yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] retskrad:
Android (this includes Galaxy Nexus and Nexus 7) sounds like a good os until you use it and it constantly lags, reboots, crashes, stutters and feels glitchy as hell. Then you feel like a dumb fu*k because you spent money on it.

And please don't try to tell me any different I've had 6 android devices since my HTC Dream and now have a nexus7 quad core tablet and it still does these things. That along with the garbage build quality that me and millions had to deal with when we received ours.

Dont go on about widgets and custom ROMs. No please, dont. Widgets are so worthless its not funny. I have yet to see someone in real life who knows what widgets are. They buy Android phones because they cant afford iPhone. Its true, Android is a poor mans iPhone. Sorry fellas, there's no reason at all why you would choose Android over iOS. I'm talking about normal people, not geeks.

If you say "my device X is buttery smooth after Jelly Bean" then you are a liar and should be ashamed.

Something easy like opening the app drawer in Jelly Bean makes me wanna throw it at the wall. Useless software.

My 2 cents.
[Nexus 7 General] BrianDigital:
Why I spend eight hundred on my galaxy nexus if I can't afford a

iPhone, please let me know thanks
[Nexus 7 General] ExploreMN:
Wow... I didn't realize an irrational rant only costs 2 cents nowadays! LOL While I did have lag with my N7, my Galaxy Nexus hasn't had issues. However, according to you, starring this makes me a liar. LOL
[Nexus 7 General] Jay Aristide:
I buy Android products because the technology and hardware are superior to that produced by Crapple, and because Google doesn't treat their customers like prisoners in a Nazi concentration camp.

You're either a troll, an idiot, or both. Regardless, you are summarily dismissed.

/moron added to ignore
[Nexus 7 General] joshtb86:
ignore the ahole...

anyway, after having this lag of death where my sequential write dropped to 0.3 mb and my random was 0.0, i cleared space (was down to 500 mb, went back up to 7 gb and it got better) but it was not back to normal.

at this point, i also installed motley kernel. that sped the UI back up to normal, but didnt change anything else (lag loading things, unable to download more than 5 kb/s)

factory reset, then titanium backup restored - everything back to nromal with normal speeds (in androbench)

still waiting for a real solution. now i cant use my tablet.

edit - when trying to update the 20 or so apps i need to update, it randomly slows down to 10 kbps, then up to 100, then up to 500, then back. no, its not my connection.
[Nexus 7 General] Bryan_:
Received my RMA emails and labels a couple hours ago from the Google Mobile Help Forum thread that we've been discussing. As mentioned up thread I'm running stock unrooted, and frequently experience significant lag of 5-20 seconds when opening apps such as Facebooks or links in Chrome from outside the browser. Other apps intermittently hang or stutter, with games often unplayable until I clear my recent apps from the multitasking view. Looking back it started after slipping under 3 GB as others have stated and remains even when pared back to 5 GB free.

Sad to see Project Butter morph to Project Molasses, and hoping my new unit won't be a repeat. Probably a good time to actually root and flash a ROM.
[Nexus 7 General] Kumnaa:
Also a lot of people don't fill their Nexus 7 so don't yet know if theirs has an issue. Google not seeming to be able to replicate it was the biggest tell of it not being global.
[Nexus 7 General] Agosh13:
If you have this problem please star this issue here: http://code.google.com/p/android/issues/detail?id=37258#makechanges

Can the MOD add this to the first post?
[Nexus 7 General] khaytsus:
Hardware is the same. OS is the same. Folks here have said they simply filled the device with music and it started lagging. All of that tells me that there's something symptomatically wrong with the Nexus 7 or the ROM and anyone who hasn't seen it simply have not seen it yet. This simple test isolates specific software or other out-of-system interactions. I don't think this is the issue, but even if it's bad media data being installed (say a corrupt mp3), it's still a ROM issue.

Said another way, I'd bet if you took 10 devices and did "XYZ" to one and it started this IO lag, then repeated with the other 9, they'd all have IO lag as well.

Google not being able to reproduce it, that I don't believe. What I do believe is they wanted to see more real-world failures. Considering, again, folks here have just filled the device with music and reproduced it.
[Nexus 7 General] Bryan_:
Google would likely fire any employee who openly admitted this publicly where the tech press could swoop in and hurt sales. We won't hear anything until they've engineered a solution.

