Progress report on RAM and CPU of OLPC (Re: [OLPC-devel] do we need s/o to make .swf plug-in for olpc browser?)

[supat at supat.eu.org]

Hi,

So far, to make .swf to work on OLPC need below to run on server:


bash-3.00# ps aux|grep esd
zxc       8472  1.3  0.3  11588  6704 ?        S    16:30   0:03 
/opt/kde/bin/artsd -F 10 -S 4096 -a esd -d -n -s 60 -l 3 -f
root      8679  0.0  0.0   1560   516 pts/1    S+   16:34   0:00 grep esd

It will eat server RAM up to 338 MB as below:

top - 17:10:45 up 10:40,  2 users,  load average: 0.10, 0.06, 0.04
Tasks: 259 total,   1 running, 247 sleeping,   0 stopped,  11 zombie
Cpu(s):  2.5% us,  1.0% sy,  0.0% ni, 95.7% id,  0.0% wa,  0.2% hi,  0.7% 
si
Mem:   2075112k total,  1136368k used,   938744k free,    11144k buffers
Swap:        0k total,        0k used,        0k free,   520556k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  9050 zxc       15   0  268m 253m  14m S  3.3 12.5   0:22.05 
nspluginviewer
  3975 root      14  -1 63448  12m 2024 S  0.7  0.6   0:05.72 X
  4055 root      15   0 25096  13m  10m S  0.7  0.7   0:03.89 kdeinit
  4047 root      15   0 24004  12m 9.9m S  0.3  0.6   0:00.34 kdeinit
  8120 fud       15   0  4808 3172 1104 S  0.3  0.2   0:00.75 perl

On OLPC need to run below inittab:


  x1:4:wait:/etc/rc.d/rc.4
  sss:35:respawn:/usr/X11R6/bin/X :1 -query 10.9.0.249
# End of /etc/inittab

The problem found is network crash often and I need to do sequence of 
below command to bring back network:

ifconfig eth0 down
rmmod usb8xxx
modprobe usb8388

I guess playing .swf huge movies will eat big bandwidth and need more 
network cache to buffer the movie.

If anyone know how to do so please enlight me.

Thank you,

supat

On Wed, 26 Jul 2006, supat at supat.eu.org wrote:

>
>
> On Fri, 21 Jul 2006, supat at supat.eu.org wrote:
>
>> Original work will not support wireless and sound.
>> What I will do is repeat my work on those source.
>> 
>> By this way OLPC will use server RAM and CPU to do big task for .swf movie. 
>> :)
>> 
>> supat
>
> NOW I can use NXserver to play both sound and image to OLPC.
> It will send sound via esd.
>
> It took me very long time to make NXserver to work to test my hypothesis. And 
> now the strange feature is server run gdm while client run kdm :(
>
> BY using this method, anything server can have capability will send to OLPC 
> w/o need huge CPU and RAM.
>
> supat
>