Cooperative Linux

Despite the improvement wishes I can give you an advice:

You should always use as tap interface for X. I use one in the 172.16.0.x
network only for X.

eth1=tuntap,TAP-LOOP

where TAP-LOOP is a TAP Win32 adpater using 172.16.0.3 and eth1 uses
172.16.0.2. (I use 2 separate TAP Win32 adapters, 2nd is for LAN (eth0) and
slirp covers WLAN (eth2).

This resulted in best performance for X and works even if there is no
other network.

Bebbo

Tried the 2007-01-17 build.

The transfer into CoLinux using slirp is now running at about 6MBytes per
second.
The transfer from CoLinux to a remote are still running at approx
500kbyte/s. NASTY.

The Slirp measurements were made to a remote (100BaseT) server. Before as
well as this time. The 6MBytes/s is maxing out the remote server (it's an
old machine).
So I've relocated to a better server, one with a gigabit network card like
the portable...

First I tested the server with another linux machine. On 100baseT it ran
at 11MBytes/s on a 1000BaseT it ran at 29MBytes/s upload to the server
25MBytes/s from the server to a little 1Ghz box, this appears to be disk
limited.

I'm still getting the same speeds from CoLinux. Maybe 6.1MBytes/s
download.
Getting suspicious I try the same FTP using a windows FTP client
(LeechFTP) and sure enough the download from the server is at about
6MBytes/s. OTOH the upload is about 12MBytes/s not as good as a machine a
third the power of the portable but a little different to the CoLinux
upload speed.

I also tried the bridge device 10MB/s download (1 Hyperthread-CPU pegged)
5MB/s upload (1 HtCPU at 80%)

I'm gonna see if I can improve my windows download speed now ... unlikely
though.

http://www.henrynestler.com/colinux/autobuild/devel-20070117/
Last autobuild has slirp improvements, from updating qemu sources.
The most interesting is the incrasing MSS from 512 to 1460, this reduce
the packet reassabling overhead. Slirp should go faster now.

Would you test the slirp speed under your same environment and please
report the results?

Incrase the task priority of colinux-slirp-net-daemon, this is one of the
todo for next releases.