Just had a new occurrence where I closed tabs in Chrome and hit the home button to find my all of my home screens blank for about 10 seconds. Scrolled back and forth between them until everything suddenly reappeared.
[Nexus 7 General] jonmorris:
I agree. When does Apple ever admit a problem before a fix comes? At best they might play down the problem and imply it's not that serious.
[Nexus 7 General] kieso:
The same thing happened on my Gtablet (tegra 2) and my droid x. My friend also tells me his new RAZR was fine till he filled it up. This is a common issue with nand flash or the way that Google uses it. I asked this about 10 pages ago but does anyone know how our flash works? Is it a constant sequential read from top to bottom or is there a table (like FAT32) that is referenced to find our apps?
[Nexus 7 General] khaytsus:
Okay, so I re-ran TiBu to make sure all of my backups were current, synced the 'sd' to the computer, just in case Factory Reset did more than /data, etc.. All was okay there, media stuff stayed in place etc..

But the N7 is just as ****ing laggy as before. Damnit. I installed Flipboard first thing... Disabled all of the nonsense in my Google account from syncing, let that settle, launched Flipboard, let it settle, picked my normal feeds, let them load, started flipping.. Meanwhile I'm noticing it's all going just as slow as normal to sync this stuff, and flipping.... Still lags, still wants to close the app, etc.

Awesome, so now I have to go through all of the TiBu restore and fixing of my account for nothing.
[Nexus 7 General] Bielinsk:
I did a factory reset and its as fast as new.
[Nexus 7 General] ExploreMN:
If you factory reset and your data is still there, you didn't factory reset. On the N7 a factory reset wipes out everything.
[Nexus 7 General] khaytsus:
Media, not data. Apps, settings, etc were gone of course. Factory reset isn't exactly rocket science, settings, backup and reset, reset.

Any who... After rebooting and letting things settle I think it faster than before but still feeling lag in online apps like Flipbook. Maybe Flipbook is its own problem.
[Nexus 7 General] joshtb86:
so i did a factory reset yesterday and it was like new @ 6.29 gb free with consistent fine benchmarks

booted up today, still 6.29 gb free, seq read down to 3, seq write down to .2 again. i didnt even use the tablet. reproduced on several androbench run throughs
[Nexus 7 General] khaytsus:
Even though Flipbook is just fine on my Galaxy Note, I've decided it's not a good test on the Nexus 7, as per my previous post, it's laggy even after a factory reset (7g or so free, maps, music, and whatever else was still on the internal SD) but so far most other things seem much snappier. Still feels slower than I recall it feeling when I first got it, in fact it made my Note feel slow. My Note feels faster than the Nexus 7 now, so I'm still convinced a factory reset didn't "fix" it, or possibly the fact that I have around 5g of data on the internal SD "caused" it to have some slowdown vs everything completely gone...

It'll do for now, I'm not putting any large apps or any more media on it, hopefully it'll stay as fast as it currently is until Google or someone else figures out the real fix.
[Nexus 7 General] androidkid311:
Hope that lasts. My mate tried it and didn't last for long. Soon lag appeared again. Only real solution is for a Google update. I'm sure they are aware but keeping quiet over it. So much for quad core eh lol!
[Nexus 7 General] mmaestro:
Yeah, I feel like I'm constantly having to manage mine to make it work. I've decided it's time to RMA, just as soon as I've finished Galaxy on Fire 2, and I've gotten through some personal things that I need this one up and running. But in a week, 2 at the most. RMA.
[Nexus 7 General] E_Goldstein:
Could someone take a look at my question here please i think i have big issues :(

