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Re: 82540EM very slow on 2.6.0-test[45]

To: netdev@xxxxxxxxxxx
Subject: Re: 82540EM very slow on 2.6.0-test[45]
From: Florian Zwoch <zwoch@xxxxxxxxxxxxxxxx>
Date: Sun, 14 Sep 2003 19:23:32 +0200
In-reply-to: <20030910233512.GB18056@rushmore>
References: <20030910233512.GB18056@rushmore>
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rwhron@xxxxxxxxxxxxx wrote:
ftp'ing a multi-megabyte file gives about 16-20k/second
throughput.  I first noticed this on 2.6.0-test4, but
the slowness may have existed longer.   The destination
machine was running Solaris 8.

same behaviour confimed here. test5 and test4 (can not confirm on earlier). both suffer from real bad network send performance on the 82540EM Gigabit Ethernet Controller (rev 02).

i did not test ftp but scp suffers from exactly the same mentioned above. scp from this device resulted in about 80k/s to a local linux 2.4.x machine. scp to this device gives about 4.5mb/s.

samba copy between the two machines is fast in both directions.

irc dcc protocol stalls down to about 1k/s (host specific?).

nothing has changed between a normal operating 2.4.20 kernel. i suppose something is broken atm. i did not set up any specific duplex mode, but it is detected as 100 mbps full duplex - as expected (like the 2.4 kernel).

maybe someone can look into this?

Florian Zwoch

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