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Ok, so it looks like I was bored, and so far I haven't seen anybody else try this so why not, right?
As the owner of a Sierra Wireless AirCard 860 (UMTS/HSDPA) and an HTC TyTN (UMTS/HSDPA), I figured I could be the first to compare different types of PC data connections.
Anecdotally, it seemed like the TyTN USB-tethered connection was roughly the same speed as the direct PC-Card connection, and the TyTN tethered over Bluetooth definitely seemed slower, but it was time to confirm.
For all tests, I used Cingular's ISP.CINGULAR APN, and I logged in as [email protected]. There was no proxy server used at all. Also, I disabled all apps on my PC that might try and hijack the data connection and disconnected WiFi and wired ethernet connections before getting started.
For my benchmark, I ran the 600k test from DSLReports.com
Finally, all tests were run within a 45-minute period at my home office desk in the Boston area (I had a good 3G connection for all tests).
So the results:
Siera Aircard 860
11:25pm 634 kbs
11:26pm 559 kbs
11:27pm 651 kbs
11:28pm 737 kbs
11:29pm 646 kbs
-----------------
Avg: 645 kbs
HTC TyTN (USB Tether)
11:41pm 585 kbs
11:42pm 737 kbs
11:43pm 748 kbs
11:44pm 648 kbs
11:45pm 520 kbs
-----------------
Avg: 648 kbs
HTC TyTN (Bluetooth 1.2 Tether)
12:06am 307 kbs
12:08am 296 kbs
12:09am 312 kbs
12:10am 275 kbs
12:11am 308 kbs
-----------------
Avg: 300 kbs
So what did I learn from all this? Statistically, there was no difference in speed between the PC-Card and the Tethered USB connections. Also, as expected, the Bluetooth connection was significantly slower.
Other conclusion: I really can't justify keeping the PC-Card 3G plan anymore! I'll be giving up simultaneous Internet-on-PC and phone connectivity, but at a $59.99/mo savings? I think it's worth it!
What about using a Bluetooth 2.0 adapter on the PC?
I didn't have a BT 2.0 card to test with, but I doubt it will make any difference -- the TyTN doesn't support EDR...
I should also note that I've seen significantly higher speeds than reported in the test, but this is pretty indicative of how the different configurations behave.
I've cancelled my data card plan effective 9/25. If somebody wants to lend me a card between now and then, I'm happy to try it...
The standard one goes up to 920kb/sec only
I need a modified HTC USB Modem Driver that supports full Rev A capacity speeds, I am capped by the maximum baud rate of the modem driver. ICS app is very unreliable and disconnects me too much. I Much prefer the modem. ICS app does get full rev a speeds, wmodem.exe does not - this is due to the driver only allowing a maximum speed of 900kbits/sec under baud rate in vista/xp settings
has anyone got a work around ? I tried opening the inf file to see if I could edit it, but to no avail.
thanks
I've noticed the following problem:
When trying to download (file copy/video play) from my LAN to the HD, download speeds maximum is about 340 kbps (LOL...that's like EDGE) . With the same setup (wireless "G" router) I can download on the HD from internet with speeds 2 000+ kbps. LAN operations between my PCs/laptops are @ 60 000 kbps wired and 20 000 kbps wireless (using the same setup). To access my LAN from the HD I'm using Resco Explorer....and at that 340 kbps speed it's not possible to watch movies from my LAN. No such problem with my other PDA (iPAQ HX4700) which is not even "G" but "B" device - speed is about 3 000 kbps. Can anyone confirm this and suggest a solution? Can anyone watch movies from LAN encoded with more than 400 kbps?
p.s.: Speeds are measured using DU Meter (for PC)
p.s. 2: Same low (340 kbps) speed with another wireless router
kokopipi said:
I've noticed the following problem:
When trying to download (file copy/video play) from my LAN to the HD, download speeds maximum is about 340 kbps (LOL...that's like EDGE) . With the same setup (wireless "G" router) I can download on the HD from internet with speeds 2 000+ kbps. LAN operations between my PCs/laptops are @ 60 000 kbps wired and 20 000 kbps wireless (using the same setup). To access my LAN from the HD I'm using Resco Explorer....and at that 340 kbps speed it's not possible to watch movies from my LAN. No such problem with my other PDA (iPAQ HX4700) which is not even "G" but "B" device - speed is about 3 000 kbps. Can anyone confirm this and suggest a solution? Can anyone watch movies from LAN encoded with more than 400 kbps?
p.s.: Speeds are measured using DU Meter (for PC)
p.s. 2: Same low (340 kbps) speed with another wireless router
Click to expand...