http://xdaforums.com/showthread.php?t=1896870
[Nexus 7 General] joshtb86:
replied in your thread
[Nexus 7 General] Metallice:
Have we concluded that this issue doesn't affect all Nexus 7's (or at least enough to make RMAing worth it) to at least to some degree? The fact that the experiences are the same - the same or similar amount of free space where it starts, the same 0.51write speeds they drop to at the lowest, the same difficulty getting it back to normal write speeds even after freeing more space, factory reset fixing it conclusively (at least until you fill it up again) - suggests to me this might be a universal issue.
[Nexus 7 General] ncvikingx97:
Am I the only none with an 8 experiencing it
[Nexus 7 General] stretched:
So there is a "new" feature to turn on auto updating of apps. Don't. It seems they sit "trying" to download but dont start unless you check on the download and it runs down the battery. I went through and unchecked auto updating on everything and it seems to help.
[Nexus 7 General] JNeail:
Have added my name to the list... fingers crossed for some action!
[Nexus 7 General] slixzen:
Well, my replacement tablet comes in tomorrow. However, my current device is having weird issues. It's force closing applications, but write speeds are just the same as they used to be before loading applications, movies, and data on there. So I am at a loss as to what is causing that. Plus I know that they want the device as is, but with a third party kernel and ROM on there, it's sorta hard to say "Oh look, I have the issue but not with google's stock firmware!" So I am a little hung up on what to do. Load up the original Kernel and ROM, load up all the movies and music I put on the device originally, and load up NOVA3 (when I first experienced some lag) and see if that can replicate the issue, or not. :(
[Nexus 7 General] joshtb86:
seeing how widespread the problem is, i think you will be able to replicate haha
[Nexus 7 General] ghost-5:
My nexus became totally unusable last night just by using chrome. I threw it in temper, luckily at the couch.

It's getting a full charge now and then I'm completely wiping it, re rooting and installing a custom Rom. Hopefully it will fix it.

on a side note, I've noticed that my nexus can kill the Wi-Fi part off my router, as in no wireless devices can access the internet but my wired devices work fine.

I thought it was a problem with my router but I got a new internet provider yesterday with a new router and the problem re appeared as soon as I used my nexus.

I had a similar problem with my stock one x not connecting to my signal booster but a custom Rom fixed that...

Fingers crossed that I can find a Rom that fixes my problems

---------- Post added at 09:27 AM ---------- Previous post was at 09:22 AM ----------

This isn't a new feature, it's been in the market app for ages. You just gave me an idea though as to why my girlfriend is always complaining that her battery on her desire z is draining too fast. I turned the auto update feature on a while ago but her apps just sit there and don't update
[Nexus 7 General] desaturated:
Thia thread is started on July, and till now I still didnt get the conclussion..

Is it relly lag?

All of them or just some device?

What the cause of lag?

And the troubleshooting?
[Nexus 7 General] khaytsus:
tldr eh?
[Nexus 7 General] wynand32:
Add me to the list of people whose Nexus 7 has experienced a nosedive after getting down to some level of storage remaining. I hit about 3.5GB free the other day after installing a large game (Horn), and noticed that performance had all of a sudden gotten much worse. I didn't make the connection to the remaining storage until AFTER I came across a story about it on a blog.

I've uninstalled some other large games and I'm back to about 7GB free, and performance remains poor. I'll do a factory reset this weekend, because I simply can't tolerate the lack of responsiveness.
[Nexus 7 General] BrianDigital:
Mine too, uninstalled a Gameloft game and now back to be snappy plus that lag fix down in the development section. But if your rocking nightlies probably merged in your ROM
[Nexus 7 General] slixzen:
So, I got the replacement device that Google sent me for the issue.

Serial Number: C70KBC

I was wondering if anyone else had received an e-mail asking for their device back, and what device model/serial they got.
[Nexus 7 General] yabbandroid:
I don't have lags thankfully :) N7 runs as smooth as can get
[Nexus 7 General] joshtb86:
what lag fix?

are you talking about this

http://xdaforums.com/showthread.php?t=1875712

i dont think thats the same problem as this one
[Nexus 7 General] MXR2:
can you still do a nand back up @ normal speeds after this lag issue begins?
[Nexus 7 General] Metallice:
Storage full? Androbench confirmation?
[Nexus 7 General] Salty Wagyu:
Well of course it'd be smooth if you didn't fill up the storage space to the point of ~3GB remaining.
[Nexus 7 General] harperhendee:
Lag for me is from any app downloading

I think my lag may be from a different source, or else folks in this thread have misidentified the root cause. I can consistantly make the device super slow and laggy, occasionally timing out on apps, and then back to buttery smooth with one change. I turn wifi on/off. Whenever there is any activity causing it to download data over wifi, it gets horribly laggy.

