[PlanetCCRMA] Re: Greetings FC2 I got capabilities and jack working

[Daniel Tonda Castillo]

Fernando Pablo Lopez-Lezcano escritos:

> Great! Thanks for posting! What hardware are you running? (processor,
> chipset, video chipset) Maybe I'm the only one having problems :-) 
> 

Hardware as listed by lspci:

/sbin/lspci
00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX
Host bridge (rev 03)
00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP
bridge (rev 03)
00:05.0 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
00:05.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev
01)
00:05.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev
01)
00:05.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:08.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro
100] (rev 09)
00:08.1 Serial controller: Xircom Mini-PCI K56Flex Modem
00:0b.0 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI
to Cardbus Bridge with ZV Support (rev 20)
00:0b.1 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI
to Cardbus Bridge with ZV Support (rev 20)
00:0c.0 Multimedia audio controller: Yamaha Corporation YMF-754
[DS-1E Audio Controller]
01:00.0 VGA compatible controller: S3 Inc. 86C270-294
Savage/IX-MV (rev 13)

CPUINFO

cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 6
cpu MHz         : 696.941
cache size      : 256 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 pae mce cx8 sep mtrr
pge mca cmov pat pse36 mmx fxsr sse
bogomips        : 1376.25


> Do you get the same performance if you go down to lower latencies? You
> are using jack with 1024x3, how about 256x2 or less? Any xruns in those
> conditions? 

Jackstart doesn't start with periods <= 2.
With the command line:
/usr/bin/jackstart -d alsa -d hw -r 48000 -p 256 -n 3 -z &
I get a bunch of xruns:
**** alsa_pcm: xrun of at least 4.949 msecs 
**** alsa_pcm: xrun of at least 0.223 msecs 
**** alsa_pcm: xrun of at least 7.208 msecs 
**** alsa_pcm: xrun of at least 3.039 msecs 
**** alsa_pcm: xrun of at least 5.195 msecs 
**** alsa_pcm: xrun of at least 2.589 msecs
**** alsa_pcm: xrun of at least 3.065 msecs 
**** alsa_pcm: xrun of at least 2.995 msecs 
**** alsa_pcm: xrun of at least 2.490 msecs 
**** alsa_pcm: xrun of at least 9.959 msecs 
**** alsa_pcm: xrun of at least 4.684 msecs
**** alsa_pcm: xrun of at least 4.494 msecs

Is the command correct?
I'll try lower frames and post whatever I find.

:)

> 
> BTW, I do have a kernel/alsa combo with the realcap module, I'll try to
> make it available today or tomorrow so more people can play with it if
> they decide to install FC2. 
> 
> -- Fernando
> 
> 

Great!
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