Hi,
What I'm trying to find out is would using just an in-built memory on an Android phone be generally faster than SD usage? I'm particularly interested in using an Android phone as a sole media device. With a 32GB SD I'm generally not happy with speeds etc. Would getting a 32GB device with that memory on the device improve data transfer with the computer and accessing the data on the phone?
Thanks for any info. that helps me understand! :good:
SharpnShiny said:
Hi,
What I'm trying to find out is would using just an in-built memory on an Android phone be generally faster than SD usage? I'm particularly interested in using an Android phone as a sole media device. With a 32GB SD I'm generally not happy with speeds etc. Would getting a 32GB device with that memory on the device improve data transfer with the computer and accessing the data on the phone?
Thanks for any info. that helps me understand! :good:
Click to expand...
Click to collapse
In the general case, a Class 10 SDcard got about the same speed as the internal (mtd or mmc) disk.
kuisma said:
In the general case, a Class 10 SDcard got about the same speed as the internal (mtd or mmc) disk.
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Click to collapse
This. Not all SD Cards are the same. Make sure yours is a class 10 card and not one of the slower versions.
I did start to have a look at that recently. I'm using a class 4. I seen you can get a class 10 very cheap now, compared to a few years ago. I purchased the 32GB SD as a (minor purchase) test to see how well it works. I think it has potential, but in transfer speeds, my iPod still kicks ass. It can transfer a song per second, but at the moment, my Android phone transfers 1 song every 4 seconds.
If it would make a significant performance boost in this area, I'll definitely try that class 10!
Something like this?
http://www.ebay.ie/itm/221087900172?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
http://www.ebay.ie/itm/320956174043?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
In-built memory is the fastest but these days Class 10 SD cards are very near the W&R speed of in-built memory.
So try buying a quality Class 10 SD card and im sure you will have better experience with it.
Hreidmar said:
In-built memory is the fastest [...]
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Not necessary: http://forum.xda-developers.com/showpost.php?p=29289018&postcount=7
What read & write speeds (MB/s) are you getting on your XTZ? Internal storage, not external SD Card.
I usually measure it on my phone with https://play.google.com/store/apps/details?id=air.com.anotherflexdev.sdcardtester.SDCardTester&hl=en but I am sure there are better apps that allow fine grained measure slike 4k random accesses vs sequential and so on.
I am having trouble finding that data for the Xperia Tablet Z and it is an important factor in my purchasing decision.
Thankyou.
brugobo said:
What read & write speeds (MB/s) are you getting on your XTZ? Internal storage, not external SD Card.
I usually measure it on my phone with https://play.google.com/store/apps/details?id=air.com.anotherflexdev.sdcardtester.SDCardTester&hl=en but I am sure there are better apps that allow fine grained measure slike 4k random accesses vs sequential and so on.
I am having trouble finding that data for the Xperia Tablet Z and it is an important factor in my purchasing decision.
Thankyou.
Click to expand...
Click to collapse
I am attaching andro bench test results for the tablet z.
4k random writes, for example, come to about 1.1MB/s.
Thanks a lot.
So 47MB/s sequential and 15MB/s write. That means you can copy a movie from the tablet to a USB2 disk at max speed and copy from the disk to the tablet at like 60% speed.
As a reference, here is Anantech's latest benchmarks on other devices. It is the Note 3 review just skip to the NAND section.
http://www.anandtech.com/show/7376/samsung-galaxy-note-3-review/4
An USB2.0 disk will yield about 25MB/s sequential, a cheap old internal PC HDD is about 90MB/s (both write and read though) and a real SSD between 150MB/s on SATA 2 up to 450ish on SATA3. IOPS are another matter of course.
I like this tablet but I think I will wait for a tablet with faster eMMC and faster WIFI (ac). Maybe next model.
Thanks for your input.
