Regardless of the card used, Tablet 2's read speed is much slower. I reformatted each card in Tablet 2, re-ran the tests and had the same result.
Can anyone tell me, Is my tablet slow or is my wife's tablet exceptionally fast?
If someone else wants to try this, here is how I did the test.
1. Install SD Card Tester (free) from Play Store
2. Go to Task Manager then Ram manager and press Clear Memory
3. Start SD Card Tester
4. Set path to /mnt/exSdCard
5. Leave file size set to 300MB
6. Press Start Test and wait for completion
7. Write speed is on the left, read speed is on the right
8. Run test two more times and average times
Any help would be appreciated.
- Both tablets are running 4.0.4 (UEBLH2)
- Both cards are Sandisk Ultra 32GB class 10, UHS-1
- In SD Card Tester, the path was /mnt/exSdCard using a 300MB file size (using larger files gave the same result - it just took longer to complete each test)
jwither - With 20+ years of computer experience, I try very hard to be exact and consistent. With that being said, I think I may be a moron.
I heard the last thing you said and went back to make sure I was not that dumb. Both of my tablets gave the same range of external card read speed - 6.3 - 6.7MB/s. Apparently, I am. I can not duplicate the 14+ MB/s on the external card.
All three of the P3113s I tested gave consistent 14 - 15MB/s read speed on the internal memory. I think Samsung used a class 10 memory for the internal memory, but the access for the external card is clearly different (buffer size, PIO versus DMA - something).
However, I think we can say I screwed up on this one and move on...
I am trying to copy 3 video files totaling 14.1 GB to my Tab's 32 GB memory card (£14 Transcend Class 4 memory card from Amazon) and the estimated time is 1 hour 40 minutes. It seems to be taking that long, too.
Copying to the internal memory isn't too much quicker.
Nothing is running on the PC or tablet that would slow the process.