<div class="gmail_quote">On Thu, May 13, 2010 at 3:41 PM, Graeme Woollett <span dir="ltr"><<a href="mailto:g.woollett@irl.cri.nz">g.woollett@irl.cri.nz</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div><div></div>See <a href="http://ubuntuforums.org/showthread.php?t=1022411" target="_blank">http://ubuntuforums.org/showthread.php?t=1022411</a><br></div></blockquote><div><br>That thread seems to be saying that the problem is the driver not the chip. It also sounds like it's specific to using the 8169 driver with embedded 8111 or 8168 chips.<br>
<br>As I said I haven't had any problems with my 8169 PCI card. Thought I can't say I've managed to hit full gigabit speeds on any of my gear. File sharing is bottlenecked by CPU and/or disk well below the gigabit level. Benchmarking with netio I can get about 58MB/s (TCP), still limited by the CPU in the fileserver. Between my desktop and laptop I can get up to about 75MB/s and it doesn't seem to be pegging the CPUs (I guess it might be pegging one of the cores in the laptop). It seem likely that the cheap switches I'm using are a bottleneck.<br>
<br>Cheers,<br>Steve<br></div></div>