Does anyone know a way to check the speed (data transfer) of the internal memory in the T-Mobile G1???
I wanted to compare it to my class 10 microsd
And for those of you guys that already have the benchmarks, would you mind posting them here please?
Appreciate the help.
I'm not sure if there is an easy way to do this, but you can write a simple program/script and use a timer (ms) that is started and then stopped after a transfer of say, 10MB, to and from /data and then do the same to and from /sd-ext/ and check to see which one has the faster read/write times.
I can almost guarantee that the internal memory will be faster.
[Edit]10MB may be a bit much, something smaller like 2MB would probably be alright.[/Edit]
Related
Hi all,
I have a SDHC 8gb (Class 4). I tested its speed with J-benchmark. Frequent test shows that the write speed of this SD isn't any better than class 2 sd card i used before(4 gb).
I usually get write speed of 1.5mb/s and read speed of 2.5mb/s. Today I decided to change the buffer size to 8kb and got 4mb/s write speed. This is what a class 4 card should normally hit right?
So, I'd like to know if there's any way i can increase the buffer speed while transfering files from my PC. I'm really having a hard time copying movie files to my sd card. Files transfer of larger than 100mb take ages and even get disrupted at times.
Thanks for the help!!!
pradeepkc said:
Hi all,
I have a SDHC 8gb (Class 4). I tested its speed with J-benchmark. Frequent test shows that the write speed of this SD isn't any better than class 2 sd card i used before(4 gb).
I usually get write speed of 1.5mb/s and read speed of 2.5mb/s. Today I decided to change the buffer size to 8kb and got 4mb/s write speed. This is what a class 4 card should normally hit right?
So, I'd like to know if there's any way i can increase the buffer speed while transfering files from my PC. I'm really having a hard time copying movie files to my sd card. Files transfer of larger than 100mb take ages and even get disrupted at times.
Thanks for the help!!!
Click to expand...
Click to collapse
Random no-name brand? No surprise.. Lots of cheap, slow, unstable storage cards out there these days.
J-Benchmark isn't of much use if you don't know what the real workd transfer speed is, so you might want to try testing it against the computer... Send a large file, time it, see how long before you can safely remove the device.
khaytsus said:
Random no-name brand? No surprise.. Lots of cheap, slow, unstable storage cards out there these days.
J-Benchmark isn't of much use if you don't know what the real workd transfer speed is, so you might want to try testing it against the computer... Send a large file, time it, see how long before you can safely remove the device.
Click to expand...
Click to collapse
well, it says transcend but i'm doubtful. Bought it at very cheap price from a wholesale market.
But there's something I've noticed, the transfer speed is slow through usb only...if i unmount the card and use it through a normal card reader its quite fast...I tried sending a 800mb movie file and it took just above 4 mins....
So, I don't think its the card that's the culprit. puzzled!!! could it be the rom i'm using or froyo itself?
I'm sorry that I can't be of any help, but i got the exact same problem. Bought a 16gb card, kingston brand, class4 (don't expect that much of it, but the stock was class 2, so i figured that it would be ok..)
I get horrible write speed, around 200-250 kb/s (or whatever it's called). Don't remember what the old one did, but it wasn't that bad.
I've plugged the card directly into the PC, and it gets much higher speeds..
Exactly the same problem, as u guys..
Come on, an hour to copy a movie to the phone, that's just not acceptable!
PS: have you tried this?
Mine was allready at 128, but it's probably worth a shot..
http://forum.xda-developers.com/showthread.php?t=921530
Hope anyone has some solutions to this, it's just seriously annoying
Oh, and i've got the desire with cm7 on it, it's not that different from the n1..
It's the phone not the cards. It just doesn't appear able to acheive transfer speeds higher than you'd get with a Class 2 SD card.
In the link i posted, there was a guy who found out a way around the limits of android on a EVO 4g device. I was hoping for a similar fix.. Or just something
Bought a Class 10 Kingmax and disappointed that write speeds are still maxing at 1.5 MBps Waste of money
2.5Mbps in recovery.
SOOOOOO SLOW copying videos over yaaawn.
Using a card reader means switching off the phone, which is not really an option IMHO.
You can benefit from the faster rated cards if you use a card reader, and even better if you buy a second card so that you can load up one while using the other. Quick swap, job done!
I have a Transcent 8GB class 6. I get speeds from 6mb/s-8mb/s.
