yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] markop90:
I suffer this lag too...but ON MY GALAXY NEXUS :/ (build JR03C)

When I reach >3gb of free space, the phone begin to lag terribly...

Androbenchs:

Bench on the "dirty" mem (filled before with s**t, 2gigs were free, and then cleaned out)

Always dirty bench, fsync off

Factory reset device

:(

EDIT: I've also noticed, when the memory become dirty, CPU begins to be used a lot in idle, and log cat is spammed by messages from garbage collector (GC_CONCURRENT and similar)
[Nexus 7 General] raggedstone:
As far as I can tell from reading the thread, it appears that Google are aware of the issue, and may be working on an OTA fix. I don't want to spend ages trying to resolve this, and don't want to have to backup and restore all my stuff. I'll just have to wait for Google.
[Nexus 7 General] rockvoid:
i think you will have to wait veeeryyy long....
[Nexus 7 General] ecki2k:
Mine is down to 1.8GB free Space, sequential speeds around 11-13 ... after reading this thread I´m seriously worried to install yet another game :-/

JR003, no lag yet.
[Nexus 7 General] Dorkington:
The longer Google waits, the more likely people will be jumping ship to another product... I'll be very tempted by the iPad Mini if they don't fix this soon. Which is a shame, I really like my Nexus 7 outside of the atrocious speeds.
[Nexus 7 General] rockvoid:
yes i think so too...on nexus 7 still a lot of apps are more laggy than on ipad3.

flipboard for example doesn´t run as smooth as on ipad3. or even chrome is a little laggy on the nexus 7.

hopefully this will be better with android 4.2 (coming in november?) - will will see... but... hmmm maybe i also will switch to ipad mini.
[Nexus 7 General] kisrita:
The Flipboard lag has been bugging me too. It doesn't lag like that on my Galaxy Nexus or on my old Galaxy Tab 10.1, which supposedly isn't compatible but it works just fine. What makes you think the lag is related to a Nexus 7 bug? Its not Jellybean related or my Galaxy Nexus would do the same, and it has no lag on the Galaxy Nexus. It may be that the app needs an update to work well on the Nexus 7.

I do agree that there is definitely a bug that causes lag, stutter and FCs when less than 2gb of storage space is available on a 16gb Nexus 7. I experienced it first hand. The fix is a factory reset and keeping at least 2 GB free space. I don't see why anyone would continue to suffer through this lag issue with such an easy fix. I agree it shouldn't happen in the first place, and we shouldn't have to leave 2gb unused, and I hope Google will release an update to fix that soon, but in the meantime there is absolutely no reason to torture yourselves with a slow device. Just reset it people!
[Nexus 7 General] rferrett:
Well sent mine back to Asus, let's see if it is fixed. I reckon they will just send it back saying it works not having checked to see what happens when they fill it up.
[Nexus 7 General] ridearoundsolo:
I too almost want to switch tablets but I'm gonna keep my faith because I do find myself really enjoying it a lot when things are working right, but its all good in the end really because its a nexus device and we get to see the updates first, I trust that Google will fix this for us because we are very loyal users, right now I've had my eye on that new xperia tablet it is very nice and has an awesome keyboard setup but I do know that the nexus in the end will still be superior even though xperia UI is awesome
[Nexus 7 General] Metallice:
I don't understand.... did JRO03R not fix the lag for some people? My scores have improves (a little) and I no longer have any noticeable lag...
[Nexus 7 General] sark666:
I was hoping that post was true about a fix being issued on Oct 6th. I guess we'll see.
[Nexus 7 General] ChrisM001:
No, you and Jay Aristide are the only ones, who reported that JRO03R fixed their lags. For all others it doesn't fix anything. I testeted AOKP v.4 and PA 2.17. If thestorage is filled up enough, so hat only 1,5 GB is free, the lag returns.
[Nexus 7 General] Metallice:
Well that sucks. Sorry to hear that you guys are still suffering. That issue was unbelievably annoying. Fsync off and no lags for me :/

Have you tried 4.1?
[Nexus 7 General] Jay Aristide:
Fsync off here, too.. no lag

But, like I've said before, I've never had lag (two different n7's), but I've also never had a stock experience to compare to
[Nexus 7 General] Richieboy67:
Always full? Seriously? You cannot guess what I mean?