Click to collapse
if you are using the default memory card that came with the phone, it is only a class 2. the write speed isn't spectacular, this may not be the reason. but it's the only variable i see right now. since your can download stuff to your phone from web at good speeds. i think it's more of a problem with the machine that is "uploading" or hosting the video. check the upload speed of that machine.
I think the memory has nothing to do with the problem. And I've tried with different host machines - the same result.
Slow network speed through WIFI
I have to same problems on my HD. I am using a home server at home which holds all of my videos. When connecting to it and watching a video with my old Eten X800 everything works fine and runs smoothly. But doing the same on my HD results in an unwatchable video. If I copy and paste this video on my mem card on the HD the video runs smoothly. There are some strange things going on with the WIFI speeds on the HD
Anyone worth investigating this issue?
Yeah... the strange thing is LAN speed is much lower than Internet speed using same network equipment
do better help me to help you, can you give me the numbers again in the follow format (some of them were missing from your original post)
Internet->Host:
Host->Internet (may not be relevant, but give it anyway):
Internet->HD:
HD->Internet:
Host->HD:
HD->Host:
arrows indicating direction of the traffic (ie. downloading or upload).
buggybug0 said:
do better help me to help you, can you give me the numbers again in the follow format (some of them were missing from your original post)
Internet->Host:
Host->Internet (may not be relevant, but give it anyway):
Internet->HD:
HD->Internet:
Host->HD:
HD->Host:
arrows indicating direction of the traffic (ie. downloading or upload).
Click to expand...
Click to collapse
Internet->Host: 7825 kbps (currently)
Host->Internet (may not be relevant, but give it anyway): 506 kbps
Internet->HD: 1560 kbps (currently)
HD->Internet: can't measure
Host->HD: 340 kbps
HD->Host: 340kbps
Also
Host->another PC 60 000 kbps (wired)
another PC->Host 60 000 kbps (wired)
Host->Laptop 20 000 kbps (wireless)
Laptop->Host 20 000 kbps (wireless)
The Host could be PC/another PC/Laptop - the results concerning the HD are identical, which means the problem is not from the Host nor the network setup.
Did you check the power saving settings in the WiFi parameters ?
Coude said:
Did you check the power saving settings in the WiFi parameters ?
Click to expand...
Click to collapse
YEAH!
it could be toggled/switched on "better performance" for better speed and "best performance" for g protocol. But the device will be hotter!
Coude said:
Did you check the power saving settings in the WiFi parameters ?
Click to expand...
Click to collapse
These settings affect both Internet and LAN performances but Internet speed is OK and LAN speed is slow. And yes, I did play with the settings - results are the same. (because I'm 2-3 meters away from the wireless router). I'll be glad if someone with HD, actually tests a connection between his HD and a PC in a LAN and not just giving "blind" suggestions. What I want to know is if it's a problem with all HDs or just my device is faulty.
kokopipi said:
Internet->Host: 7825 kbps (currently)
Host->Internet (may not be relevant, but give it anyway): 506 kbps
Internet->HD: 1560 kbps (currently)
HD->Internet: can't measure
Host->HD: 340 kbps
HD->Host: 340kbps
Click to expand...
Click to collapse
the nerd in me just want to go to your house and troubleshoot this for you in person. LOL... anyway...
what is the file you used to test in each case? the reason i'm asking is that some files are more compressed than others, and the speed we see is the NOT the raw speed -- the capability of the wifi card. but the combined speed of the CPU processing power and the network speed.
long story short, if you are downloading, the data is broken up and transfered piece by piece -- a movie is broken up and transfered bit by bit. depending on the file, the receiver side needs to process these bits and recombine them back together. it's much easyer to recombine a webpage, text file or equivalent. but mp3s, rar/zip or movies are already compressed/encoded with special algorithm, so the receiver processor needs to chew through these data to recombine them, so it won't accept faster than it can "chew".
of course this may not be the reason for your problem at all, but try transferring a large text file (copy and paste text from a website to notepad and c+p over and over, till you have a ~ 10MB txt file).
