Re: Kernel 2.6.15.3-rt tests

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El Domingo, 12 de Febrero de 2006 15:00, Mark Knecht escribió:
> On 2/12/06, Marcos Guglielmetti <marcospcmusica@xxxxxxxxxxxx> wrote:
> > Just to say that I repeated the same tests with
> > 2.6.13-1-multimedia-386 from DeMuDi and the results are the same,
> > but the system did not got _totally_ paralyzed when i used
> > ardour+jamin with jackd's 128 buffer: it went super slow, unusable,
> > but it did not got paralyzed in this situation.
> >
> > El Domingo, 12 de Febrero de 2006 01:15, Marcos Guglielmetti 
escribió:
> > > * BAD: into this session, I opened JAMIN and all the system went
> > > very slow. Then I restarted jack into play only mode and it
> > > worked well: I could master the tracks connected to Jamin from
> > > Ardour outputs.
>
> <AND...>
>
> > > I opened Jamin and all goes well with 1024 buffer, but with the
> > > 128 buffer the system just got paralyzed.
>
> Jamin is very CPU intensive and this machine is probably of about
> average or slightly slow CPU speed these days.
>
> If you open a terminal and run top what do you see when it slows to a
> crawl? Look with Jack operating in both play/record and play modes to
> see what happens.
>
> Good luck,

Thanks Mark: here there are the tests: (i forgot to overclock the cpu to 
2000Mhz, I will do it again later, but:)

Reporting:

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 8
model name      : AMD Duron(tm)
stepping        : 1
cpu MHz         : 1800.247
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca 
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips        : 3604.15

MemTotal:       111164 kB

uname -a
Linux 030users 2.6.15.3-rt-musix #1 PREEMPT Sun Feb 12 12:24:53 CET 2006 
i686 GNU/Linux

-----------
Only Jamin:

cat /root/.jackdrc
/usr/bin/jackd -R -P89 -t1000 -m -dalsa -dhw:0 -r48000 -p128 -n2 -P -s 
-S

It works fine
--------
Only Jamin:
cat /root/.jackdrc
/usr/bin/jackd -R -P89 -t1000 -m -dalsa -dhw:0 -r48000 -p256 -n2 -s -S 
-i1

Now, that's ok, ir works fine too
------
(Now jacks did not let me -p128)

	creating alsa driver ... hw:0|hw:0|128|2|48000|1|0|nomon|swmeter|
soft-mode|16bit
	control device hw:0
	configuring for 48000Hz, period = 128 frames, buffer = 2 periods
	ALSA: cannot set period size to 128 frames for capture
	ALSA: cannot configure capture channel
	cannot load driver module alsa

---------
Ardour + Jamin + JACK -p256 duplex mode

 cat /root/.jackdrc
/usr/bin/jackd -R -P89 -t1000 -m -dalsa -dhw:0 -r48000 -p256 -n2 -s -S 
-i1

Opening Ardour with a 7 tracks session with a lot of LADSPA plugins, I 
got 1 (2) xruns

TOP:
 5557 root      15   0  122m  41m 7544 S 46.0 38.0   1:19.84 ardour
 5546 root      19   0 35732 1252 1088 S  3.6  1.1   0:03.49 jackd

When y press play, it gives 3 (22) xruns

Now I open Jamin and the system goes super slow (unusable)

TOP:

 5557 root      15   0  122m  44m 7696 R 55.4 40.9   2:48.33 ardour
 5863 root      16   0 44492  11m 7276 R 30.0 10.6   0:17.10 jamin
 5546 root      19   0 35736 1292 1104 S  3.1  1.2   0:06.71 jackd
  741 root     -81  -5     0    0    0 S  1.5  0.0   0:08.70 IRQ 10
 4146 root       5 -10  115m 6328 2100 S  1.2  5.7   0:27.87 Xorg

xruns 5 (25)

--------

Ardour + Jamin + JACK -p256 play mode

cat /root/.jackdrc
/usr/bin/jackd -R -P89 -t1000 -m -dalsa -dhw:0 -r48000 -p256 -n2 -P -s 
-S

Opening Ardour with a 7 tracks session with a lot of LADSPA plugins, I 
got again 1 (2) xruns

With Ardour playing: 

xruns: 3 (17)

