Develop Bugs

WiFi performance?

Hi,
I'm connected to my LAN, router in same room, so signal quality is great.
Thing is, when I copy larger files from my PC over WiFi using any File Manager, speed is like 500KB/sec which is pretty low.
Any thoughts or ideas?

What are your speeds like just running Speed Tests?

11.5Mbit download, 3Mbit upload, that's what Speed Tests shows.
My laptop downloads the same files from my PC over the same WiFi network at 10MB/sec. I hoped GN would at least do more than 1MB/sec.
Sent from my Galaxy Nexus using xda premium

Sounds like its the apps problem if the speed tests show good down/up speeds.

I'm finding this aswell, It's really annoying me. On speed test I get about 7-800kbs which is ridiculous when I can download on my laptop over the same wireless network at ~6mbs (50Mbit internet connection). It doesn't bother me so much for installing apps and such as I they tend to be pretty small so its ok, the problem arises when transferring large files to the phone as it takes an age. It's also a problem as I was hoping to be able to stream my bluray rips to the phone, the video processor is fully capable of decoding the content but due to this annoying network bottleneck I can't play any films over around the 7GB mark and I've not got a prayer with my 20GB+ rips which over devices on the network have no trouble streaming.

Which app do you use to transfer?
Try to use different app.
schriss said:
Hi,
I'm connected to my LAN, router in same room, so signal quality is great.
Thing is, when I copy larger files from my PC over WiFi using any File Manager, speed is like 500KB/sec which is pretty low.
Any thoughts or ideas?
Click to expand...
Click to collapse

I'm still waiting for my Nexus so i can't exactly comment on the device itself, but I use the app "SwiFTP" on my Galaxy S2
I think its an awesome app - all you need is a FTP client on your computer and WiFi connection.
SwiFTP basically makes your phone a FTP server and you can use your PC client to connect to your phone and browse/transfer files. Usually speeds range about 2-3mb/s for me which is fast enough
Give it a try! (cause i'd also like to know how it performs on the GN before mine comes haha)

speedtest gives me about 50Mb dl and 10Mb ul
My internet connection is 100Mb dl/10Mb ul

OK I tried different app: Wireless File Transfer Pro.
It runs on the phone, then you open a browser on PC and select files to upload. Doesnt show data transfer rate, but I can already see it's much better (I was refreshing the folder on the phone while 650MB file was being transfered).
So at least it's not hardware. (actually Ive read that GN has same WiFi chip as SGS2).
Anyway, sounds like it's all software related.
I prefer to see data transfer rate when moving/copying and so few apps support that

so is it a good or bad thing that the nexus has the same wifi chip as the galaxy s 2?

NexusDro said:
so is it a good or bad thing that the nexus has the same wifi chip as the galaxy s 2?
Click to expand...
Click to collapse
It's a no-go. Samsung/Google should have reinvented the wheel for the GN!
Seriously: If the GN didn't have the SGS2-wifi chip, it could be a better or a worse wifi chip, so it's neither a good nor a bad thing.

I have restarted my router and then retested the same operation in the same app on both: SGS2 and GN.
SGS2 was transfering at 1.6MB/sec, while GN at 1.2MB/sec. But at the same time I have tested CPU usage while transfer was ongoing and it was 20% at 520MHz, so that's nice.
But I did find out that other apps can transfer much quicker so its not that bad. It's just far from desktop PC speeds, at least as of now. Custom ROMs/kernels might improve things.
What apps do you guys use to transfer files wirelesly onto GN over WiFi? Any benchmarking done? Talking about files minimum 400MB in size.

Retested WiFi File Transfer app trat transfers files from desktop PC via browser, was getting ~2.8MB/sec. Galaxy Nexus, same WiFi network as previous tests. CPU usage while that transfer was in progress was 700-800MHz, 40-50%.

