Develop Bugs

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?

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] Speed up Bluetooth transfer rate?

I was sending a movie to my phone and figured instead of plugging it in I would just pair it with my laptop. So I did and got 14-50kb/s. It had an estimated finish time of 400-800 minutes transferring 1.25g of data. What am I doing wrong or is bluetooth a whole lot suckier than I was lead to believe?

unrefine said:
I was sending a movie to my phone and figured instead of plugging it in I would just pair it with my laptop. So I did and got 14-50kb/s. It had an estimated finish time of 400-800 minutes transferring 1.25g of data. What am I doing wrong or is bluetooth a whole lot suckier than I was lead to believe?
Click to expand...
Click to collapse
The Galaxy Nexus should be capable of ~24Mbps over Bluetooth, however, that's also dependent on the Bluetooth module in your laptop. Also, Bluetooth is a wireless technology using the 2.4GHz band (like just about everything, including WiFi) meaning that other wireless devices/networks/etc can interfere with data transfer. Even the oldest Bluetooth standard should be able to transfer data at up to 700Kbps. Still, lots of other bottlenecks can get in the way. Keep in mind that the 24Mbps speed is only possible with full Bluetooth 3.0 devices which actually use 802.11 WiFi for data transfer. Bluetooth devices that don't use this standard have a max transfer rate of 2.1Mbps with Bluetooth 2.0 and 2.1. My suggestion is to stick to transferring files over USB.

I wouldn't xfer too large of files over BT. As the poster above said, there's a lot of bottlenecks that slow it down. Just not fast enough.
For example when I Bluetooth internet tether to my MacBook Pro, I can maybe pull 2mbps down/up, whereas when I WiFi tether, I can do the full 8-10mbps down / 3-4mbps up.

MMS not working after 8.1.2 patch
please delete

if your laptop and phone is on the same wifi, you can use wifi file transfer, airdroid or similar apps to transfer files. its much faster. (i see 5-6mb/s)
i have an old laptop and max i saw is like 90kb/s with blutooth.

[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.

[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.