On Fri, Jan 26, 2007 at 04:05:05PM -0800, blah deblah wrote: > I've made myself a slackware 10.2 uml virtual machine using the > 2.6.19.2 kernel. I've configured it to use slirp for networking. My > problem is that the upload speed from the virtual machine seems to be > capped at 46KB/s. For example if I use scp to put a file onto the > machine I will get about 2MB/s, but if I use scp to get a file from > the machine I get about 46KB/s. But if I run several instances of scp > getting files from the virtual machine, all get about 46KB/s each. Any > ideas what's going on? Why isn't it allocating all available bandwidth > between the connections?
An ordinary slirp runs as though connected to a modem running at a fixed speed; this makes it quite slow. There's a "FULLBOLT" #define in the source that makes it go as fast as possible. If you use debian, an alternate slirp binary is provided as /usr/bin/slirp-fullbolt with this enabled. To use it, run with "eth0=slirp,,slirp-fullbolt" as your uml netdev, or arrange for "slirp" on your machine to run slirp-fullbolt. Would a patch be accepted to make uml try to use slirp-fullbolt by default, and fall back to slirp otherwise? Jason ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
