Copy from Wifi-Network to MemoryCard very Slow - P3300, MDA Compact III General

Copy from Wifi-Network to MemoryCard very Slow - P3300, MDA Compact III General

Hello,
when i transfer a 600 Mb File from my PC to the Memorycard i have a speed from 30 - 40 Kb/s its very slow.....
how is the problem with the connection?
Hardware - O2 Orbit with a 2 Gb Scandisc Card... and Resco Explorer...

O2 Orbit, 2gb Sandisk and vxFTPSrv (Orbit is FTP server, PC uploads) gets me 300kb/s over Wifi. Overclocked to 250MHz it speeds up till 400kb/s.
>kq

Related

Wireless LAN cap?

Hi,
I just did a speedtest on dslreports.com with my D810 connected to internet via Wifi. My cable connection has a speed cad at 6M, however, my avareage speed on my D810 was only 1500kbs while my desktop has over 5000kbs. So it leads me to a question that if there is a cap limit the internet speed on the Wifi connection?
Thanks.

like that benchmarks show that our pda's cant keep up with the fastest
SD cards one can get because the sd interface in the devices are not fast enough
it's only nautral to asume the same goes for the bus the wifi chip is connected to
of cause if benchmarks for pure wifi file transfer are much faster
and other browsers give better results it could be ie which is poorly written
if all browsers give that result it could be the tcp protocol which is the culpit

By default - your Trinity won't connect at 802.11g at the battery saving configuration. Try the performance setting instead that would otherwise give you more speed but less battery power.

ww2250-I have already tried the performance setting but it still gave me the same result..

SD(HC) Tweaks (oh, and wifi too)

Do any tweaks need to be performed on the tp2 for SD xfer speed? I saw the tune-up cab posted on this thread (http://forum.xda-developers.com/showthread.php?t=446366) and was just wondering if it would apply to our phones as well.
Also.. Whats the highest xfer you get over wifi (SMB).. One large(ish) file.. I can only get about 530KB (kilobytes, not bits)... Signal strength is excellent. Laptop is connected via dual-band wireless-n. The average 802.11g client gets about 3.0MBps on my network. The wifi signal strength on my phone doesn't seem to impact the transfer speed (greatly).. meaning.. there is no flux between 5 bars and 3 bars. Doesn't that indicate an internal bottleneck? What bus does this wifi card 'ride'? PCI or usb?
DOH.. should've made a separate thread.

530KB (kilobytes, not bits) equal 4240Kb (kilobits) which is close to 4Mbps.

Once you figure out your bits/bytes come back and edit your post.
If you're getting 3mbit on 802.11g then something is wrong with your wireless, period. For a duplex connection (ie: one radio does send/receive) you'll get about 24mbit max. I get 22-23mibt typically on my wireless laptop to my access point here at the house. I haven't bothered to test the Tilt 2's wifi however.

I don't think I mixed anything up.
G notebook clients get about 3MBps or 24Mbps on my network.. N client to gigabit wired server (router is 610N, gigabit eth ports) gets 11MBps (I think)..
My touch pro2 comes around and gets 4 megabits or ~.5 megabytes/sec.. How does that happen? Probably for the same reason my zune 8gb (flash) gets those speeds. So what is that reason?
Wheres the bottleneck? Wifi antenna? Comm bus between wifi chip and phone storage? What do our wireless cards look like anyways? Perhaps there is one antenna. That wouldn't surprise me..
Regarding the SD isssue: I selected to mount the phone as a usb device instead of active sync.. I got about 3 MBps write. I think I need to get a Class 6 card.

Enabling wifi to stay on during standby and then putting it into standby actually sped things up... Anything remotely proc intensive tends to smack the wifi transfer around a bit. Its not really an issue of SD card access. But then again, the SD card access could be impacted by processor usage and in turn slow down the wifi.
There are a handful of settings in the wifi reg key BCMSDDHD1 that start with SD... Why? I need to fire up the dd-wrt router and see if this actually connecting at 54g.
btw: speed up was from ~430KBps to 600KBps.

I also have this problem with slow wifi connection and wonder if there iare any bottleneck.
I understand what you mean but people probably will get confused when you write about 5 megabytes/sec speed for tp2, dont you mean 5 megabits/sec?

Just picked up this tab from bestbuy to upgrade my Nexus 7 2013. Rooted and flashed CM11, tried Snapshot and nightly. Everything is great except.
Network performance on my NAS. With stock samsung rom I could upload a file at 10 MBPS, on a 5GHZ AC router.
Now CM11 nightly or snapshot I can't send files at all on the 5GHZ AC connection (433 Mbps linkspeed) it starts sending the file and loses connection and times out.
If i connect with the 2.4 GHZ Wireless N speed (72 Mbps link speed) the connection is more stable, most of the time the entire file will transfer without a time out, but at 3 mbps speed only.
This is using ES File explorer. My PC for comparison (wireless AC, 866 mbps link speed) transfers files on the same NAS at 16 mbps with no drop outs. It's also located about 20 yards away vs 2 yards for the tablet.
Internet connection/wifi connection does not drop out, I can use youtube and torrents and download at my capped internet speed (18 mbps) without issue. But as soon as I try to use LOCAL LAN, performance falls off a cliff. Signal strength is always Excellent.
Disapointing, because my Nexus 7 (wireless N) had a reliable connection to NAS, but only uploaded at 6mbps, I was initially excited to see this tablet performing at 10 mbps in stock samsung rom. I do like to grab the tablet and download a tv show and then shoot it to my NAS for local playback on a TV. 3 mbps transfer speed makes this a bit cumbersome a bit slow when transfering 4gb file for example.
Any decent alternative's to ES file explorer? I have had zero luck finding a good Network LAN file manager.

So I did some more testing.
Flashed back to Debloated stock rom and ran test.. was able to use the 5GHZ Band at AC speeds (433 mbps link speed) and upload to the NAS at 9-10 MBPS (70-80 Megabit). File transfer was smooth and uninterrupted.
Flash back to CM11 nightly, snapshot, or sabor and problem returns.
File starts transferring at 1 MBPS, and quickly ramps up to 7 MBPS and then just stops dead and times out. It feels like it's a software issue with a buffer or something. It's like a buffer fills up and can't keep up anymore. It only happends at sustained high speed transfers on LAN.
my Max internet connection is 18 Mbps (1.5 MBPS) so this issue never crops up on youtube/internet/gaming etc.
Has anyone else tested high speed (70+ Mbps) uploading over LAN wifi?

looks like this is something for CM11 developers to fix... I assume you reported it to them already?

The only way I get decent performance to and from my NAS is via FTP and not smb. FTP gives me up to 12mbytes/s whereas smb gives me 7 at best.

[Q][SM-T800] Unable to get high bandwidth on LAN with 802.11ac

Hi,
I'm trying to get full speed of my Airport Extreme 802.11ac on my Galaxy Tab S 10.5". But, no matter what ROM I use, my bandwidth caps at 8 MB/s when I transfer a file from my local NAS using ES File explorer, whereas my Macbook or my iPhone transfers at 40 MB/s at least.
I've checked that my wifi connection is synced at 5 GHz. Link speed is great, minimum at 700 Mbps. I can't post a screenshot because i'm a new user
Does anybody can help me ?
EDIT : the problem faces only with ES File Explorer. With AirDroid, I got 20 MB/s. It's still half from what I can get with an iPad, but there's improvements.

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.

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