Posting tablet NAND data instead of smartphone. I cannot edit previous post. I hope this is useful for those who land here from the search box.
http://anandtech.com/show/7378/samsung-galaxy-note-101-2014-edition-review/2
As provided above by francobarber:
Xperia Tablet Z Sequential read: 47.34 MB/s
Xperia Tablet Z 4kB Write: 1.1 MB/s
I ordered a Shield K1 Tablet for my son and the one apprehension I have is that it only includes 16GB of internal memory. Nvidia has already pushed out a 6.0 update for the device so adopting an SD card for internal storage seems like a logical option. My question is around the performance hit for doing so. I'm considering buying a 64GB Class 10/U3 SD card with write R/W speeds of up to 95/90 MB/s. I've googled around a bit and found some articles discussing the theoretical performance of adopted storage, but no actual testing.
Does anybody have experience with adoptable storage in Marshmallow and/or links to benchmarks? Any help is appreciated.
I have an oldish phone and I used a 64GiB class 10 /UHS card.
The performance is very bad. When formatted to be adopted storage, the card is encrypted, and all encryption/descryption happens in software, at least for ARMv7 CPUs (I'm still not sure what happens with 64bit ARMv8, different sources seem to post different things on that).
The app "Disk speed test" reports 18MB/s write and 3.8 MB/s read for this card. The phone is galaxy s4 mini. Apps placed on that storage are unusably slow.
Hi.
I have a Sony Xperia Z2 with lollipop. The device is not rooted. I was using a sony 32GB Class 10 U1 micro SD card (SR-32UYA/TQ1). It is rated at 40MB/s read speed. The write speed is not mentioned. When I tested it with A1 SD bench I was getting a read speed of around 33MB/s and a write speed of around 15MB/s.
I just upgraded to a Samsung PRO 64GB Class 10 U3 Micro SD card. The Read speed is 90MB/s. The write speed is 80MB/s. When I tested it using A1 SD Bench i was getting read speeds of around 42MB/s and write speeds of around 40MB/s. This is half the advertised speed. Is this what I should expect from this kind of card? And what is the max read/write speed that the Xperia Z2 can handle? Thanks.
Its more of a device configuration thing
My Sandisk Sdcard is rated for 32mb/s but i get 50-60 because of the file system type, i/o scheduler and buffer cache sizes
R/w speeds have a bunch of factors and usually "rated speed" is A maximum of instead of what a user would ever see
Right! You will get those values when you put card into a card reader with USB 3.0 support. Beside the setting of IO scheduler and read ahead cache can effects 10-20% benchmark scores.
Hi, so what can u advise and tips when buying sd card. Thanks.
Envious_Data said:
Its more of a device configuration thing
My Sandisk Sdcard is rated for 32mb/s but i get 50-60 because of the file system type, i/o scheduler and buffer cache sizes
R/w speeds have a bunch of factors and usually "rated speed" is A maximum of instead of what a user would ever see
Click to expand...
Click to collapse
Would you please post your settings?
Hello!
As today, in 2018, a A1 rated micro SD Card is worth to use with the Xperia Z2?
Thank you!
I want to have a new micro SD card ready to go when I pick up my V30+ next week. There are some decent deals for 128GB cards at BestBuy and Amazon. I have tried searching for the info but haven't had any luck finding the maximum read and write speeds the LG V30's micro SD slot is capable of.
Samsung EVO Plus 128GB - BestBuy
Samsung EVO Select 128GB - Amazon
They are essentially the exact same card, just different branding due to when they were manufactured. Same specs and all but the EVO Select seems to be the newer of the two where the EVO Plus has been around since 2015. If the V30's micro SD card slot isn't capable of 100MB's read and 90MB's write, then I may as well go for something cheaper and slightly slower and save $7.
SanDisk Ultra Plus 128GB - BestBuy
Is anyone aware of what the maximum capabilities of the V30's micro SD slot is capable of? Is there a way to test this that someone wouldn't mind testing and posting their results?
jcsww said:
Is anyone aware of what the maximum capabilities of the V30's micro SD slot is capable of? Is there a way to test this that someone wouldn't mind testing and posting their results?
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Click to collapse
Somebody did that a few weeks ago, I'll see if I can find the post.
EDIT
I was mistaken. It was the internal storage read/write speeds they tested.