Storage.. My storage has had less then 200mb for most of the time I have owned my nexus.. It has even had less space available and still no lag..

I think replies where you insult someone's post is less helpful. Perhaps you should keep opinions like this to yourself..

I was posting this because many associated lag with a full drive..
[Nexus 7 General] daern:
Hard to say but I (and others) seem to have hit the issue during the 25p offer, when loading up the device.

FYI, Google thread mentions that Google have reproduced this issue internally. Whether full storage is the trigger or not, clearly storage performance is at the bottom of this issue.

Hoping for a fix this weekend or I'll factory reset on Sunday..it's that bad I'm afraid :-/

Daern
[Nexus 7 General] raggedstone:
That's possible, but I haven't seen any decent analysis of what the problem is, or how it can be fixed yet. There's a lot of anecdote on here from people using a wide range of disparate ROMs, reporting conflicting information.

I assume that Google will be able to firstly identify what the problem is and secondly fix it. I haven't seen anything to convince me that anyone else has even done the first yet, which seems a pre-requisite for the second.

If I have to wait too long, I guess I will factory reset.
[Nexus 7 General] sv87411:
I can't agree more...

This problem needs a more structured approach to testing and that isn't too difficult to do. The problem happens on stock devices with no rooting or custom ROMs and its easily replicated by simply filling the device with music/movies/anything really, until it has about 2Gb free. If Google can't do this then I'd be seriously surprised. That they haven't acknowledged this issue suggests their either disinterested in their products and customers or have tested it, have replicated it and know they cannot fix it via software.

Recalling 10's of thousands of not fit for purpose products that most agree Google sold at a loss would probably cost them more than ignoring the problem and negative comments from a minority of customers and the subsequent negative PR (I've unfortunately not seen much of this, which is a shame).

I've stopped recommending the Nexus 7 as a viable option for a 7" tablet for friends and colleagues and now recommend they wait for the iPad mini.
[Nexus 7 General] Jay Aristide:
Ummm, are you serious or trolling?

They have clearly acknowledged the issue, are accepting RMA's for it, and it's been proven the problem can be resolved through software, via custom kernels, ROMs, binary updates, and tweaks.

Sorry you feel that way, and really sorry to hear you're recommending Apple over Andro....actually, I hope you're just trolling
[Nexus 7 General] sark666:
I can understand his frustration and don't think he's trolling. I wasn't aware they are still rma'ing devices for this issue. And what's the point of that? To send you another device that will eventually have this issue? you also mention various software fixes can be applied but I saw posts earlier with others discounting those fixes.

And if there are these ways of addressing the issue, why would any company RMA devices and not just simply release a fix.

Rumour had it that a patch would be released today but I suspect it'll be another month with 4.2
[Nexus 7 General] ChrisM001:
IMHO the only one who is trolling here, is you. You constantly confuse people here with pretended fixes. I set up my device two times from scratch, because you argued that it is proven that the lag issue is fixed with JRO03R, Paranoid Android and the binaries. In fact the issue is not in the least fixed but returns as before every time the free storage space goes below 1,5 GB.

When you call turning off fsync a fix you can't be serious. With this tweak you can make the slowest device fast, but at cost of possible data corruption. This can never be the final solution for the problem.

Moreover the issue is far away from being clearly acknowledged by Google. Instead there is no single public reaction to it.

So I understand everyone who is disappointed of such an elementary defect of a flagship device and the missing reaction from Google and thinks about returning his device.
[Nexus 7 General] Metallice:
If it is really bothering you that much you can always try going back to 4.1. I haven't seen anybody say that going back to 4.1 didn't work so far.
[Nexus 7 General] ridearoundsolo:
Dude majority of people aren't going to buy this device knowing that they have to void their warranty to make it work right, should google should fix this plain and simple and probably will
[Nexus 7 General] ChrisM001:
If you had followed the discussion you had realized that also 4.1 has the issue.
[Nexus 7 General] ExploreMN:
You clearly don't know what trolling means then. Someone coming on to a developer forum for an Android device talking smack about said device and promoting Apple crap is closer to trolling. Furthermore, Jay is one of the most helpful people on here. He bent over backwards to help me, a complete stranger, even down to letting me call him if I got stuck. Who the hell else on here is that nice? In addition, I did what he suggested and my N7 has been amazing ever since. So if you are having problems, I don't think its anything he suggested. Finally, at least he is trying to help people with these problems...I sure as hell haven't seen you offer up anything helpful, constructive, or worth the wasted bits on the XDA database hosting these forums.
[Nexus 7 General] sv87411:
Hmmm

How amusing that you think I am trolling when your entire sig is trolling. I assume you understand what trolling is.

