Date: Sat, 28 Mar 2009 10:41:17 +0100 From: Sebastiaan van Doesselaar <sebastiaan@akiha.nl> To: freebsd-current@freebsd.org Subject: Slow network problem Message-ID: <3DB40EE4-80C8-49D4-8094-27A6F424D601@akiha.nl>
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Dear all, At the moment I'm running a CURRENT snapshot from February, yet somehow my network speeds are quite low. I've tested this with iperf, SMB and SCP, yet all give me more or less the same speeds, which is about 50 - 60Mbps. The weird thing is that this is only the case when the FreeBSD machine receives data, sending data is all fine. At least, with a 100Mbps link iperf gives me quite decent speeds (>90Mbps) This is the case for gigabit as well as 100Mbps, depending on what cable I use to the switch. I've also tested this directly, with a cable to a machine, but this was to no avail. I've tried changing some variables with sysctl (net.inet.tcp.recvspace, sendspace, recvbuf_auto, kern.ipc.maxsockbuf), yet those did not do anything. dmesg has this to say about the network card: rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0 rgephy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, aut I cannot say I've tested this with a STABLE release, but in Windows and Gentoo Linux this worked fine. I have found one person with a seemingly similar problem, but this person had the problem a couple of years ago and did not resolve it at the time, or so it seems. See http://kerneltrap.org/mailarchive/freebsd-hackers/2006/5/30/214298 for his thread. I hope someone can give me some tips that will solve this problem. If information is lacking, please do say so. With kind regards, Sebastiaan van Doesselaar
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