I made a short benchmarking comparison between ExFAT and NTFS in pure MBR and GPT modes.
<tl;dr>
NTFS is twice as fast for writing performance compared to exFAT!
And you shouldn't use the tablet's internal function to erase/format the SD Card.
</tl;dr>
SDCard:
Kingston SDCA3/64GB microSDHC/SDXC
- UHS-I U3, nominal speed: 90 MB/s read; 80 MB/s write
- According to some comparisons I found this card is currently one of the best with practical speeds nearly the same as the nominal speeds. (http://www.techfunology.com/electro...for-photography-action-cams-and-videocameras/)
Tablet:
Nvidia SHIELD Tablet
- classic non-K1
- 32GB LTE
- ROM: currently latest Lollipop stock 3.1.1
Benchmark:
A1 SD Bench
- https://play.google.com/store/apps/details?id=com.a1dev.sdbench
- Mode: Accurate - with reboot
-> reboot between write and read - a short test shows that the "Longer" mode with 5GB data results in similar values
results:
card erased by SHIELD itself
-> Settings -> Storage -> erase SD Card
-> results in exFAT MBR + GPT (but in a weird dual non-hybrid way, so you really shouldn't use the tablet for this!)
read: 80,97 MB/s
write: 18,91 MB/s
external formattings:
exFAT GPT (protective MBR)
read: 79,54 MB/s
write: 23,12 MB/s
NTFS MBR (no GPT)
read: 79,81 MB/s
write: 40,69 MB/s
NTFS GPT (protective MBR)
two runs:
read: 79,92 MB/s
write 40,44 MB/S
------
read: 80,27 MB/s
write 45,15 MB/s
As you can see, there is no real difference between MBR and GPT.
However, there is a huge difference between ExFAT and NTFS in writing speed.
NTFS is twice as fast for writing performance compared to ExFAT.
Reading speeds seem nearly the same.
The tablet's internal function to erase/format the SD Card should not be used as it produces strange formatting results.
Nice comparisons.
Just curious, which ROM version was this tested on?
Good point. It's on latest Lollipop stock v. 3.1.1
Would be interesting to see how this compares on MM 4.0 in either portable or internal storage modes.
I'm not really sure how one could test the infernal storage mode reliably. As far as I know it shows up as one large logical partition, so I don't see how it might be possible to just test the physical sd card of this partition. Has anyone more information about this?
Vankog said:
I'm not really sure how one could test the infernal storage mode reliably. As far as I know it shows up as one large logical partition, so I don't see how it might be possible to just test the physical sd card of this partition. Has anyone more information about this?
Click to expand...
Click to collapse
No, under settings --> storage you have to move apps to the SD card. Though I"m not sure how it works in a file manager app.
What did you use for the "external formattings"? I.e., what program?
I didn't try ntfs, exfat & adopted only:
https://drive.google.com/folderview?id=0B9k8W8e2YrFfQ1VCTlpfLUVualU
I think that k1 has sd card slot with max ~80/40 R/W.
Hi,
I don't think this story is still true on a new device with an newer Android. I also did a small benchmarking comparison between NTFS and exFAT.
SDCard:
Lexar Professional 1800x microSDXC 64GB UHS-II
- UHS-II upt to 270 MB/s read and 250 MB/s write
Tablet:
Nvidia SHIELD Tablet K1
- new K1
- 16GB
- ROM: currently Marshmallow 6.0.1 stock 1.5 (24.3.70.8)
Benchmark:
A1 SD Bench (https://play.google.com/store/apps/details?id=com.a1dev.sdbench)
results:
NTFS
read: 60.96 MB/s
write: 74.53 MB/s
exFAT
read: 82.64 MB/s
write: 71.32 MB/s
Best Regards,
Datafreak
Thanks for the new data, datafreak! :laugh:
Well, could be either the K1, the new OS version or a combination of both. But the 70 MB/s write speed is amazing.
Maybe I'll do a new test when I update to the latest version on my non-K1.
apollyon0810 said:
What did you use for the "external formattings"? I.e., what program?
Click to expand...
Click to collapse
Hm, I think it were several different.
On Mac the integrated one I think it is called diskpart, for Windows the integrated formatting tool should do the trick. Besides that I used a partition manager. I think it was the free MiniTool Partition Wizard.
dzidexx said:
I didn't try ntfs, exfat & adopted only:
https://drive.google.com/folderview?id=0B9k8W8e2YrFfQ1VCTlpfLUVualU
I think that k1 has sd card slot with max ~80/40 R/W.