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 6221 root      16   0  122m  38m 7312 S 61.3 35.6   0:50.28 ardour
 4146 root       5 -10  114m 6624 1708 S  3.6  6.0   0:35.86 Xorg
 4645 root      15   0 32320 5800 4404 S  3.0  5.2   0:06.99 konsole
 6186 root      18   0 35720 1336 1092 S  2.7  1.2   0:01.78 jackd
  741 root     -81  -5     0    0    0 S  1.3  0.0   0:12.08 IRQ 10

Now I open Jamin and the system goes super slow again (unusable), but 
not as slow it was before: a little less slow

TOP:

 6221 root      16   0  122m  38m 7336 R 47.7 35.6   1:56.07 ardour
 6433 root      17   0 44516  11m 7208 R 23.6 10.4   0:03.60 jamin
 4146 root       5 -10  115m 7200 2068 S  2.6  6.5   0:37.93 Xorg
  741 root     -81  -5     0    0    0 S  1.4  0.0   0:13.07 IRQ 10
 6186 root      18   0 35724 1372 1116 S  1.4  1.2   0:03.72 jackd

xruns: 4 (19)
-------------

Ardour + Jamin + JACK -p512 play mode

 cat /root/.jackdrc
/usr/bin/jackd -R -P89 -t1000 -m -dalsa -dhw:0 -r48000 -p512 -n2 -P -s 
-S

Opening Ardour with a 7 tracks session with a lot of LADSPA plugins, I 
got again 1 (1) xruns

TOP:

 6614 root      15   0  122m  44m 9088 S 56.7 40.7   0:30.05 ardour
 4146 root       5 -10  114m 5316 1412 S  1.3  4.8   0:42.23 Xorg
 6560 root      15   0 28912 7452 5800 S  1.3  6.7   0:01.63 qjackctl
  741 root     -81  -5     0    0    0 S  0.3  0.0   0:14.04 IRQ 10
 4645 root      16   0 32320 5452 4100 R  0.3  4.9   0:08.01 konsole

Now I open Jamin and the system goes a little slower, but usable

TOP (without playing)

 6614 root      15   0  122m  44m 9108 S 51.0 40.8   1:20.63 ardour
 6734 root      15   0 44620  11m 7272 S 32.0 10.6   0:21.35 jamin
 4146 root       5 -10  115m 6068 2012 S  2.4  5.5   0:44.65 Xorg
 6580 root      20   0 35848 1272 1072 S  2.1  1.1   0:01.98 jackd
 4645 root      15   0 32320 5856 4332 S  1.5  5.3   0:08.55 konsole
 6560 root      15   0 28912 7544 5832 S  0.6  6.8   0:02.26 qjackctl
  108 root      15   0     0    0    0 S  0.3  0.0   0:00.12 pdflush
  189 root     -60  -5     0    0    0 S  0.3  0.0   0:01.64 IRQ 12
  741 root     -81  -5     0    0    0 S  0.3  0.0   0:14.51 IRQ 10
 6797 root      16   0  2196 1092  848 R  0.3  1.0   0:00.04 top
    1 root      16   0  2036  416  388 S  0.0  0.4   0:00.12 init

TOP (playing from ardour connected to jamin)

 6614 root      16   0  122m  44m 9144 R 55.3 40.8   2:25.51 ardour
 6734 root      16   0 44744  11m 7332 R 38.5 10.7   1:02.06 jamin
 4146 root       5 -10  115m 6200 2044 S  2.2  5.6   0:48.64 Xorg
 6560 root      15   0 28912 7772 6020 S  1.1  7.0   0:03.47 qjackctl
  741 root     -81  -5     0    0    0 S  0.8  0.0   0:15.16 IRQ 10
    3 root      -2   0     0    0    0 S  0.6  0.0   0:00.93 
softirq-timer/0
 6580 root      20   0 35848 1272 1072 S  0.6  1.1   0:03.47 jackd
  110 root      15   0     0    0    0 D  0.3  0.0   0:00.37 kswapd0
  257 root     -47  -5     0    0    0 S  0.3  0.0   0:02.97 IRQ 14
 4129 root      30  15  3592 1976  500 R  0.3  1.8   0:02.55 preload
 6897 root      16   0  2200 1092  848 R  0.3  1.0   0:00.07 top

xruns 4 (4)





-- 
Marcos Guglielmetti  
Coordinador del desarrollo de Musix GNU+Linux 
(www.musix.org.ar) 
Mirrors: (www.musix.distrux.net) (www.pc-musica.com.ar/musix) 
(www.k-maleon.com/musix)

	
	
		
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