Even on copy files (not trying to play them, hence no decompression) just copy from PC to HD, no matter what the file type is, the speed is that - 340 kbps. Why don't you just try it yourself?
Take a look at his article: http://pocketnow.com/index.php?a=portal_detail&t=news&id=6440
tnyynt said:
Take a look at his article: http://pocketnow.com/index.php?a=portal_detail&t=news&id=6440
Click to expand...
Click to collapse
Does it really improve speed? I find WIFI a bit slower with the yweak installed.
kokopipi said:
Even on copy files (not trying to play them, hence no decompression) just copy from PC to HD, no matter what the file type is, the speed is that - 340 kbps. Why don't you just try it yourself?
Click to expand...
Click to collapse
With my HD the same slow speeds. Tried several different hardware. Only HD is slow as hell. WIFI speed tweak does'nt do much, btw.
Some speed results:
WIFI Setting Best Battery / Resco Explorer 7.05: 45 KB/s
WIFI Setting Best Performance / Resco Explorer 7.05: 300 KB/s
WIFI Setting Best Performance / Total Commander/CE v2.51: 600 KB/s
So Resco does not work well with local shares. won't be using that anymore when c/p'ing. Altough speeds are doubling with TC it still is'nt fast imho.
Noone else tried this and encountered the same problem?
Ever find a fix for this?
I noticed the exact same problem last night when trying to play some TV shows over Wi-Fi from my PC. The file played OK for a couple seconds, then stalled
Using "Network Plugin for File Explorer" from HTC, I get an ave. speed of ±340kbps. The speed is the same whether I save to memery MC or phone memory. So the write speed of the MC has no bearing on the problem.
PS. Just tried on my work network with the same results...
Lucky you guys... I at best performance get ~120kb transfer and at optimal I get ~80kb transfer (copy) with Resco on wrt54gl with ddwrt on it
there are some members reporting that hd2 can't reach over 65 mb/sec transfere speed due to hardware limitations in it's antenna , can any body confirm this
mms pics & vidoes size
Does anyone have a fix for the mms message that come in to the phone they all come in small the screen is so large and the images are small in the middle
DwTelecom said:
Does anyone have a fix for the mms message that come in to the phone they all come in small the screen is so large and the images are small in the middle
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Click to collapse
not related to the thread , post it in any place , not here
Hi All there!
Sorry for my English. I'm from Russia.
I try to get WiFi-.11n speed on my HD2 (not T-Mobile, but oficial Russian) connecting it to my D-Link DIR-825 WiFi-.11n router. (of course WiFi-.11n is turned on by doing HKLM/Comm/BCMSDDHD1/Parms 11nModeDisable = Change from 1 to 0 registry tweak)
1) When I setup my router to G-mode only, I see both transfer and receive speeds alike 54 megabits_per_sec in properties of WiFi connection on my HD2.
In this case I have real data transfer speed between HD2 and sheared folder on my PC about 1 megabyte_per_sec (as shown by RescoExplorer). It seems to me is's normal speed, because: 54/(~2) = 24 (real link speed). 24/8 = 3 megabytes_per_sec max data transfer speed. My "little" speed-leaks in this case does not metter for me now .
2) When I setup my router to N-mode only, I see both transfer and receive speeds alike Auto in properties of WiFi connection on my HD2. Infrequently receive speed become only 11 megabits_per_sec. But it does not metter, because in this case I have the same real data transfer speed between HD2 and sheared folder on my PC as on G-speed.
It seemed to me that in this case th speed must be much higher. To my mind... If link speed on WiFi-.11n is about 150 megabits_per_sec for 2,4 GHz. Then real link speed must be about 80 megabits_per_sec. And due this higher speed, the real data transfer speed between HD2 and sheared folder on my PC must be about 3-8 megabytes_per_sec or higher.