I use es file explorer and its very fast..
Sent from my GT-I9100 using XDA App

I usually prefer SwiftFTP for filetransfer and for direct video/audio streaming via DLNA "Skifta" (https://market.android.com/details?id=com.skifta.android.app).
Don't have my Nexus yet but worked pretty well on my old Milestone 2 so far.

can more people comment on the performance of WIFI on the GN? does it regularly drop its connection? is it as fast as your previous devices? etc. thank you

spovat said:
can more people comment on the performance of WIFI on the GN? does it regularly drop its connection? is it as fast as your previous devices? etc. thank you
Click to expand...
Click to collapse
Mine doesn't drop at all. Seems to work just like SGS2 did.

The local file transfer speeds have absolutely nothing to do with your ISP's internet throughput speeds, it has everything to do with the type of your router, and the frequency you're connecting your device to.
If your router is 802.11g, the speeds will be capping in theory to 54mbps, in reality much, much lower.
If your router is 802.11n and you're connecting to 5Ghz access point, max theoretical speeds are over 300mbps when transferring files internally, again real world speeds are much slower due to interference, etc.
Also the actual flash memory in smartphones are not as speedy as solid state drives in computers so that's another bottleneck.
So firstly check the exact model of your router, google the spec sheet and start troubleshooting.

In my case the fastest speed I have seen so far was 3.2MB/sec, which is like 30Mbit. That was when uploading big file from desktop PC to my GN. This was on 2.4GHz n network with 40Mz band.

schriss said:
In my case the fastest speed I have seen so far was 3.2MB/sec, which is like 30Mbit. That was when uploading big file from desktop PC to my GN. This was on 2.4GHz n network with 40Mz band.
Click to expand...
Click to collapse
That's pretty much as high as you'll see on 2.4Ghz g network. Remember your flash storage has to keep up with all the file writing and it's far from being fast.
Safe to say you're seeing healthy transfer rates, mate.

[Q] Very slow SMB file transfers

Hello.
I'm using stock rom/kernel and testing file transfer via WiFi through smb connection (ES File Manager and CifsManager connected to a Windows share)
With both apps the maximum speed I could achieve was 0.9Mbytes/sec, this is at least 6 times slower then phone's capability, because when testing internet speed when connected to the same wifi network I get expected 5Mbytes/sec.
SD card where files are being saved has 15Mbytes/sec write speed (tested with SDCardTester app) and the computer I'm transferring files from is also not the issue, it's connected to the router via cable and I have sustain file transfer speed between two computers of 90-140Mbytes/sec.
So it seems somehow SMB connection doesn't use all the available bandwidth. Any ideas why is that and how to fix it?
Thank you.

[email protected] said:
Hello.
I'm using stock rom/kernel and testing file transfer via WiFi through smb connection (ES File Manager and CifsManager connected to a Windows share)
With both apps the maximum speed I could achieve was 0.9Mbytes/sec, this is at least 6 times slower then phone's capability, because when testing internet speed when connected to the same wifi network I get expected 5Mbytes/sec.
SD card where files are being saved has 15Mbytes/sec write speed (tested with SDCardTester app) and the computer I'm transferring files from is also not the issue, it's connected to the router via cable and I have sustain file transfer speed between two computers of 90-140Mbytes/sec.
So it seems somehow SMB connection doesn't use all the available bandwidth. Any ideas why is that and how to fix it?
Thank you.
Click to expand...
Click to collapse
I'd suggest trying FX File Explorer (https://play.google.com/store/apps/details?id=nextapp.fx). Gives me better SMB transfer rates than other apps I've tried.

Too bad it's not free when it comes to networking.
Since two different apps I've mentioned giving me exactly the same results, I kind of suspect it's not related to the app, but rather to the system...I know CifsManager is highly depend on the kernel and ES File Manager also doesn't work if certain features not enabled in the kernel.

Do Wifi Tether apps differ in Speeds?

