On Tue, Jul 20, 2010 at 09:01:01AM -0400, Bernie Innocenti wrote: > El Tue, 20-07-2010 a las 16:26 +1000, James Cameron escribi??: > > On Mon, Jul 19, 2010 at 11:41:07PM -0500, Mikus Grinbergs wrote: > > > Earlier, I reported that ethernet data transfers into my XO-1.5 were > > > now running slower than ethernet data transfers into XO-1 systems. > > > > I've just tested this, though I only had one ethernet device that I > > could test with. > > James and Mikus: what specific ethernet dongle were you using in these > tests?
I am using a generic one with no particular history. USB ID 9710:7830 MosChip Semiconductor MCS7830 Ethernet. Causes kernel module loads mcs7830 usbnet mii. > Also, what does top say during the test? In particular, what are the > percentages of system (sy), i/o wait (wa) and irq servicing (hi)? Well, that's interesting. On XO-1 with os301, sy=3.6, wa=0, hi=5.4, and the iperf process sits at about 5% CPU utilisation. On XO-1.5 with os206, sy=58, wa=0, hi=19.3, and the iperf process is pinned at 99% CPU utilisation. Given that this is the same 2.6.31 kernel, on different hardware, with the same binaries ... I'm inclined to suspect there may be a problem lurking somewhere. -- James Cameron http://quozl.linux.org.au/ _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
