[mythtv-users] Help Diskless frontend

[Ben Dash]

Could someone please share their fstab for their
diskless frontend that is working?

I found that my diskless xBox is stuttering a little
although CPU usage is only ~50%.  The 766mhz PIII
PVR250 backend is fine, and is able to broadcast
stutter free to my wife's 1Ghz PIII with only 0.3% CPU
usage while the xBox continues to stutter.

Since the CPU usage is relatively low on the xBox I am
wondering if the problem could be the MFS root mount:

xbox ~ # cat /etc/fstab
# <fs>                  <mountpoint>    <type>        
 <opts>          <dump/pass>
192.168.0.1:/mnt/data/xbox      /               nfs   
         rw,sync,hard,intr,nolock,nfsvers=2           
  0 0
/dev/hda50              /mnt/fatx/E     fatx          
 defaults        0 0
/mnt/fatx/E/linuxswap           none            swap  
         sw             0 0
/dev/cdroms/cdrom0      /mnt/cdrom      iso9660       
 noauto,ro       0 0
proc                    /proc           proc          
 defaults        0 0

#network nfs volumes
192.168.0.1:/mnt/data/music     /mnt/music      nfs   
 noauto,ro,users,nolock,nfsvers=2        0 0

I notice that the memory usage is close to full, at
118MB or 122MB.  It seems like there are several big
mythfrontend processes:

xbox ~ # ps -ef |grep myth
root      6252     1  0 16:56 ?        00:00:00 login
-- mythtv
mythtv    6258  6252  0 16:56 tty1     00:00:00 -bash
mythtv    6265  6258  0 16:56 tty1     00:00:00
/bin/sh /usr/bin/startx
mythtv    6278  6265  0 16:56 tty1     00:00:00 xinit
/home/mythtv/.xinitrc -- -nolisten tcp -br
-deferglyphs 16
mythtv    6281  6278  0 16:56 tty1     00:00:00 xclock
-digital -padding 2 -g -0+0
mythtv    6284  6281  0 16:56 tty1     00:00:00
/usr/bin/evilwm -snap 6 -bw 0
mythtv    6289  6281  0 16:56 tty1     00:03:06
mythfrontend
mythtv    6290  6289  0 16:57 tty1     00:00:00
mythfrontend
mythtv    6291  6290  0 16:57 tty1     00:00:00
mythfrontend
mythtv    6745  6290  0 21:30 tty1     00:00:05
mythfrontend
mythtv    6746  6290 34 21:30 tty1     00:29:46
mythfrontend
mythtv    6747  6290  1 21:30 tty1     00:00:58
mythfrontend
mythtv    6749  6290  0 21:30 tty1     00:00:12
mythfrontend
mythtv    6750  6290  0 21:30 tty1     00:00:35
mythfrontend
root      6751  6201  0 21:37 ?        00:00:00 sshd:
mythtv [priv]
mythtv    6754  6751  0 21:37 ?        00:00:00 sshd:
mythtv at pts/0
mythtv    6755  6754  0 21:37 pts/0    00:00:00 -bash
root      6891  6778  0 22:55 pts/0    00:00:00 grep
myth

I'm guessing that the reason why there are so many
instances of mythfrontend is because the system is
using heavy weight threads.  Would I improve things by
going to NPTL?

Please let me know if you have any ideas, I'm going to
let lirc wait for now while I get the picture stutter
free, the wife is not quite as happy as I was hoping
:-(

I'm using a 2.6.12.5 kernel and mythTV 0.18.1-r1

Thanks!

Ben


		
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