong, it doesn't mean that it doesn't work, just that it works through another way (or else it doesn't work at all). Also, as mentioned in the google code bug report, just because it doesn't happen in Dalvik, there's still more places where it could happen and the logic could still be sound, just happening somewhere else (for example, driver behavior and not the VM itself).

The mere fact you point out that this could all be the constant polling means it isn't disproved, it just happens to be a side effect that works at achieving the desired result.
[Android Software/Hacking General [Developers Only]] o0BlacknesS0o:
So quick question... with all the placebo/non placebo talk it gets confusing... is the SYS CTL zip posted in this thread something that works with the things that seeder does or does it do the same thing as seeder in a different way or what? Should I use both or pick just one?

Samsung Galaxy SIII powered by CleanROM
[Android Software/Hacking General [Developers Only]] GermainZ:
So what you're saying is that constant i/o polling is better than setting the minimum frequency?
[Android Software/Hacking General [Developers Only]] ktraub:
Tried it on my OG RAZR running JB and TripleCoreV1.

Saw no discernible difference.
[Android Software/Hacking General [Developers Only]] bimasakti85:
Tested on two device : Optimus Black + Galaxy Nexus, and its surely effecting performance, especially on optimus black, this seeder make it snappier...
[Android Software/Hacking General [Developers Only]] asenci:
https://code.google.com/p/android/issues/detail?id=42265#c102

You can run "watch -n1 echo > /tmp/lagfix" :p
[Android Software/Hacking General [Developers Only]] FreemanAMG:
Now, the official XDA blog has removed his blessing to this app

http://www.xda-developers.com/android/entropy-seed-generator-not-all-its-hacked-up-to-be/
[Android Software/Hacking General [Developers Only]] canis999:
The effect of this fix is better than setting the minimum frequency.
[Android Software/Hacking General [Developers Only]] peterperfect:
So lets see, in one hand I have you sure as hell that this is not just a cpu ramp. In the other hand I have at least Google head + arcee + pulser saying this is bull****. Oh snap, I think im gonna need to use my sleep hours today to figure out who I will go with.

I never said its placebo. Just that the effect you seeing its not done by what you think its doing it. This mod shots at one target and hits other. There obviously is a battery cost. Or you trying to tell me that there is a magical solutions that makes your devices lots of times faster with zero energy costs. Heh! Seems legit...

also: "So the fix works much better than overclocking or locking CPU and therefore it cannot be just due to higher CPU frequencies."

How do you tested that?

Edit: "And I'm sure as hell it's not a placebo effect." - says every user of a placebo tweak ever
[Android Software/Hacking General [Developers Only]] itznfb:
seeder has no effect on battery drain for me but it increases performance significantly. Locking the CPU at the highest frequency does absolutely nothing for performance and it drains the hell out of the battery. If all this is doing is polling the CPU then I'd say it's a hell of a lot better.
[Android Software/Hacking General [Developers Only]] GermainZ:
No, it's not.
[Android Software/Hacking General [Developers Only]] itznfb:
Scams typically don't provide very pleasing results to the user on the receiving end. This does.

---------- Post added at 12:45 PM ---------- Previous post was at 12:43 PM ----------

Yes. See my reply I just posted. For older devices this seems to have a significant positive impact that can't be achieved with any other method. The fact that so many people are denying it is a freaking joke.
[Android Software/Hacking General [Developers Only]] KERKEDAGAIN:
First off, I'm not a sensationalist. I try to pledge my allegiance to the better way. In that vein i state: My ui lag remains the same on my rooted JB Sense ROM on the EvoLTE; HOWEVER, there is no doubt in my mind that apps are loading faster and (my personal favorite effect) the recent apps dialog pops up, fully populated, instantaneously.

To echo some of the previous sentiments, I don't think it's fair to call this 'the greatest android scam' when the intended outcome is being achieved, whether it's for the reasons the OP mentions or not. As mentioned let's be a community and, instead of spending bunches of time debunking, see what is causing the positive changes and give credit to the fact that the OP has improved our devices (if deeper analysis proves that he did) in a way previously unrecognized.

/.02
[Android Software/Hacking General [Developers Only]] zeppelinrox:
The sysctl tweak will keep entropy full all the time, all by itself.

You'd get the same result but with no binary running, zero overhead and actually, less background activity than default. (since it usually bounces between 100 and 400)
[Android Software/Hacking General [Developers Only]] FreemanAMG:
I have a Galaxy Note, and noticed a little, but not quite much improvement, so, I decided to test it my self.