I can assure I am simply venting my frustration at Google not being able to fix this issue. I

own

a Nexus 7. I

own

a Galaxy S2. I dislike Apple and their walled garden probably as much as you do.

I just happen to recommend to friends and colleagues who are not tech savvy to wait for an iPad mini if they want a decent 7" device. Until Google pull their finger out and fix this incredibly annoying problem there isn't anything in the Android space that matches the N7 spec for the money.

Also, custom ROMs, Kernels etc are just fixes. Only an official release from Google will

resolve

this issue.

Please can you provide some evidence of Google publicly acknowledging this issue?
[Nexus 7 General] Metallice:
I've been following multiple threads on the issue. Thanks for the condescending attitude. Please show me. All I've seen is people getting better I/O with 4.1. Link would be great.

---------- Post added at 07:21 PM ---------- Previous post was at 07:14 PM ----------

And yes FSync off, JRO03R, custom kernels all alleviate the symptoms, but do not eliminate the root cause.

I have no more lag, but my IO scores are not where they should be. Managing for now.
[Nexus 7 General] Jay Aristide:
Thanks :)

10char
[Nexus 7 General] BrianDigital:
Cool theory bro
[Nexus 7 General] xarrek:
My N7 work fine with 700MB free. I have Trinity with fsync.

Wysyłane z mojego Nexus 7 za pomocą Tapatalk 2
[Nexus 7 General] Dukko:
Same here, even less free space (took it while calculating because android doesn't see my 6+ gigs of cached music).

Paranoid android, franco's, fsync off.
[Nexus 7 General] Dukko:
(forgot photo :/)
[Nexus 7 General] Metallice:
Lol at the people saying their device works fine with Fsync off.

Fsync off masks symptoms by letting the system finish its slow writes whenever it feels like it in the background.

Sure your tablet seems fine... but your writes are still super slow. They are just happening in the background now.
[Nexus 7 General] Spacemonkie4207:
My Nexus 7 came with JRO03S, no problems with lag on my end.
[Nexus 7 General] Jay Aristide:
I don't feel any lag on stock 4.1.1 with a full storage and stock kernel, either. I actually just returned mine to JRO03D and left it stock for awhile.. loaded it up and it ran fine. I guess I've never been susceptible to it :)

Back on PA now, with _motley's, fsync off, /data remounted, GPU oc'd to 484mhz on a -100mV undervolt... pure butter. I sure do love my n7 :)
[Nexus 7 General] ExploreMN:
And? If your system runs great and you have a nice lag free experience, who gives a ****?
[Nexus 7 General] Metallice:
I'll admit my post wasn't well said. Comes off a little dickish. That said....

It isn't running great. Background writes are sitting in cache waiting forever to be written. Reboot and you lose all that data. I'm just saying its not a fix and your tablet isn't running fine.

Sure it works. Its what I'm doing. But its pointless to post this acting like it is a fix when its just masking symptoms.

People keep posting that their device is perfect and isn't susceptible to the lag, bragging with pictures. Its happened throughout the thread. But oh BTW they have fsync off. Its frustrating.
[Nexus 7 General] Dukko:
First of all: I'm not bragging. I'm saying that on my device, with that config, I experience no lag. I do this not to brag, but to report that using this specific configuration gives you a no lag experience.

I'm trying to be helpful, you know?

Also, the phrase in bold is actually being disproven in my daily experience. I just downloaded a big file, 1gb mkv movie, and rebooted as soon as my file transfer was done, all of this after a day of using apps, listening to streaming music, etc., all activities which write on disk. The mkv file is still there and is actually playing on my device (ok, now is paused to reply to you :P).

I know that this issue is far from being solved, but Google said it's working on it and honestly I kinda trust'em. Until they fix it for good, following Jay's advice I found a temporary fix to the issue. It's a perfect solution? No, but my tablet's back to fast and furious and I'm really happy, thus I share the fix with others.
[Nexus 7 General] sark666:
Well the doubtful (doubtful because it's a weekend date) Oct 6 rolled by with no update. I wonder if google has sent any word at least to the people that submitted their tablets? And as someone else mentioned, I find it really strange that they needed tablet submissions when this is pretty easy to duplicate. Unless there are more than slight differences between models (different memory?) I don't want to wait for 4.2 to fix this.