Click to expand...
Click to collapse
What I/O scheduler did you use? noop,cfq,deadline? did you tune the i/o's or leave them stock?
m0nt3s said:
What I/O scheduler did you use? noop,cfq,deadline? did you tune the i/o's or leave them stock?
Click to expand...
Click to collapse
It was all stock(1.4), few days after I bought k1 - noop.
datafreak said:
Hi,
I don't think this story is still true on a new device with an newer Android.
Click to expand...
Click to collapse
Could also just be the different SD card, I'd say.
I have a Shield K1 with Android 6.0 and just ran A1 SD benchmark. Same memory card formatted to exFAT and then to NTFS (used windows to format each time). Almost the same exact read/write results both times. I am testing another card tonight when I get home, but I suspect it will be the same.
@seh6183
That's an interesting fact.
What are the speeds?
Vankog said:
@seh6183
That's an interesting fact.
What are the speeds?
Click to expand...
Click to collapse
NTFS
Read: 19.55MB/s
Write: 12.03MB/s
exFAT
Read: 19.72MB/s
Write: 12.21MB/s
I tested a much faster, much bigger card later that evening on both exFAT and NTFS and got the same results.
Hello,
Sorry if it was asked before, but I could not find anything on this matter here.
Situation is this - when I connect my Redmi Note 2 / 16GB to PC, it shows that internal memory/storage available is 11.5GB and 3.4GB of it is free, but ALL FILES in the internal memory occupy only 1.1 GB. Amount of files is around 5000 so they don't eat much memory too.
Q is - where is the rest?
Almost 7 GB is missing !!!
Thanks in advance.
PS. I'm using official MIUI 8 Global 7.6.8
Did you try with Security->Cleaner?
Guys I am very new here. I created an account for this problem.
My Internal Storage says that im already occupying 51.89 gb out of 64. So Im wondering why is that since i dont have much movies and games in it.
Then i checked my internal storage and checked it's overall data via highlighting all files and folders and clicking details it said 28.81 gb overall.
SO I DONT REALLY KNOW WHERE THAT PRECIOUS 30 GB IS ! SOMEBODY HELP ME. IM LITERALLY CRYING RN.
Was searching someone who has the same problem but i cant find one ;_;
Update:
Just found out the storage breakdown (Lel pretty dumb sorry)
System Memory: 10.02 gb
Used Space: 24.48 gb
Other: 16.93 gb
cached data: 1.94 mb
Is it normal that the used space is separated from the "Other" AFAIK the used space is everything in the internal storage. Now whenever i select the other it also leads me to the internal storage so I am Very confused. I need Halp
Hello, I'm new to tinkling with android devices. Bear with my assumptions or better, correct me.
I recently bought a phone from a not well known brand... so finding specific help is hard and I'm not concerned about their 'said' warranty.
Phone is advertised as 32GB and 3GB but the storage behaves as 16GB. The manufacturer's file manager shows 32 GB.
But digging, my computer shows 12.## GB out of 32 I've installed solid explorer and it shows 12.## GB space.
With solid explorer and DiskUsage, I believe there can actually be 16 GB unused space.. I explain..
The root folder shows a /data folder that has two parts, 16.2 used and 15.8 free.
Image: saykenya.(com)/Screen32.png
My calculations show that cache, dev, storage,system all add up to 16Gb which makes sense. Where is the other 16 (15.8) GB?
So I thought the phone actually has 32 GB but part of it is not mounted and you can help me mount it for use.
... I've seen there's a ROM for it at needrom website but but how sure? I have it in my laptop.
...I've wanted to create a nandroid backup but but cwm recovery has not supported it
...I've been googling about resizing partitions but but I don't have a recovery route
... I will definitely attempt some adb commands but isn't it better if I'm more informed?
Phone is called Hotwav s8
hi, i have had a quick look but cant see much about this tablet, it is my childs and they need to increase the storage as it doesnt hold much,. i bought a sdcard, but it only sees it as external storage.
We dont want to unlock, root or anything that huawei seem to restrict, i just need to use external storage as internal,. or move apps / games to sd card.
It is a Mediapad T3 10" AGS-W09 using EMUI 5.1.3
in the UK.
Please help me with this.
I'm looking for the same thing, but from what I've read it can't be done, it's blocked by Huawei.