This problem first cropped up for me about 2 weeks after I got the tablet. I was pretty upset at my performance being in the toilet. My biggest use of this tablet is to watch video podcasts from TWiT and others using Doggcatcher. When this first showed up, I noticed the slowdown when doggcatcher was downloading videos. When I played videos (or audio) with a download in the background it would stutter. When I switched apps, it would sometimes time out. On top of that, the downloads were happening really really slowly. I found that this same slowdown happened whenever anything was downloading data in the background--including chrome just browsing the web.

At this point I decided to bite the bullet and root my device and reinstall stock. I did this and all problems cleared up. I loaded up the same apps and had no problems for over 2 months. Two days ago, I noticed a slow-down during downloads. I noticed the stuttering happening. I noticed chrome freezing up. I read this thread and saw it could be a problem due to internal storage. I freed up 8 gig of space. No change in the behavior. But when I turn off wifi everything is good. When I don't have anything downloading, everything is good.

I have a theory about the source of the lag. It seems like some IO access is timing out. For instance, a write to the storage, or perhaps some issue with handshaking the network. I get the problem regardless of what network I am connected to: home wifi, tethered Nexus S, or high security work wifi. I tried to test for a problem with the storage access by taking 60s of video (with lots of moving the camera around so it can't compress well.) and then immediately swapped to Doggcatcher while the video was writing. There was no stuttering, no pause between program switches, everything runs fine. When I turned on wifi and switched to Doggcatcher, it took about 10s to bring the program up, then another 5-8s to start the video, then it gave a hitch every 2-4s during playback.

The thing that baffles me is why this problem appears and disappears. I got the issue 1 week after getting the device, but then no problem for 2 months. Now I've got it again, and it is just as bad as it ever was. There must be some system file that is getting into a bad state, but I can't think what it is.

I backed up my nexus 7 using the N7 tools this morning, and I plan on wiping and restoring tonight. I will let you know if it fixes the problem.

--Harper
[Nexus 7 General] E_Goldstein:
Well I've come to the conclusion its gameloft games for me, I've tried hi stock and custom ROM, fresh installs nothing else on my tablet soon as I put my paid nova 3 or asphalt 7 on my nexus lags like hell, o sod it they were both only 99p I'll play hem on my phone instead.
[Nexus 7 General] sark666:
That's strange that's exactly when it happened for me as well. I bought both those games when they were 99 cents and lag city and low io write benchmarks. Uninstalling them didn't help. I just assumed it was their size as it was those apps that put me below the 3 gig mark but you're saying on a fresh install you've reinstalled those games and then the lag returns. Just bizarre.

have you run androbench benchmarks to see if it fact your write speeds have dropped?
[Nexus 7 General] Cor-master:
You have a point, I grabbed nova 3 because it was 99 cents and after the data was installed, my Nexus 7 felt more like my old Samsung Captivate. After I uninstalled nova, the lag was gone
[Nexus 7 General] heatpipe:
My Nexus doesn't like wireless N and another instance of slowness

Harper,

I had the EXACT same problem as you. In my case, by forcing my two access points to only use Wireless G at 2.4Ghz, all of my troubles went away. I tested wireless N settings on 20Mhz and 40Mhz channels but there was no difference - the Nexus would grind to a halt if the WiFi was active (especially if bluetooth audio was also active). For what it's worth, I use a Linksys EA4500 and WRT610N as APs.

As for the forum topic and slowdowns, I too have a problematic Nexus 7 16GB (C60K). My sequential writes according to AndroBench were .43MB/s with 3.5GB remaining. I too saw no difference when freeing up memory. After a reset, it jumped to 10.66MB/s! I forgot just how buttery smooth the Nexus 7 really is!

I just hope that Google/Asus gets to the bottom of this soon. Since someone else said the performance degrades with time, perhaps it's simply a performance issue with the flash firmware. Here's to hoping..

- heatpipe
[Nexus 7 General] kieso:
For those of you rooted, have you tried autorun manager? It lets you close processes that run within each app even when its force closed.
[Nexus 7 General] Jay Aristide:
Also check out Gemini App Manager - It's one of the first things I install on any device :)
[Nexus 7 General] Metallice:
Hmm interesting... I reset my tablet to get rid of the io lag and haven't reinstalled any Gameloft games yet.... down to 2.5GB free with Horn and Bard's tale and my seq write is still pretty high at 8MB/s... probably just a coincidence... but usually I'd have lag by now...
[Nexus 7 General] Foka002:
Hmm when my lag started I also had nova and asphalt 7 installed...
[Nexus 7 General] xopher.hunter:
Ditto
[Nexus 7 General] Dukko:
Do these results are ok? I've never cared about I/O, but since flashing Franco's Kernel my lag disappeared. Is it a placebo or the results show an improvement?
[Nexus 7 General] E_Goldstein:
This may sound stupid, we can't defeat like a PC can we, ?? I'm sure I read on here a long time ago defragging android was a real bad idea??