Here are my questions: Especially want hoss_n2's answers, because it seems to me that he uses WiFi-.11n real speed on HD2.
- Am I wrong in my reasoning? What are my mistakes?
- How can I get real WiFi-.11n link and data transfer speed whith my equipment?
- Does anybody have real WiFi-.11n data transfer speed? Is it possible? I mean real data transfer speed between HD2 and sheared folder on PC higher then 3-5 (my be 8-10-20 ) megabytes_per_sec and ransfer and receive speeds shown in properties of WiFi connection on HD2 higher then 54 megabits_per_sec.
- Does anybody link HD2 in WiFi-.11N network using 5 GHz (not 2,4 GHz)? Is it possible?
- What firmwere do you use to reach real WiFi-.11N speed? Official?
хP.S. Don't ask me what for I need so high data transfer speed on my HD2, please.
Thank you for your answers.
Is it just me or are WiFi speeds on these tablets very slow? If anyone know Of a fix it would be appreciated.
Sent from my Nexus 7 using xda premium
I've seen other posts where people have found a small gap in the shell resulting in poor contact inside for the wifi leads. Some were able to squeeze the shell tighter to help and some opened the back and tried to carefully adjust the pins to make better contact. At least one person broke a contact pin, so be careful if you try that. My wi-fi connection and speeds are very good.
I can download a 100 Mb file in less than a minute, and web pages take less that 3 second to load.
Though, I have a 30 Mb/s connection from Charter that I can constantly get up to 45 for some reason.
Last night I transferred GBytes of data via ADB (i did a full tablet wipe and a bunch of restores) and couldn't help but notice that sustained data transfer via (wired) ADB is only about 1.4 Mbytes/sec. Sort of pathetic waiting around for a half-hour to transfer a 2.5 GB file.
Anyway, not to jack the OP (which is about WiFi), but I wanted to try and figure out what my best options are for high-speed backup (I have a 32 GB N7!) - including WiFi as an option.
Ran a couple of file transfer trials this morning using a ROM file that was 150,137,068 bytes.
Results first, more detail on each setup follows. (The results are compared in terms of data payload per second; in the cases where protocol overhead is high, the wire-speeds would be higher than calculated)
[1] SMB/CIFS write via WiFi : 518sec => 2.32 Mbits/sec. UGH (best of three trials)
[2] FTP put via WiFi : 109sec => 11.06 Mbits/sec
[3] FTP get via WiFi : 121sec => 9.9 Mbits/sec
[4] adb pull via USB : 78sec => 15.4 Mbits/sec
[5] adb push via USB : 117sec => 10.3 Mbits/sec
[6]* OTG VFAT write via USB: 33sec => 36.4 Mbits/sec
[7]* MTP copy via USB 13sec => 92.4 Mbits/sec
In the WiFi cases:
- Linksys WRT54G (802.11g) router circa 2006 [ 802.11g theoretical bw 54 Mbps ] 6' away -35 dBm signal
- SMB/CIFS "server" Windows Xp SP3 laptop on 100 Mbps Ethernet segment attached to router
- N7 SMB client app ES File Manager
- FTP Server app (Andreas Liebig) on N7
- FTP client app Windows Xp default ftp app for both push and pull
- Windows box on Ethernet, N7 only on WiFi.
In the OTG case:
- 8 GB Sandisk Class 2 microSD card on a card reader attached to OTG cable; single partition, empty card, VFAT formatting.
In the ADB case:
- adb v 1.0.31, Win 7 Pro x64, Quad-Core i5, USB 2.0
Observing the WinXp task manager performance tab during CIFS or FTP transfers, the wired (Ethernet) link would show a high degree of variability, oscillating between 5 Mbps to 15 Mbps instantaneous rates. Hard to say whether this is a router performance issue or something else (11 Mbits/sec approaches 1000 pkts/sec at a MTU of 1500 bytes).