I think I know the answer to this but just wanted to ask around and gather opinions. I tether the connection from my S3 to my N7 quite a lot and there are times when I see variation in data transfer speeds while doing stuff that does not need internet. For e.g.: the other day I was uploading a file from my N7 to my S3 using an FTP server running on my S3. This did not involve Internet since it was a device to device transfer. The devices were placed at the same spot all the time. What I noticed what that there were instances where the transfer speed dropped to under 100 KBps.
Sometimes the speed was in the upwards of 3000+ KB/s and would stick there for quite some time before dropping back. I was using an FTP client which was reporting the transfer rate.
Hence the question, is there anything like one tethering up is better than the other in terms of speed or do they all use the underlying infrastructure and have no control the speed what so ever?
Also, does anyone know of an app or a widget that reports the transfer rate of a tethered connection?
Thanks.

psychedelicNerd said:
I think I know the answer to this but just wanted to ask around and gather opinions. I tether the connection from my S3 to my N7 quite a lot and there are times when I see variation in data transfer speeds while doing stuff that does not need internet. For e.g.: the other day I was uploading a file from my N7 to my S3 using an FTP server running on my S3. This did not involve Internet since it was a device to device transfer. The devices were placed at the same spot all the time. What I noticed what that there were instances where the transfer speed dropped to under 100 KBps.
Sometimes the speed was in the upwards of 3000+ KB/s and would stick there for quite some time before dropping back. I was using an FTP client which was reporting the transfer rate.
Hence the question, is there anything like one tethering up is better than the other in terms of speed or do they all use the underlying infrastructure and have no control the speed what so ever?
Also, does anyone know of an app or a widget that reports the transfer rate of a tethered connection?
Thanks.
Click to expand...
Click to collapse
I guess Tethering apps wont limit speed!

strange FTP speeds

so i installed an FTP server on the stick to take a backup of it.
when i upload files to the stick they go really fast. over 1 MB/s
when i download files from the stick to PC they go over 1 MB/s for a few seconds, and then drop to like 50 KB/s.
any idea what could be slowing down download speeds from the stick to PC over local wifi using ftp?

Sounds at first like traffic shaping or something similiar. That means that most of the bandwith is reserved for downloading to the Stick. Probably this is done to assure a more stable video streaming since all background apps are throttled in the upload speed. But that is just an assumption that FireOS provides traffic shaping, there might be also other issues like bad WIFI connection or WIFI channel interferences between multiple APs and so on.

i think you are correct.
either the hardware of the stick can not upload at a fast speed or the software limits it from doing so

The hardware should do the upload at a faster rate as you can see a higher rate when starting uploading until softwarebased the upload speed is throttled. I don´t know if its possible to configure this in a way but I assume this could be probably done via build.prop or settings database editing but this would need root which isn´t available for the stick (except the complicated hardware root method) so you´re still stuck with the slow speed.

Slow wifi file transfer

Hi,
I do all my downloading via LTE as I'm on an unlimited data plan and my connection speed is considerably higher than my fixed line internet but when I'm transferring the files to my pc via wifi, it seems abnormally slow. My files download at around 34MB/s (megabytes per second) but when I transfer them to my PC via wifi using cx file explorer (have also tried ES pro) I'm getting around 15MB/s. I'm using 5ghz AC wifi and the link speed in my phones wifi settings is 866mbps. Transferring the same files from my laptop to my PC via wifi is much faster at above 60MB/s.
Does anyone know what's going on here or have any ideas to figure it out?
Also, when transferring files via usb to the nvme drive in my laptop I'm getting 100MB/s, does this sound right? Was kinda expecting more from ufs 3.0.
(My usb cable is 3.1 gen2 10gbps)
Is something wrong here or am I just expecting too much from my phone? Any input will be very much appreciated.