V30 Internal storage speed?
https://forum.xda-developers.com/lg-v30/help/v30-internal-storage-speed-t3687990
They were trying to determine whether the LG V30/V30+ had UFS 2.0 or 2.1. It has UFS 2.1. (Earlier this year, Samsung shipped some S8 phones with both standards -- the Snapdragon S8 got 2.0 while the Exynos S8 got 2.1, while all chipset versions of the S8+ got 2.1.)
But several websites have done thorough reviews and have stated what's inside the V30/V30+, including exact components...
ChazzMatt said:
Both the LG V30 and V30+ have Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) internal storage
LG's press release:
http://www.lgnewsroom.com/2017/08/l...ier-with-premium-cinematography-capabilities/
Memory:
V30: 4GB LPDDR4x RAM / 64GB UFS 2.1 ROM / MicroSD (up to 2TB)
V30+: 4GB LPDDR4x RAM / 128GB UFS 2.1 ROM / MicroSD (up to 2TB)
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Other sites even give the manufacturer and component number:
https://www.androidheadlines.com/2017/10/lg-v30-review-ultimate-creativity-tool.html
Inside is a Qualcomm Snapdragon 835 chipset with Adreno 540 GPU, 4GB of LPDDR4X ram and either 64GB or 128GB of Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) internal storage, all with microSD card support for expandable storage.
Click to expand...
Click to collapse
This 6-inch display features a Quad-HD+ (1440 x 2880, 538 PPI) resolution 18:9 panel with nearly zero bezels all around, and is covered in Gorilla Glass 5. It’s also both Dolby Vision and HDR10 compliant. Inside is a Qualcomm Snapdragon 835 chipset with Adreno 540 GPU, 4GB of LPDDR4X ram and either 64GB or 128GB of Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) internal storage, all with microSD card support for expandable storage.
Click to expand...
Click to collapse
As it’s pushing the same resolution screen as the G6 with a processor and GPU boost, it’s pretty obvious why the phone feels so blazing fast all the time. Combine this with Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) storage and you’ll quickly understand that LG has outfitted the V30 with the highest end components available right now.
Click to expand...
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Even the Toshiba UFS 2.1 storage inside is a perfect match for Samsung’s best UFS 2.1 storage, which is used in most flagships now, and averages out just as fast as those chips. See the results of the benchmark suite we run for each phone, including 3DMark Slingshot, GeekBench 4, AnTuTu V6 and Futuremark’s PCMark internal storage test.
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Click to collapse
https://www.anandtech.com/show/11789/hands-on-with-the-lg-v30
Under the hood, the V30 is powered by Qualcomm's Snapdragon 835, with LG using a heatpipe to assist in cooling. This is paired with 4 GB of LPDDR4X, and either 64GB or 128GB of UFS 2.1 storage.
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Just used the A1 SD card speed test app. LG V30 - Samsung 128GB Evo Select formatted as a 'removable' storage device - did the standard 4GB size write / read test twice without closing apps etc (so bit of a real life test) and once did reboot (waited 5 minutes before launching), ran the accurate test (does write, then reboot again with another 5 minute wait, then does read):
Test 1
Read - 64.01 MB/s
Write - 35.38 MB/s
Test 2
Read - 65.25 MB/s
Write - 33.13 MB/s
Test 3 (accurate test)
Read - 60.56 MB/s
Write - 37.63 MB/s
Based on other benchmarks I have seen for this SD card (~95 MB.s read and ~70 MB/s write), it does appear the V30 is not able to get full speed out of it.
