Hi there,
I maybe raised a hare on the Debian Etch (up-to-date) r8169 module.
It was used to manage an onboard Ethernet chipset (mobo is Gigabyte
GA-G33M-DS2R, the chipset is very likely Realtek RTL8111B - complete
designation : dev_8168&subsys_e0001458&rev_01).
The problem is rather strange : it shows up only during communications
in a direction (server to client), only when the client is Windows
(tested with 3 XP pro clients, no other versions available), and only
when it is the client who initiates the transfer. The symptom is rather
simple: silly speeds (generally between 40 and 300 kB/s on a wired 100
Mbps Ethernet LAN).
iperf : 94 Mbps when the server is run on Windows, 14 Mbps when the
server is run on Debian.
Testing with SMB and FTP just confirmed iperf's diagnostic : getting
files using FTP from the client shows a 1.5 MB/s speed. SMB is more
impacted by the problem, probably because of the smb.conf "socket options".
No problem when the transfer is initiated by Debian : putting a file on
a Windows share (usung smbclient put) shows up about 11 Mbps speed.
No problem with the other direction (XP clients to Debian).
Since i was unable to solve the problem, i just added a PCI Ethernet
add-on card. Realtek chipset, managed by the 8139too module :
everything's just flying, thanks.
Since i spent a dozen hours on the problem, i just thought it could be
helpful to report about that.
Questions now : is it a bug ? If yes, how to verify it wasn't already
reported (my Google-Fu didn't find anything, but i'm just a
"grasshopper"...)
At last, if it wasn't already described, how to do it ?
That's my "first time", i don't want to screw up the whole thing ;)
Thanks for any input
--
Aurélien
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