The problem I have is a slow ppp connection through the serial port of the uml which is attached to the host modem (serial port, - /dev/ttyS0), using "ssl4=tty:/dev/ttyS0".
I have 2.22.1 guest kernel with a vanilla Fedora 7 filesystem. The host is vanilla Fedora 7 (2.6.21.3494).
I have a modem board in the host that connected at 33. KBPS. I installed wvdial and pppd in the guest. The guest is started with "ssl4:tty:/dev/ttyS0". I start wvdial in the uml (set to the /dev/ttyS4) and the uml wvdial session connects directly to the ISP without problems. I can ping the ISP (300ms or so) successfully. I can run various network apps without problems, but they all seem slower than they should be. When I run ssh and do a cat of a file just to stream some text back, I find that the speed is fast for a second or so, and the display pauses, then "blips" out a Kbytes of so of data. then repeats. For example, the fastest ftp xfer is about 800 bytes/sec -I expect about 2kbytes - 3kbytes. The printing of hash marks (1kbytes xfer'ed) prints one, sometimes two hash marks quickly, then pauses.
I checked a few things: The swap file on the host is unused, The uml (as shown by a "top" on the host) is not even close to being out of memory. Programs on the uml seem to be run normally - programs seems to run fast (i.e. find /, etc.).
I did not apply the SKAS 3 patch on the host, but I wouldn't that should be an issue with dial-up speeds.
Any ideas would be appreciated.
Thanks,
Mark
Mark
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