So I have been tinkering with a chroot environment on a ext3 partitioned portion of my external sdcard. It is similar in partitioning to webtop2sd, but I only use the partition for a chroot environment not the whole webtop.
My issue:
The chroot environment is slow, like really slow. This is most noticeable with unpacking packages. Installing ssh and the 5 dependent packages took 10 minutes.
My setup:
I have a patriot class 10 16GB card. The SD card speed tests show the write speed to be 9.7MB/s and read speed at 13.5 MB/s. Not super fast, but it should be sufficient.
SD Card Cache:
I am running gingerblur and it appears that kenneth has already applied the cache hack which increases the read_ahead to 2MB.
My Question:
The read_ahead hack appears to be is done to 179:0. Is it possible this is not affecting mmcblk1p2? I am able to mount the ext3 partition as either /dev/block/mmcblk1p2 or /dev/vold/179:34. Do I need to somehow add an entry in /sys/devices/virtual/bdi for 179:34?? Would this work?
Any help would be appreciated, I realize this is a complicated question being asked by a less then competent person, so if it has not been entirely coherent I apologize.
Solution
Well I solved my issue. Turns out that my Patriot class 10 SDcard, while capable of sustained high read/write speeds, was very poor at handling random access read/writes. I put what I thought was a crappy old class 2 card SanDisk and everything worked as it should. I have looked around and apparently this is a known issue with manufacturers downgrading random access in favor of high direct throughputs to get that "class 10" rating. I assume this is probably more so with low end manufacturers such as Patriot. I have since ordered a class 4 SanDisk card and I expect that it will work just fine. I will post back if it doesn't.
I am currently on CheckRom V4, XXLA4 modem, abyss note 3.2 kernel .
now my Internal SD write speed is very slow compare to the others.
in Antutu, it benchmarked 5.3MB/s write speed and 32MB read speed.
I used to have something like 15MB/s write speed on the internal SD, don't know why it slowed down half..
the external sd is fine (Lexar 32GB class 10), 10.7MB write and 21MB read, which is as expected from the spec.
anyone know what happened? anything I can do to get back the internal write speed it supposed to have? Thanks
Bump, someone can help me please ?
Sent from my GT-N7000 using XDA App
sometimes you need to wait more than 6hours for a post to be replied on here have some patience!
what speeds do you get when transferrring files to it? dont always rely on a benchmarking tool for speeds
Richy99 said:
sometimes you need to wait more than 6hours for a post to be replied on here have some patience!
what speeds do you get when transferrring files to it? dont always rely on a benchmarking tool for speeds
Click to expand...
Click to collapse
I am so sorry for the urgency but I kinda worry if my Note's internal SD card degrading or even defective.
I tried copy a 2GB single file from my computer to the Note,
the internal SD write speed reported by Windows is around 7MB/s and the external class 10 SD is around 11MB/s
which is still slow. it used to have 15MB/s + (the internal SD)
Thanks
When you plug it in what does your computer mount the phone as? I.e. Does it assign it a drive letter and call it removable disc or does it mount it as 'phone'.
When i got the phone (so stock rom) it mounted as a drive letter and speeds were good, i then rooted and flashed rocket rom on and then it was mounting it as 'phone' with very slow transfer speeds.
Not sure if this is the case for you but i enabled usb debugging (settings > applications > development > usb debugging) and the speed is back to normal.
Im new to the android scene so not sure if this is even relevant!
have the same problem
Galaxy s3. Since omega v44.x android 4.2.1 my write and read speed are very slow. Gallery and contacts also very slow...
So i downloaded a tool to help me figure out my read/write speeds for the Samsung SD card i got. I have no idea what normal speeds should be, but i know that when my device was just freshly rooted with no other mods, my internal and external were pretty close together around 800-900 MB/s for read and write. Now after getting xposed installed and doing a few mods, my write speed has dropped to under 250MB/s and read is under 750MB/s.
Anybody know what i should be seeing? I used SD Tools from the app store. Could this be why there is lag now, that many people are seeing?
Hi guys,
What is the fastest memory card speed G6 (not plus/play) can use? Somewhere I read Motorola recommends U1 or faster. Is it worth investing in a fast card?
E.g. a Sandisk 32GB 100/90 MB/s is the same price as a Samsung 64GB 100/60 MB/s so if the phone couldn't use the fastest speed anyway, I'd rather take larger capacity.
I'm planning to put apps on the card. My old phone has slowed down considerably when I did that, so if the G6 CAN use the faster speed, I'd prefer that.