For this, Rebooted, opened Google maps, Waze and then used Flipboard four 5 minutes straight. First, with the app turned off, then turned it on and repeated the same. What I see is that the processor use increases, what might explain the increased performance.

For me, I think I'm going to uninstall it. Lost my 2USD or so, wich I'm glad to gave to OP, since it was a nice effort
[Android Software/Hacking General [Developers Only]] shantam:
I removed the two files from the folders but battery is still draining massively

Can anyone guide me whats causing the drain

***//'?'\\***
[Android Software/Hacking General [Developers Only]] shadesofb1ack:
I just installed this on my original Droid Incredible and it appears to be much smoother. I am running Tiny's CM10 ROM (JB: 4.1.2) which is amazing, but it does have some lag. I really noticed and increase in scrolling performance and application load time. Previously when I used to open my messaging application it would take a second for all the pictures and messages to load, now it's almost instant. This could be related to the constant i/o or ramping of the processor as mentioned previously, but I can say it does appear to deliver better performance. After a couple of days of testing, I can get back to you on the effect on battery life and time spent in different CPU states (looking to see if the CPU ramps up more often).
[Android Software/Hacking General [Developers Only]] itznfb:
You can't read very well can you? In the post you quoted I even stated that locking the CPU at max frequency provided no performance gain above the standard ondemand governor. While seeder provides a significant increase in performance unattainable by any other method.
[Android Software/Hacking General [Developers Only]] herpez:
Can anyone please tell me how to unnistall the flashable zip?

Thanks
[Android Software/Hacking General [Developers Only]] canis999:
When overclocked my device reacted much slower than with this fix. And I agree with your last sentence, but the difference is just unbelievably huge.

And I'm not saying that all those guru guys who say "it's not because of higher random pool" are wrong. I'm just saying that it obviously works. As to why it works, I have absolutely no idea, but it is hard for me to believe that it is solely because of higher CPU freqencies, because other methods I've tried don't give that effect.
[Android Software/Hacking General [Developers Only]] faekplastik3s:
Pretty poor scam when it's being given for free.
[Android Software/Hacking General [Developers Only]] zombiefly:
i hate it when people say i'm lying. Which is essentially what the "experts" are doing in this thread.

Rather than banging on about placebo and scams, can you please give us instructions on setting up the cpu to achieve what this apk does? there's a lot of talk about it but where is the evidence?

seeder improves my phone. I'm not making it up and other people in my office have seen it work on their devices too. These people have all over clocked at various stages and not seen this improvement.

So come on, show me how to do this without seeder? I'm using bricked kernel on an HTC One X CM10 rom
[Android Software/Hacking General [Developers Only]] phillipm:
Well the first thing I noticed is that whilst I was installing apps that the OS didn't lag like it usually does...
[Android Software/Hacking General [Developers Only]] TheBlackWolf:
Stop spamming this thread please.

There is much difference in charge(scam) and donate!!
[Android Software/Hacking General [Developers Only]] ChronoReverse:
You know, this sort of improvement is something that's trivially easy to demonstrate with a Youtube video.

If your task switcher comes up instantly now as opposed to with lag, this is easily shown with a video. Furthermore, this tweak can easily be turned off and on since it's just a toggle in an app.

Please put up a video in demonstration of the difference with the app On and Off. Particularly the Task Switcher.

I haven't been able to discern any notable difference on my Galaxy Note running CM10 but I suspect that this tweak is only effective for some devices running pre-JB at least.
[Android Software/Hacking General [Developers Only]] coto39:
Thanks so much! So far so good on LG GT540 (with AOSP 2.3.7). I could notice a real improvement on the speed of the phone: it load apps faster, UI is faster than ever. I will test for half day or a full day to see if theres any considerable battery impact prior to install this mod on my sister's P500 (with ICS 4.0.4)

Great mod!!!
[Android Software/Hacking General [Developers Only]] garzie2000:
Will this in anyway affect the performance of heavy 3D games?
[Android Software/Hacking General [Developers Only]] Mrozik1990:
Guys, which one version shoudl I install on my Arc S? 1.1? And what for are this rngd zip files? :P
[Android Software/Hacking General [Developers Only]] Formhault:
Okay. What the hell, guys?! What can't you understand?

CPU @ 1.4 GHz w/ Ondemand governor + Seeder = better performance than CPU @ 1.6 GHz w/ Performance governor + no Seeder. :)

How can you say this seeder thing does nothing else but scale the CPU more?!?!

