Re: [coLinux-users] How to speed up coLinux

[<ka...@gm...>]

The machine is a Pentium 4 2.66. The host is XP SP2 and i use  
Topologilinux in colinux mode (i think it's colinux 6, i don't remember  
exactly). Topologilinux 6 is based on Slackware 10.1 so it uses x.org and  
kde from that release.

Windows setup:

The real ethernet is 192.168.1.1 - it is bridged wih pcap
The taps are on different subnets, as follows:
#1 -	"SMB"	- 192.168.2.1
#2 -	"X"	- 192.168.3.1
#3 -	"ESD"	- 192.168.4.1

they are passed to colinux in the same order

Their counterparts in colinux are:
eth0: 192.168.1.2
eth1: 192.168.2.2
eth2: 192.168.3.2
eth3: 192.168.4.2

X server is Hummingbird Exceed (last version with GLX extensions so you  
can do OpenGL, it looks quite good), and i have Cygwin ESD, but i don't  
use it for now as this machine hasn't got its sound output connected. So i  
use another machine (192.168.2.3) as the esd output. For some reason i  
couldn't get Cygwin ESD to work over the ethernet so i had to use JEsd  
(http://www.jcraft.com/jesd/) there.

Linux setup:

SAMBA shares a 300G, XFS formatted hdd as the data store (this is why i  
started using colinux - i couldn't access my data from windows before  
that). One share for the TAP #1 with rw perms, and one share for the LAN  
(192.168.1.xxx) with ro perms.

As for X and esd, the variables DISPLAY and ESPEAKER are set accordingly.

Default runlevel is 4. I use KDM for login.

For playback: xmms / Xine.

The end result is each application having its own adapter for  
communication. To switch the linux esd output between the host and the  
remote machine i export ESPEAKER=espeaker and have a sed-based script  
changing the IP in /etc/hosts. This is better than changing an exported  
variable as you don't need to relogin for it to have effect.

I'm playing with different MTUs and other network parameters now to see  
what is best for each application, but this is a slow job and still don't  
have definitive results. But for the daily work it's all good! I can use  
all the adapters at once and AFAICT it haves very decent performance (yes  
with video, sound and file transfers).

Hope it helps, if you need more details ask me. I'm at work now and this  
is all i can remember from here, for more i'll have to check my system up,  
and tell you what switches i use for each app exactly.

Joaquín


En 25/04/2007 05:18:06, Julien Langlois <jul...@gm...>  
escribió:

> Hi
>
> 2007/4/24, Joaquín Seijó <ka...@gm...>:
>> With this setup i can have (after KDM login) the KDE kicker on one side  
>> of
>> the screen and the windows taskbar on the other, watch videos w/o  
>> glitches
>> and redirect the sound to the windows host or to another machine that  
>> has
>> its sound output to an amplifier to have the movies with surround sound.
>
> Could you detail your configuration please ? I've latency sound
> problem .... I can't listen sound without 2 seconds latency ... And
> the video render don't allow me to watch video correctly :(
>
> Thanks
>
>    Julien Langlois