MrMoo232 said:
Hi,
I do all my downloading via LTE as I'm on an unlimited data plan and my connection speed is considerably higher than my fixed line internet but when I'm transferring the files to my pc via wifi, it seems abnormally slow. My files download at around 34MB/s (megabytes per second) but when I transfer them to my PC via wifi using cx file explorer (have also tried ES pro) I'm getting around 15MB/s. I'm using 5ghz AC wifi and the link speed in my phones wifi settings is 866mbps. Transferring the same files from my laptop to my PC via wifi is much faster at above 60MB/s.
Does anyone know what's going on here or have any ideas to figure it out?
Also, when transferring files via usb to the nvme drive in my laptop I'm getting 100MB/s, does this sound right? Was kinda expecting more from ufs 3.0.
(My usb cable is 3.1 gen2 10gbps)
Is something wrong here or am I just expecting too much from my phone? Any input will be very much appreciated.
Click to expand...
Click to collapse
Check to make sure that you aren't coming into any issues with wifi signal disruptions. Make sure your router is configured correctly.
Something's to try:
Choose a less congested wifi channel
Make sure you are using AES encryption
Select 40mhz or 80mhz channel bandwidth
Relocate the router to a different area
Restart the router
There is a lot of info on transfer speeds and etc, but suffice it to say a bunch of things come into play. If your running stock firmware then try getting a reliable class 10 microsd card for best read/write speeds. Keep in mind that microsd cards are rated for a max speed of up to X number (in mb/s). Sequential read/write, random read/write speeds will vary in speed.
MicroSD Cards write/read in megabytes per second, which is not the same as megabits per second of your wifi router (or USB 3.1 gigabits per second) speed. Internal storage is faster then microsd, I don't have the specs Infront of me right this second so I can't tell you by how much.
Also your wifi router does not give dedicated speeds per device, it has a set amount of speed that is shared amongst connected devices. More wifi devices connected transmitting/recieving data will cause speeds to decrease. Also the Wifi speed your seeing on the phone doesn't include any overhead from the router (or overheard from SMB/CIFS, etc), so your true speed may vary.
Try the router adjustments and see if that helps. If not then you may just have to live with what your getting speed wise for wifi transfers to/from PC.
* I will do some transfer tests with my wifi today and tomorrow to add more info on transfer speeds/setup. I am expecting a new wifi 6 capable router tomorrow, so I will post results of both of my routers after I get that set up...
**Some test results -
Background:
PC configuration - Windows 10 PC with 65 gigs of ram, Sata HDD, Gigabit Lan connection
Phone Configuration - Android 10, MicroSD Samsung Class 10 EVO microSD Memory Card 32GB
SMB file transfer
First set of read/write is done with my current router. I am connected via 802.11 5Ghz A/N/AC with a manually selected 157 channel using AES encryption. I made 3 attempts with the same file and the stats provided are average speed measurements. Like yourself my phone was indicating the WiFi speed was 866 mbps during the transfer.
Transfer of 695mb file - From PC to MicroSD Storage
21.35 MB/s
23.58 MB/s
22.68 MB/s
Transfer of 695mb file - From MicroSD Storage to PC
20.31 MB/s
21.93 MB/s
20.90 MB/s
Transfer of 695mb file - From PC to Internal Storage
22.80 MB/s
22.91 MB/s
24.93 MB/s
Transfer of 695mb file - From Internal Storage to PC
23.28 MB/s
23.61 MB/s
23.32 MB/s