Sent from my Galaxy Note
[Android Software/Hacking General [Developers Only]] danarama:
Using root explorer or similar,

Delete:

system/etc/init.d/seeder

system/xbin/rngd

Reboot
[Android Software/Hacking General [Developers Only]] Koloses:
It seems that app doesn't let my Live With Walkman to run on other frequencies than mnimal and max:

It looks like CPU theory is right. All it does is poking cpu, while it changes it's frequency to lower one. I was testing on MIUI for locked bootloader. However as the app doesn't do any harm and speeds things up I think I could continue to use it if it doesn't affect battery life that much.
[Android Software/Hacking General [Developers Only]] supersophisticated:
Read this... thanks to _n0p_ of DSC

This article tells us why this is not a good idea...

http://www.xda-developers.com/android/entropy-seed-generator-not-all-its-hacked-up-to-be/
[Android Software/Hacking General [Developers Only]] SubwayJrd:
The problem with this diagnosis is that you're running Terminal Emulator and asking it to give you updates every second, plus that neat little CPU widget laying on top of it (which is doing a graphical display).

CPU Spy (which reads Time-In-State for your processor is much less invasive, and my device (with seeder ON) deep slept from about 5-7 minutes from when the screen turned off up until I pushed the power button. The Time-In-State percentages were perfectly aligned with a test I did with Seeder turned off, and many apps were much more fluid with it on.
[Android Software/Hacking General [Developers Only]] pwoita:
With like 60% of comments on app store saying the same words "Like most I was skeptical at first, but this app really works", it seemed weird, but my android is an old, super low end budget phone (huwei ideos u8150) with lots of lag and nothing to lose.

All I can say is holy fkn ****! If this is a scam I will eat my god damn phone. The speed difference is insane on this thing. It would be a disgrace if google didn't give you a bunch of money for this.
[Android Software/Hacking General [Developers Only]] zombiefly:
exactly the question i asked... everyone is banging on about it being placebo but it clearly isn't doing what we could do before with governors and frequencies (at least in my experience). so how do we do it without the patch?
[Android Software/Hacking General [Developers Only]] M3wThr33:
And also for accuracy, you shouldn't be using the APK/Service. Instead use the script method, see the exact same improvement with no CPU hit.
[Android Software/Hacking General [Developers Only]] Z4nd4r:
Someone really needs to come out with an app that does exactly what this one does to speed performance (i.e. wake the CPU every second), but without claiming that the speedup is entropy generation based. I think the dev may have accidentally stumbled upon something useful here, and a lot of great discoveries have been made in that way.
[Android Software/Hacking General [Developers Only]] zombiefly:
yes, i think the OP is getting some bad flaming for something that is actually doing something useful. I'd be interested to test it without the entropy changes. Its quite interesting that the android dev has dismissed it, even though there is serious lag STILL in android, which sort of infers that they don't know what's causing the lag, and can't/haven't fixed it.... maybe someone should take a good look at what this is doing as it may offer a clue to fixing it properly, if this is just a brute force fix?

i think it's a bit rubbish that xda have rewound their original excitement and are hinting towards it being a placebo. for seeder to be improving so many phones on completely random hardware/software combos, there has to be some value in what it's doing, no?
[Android Software/Hacking General [Developers Only]] DeaconBoogie:
+100000
[Android Software/Hacking General [Developers Only]] Mrozik1990:
GUYS PLEASE ANSWER DOES I HAVE TO FLASH THIS ZIP FILE?? Or I can just install apk file?? There's no install guide
[Android Software/Hacking General [Developers Only]] zombiefly:
just install the apk and reboot
[Android Software/Hacking General [Developers Only]] selva847:
Just install the apk
[Android Software/Hacking General [Developers Only]] polobunny:
Thanks for the link. Definitely a hot topic in the last days!

There's an assumption that top memory randomization is pulling from /dev/random and this could cause entropy levels to drop when monitored, + monitoring taking some of it because it's creating a new process and whatnot. Either way, from a logical point of view I prefer zeppelinrox approach which adds no overhead unlike Seeder to simply "increase the pool size" and the way it fills rather than taking data from somewhere to move it somewhere else. Both seem to show similar gains, if any, but I can't honestly say I have noticed something myself. Then again, JB 4.2.1, other less updated phones or phones using customized roms (Sense UI, Motoblur) might have actual gains from it if the devs didn't code tehir things right. Definitely not impossible.
[Android Software/Hacking General [Developers Only]] sipjca:
I had this running on my GS3 and personally saw no difference. However about the battery, I left it running while my phone was sleeping for 4hrs and saw maybe 1% more drain that I previously would have. Still unconvinced if this works... trying on my Skyrocket underclocked next.