I appreciate what others have posted in fixing this with custom roms but google should really address this or say something more on that thread.
[Nexus 7 General] Metallice:
Well how fast was your download speed? If it was under 1MB/s then it would be written as fast it was downloading even with the lag. Also I'm not sure how much can stay in the buffer before it has to be written.

Anyway, yeah for downloading you shouldn't have to worry.

Moving files around, save games, and other data operations that aren't limited by network speeds and arent massive are the things you need to worry about.

It also depends on how much of a backlog accumulates with fsync off. If you have a ton of write operations waiting then that makes it more likely for recent data writes to be lost.

And I apologize. I've just seen so many examples of people saying they're fine and I must be unlucky or crazy only to find out they have fsync off. It makes it hard for this issue to get the attention it deserves.
[Nexus 7 General] jonmorris:
Saturday always seemed an odd (unlikely?) day for any update.
[Nexus 7 General] ncvikingx97:
I am running iced jellybean, with elite kernel set to to a min of 475 and a Max of 1700, with interactive, and I still, lag a little bit. Any ideas?
[Nexus 7 General] TeamHackura:
I have tried nearly every combinationof Rom and kernel with noluck. I recent tried Jay recipe and while I really appreciatethe post this did not good either(Ialso confirmed that it has,world). I just called to rma my device. I am reallysurprised that Google would put out such at poor device at ANY price point. for God's sake the thing runs slower than my gs2 which I have running lots of concurrent processes at any given point
[Nexus 7 General] Dorkington:
No update here. Still laggy, even with 5gb free. Love the device, hate the speed. Will probably be ditching it, since Google refuses to fix it.
[Nexus 7 General] jonmorris:
Is Google refusing to fix it? That's quite an accusation.

I'd agree they're being incredibly slow to fix it and not exactly doing much to acknowledge the problem - but perhaps they've realised that you should do what Apple often does, say nothing until you've got a fix ready to go.

Most people who have bought a Nexus 7 probably don't know that there's a problem. As they've filled up the device with content, they may have noticed the lagging - but have put it down to any number of things, possibly assuming an app or game they installed has caused the problem.

And it's not as if the net is full of sites highlighting the problem. If Google had acknowledged a problem, it would be commendable - but at the same time, Engadget/Verge/Gizmodo/CNET and the others would be writing that there was a problem and all the fanboys would be fighting it out...

Let's just hope Google does roll out an update, and even if they only write 'changelog; a few bug fixes' to play down the problem, but it works, we can all be happy.
[Nexus 7 General] raggedstone:
I finally got around to wiping my N7. Most stuff seemed to restore OK, and it wasn't as painful as I thought it might be. I rooted and flashed a different ROM and Kernel just for the hell of it at the same time. It's much, much faster now, and androbench figures are around 10x faster.

I wish Google would fix it though, otherwise I can see me having to do this regularly - I'm not convinced it's a threshold thing. I think it gradually gets slower as it fills up, but is absolutely horrendous when full (and never gets better without a wipe).
[Nexus 7 General] Agosh13:
Please star this page: http://code.google.com/p/android/issues/detail?id=37258
[Nexus 7 General] Jay Aristide:
I'll happily buy your n7 for half of what you paid for it
[Nexus 7 General] TheScarecrow:
I agree, I still have virgin 7.5GB free but noticed it slowing down hence finding this thread. Apps run okay still but getting memory info takes about 5 minutes. For example clearing the cache on an app takes 4 mins to display the cache size, then another 4 mins to clear it to zero.

I can no longer play YouTube HD videos without constant pausing. This is only a problem on the nexus 7, all other devices in out household play YouTube HD without pausing, even my wife's dumb Archos tablet can do this! I could play HD video when I first got the nexus but not now.

There are other problems but I won't go on and on.

Its high time Google made a statement as to what they plan to do and referring customers to Asus is wholly unacceptable. That's like Apple sending customers to Foxconn when the antenna problems appeared on the iPhone.
[Nexus 7 General] Jay Aristide:
Except Foxconn doesn't make the entire piece of iCrap, while Asus makes the *entire* nexus, from back to glass.