scottusa2008 said:
Check to make sure that you aren't coming into any issues with wifi signal disruptions. Make sure your router is configured correctly.
Something's to try:
Choose a less congested wifi channel
Make sure you are using AES encryption
Select 40mhz or 80mhz channel bandwidth
Relocate the router to a different area
Restart the router
There is a lot of info on transfer speeds and etc, but suffice it to say a bunch of things come into play. If your running stock firmware then try getting a reliable class 10 microsd card for best read/write speeds. Keep in mind that microsd cards are rated for a max speed of up to X number (in mb/s). Sequential read/write, random read/write speeds will vary in speed.
MicroSD Cards write/read in megabytes per second, which is not the same as megabits per second of your wifi router (or USB 3.1 gigabits per second) speed. Internal storage is faster then microsd, I don't have the specs Infront of me right this second so I can't tell you by how much.
Also your wifi router does not give dedicated speeds per device, it has a set amount of speed that is shared amongst connected devices. More wifi devices connected transmitting/recieving data will cause speeds to decrease. Also the Wifi speed your seeing on the phone doesn't include any overhead from the router (or overheard from SMB/CIFS, etc), so your true speed may vary.
Try the router adjustments and see if that helps. If not then you may just have to live with what your getting speed wise for wifi transfers to/from PC.
* I will do some transfer tests with my wifi today and tomorrow to add more info on transfer speeds/setup. I am expecting a new wifi 6 capable router tomorrow, so I will post results of both of my routers after I get that set up...
Click to expand...
Click to collapse
Thanks for the reply,
My 5ghz wifi is running on 80mhz bandwidth, I've used inssider to check for other networks and there are none in my area running at 5ghz. My router is located in a space behind the sofa so I'm basically sat on top of it.
I recently installed the ASUSwrt-merlin firmware on my router (as well as the required full factory reset after the installation) but I've been experiencing the slow transfer speeds before and after installing that firmware. I have also tried putting my phone at the top of the QOS list in the router settings as well as turning QOS off completely.
I'm not using an SD card, all my files are being transferred from internal storage. I understand the difference between megabytes per second (MB/s) and megabits per second (mbps), USB 3.1 rev 2 is 10gbps, therefore has a throughput of 1250MB/s, obviously, you won't get that exact speed in the real world but you can expect a throughput of around 1GB/s providing both devices can handle that speed as well as the cable. I have done a storage speed test on my phone and the sequential read is over 1500MB/s and the write is over 500MB/s, well over what I'm actually getting over USB. I can deal with the USB speeds I'm getting, although it's slower than I expected (about 100MB/s), its fast enough for now.
If you could post the speeds you're getting, that would be great, If you're getting similar speeds then I know I'm just expecting too much from a mobile device (maybe Samsungs wifi module just isn't as powerful as a laptop one?). If not then I know I've got a bottleneck somewhere that needs fixing.
Thanks again for your input
EDIT: I have just read your edited post. Thanks for the thorough speed test, I guess I'm just expecting too much from my phone in comparison to my laptop.

MrMoo232 said:
Hi,
I do all my downloading via LTE as I'm on an unlimited data plan and my connection speed is considerably higher than my fixed line internet but when I'm transferring the files to my pc via wifi, it seems abnormally slow. My files download at around 34MB/s (megabytes per second) but when I transfer them to my PC via wifi using cx file explorer (have also tried ES pro) I'm getting around 15MB/s. I'm using 5ghz AC wifi and the link speed in my phones wifi settings is 866mbps. Transferring the same files from my laptop to my PC via wifi is much faster at above 60MB/s.
Does anyone know what's going on here or have any ideas to figure it out?
Also, when transferring files via usb to the nvme drive in my laptop I'm getting 100MB/s, does this sound right? Was kinda expecting more from ufs 3.0.
(My usb cable is 3.1 gen2 10gbps)
Is something wrong here or am I just expecting too much from my phone? Any input will be very much appreciated.
Click to expand...
Click to collapse
I use wifi direct instead of es pro, es pro transfers much slower for me for some weird reason, Maybe it's something to do with the es or cx apps, have you tried wifi direct? I'll try cx file explorer a little later and post my speeds as well.
Edit: ok, cx file explorer took 20 minutes and 8 seconds to transfer a 918 MB file, a direct usb c 3.1 connection to my same laptop took 25 seconds for the same 918 MB file and wifi direct took about 45 seconds for the same 918 MB file. Sorry I dont have the speeds but it looks like it's something to do with the apps. Also have you tried using a cloud storage for transfers like dropbox or onedrive? It's may be faster.
Edit Edit: I also read that the usb cable that comes with the note 10+ only uses usb 2.0 speeds which is what I used.
Sent from my Samsung Galaxy Note 10+ using XDA Labs

If you want to transfer files from your Samsung Galaxy Note 10+ to pc via wifi fast, try Samsung mobile manager tool. With its help, you can easily access to all data on your Samsung Galaxy Note 10+ and transfer them to pc quickly via usb cable or wifi connecting. It's easy, fast and safe.