Thanks!
Sandisk 160/60 card gets 77/44 on moto g6. The same card gets higher speed on a lower end phone. Apps run okay at that speed on g6 but don't know if consistent use for apps lowers overall performance. Other users should post their speeds so we can get an idea what's the max speed g6 can get out of microsd cards.
Actualy in the meantime I bought the Sandisk Extreme Plus A1/V30 (95/90 MB/s), I just haven't installed it in the phone yet.
@e4noob what app did you use for benchmarking?
//Edited card name/specs
dontknowme said:
Actualy in the meantime I bought the Sandisk Extreme Pro A1/V30 (100/90 MB/s), I just haven't installed it in the phone yet.
@e4noob what app did you use for benchmarking?
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Click to collapse
I used androbench. Please post the speeds on this card. I'll predict around 80/50. I have this suspicion that g6's card reader might be low quality. But it would be nice to be proven wrong on that.
e4noob said:
I used androbench. Please post the speeds on this card. I'll predict around 80/50. I have this suspicion that g6's card reader might be low quality. But it would be nice to be proven wrong on that.
Click to expand...
Click to collapse
Okay I put the card in the phone and ran 4 tests with Androbench. The *best* results, rounded up to 5/50 from each category are:
Squential read/write: 80/65 MB/s
Random r/w: 4200/1400 IOPS
SQL Insert/Update/Delete: 950/1200/1900 QPS
This is a brand new Sandisk Extreme Plus 32GB card (95/90 MB/s) formatted as external storage.
Also ran 2 tests on internal storage (note this phone has been in use for 2 weeks and it's half full so there's certainly some data fragmentation):
Squential read/write: 260/100 MB/s
Random r/w: 11600/5300 IOPS
SQL Insert/Update/Delete: 1100/1200/1550 QPS
Not sure what to think of the SQL numbers but in the random r/w performance the internal memory trashes the memory card so it's probably not the best for running apps. Sequential write is quite close though so I guess Sandisk's claim of 4k video recording holds true.
Hm, I wonder if there are memory cards meant for faster random access (like an SSD) and would phones be able to take advantage of such speed?
Edit: fixed my mistake about what card I have. It's a Extreme Plus 95/90, not Pro.
~ never mind, a rant was here how I can't format the card as internal storage but I found it. Good.
After formatting as internal, the phone complained the card is slow.
I let it move 4.5 GB of data from internal memory to the card, which the phone said would take 7 minutes. It was done in about a minute.
dontknowme said:
~ never mind, a rant was here how I can't format the card as internal storage but I found it. Good.
After formatting as internal, the phone complained the card is slow.
I let it move 4.5 GB of data from internal memory to the card, which the phone said would take 7 minutes. It was done in about a minute.
Click to expand...
Click to collapse
I've seen that too (phone warning the card is too slow) when I was experimenting with internal storage format. If you face any issues like phone wigging out or apps going missing or card crashing, let us know here.
e4noob said:
If you face any issues like phone wigging out or apps going missing or card crashing, let us know here.
Click to expand...
Click to collapse
No problems so far!
On my last phone with a basic Class 10 Kingston card, I had problems with apps disappearing after a reboot. It was especially annoying with Amazon Kindle which was the biggest (movable) app and I had to keep it in the phone memory.
No problems with the Moto. I even enabled the developer option to force apps which don't support it onto the card and they all work fine. Which is super cool especially for navigation apps with their massive offline maps. Neither Sygic nor HERE We Go support moving the app onto the card. (In both cases you can move the maps onto the card but only if it's formatted as external storage, not internal.)
Apps start really fast. I *think* I can sense some slowdown when running some apps like Duolingo and LingoDeer compared to when running from internal memory, but it might as well be my imagination. I see no slowdown when running Waze which is a lot larger. And the phone is slightly slower to boot but that's no biggie. It wasn't fast to begin with. But all the card apps are available IMMEDIATELLY upon booting, while on my old phone/card it took another minute to initialize.
Last night I noticed the phone tends to kill background apps way too aggressively, which is bloody annoying but I doubt that has anything to do with the card, it's more like another stupid Android/Motorola feature. (I have the adaptive battery feature disabled.)
Another odd thing is that the storage reports 5 gigs of games in the internal memory even when I moved all games onto the card, so that's clearly another Android bug.
So yea, I think it was worth it investing a little more in a faster card. I wish the phone would be faster overall but for what it is it's fine and the card isn't slowing it down so far.