NFS, speed gone, stalled often.

crispyleif · 11-05-2005, 12:37 AM

ok, this over my head !

I have a NFS/Samba server running, and everything has been smoth, transfer speed laying on 10-20 MBps with 100 Mbps NIC's.

Now : I changed one of the computers from wired to wireless.
(Dlink DI624 router and DWL G120 usb adapter)

Transfer speeds are now around stalled - 30 Kb/s.... not smooth. not at all.

NFS share is mounted with options "rw" and "async". Client finds the share as NFS v 2.

Both the server and the client is running Debian.

Anybody have an idea ?

crispyleif · 11-05-2005, 08:01 AM

Just giving more info in case it helps the replies :

NFS is set up the right way, is working, no faulty permissions etc.

NFS used to be * good * but switching to wireless on one of the LAN PC's made NFS transfer rate (to/from the wireless) PC take a plunge.

I also noticed that download rates from HTTP/FTP are a bit lower than before.

teckk · 11-05-2005, 09:42 AM

Quote:

Now : I changed one of the computers from wired to wireless.
(Dlink DI624 router and DWL G120 usb adapter)

Is this USB 1.1 or 2.0?
1.1 has a transfer speed of 12Mbps, 2.0 is 400Mbps.

The pathway between 802.11* devices can slow down connect speed too. A block or brick wall or greater distance between them will cause a slower speed. 802.11b is 11Mbit. You should be able to get a 1 Mbyte transfer rate. Also depends if your network device is running full or half duplex.

You can run ethtool or mii-tool to see what is going on.

crispyleif · 11-05-2005, 09:49 AM

Hi !

First : USB adapter (G120) is USB 2.0 but my USB CONTROLLER is 1.1....

I checked ethtool on the server to see that it was set to auto-negotiation, cause the other PC are runnin 100 Mbps. Default is full-duplex.

Just as you say, I figured (should have written this before....) that I would get around 1 MBps transfer... but it stalls or runs extremely slow...max 30 KBps. (KiloBytes, so there's no misunderstanding).

If I go into the server from the web, say FTP, all normal...

EDIT :: mii-tool output on client :

sar:/etc/rc0.d# mii-tool wlan0
SIOCGMIIPHY on 'wlan0' failed: No such device

seems like bad stuff..internet is working btw

crispyleif · 11-05-2005, 02:45 PM

Just informing.... I ditched the whole wireless thing. I hoped I wouldn't need any more cables as the house has, well, quite a few meters of it...anyway, network speed comes first

I'm sure there is a solution to this, but I need to prioritize. Right now, I rather use the time elsewhere. At least all the "common" problems went smoothly, like ndiswrapper.

Thanks for all replies !