It always a Gameloft game that screws my performance up,

I know we don't all have time to do resets n stuff to see what games would affect our tablets but deff asphalt 7 & Nova 3 for me, horn didn't make a difference and filling it with music till I had 3.5gig didn't affect nothing either
[Nexus 7 General] TeeJayEss:
I experienced this slowdown after chucking a load of movies on my N7 - no Nova or Asphalt installed though.

Ran through Jay's guide in http://xdaforums.com/showthread.php?t=1855100 and it's real smoooooth now, like new. A hack, it may be, and we shouldn't need to hack it like this, but I don't care - I'd rather a quick device again until the real fix emerges.
[Nexus 7 General] beakeroo:
I have never had those two games and I've had the lag so bad that the device is unusable. Twice I have had to wipe the device, this time I decided to try another ROM as I saw someone in here recommend. So far so good, BuglessBeast seems great and lives up to its name.
[Nexus 7 General] harperhendee:
Testing results and more theories...

I still haven't got around to reflashing my nexus, but I did run androbench on it. It gave a pretty weak performance at 0.35 Mb/s on sequential writes. The other benchmarks seemed about right, but the write ones sucked. I get the same benchmark regardless of the wifi state. My Nexus S does much better at its measly 2.12MB/s.

So I've got to ask... why the heck is the storage performance so darn bad? Could it be that the timing values gets corrupted and it retries until it gives up and does a slow write? That would explain why a new install fixes things. It has to be something at a very low hardware level, since it doesn't seem to correlate with any app installations I've made. I did notice that I had crossed the magic <3.5G free boundary in the storage device. I deleted files but it didn't get better. Perhaps when the system starts to run out of storage space it turns on some subroutine or garbage collection that causes the corruption? In any case, I've still got to reflash this nexus 7 to see what changes.

--Harper
[Nexus 7 General] khaytsus:
I have zero gameloft games, so don't get into a lather about it being Gameloft. Gameloft game data are large, sometimes very large, so you're just seeing them take up a lot of space.

That said, it could be related to any number of things.. Space, number of files, possibly even large files... Nobody knows, nobody has dug into it that we are aware of.
[Nexus 7 General] kieso:
Yes don't defrag! The first time my tablet began to lag after getting low on space I tried a defrag app and it totally screwed up everything. I ended up having to do a factory reset.
[Nexus 7 General] ncvikingx97:
Just an observation, but every time I begin to factory reset, it is fine. Once I log into my Google account though, it screws itself up. Any idea why? This is without apps
[Nexus 7 General] khaytsus:
You sure it is not a temporary lag due to it syncing all if the stuff it syncs by default? I suspect it would recover in a few minutes, although I always disable syncing a bunch of stuff,and I disabled various apps like currents, Google movies, Google magazines, the various non-English keyboards,etc.
[Nexus 7 General] ncvikingx97:
And how exactly did you do that? It is not temporary
[Nexus 7 General] yalouf:
My lag happened after Nova 3 installed...Maybe a clue here ???

I have re installed everything, and it's running fine for 3 weeks now, no gameloft games installed as well.

6.5gb free...
[Nexus 7 General] khaytsus:
Because if you'd installed any Gameloft games, you'd only have 3.5g free? :rolleyes:
[Nexus 7 General] ncvikingx97:
Just did a factory restore, seems better. It still lags in the app drawer though. Any clue? Do you have any tips for at this point what to do
[Nexus 7 General] Talminator:
I think the lag might partly be caused by Google Currents syncing in the background. It's a pretty intensive background process compared to something like Pulse News. Try disabling background sync in the Google Currents settings and you should hopefully notice a difference :)
[Nexus 7 General] ncvikingx97:
I did, don't see much difference but thank you. When I hold down the home button for google now, it stutters a tiny bit. Anyone else? Should I tell the list of apps I have