And just for 'fun' here is what the internal memory was capable of in this app (only ran the 4GB test once):
Read - 524.87 MB/s
Write - 199.30 MB/s
I am wondering if even if it were stuck at the slower speeds, would this have any impact on the camera, video, music, etc? I am planning on using a 128G SD card also if I get this phone.
pjcforpres said:
Just used the A1 SD card speed test app. LG V30 - Samsung 128GB Evo Select formatted as a 'removable' storage device - did the standard 4GB size write / read test twice without closing apps etc (so bit of a real life test) and once did reboot (waited 5 minutes before launching), ran the accurate test (does write, then reboot again with another 5 minute wait, then does read):
Test 1
Read - 64.01 MB/s
Write - 35.38 MB/s
Test 2
Read - 65.25 MB/s
Write - 33.13 MB/s
Test 3 (accurate test)
Read - 60.56 MB/s
Write - 37.63 MB/s
Based on other benchmarks I have seen for this SD card (~95 MB.s read and ~70 MB/s write), it does appear the V30 is not able to get full speed out of it.
And just for 'fun' here is what the internal memory was capable of in this app (only ran the 4GB test once):
Read - 524.87 MB/s
Write - 199.30 MB/s
Click to expand...
Click to collapse
Excellent! Thank you!
banshee28 said:
I am wondering if even if it were stuck at the slower speeds, would this have any impact on the camera, video, music, etc? I am planning on using a 128G SD card also if I get this phone.
Click to expand...
Click to collapse
That should be enough to handle 4k and pictures being directly written to the micro SD card. You will want a card that is better than those speeds but there isn't any need to go for anything super expensive that are rated for super fast performance.
Found Out Too late..
While the measurement numbers are great info - I didn't need to run a test, I noticed as soon as I tried to play some PSone and PSP games. Any game with heavy disc access while trying to play (sports games especially, due to commentary) stuttered like I was running them off of an external USB hard drive. Move the game to internal storage and (obviously, from the benchmarks, above) no trouble at all.
This is disappointing, as I picked up this phone expressly due to its specs for playing games (It was on sale, and replaced my cheapie Blu phone). Not the end of the world; I can move games to internal that are particularly problematic, but rather annoying and ironic, as the games most affected are the ones taking up the most space, requiring the extra MicroSD storage...
Vinc3Has3 said:
While the measurement numbers are great info - I didn't need to run a test, I noticed as soon as I tried to play some PSone and PSP games. Any game with heavy disc access while trying to play (sports games especially, due to commentary) stuttered like I was running them off of an external USB hard drive. Move the game to internal storage and (obviously, from the benchmarks, above) no trouble at all.
This is disappointing, as I picked up this phone expressly due to its specs for playing games (It was on sale, and replaced my cheapie Blu phone). Not the end of the world; I can move games to internal that are particularly problematic, but rather annoying and ironic, as the games most affected are the ones taking up the most space, requiring the extra MicroSD storage...
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Click to collapse
Go AOSP/non-Stock, format microSD to ext4, flash custom kernel and see how it changes things,
write speed will be improved by 100% (so twice as fast), read speed approx. around 10-20% (or more) compared to exfat.
Also custom kernel got general speed improvements so that might make a difference - haven't tried running anything particularly heavy off the microSD though.
That particular thing is probably the reason why Android/Google doesn't recommend using microSDs - it can really degradate and mess with experience/fun at times
zacharias.maladroit said:
Go AOSP/non-Stock, format microSD to ext4, flash custom kernel and see how it changes things,
write speed will be improved by 100% (so twice as fast), read speed approx. around 10-20% (or more) compared to exfat.
Also custom kernel got general speed improvements so that might make a difference - haven't tried running anything particularly heavy off the microSD though.
That particular thing is probably the reason why Android/Google doesn't recommend using microSDs - it can really degradate and mess with experience/fun at times
Click to expand...
Click to collapse
Thank you for this info! I will definitely look into it - Although I just ran a few tests of my OLD phone, (A Blu Vivo 2(?) XL(?) - I forget), and it's read time from the micro Sd is atrocious, like 32 read and 24 write, and yet it plays PSone games just fine from the Micro SD - the SAME Micro SD that the LG V30 is stuttering on (and I've tried a drawer-full, now) - which leads me to believe it's some other type of bottleneck. After all, an actual PSone cd only reads form 150 to 300 KB (not MB) of data per second. Even with a single emulator emulating individual autonomous chips, there should be headroom, I would think, to keep things going.
... Aannnnd this moves me off-topic from this thread - So I'll stop right there.