Date: Wed, 3 Feb 2010 17:25:03 -0800 From: Pyun YongHyeon <pyunyh@gmail.com> To: Jonathan Chen <jonc@chen.org.nz> Cc: freebsd-stable@freebsd.org Subject: Re: if_bge upload stalls repeatedly (Was: 8-STABLE outgoing scp stalling frequently) Message-ID: <20100204012503.GK5901@michelle.cdnetworks.com> In-Reply-To: <20100203225255.GB14315@osiris.chen.org.nz> References: <20100202193616.GA16953@osiris.chen.org.nz> <20100202212029.GA5295@asgard.cs.uoi.gr> <20100203225255.GB14315@osiris.chen.org.nz>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Feb 04, 2010 at 11:52:55AM +1300, Jonathan Chen wrote: > On Tue, Feb 02, 2010 at 11:20:29PM +0200, Nikos Ntarmos wrote: > > On Wed, Feb 03, 2010 at 08:36:16AM +1300, Jonathan Chen wrote: > > > Hi, > > > > > > I've noticed that on a recent 8-STABLE/amd64, scp(1) appears to be > > > stalling very frequently. This is the output from a "scp -v -v" > > > of a 300Mb file from a local to a remote within an internal network: > > [...] > > > Does anyone know what's happening here? Any tips on how to track down > > > what the problem is? The network config appears to be fine - fetch(1) will > > > have downloads speeds of up to 300KB/s. > > > > But how about upload speeds? It seems that's where scp is suffering as > > well. > > This is the obvious test that I should have done; and you're hit the > nail on the head. bge(4) on 8-STABLE (csup'd 4-Feb-2010) has a very > bad upload speed. > > I've just tried using ftp to transfer some files: > > Upload speed: starts at 63 KB/s, falls rapidly before stalling. > Download speeds: starts at 9 MB/s, increasing slightly before completing. > I'm not sure but recently added code to support TSO may cause the issue. Would you show me verbose boot output(only bge(4) related one)? To rule out possible TSO issue, disable TSO and try it again(#ifconfig bge0 -tso). Does it make any difference? > Device from dmesg: > bge0: <Broadcom NetXtreme Gigabit Ethernet Controller, ASIC rev. 0x00a002> mem 0xf1bf0000-0xf1bfffff irq 17 at device 0.0 on pci9 >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100204012503.GK5901>