[mythtv-users] Minimal software configuration for MythTV

Marcos Iuato iuato at samurai.com.br
Tue Apr 10 14:23:11 UTC 2007


Hi,

I have a limited hardware to run mythtv and to use as my personal 
computer, so I would like to configure mythtv with the minimal 
configuration to use less memory and cpu.

When watch tv with Mythtv, sometimes image gets freeze and appears this 
message "2007-04-10 07:30:02.629 NVP: prebuffering pause".

I am using a tuner without hardware encoder, just  with hardware mpeg2 
decoder so I am wondering if my hardware can handle mythtv and a usage 
as Personal computer.

What is the lowest quality that Mythtv could run with my hardware and to 
be possible to use another apps like firefox, openoffice, amarok?

Is it possible not to use software encoder when recording live tv or 
pvr? Becouse if I record with raw format it could save cpu and memory 
but I know it would generate bigger files, for me I prefer having bigger 
files with less usage of cpu and memory.

I have noted and just running mythtv, I am getting into swap, but the 
minimal requisites for memory is 256MB. Why  mythtv is eating so many 
memory?

I am using xfs in a small partition of 10Gb.

top - 08:20:57 up 20:59,  4 users,  load average: 3.09, 3.06, 3.54
Tasks:  81 total,   2 running,  79 sleeping,   0 stopped,   0 zombie
Cpu(s): 65.0%us,  5.9%sy,  0.0%ni, 23.6%id,  5.2%wa,  0.1%hi,  0.2%si, 
0.0%st
Mem:    224304k total,   220856k used,     3448k free,      464k buffers
Swap:   979956k total,   114452k used,   865504k free,    83004k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND 
 

27648 root      18   0  258m  42m  15m S 59.3 19.6  59:16.54 mythbackend 
 

  9636 sdm       15   0  187m  89m  27m R 18.0 40.8  14:06.16 
mythfrontend 

     1 root      15   0  1948  540  512 S  0.0  0.2   0:02.05 init 
 

     2 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 
migration/0 

     3 root      34  19     0    0    0 S  0.0  0.0   0:00.02 
ksoftirqd/0 

     4 root      10  -5     0    0    0 S  0.0  0.0   0:01.94 events/0 
 

     5 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 khelper 
 

     6 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 kthread 
 

     9 root      10  -5     0    0    0 S  0.0  0.0   0:00.81 kblockd/0 
 

    10 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kacpid 



Hardware:
CPU:
     processor       : 0
     vendor_id       : GenuineIntel
     cpu family      : 6
     model           : 13
     model name      : Intel(R) Celeron(R) M processor         1.20GHz
     stepping        : 6
     cpu MHz         : 1200.062
     cache size      : 512 KB
     fdiv_bug        : no
     hlt_bug         : no
     f00f_bug        : no
     coma_bug        : no
     fpu             : yes
     fpu_exception   : yes
     cpuid level     : 2
     wp              : yes
     flags           : fpu vme de pse tsc msr mce cx8 apic sep mtrr pge 
mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe up
     bogomips        : 2401.59
Memory:	
     256MB
Tuner:
     Prolink PlayTV USB 2.0

Software:
     mythtv 0.20-svn20070223-0.0
     debian etch
     kernel 2.6.18.

Thanks for any help.

Cheers,
Marcos Iuato


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