* The numbers for the OTG and MTP transfer tests are possibly questionable as the role of file caching is unknown - the times given here are only the times that the file transfer dialog(s) remain on-screen. (The writes could be completing in the background out of cache with nothing showing on the screen) In particular, note that the OTG copy involved a "Class 2" microSD card - and yet the write speed seemed closer to 4.5 Mbytes/sec, rather than 2 Mbytes/sec
The SMB/CIFS transfer times are quite pathetic; but as with all performance measurements, any participant in the test could be the long pole in the tent. For instance, the issue might be the ES File Manager app. I did not test with a N7 CIFS-capable kernel.
Also, it would also appear that performance of ADB for file transfers are quite poor - well, in comparison to MTP anyway. Too bad MTP doesn't preserve file timestamps (as well as all sorts of other oddities).
Apologies in advance for using file transfer as a network benchmarking method - my connection to the outside world (DSL) peaks at only 3.8 Mbits/second, so I would need to set up some kind of LAN server to benchmark network performance in absence of flash-memory or hard-drive writes.
Anybody have any performance numbers to share for:
- OTG mounts of hard drives or SSD devices with NTFS or ext4 file systems
- CIFS/SMB network mounts with CIFS-capable kernels
- WiFi speed tests when remote server is via FiOS or U-Verse fiber connection?
========================================================================
[Edit] -- Added some network-only test results.
FWIW, I ran a couple of tests using the "netcat" tool to evaluate the same setup without writing files to mass storage devices. It turned out that a terminal emulator app that I have has a busybox with netcat built in, so I booted the WinXp laptop into a Ubuntu Live CD (10.04LTS), and ran netcat TCP write tests in both directions. I also used "iptraf" to look at peak bit rates.
Result? Peak observed speeds were about 16.6 Mbits/second, and sustained-average results were in the 11-12 Mbit/second range. From that I conclude that that the FTP transfer tests were probably network-limited, as testing involving file writes were really no slower than this. Whether that means the "N7 is WiFi limited" or something else is not deducible from the data I collected. In this case, it takes three to tango (N7 - router - laptop).
I do note however that blahman179 said above "100 MB in less than a minute" - 100 MB in 60 seconds is about 14 Mbits/second. Only a little faster than what I observed - right in the same neighborhood.
Note that I had my WiFi router set to G-only. I suppose that the basic bit rate with huge signals in the -30 dBm range means that the radios are indeed transferring packets at a 54 Mbit/sec bit rate - but with a duty factor of less than 30%.
@OP:
fwiw, I did a little searching. Some XDA N7 users with high speed ISP connections report peak download rates of 20-30 Mbps when connected to networks that can do much better than this using PCs.
That "speedtest.net" app reports peak values recorded over short intervals - I suppose that sustained (average) transfer rates are somewhat worse than this.
bftb0 said:
@OP:
fwiw, I did a little searching. Some XDA N7 users with high speed ISP connections report peak download rates of 20-30 Mbps when connected to networks that can do much better than this using PCs.
That "speedtest.net" app reports peak values recorded over short intervals - I suppose that sustained (average) transfer rates are somewhat worse than this.
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Click to collapse
Also Comcast and probably others boost your speed for the first part of your download making burst speeds optimistic.
Sent from my SCH-I605 using xda premium
I have 60 megabit, ive not sat and worked it out, but I often get speeds of 5500kb/s on torrents over wifi. Maybe not making use of all my bandwidth, but the downloads come in quick enough for me.
Sent from my Nexus 7 using Tapatalk HD
Having trouble with all wifi connections on my nexus 7... When i am on my home wifi I get 5mbps where all other g connected devices pull 25mbps. That's not so much of a problem. When I am tethered to my cellphone via wifi I get 600kbps with the nexus 7, but my cellphone tethered via wifi to my pc is 4mbps. I'm concluding something is wrong with the link speed on my nexus 7 but don't know what to do about it. Any help would be appreciated cause I really need more then 600kbps when not at home, especially when my phone regularly pulls 10mbps in my area.
I agree with the WiFi connection being slow with the n7.IMho I've seen better download speeds with my galaxy tab 2. I've also noticed with certain kernels the WiFi is faster.stock to me is the best and now I'm running the faux kernel and it ain't too bad.
I just tried the speedtest.net app and averaged about 9.4Mbs down and .68 up. Stock rom, rooted JB.