It's high time? Says who? You? And you hold exactly how much stock in Google, Inc? Lemme guess, about $230 worth in the form of a quad core tablet...

Google has acknowledged this as a problem, are accepting RMA's on it, and whether or not you *want* them to, they don't have to go an inch past that. If they want to quietly handle the situation, that's their perogative. If they want to let Asus handle the RMA process - especially considering the only thing on the tablet NOT Asus is the Google logo - well, that's their perogative, too.

Some of you people's presumption and sense of entitlement is staggering.

You all need to get this thread back on track, it's becoming a whine and cry fest again.
[Nexus 7 General] jonmorris:
Have any of the big tech sites done anything on this? If they did, I suspect Google would have a patch released VERY quickly.

Given the big deal over 'Project Butter', I could imagine one of those sites having some great fun with the suggestion that the butter has very quickly melted..!
[Nexus 7 General] TheScarecrow:
Me and here is quite a long list of others.

http://code.google.com/p/android/issues/detail?id=37258

Seems more like a wind up clockwork tablet at the moment.

Anyway, if no solution is on the horizon I'll just take it back to Tesco and get my money back. Tesco recognise the importance of good customer support.

As a long time Linux and Android user, I really wanted this Tablet to succeed.
[Nexus 7 General] androidkid311:
Haha! Wind up tablet lol! Sorry I had to laugh because its kind of true. I've had 2 now and I'm done with the n7. I'm going to see how the 3G model holds up. They might have corrected the issue then...hopefully.
[Nexus 7 General] ExploreMN:
I don't remember if it was in this thread or another, but some people suggested cache cleaning can help. If so, is there a recommended app for that? I'm still lag and problem free, but maybe looking at some of the older ideas would be effective for those still having issues with the current non-Google fixes in place?
[Nexus 7 General] mmaestro:
I'm using "App Cache Cleaner" set to wipe all cache every 24 hours. Haven't seen much slowdown and what I do seems to go away periodically, I assume with the cache cleanup. I expect I'll still get the slowdown again eventually, but this is at least keeping it manageable. I have am infant at home now so I simply don't have the time to root and flash stuff to keep it manageable.
[Nexus 7 General] Metallice:
It can help because caches of poorly coded apps can sometimes become gigantic (like Chrome haha sorry Google... sometimes chrome can use up to 300Mb!). And consequently, the more space you use, like with ballooning caches, the more likely you are to trigger the IO issue and the worse the issue can become.

HOWEVER!!! I would HIGHLY recommend not using some automatic cleaner as you don't want to clean caches that seem reasonable in size. You onky want to clean caches when they become unreasonable. Caches are useful and if you delete them all without discretion the apps and system will just rebuild them - wasting battery, CPU cycles, and I/O.

(For those paying attention this is practically the same reason why task killers are a bad idea, but instead of RAM we are talking about EMMC.)
[Nexus 7 General] Undeadllama:
So at least there's some acknowledgement from Google that this is being investigated:

https://productforums.google.com/d/msg/mobile/loqbCbKVMWE/TSltZXFgQkMJ

Also just to keep this thread up to date, the other recent post by Paul @ Google confirms what was already extremely suspect...

"Google is still working on this. To be clear, the JRO03S build doesn't include any changes that affect this issue."

placebo much you guys :p
[Nexus 7 General] GreatBigDog:
I found that my Google Play Music app had a cache of almost 800Mb. After clearing that cache there was great improvement.
[Nexus 7 General] rootusr:
Not for me, I already tried that, first from the OS trying to clear the cache of most apps, nothing, then wiping the cache partition from cwm and still lagging. At the end I did a factory reset and the magic is back... At least for now
[Nexus 7 General] Metallice:
I, nor anyone else (I believe), meant to imply that JRO03R (or in this case S) conclusively fixed the I/O issue. As I said always my I/O scores still plummeted with the new builds. For me JRO03R, along with Fsync off, data remount tweaks, custom kernel, etc. sufficiently "fixed" the symptoms of the problem, i.e. no more lag.

It's not placebo, but its also not a true fix.
[Nexus 7 General] xopher.hunter:
Odd, I have just been hit by the lag again, I have 4.12 gigs free yet I get an abysmal .31 random write.
[Nexus 7 General] Dragooon123:
That's pretty good, random write on fresh stock is about .45-.5MB/s