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cb22 is offline cb22
2010-05-03 , 02:10
Posts: 82 | Thanked: 214 times | Joined on Jan 2010 @ Cape town
#11
Writing to the flash memory is slow? I've seen speeds of 10MB/s easy when copying files over USB onto the internal flash, thats ~80Mb/s and should easily be able to cope with a wifi connection...
 
Jaco2k is offline Jaco2k
2010-05-03 , 14:41
Posts: 118 | Thanked: 80 times | Joined on Jan 2010
#12
yeah, I think something is up with this. Might log an error report and see where it leads...
 
benh_n900 is offline benh_n900
2010-05-03 , 14:53
Posts: 82 | Thanked: 44 times | Joined on Feb 2010
#13
I have noticed that when I SCP files over wifi it is painfully slow - 300KB/s (as measured by filezilla)
 
God_Lx is offline God_Lx
2010-05-03 , 18:03
Posts: 45 | Thanked: 3 times | Joined on Dec 2009
#14
I can get around 8mbits with the powersaving setting to the max, so it's definitly not a wireless problem...

Tried with any other router or AP ?
 
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esthreel is offline esthreel
2010-05-03 , 18:22
Posts: 259 | Thanked: 55 times | Joined on Apr 2010 @ Vilnius, Lithuania
#15
Maybe this is router problem, I am using ASUS WL-500W.
 
stlpaul is offline stlpaul
2010-05-03 , 18:25
Posts: 1,141 | Thanked: 781 times | Joined on Dec 2009 @ Magical Unicorn Land
#16
Originally Posted by cb22 View Post
Writing to the flash memory is slow? I've seen speeds of 10MB/s easy when copying files over USB onto the internal flash, thats ~80Mb/s and should easily be able to cope with a wifi connection...
But the writes tend to block all I/O and use 100% CPU waiting, which could(?) interfere with wifi driver operation. It was a theory.
 
Gobelet is offline Gobelet
2010-05-03 , 18:48
Posts: 15 | Thanked: 5 times | Joined on Dec 2009
#17
Remove the encryption. You'll get wayyy faster speeds, but absolutely no security... That's one way.
 
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thecubed is offline thecubed
2010-05-03 , 18:59
Posts: 91 | Thanked: 32 times | Joined on Jan 2008 @ Near: Gilroy, CA
#18
A quick iperf test from my wireless laptop as server to my n900 as client shows around 6.86Mbps.

I'm using a DD-WRT'd WRT54g. Powersaving is enabled on my n900.

Well, apparently it's not the SSH encryption making my SCP transfers so slow.


EDIT:
Powersaving on/off/intermediate has no effect at all for me. It stayed within the ballpark of 6.86Mbps with each setting. I even disconnected from wireless then reconnected. Short of a reboot, I don't actually know if the settings took effect or not.
__________________
[Nokia N900] [Lenovo T61p]
15GB Movies / 5GB Music. I'm ready to go!
Loving this device, bugs and all.
http://thecubed.com
Last edited by thecubed; 2010-05-03 at 19:03. Reason: Add more infos...
 
Joorin is offline Joorin
2010-05-03 , 19:13
Posts: 726 | Thanked: 345 times | Joined on Apr 2010 @ Sweden
#19
Originally Posted by Jaco2k View Post
Hi all,

I have a 30mbits connection at home (verified) and connecting from my laptop via WLAN I can easily get ~22mbits (WPA2, WirelessG)

Connecting with my N900, be it to this AP or to any other (e.g. Public ones that I know are very fast) I cannot get past 5mbits download.

What's the matter? Conky tells me I am connected at 54mb/s and quality is good, so...

Anyone seen similar behaviour?

Cheers,
J
How did you measure the speed? Downloading random files from the internet is not reliable.

And as others have written already, check power saving and send power.
 
Gobelet is offline Gobelet
2010-05-03 , 22:10
Posts: 15 | Thanked: 5 times | Joined on Dec 2009
#20
No, I mean the WEP/WPA encryption. For example on my WRT610N with a Wifi-N card that "syncs" at 300Mbps, I can get transfers at about 18 MBytes/s, and if I enable WPA, it falls at about 8 MBytes/s.
 
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