Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,769,680 Members 45,137 Now Online
XDA Developers Android and Mobile Development Forum

Before I return this unit as defective (slow I/O)

Tip us?
 
madelk
Old
(Last edited by madelk; 1st August 2012 at 03:26 PM.) Reason: Added AndroBench(marks)
#1  
Junior Member - OP
Thanks Meter 0
Posts: 17
Join Date: May 2007
Drive Before I return this unit as defective (slow I/O)

Ever since I got my Nexus 7 I noticed it was a little on the slow side, when playing 3D games I experienced a lot of freezing and issues when it was loading in new textures but more recently I've noticed these issues get worse. Downloading an app is tremendously slow with it taking several minutes to download just a few meg while my phone completes the same task in seconds. From what I've been able to deduce it seems like an I/O issue as my Quadrant score is just barely over 700 when an average appears to be at least double that. It also took several attempts to download Quadrant as the package file kept coming back as invalid when downloading from the market.

Is there anything I'm missing here that I should try? I rooted the device a week or so ago but I don't see how that could of borked it (but I'm not a doctor). I've also tried searching for others having this issue, but trying to search for "Nexus 7 I/O" brings up mostly hits about the announcement

UPDATE: I've just finally got AndroBench installed, here are the horrific results.
MICRO
SEQ RD: 17.83 MB/s
SEQ WR: 0.56 MB/s
RND RD: 1548.85 IOPS(4K)
RND WR: 33.0 IPOS(4K)

SQLite
Insert: 1.36 TPS
Update: 3.29 TPS
Delete: 3.17 TPS

UPDATE2: After a full wipe I'm scoring this:
MICRO
SEQ RD: 12.29 MB/s
SEQ WR: 7.8 MB/s
RND RD: 753.66 IOPS(4K)
RND WR: 74.12 IPOS(4K)

SQLite
Insert: 27.74 TPS
Update: 26.15 TPS
Delete: 28.92 TPS
 
AuxiliaryPie
Old
#2  
Member
Thanks Meter 26
Posts: 89
Join Date: Oct 2010
i would try flashing stock and starting over from fresh out of the box. The return process is bothersom and if for some reason this fixes it, you save yourself a lot of headache. Plus if you return it, you're gonna wanna be unrooted and locked anyways
The Following User Says Thank You to AuxiliaryPie For This Useful Post: [ Click to Expand ]
 
madelk
Old
#3  
Junior Member - OP
Thanks Meter 0
Posts: 17
Join Date: May 2007
Quote:
Originally Posted by AuxiliaryPie View Post
i would try flashing stock and starting over from fresh out of the box. The return process is bothersom and if for some reason this fixes it, you save yourself a lot of headache. Plus if you return it, you're gonna wanna be unrooted and locked anyways
I am running a stock ROM and I didn't install a bootloader. I figured that the device was cool enough that I really didn't want to mess with custom ROMs anyhow. But you're right, no reason not to wipe it if I'm going to return it anyhow.
 
madelk
Old
#4  
Junior Member - OP
Thanks Meter 0
Posts: 17
Join Date: May 2007
After a full wipe some of my scores have improved and apps are installing faster, but these scores still seem a little lame.
Can any other Nexus 7 owners out there offer their own for comparison?
 
y2whisper
Old
(Last edited by y2whisper; 1st August 2012 at 04:30 PM.)
#5  
Senior Member
Thanks Meter 219
Posts: 2,179
Join Date: Aug 2006
Location: Toronto
not a benchmark guy but will install this app and let you know my results

EDIT here they are

MICRO
SEQ RD: 28.76 MB/s
SEQ WR: 11.25 MB/s
RND RD: 1927.82 IOPS(4K)
RND WR: 133.32 IPOS(4K)

SQLite
Insert: 60.65 TPS
Update: 65.74 TPS
Delete: 68.82 TPS
Google Nexus 5 by LG 32GB
Slimkat 6.6
Faux Kernel


Google Nexus 7 by Asus 32GB
Stock L Preview - Rooted
Stock Kernel
The Following User Says Thank You to y2whisper For This Useful Post: [ Click to Expand ]
 
phcahill
Old
#6  
Junior Member
Thanks Meter 4
Posts: 9
Join Date: Jan 2007
I have opened a case with Asus about this. Please do the same if the i/o slowdown is happening to your Nexus 7.
If anyone knows how to open a case with Google, please post.
The Following User Says Thank You to phcahill For This Useful Post: [ Click to Expand ]
 
E_Goldstein
Old
#7  
E_Goldstein's Avatar
Senior Member
Thanks Meter 116
Posts: 643
Join Date: Nov 2011
Location: 192.168.0.1
Here is my results on a week old C80 model with only 500mb left

Sent from my Nexus 7 using Tapatalk 2
Attached Thumbnails
Click image for larger version

Name:	uploadfromtaptalk1347270932478.jpg
Views:	480
Size:	57.3 KB
ID:	1315588  
Galaxy Note 2 16gig
HTC Leo - 32gig micro sd
S/E X8i

 
Mungulz
Old
#8  
Senior Member
Thanks Meter 82
Posts: 463
Join Date: Oct 2011
Location: Sydney
Quote:
Originally Posted by E_Goldstein View Post
Here is my results on a week old C80 model with only 500mb left

Sent from my Nexus 7 using Tapatalk 2
Your device is sloooow.. too much stuff installed im guessing

Sent from my Optimus 2X using Tapatalk 2
 
E_Goldstein
Old
#9  
E_Goldstein's Avatar
Senior Member
Thanks Meter 116
Posts: 643
Join Date: Nov 2011
Location: 192.168.0.1
Quote:
Originally Posted by Mungulz View Post
Your device is sloooow.. too much stuff installed im guessing

Sent from my Optimus 2X using Tapatalk 2
I guess it is but everything loads fine, and quick enough its just full of games waiting from my 64gig flash drive to arrive so i can play them all from that, but ive got no problems

Sent from my Nexus 7 using Tapatalk 2
Galaxy Note 2 16gig
HTC Leo - 32gig micro sd
S/E X8i

 
phcahill
Old
#10  
Junior Member
Thanks Meter 4
Posts: 9
Join Date: Jan 2007
I and maybe others have managed to get an article published on The Register.

http://www.theregister.co.uk/2012/09/11/nexus_7/

However the commentards have missed the issue and think that owners are bleating that they only have 13GB and not 16GB or that it runs slow when 99% full.

Please comment on the article that write performance is still a tenth of what it should be, even when the file system is cleared down so that lots of space is free.
So far the only solution is a factory reset.

Tags
i/o, nexus 7, read, slow, write
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes