Date: Mon, 19 Jan 2004 14:05:27 +1030
From: "Mark Williams (MWP)" <mwp@internode.on.net>
To: linux-kernel@vger.kernel.org
Subject: TG3: very high CPU usage
Message-ID: <20040119033527.GA11493@linux.comp>
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Greetings all,

Has the TG3 driver been well tested with the AC9100 and compatible gigabit NIC chipsets?

iperf, between a 2.6.0 box and a WinXP box (both running Netgear GA302Ts with the AC9100), shows max throughput of 35MB/sec.

However, when using Apache or any FTP client/daemon, the TG3 driver appears to be VERY slow maxing out CPU usage at 100% while only transfering at around 12MB/sec.
This applies for both incoming or outgoing data.

2.6.1 behaves worse, using 100% CPU usage to maintain approx 9MB/sec rates.

Ive tried other NICs, etc and confirmed that it is a problem with the TG3 driver.

Is this a known problem?

Thanks,
 Mark Williams.
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