[ardour-users] adour using over 80% CPU when doing nothing

[Ben Edwards]

OK - here goes

It is when I put jamin into the aquation that I start getting lots of
XRUNS so I guess I shuold reallly take this to the jamin list.

Yes there are lots of XRUNS

I am running on a P4 1.7Ghz with 750MB memory.  It is a Ubuntu/Debian system.

Linux red 2.6.7-1-686 #1 Fri Aug 13 05:58:22 UTC 2004 i686 GNU/Linux

I am running:
jackd 0.99.16
ardour 0.9beta19 (Ardour/GTK 0.529.3 running with libardour 0.827.4)
jamin 0.9.16
Qt: 3.2.3
qjackctl: 0.2.13

lspci gives:
0000:00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset
Host Bridge (rev 03)
0000:00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP
Bridge (rev 03)
0000:00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface
to PCI Bridge (rev 12)
0000:00:1f.0 ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 12)
0000:00:1f.1 IDE interface: Intel Corp. 82801BA IDE U100 (rev 12)
0000:00:1f.2 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 12)
0000:00:1f.3 SMBus: Intel Corp. 82801BA/BAM SMBus (rev 12)
0000:00:1f.4 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 12)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM
AC'97 Audio (rev 12)
0000:01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400
AGP (rev 04)
0000:02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)

lsmod gives:
Module                  Size  Used by
mga                   110244  2
proc_intf               3808  0
freq_table              4228  0
cpufreq_userspace       5272  0
cpufreq_powersave       1728  0
button                  6296  0
ac                      4812  0
battery                 9388  0
ipv6                  247904  15
af_packet              21896  2
8139too                25568  0
8139cp                 20256  0
mii                     5056  2 8139too,8139cp
crc32                   4288  2 8139too,8139cp
snd_intel8x0           35468  3
snd_ac97_codec         67844  1 snd_intel8x0
snd_pcm_oss            52968  0
snd_mixer_oss          19456  3 snd_pcm_oss
snd_pcm                95140  2 snd_intel8x0,snd_pcm_oss
snd_timer              24900  1 snd_pcm
snd_page_alloc         11432  2 snd_intel8x0,snd_pcm
snd_mpu401_uart         7776  1 snd_intel8x0
snd_rawmidi            24704  1 snd_mpu401_uart
snd_seq_device          8040  1 snd_rawmidi
snd                    54852  11
snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore              10112  3 snd
uhci_hcd               31792  0
usbcore               111488  3 uhci_hcd
jedec_probe            14688  0
gen_probe               3744  1 jedec_probe
mtdcore                 7492  0
chipreg                 3332  1 jedec_probe
shpchp                 99724  0
pciehp                 96684  0
pci_hotplug            33680  2 shpchp,pciehp
intel_agp              19228  1
agpgart                33064  2 intel_agp
analog                 11680  0
gameport                4608  2 snd_intel8x0,analog
floppy                 59156  0
pcspkr                  3592  0
rtc                    12536  0
md                     48456  0
dm_mod                 43104  0
capability              4520  0
commoncap               7072  1 capability
loop                   16008  0
parport_pc             34368  1
lp                     10724  0
parport                40712  2 parport_pc,lp
tsdev                   7200  0
ide_cd                 42276  0
cdrom                  39008  1 ide_cd
evdev                   9408  0
mousedev               10188  1
psmouse                19720  0
ext3                  123784  1
jbd                    60504  1 ext3
mbcache                 9092  1 ext3
ide_disk               18752  3
ide_generic             1408  0
piix                   13088  1
ide_core              138872  4 ide_cd,ide_disk,ide_generic,piix
unix                   28016  906
fan                     3980  0
thermal                12688  0
processor              17296  1 thermal
font                    8352  0
vesafb                  6560  0
cfbcopyarea             3712  1 vesafb
cfbimgblt               3072  1 vesafb
cfbfillrect             3616  1 vesafb



On Sat, 4 Dec 2004 18:34:57 -0500 (EST), Jesse Chappell <jesse at essej.net> wrote:
> On Sat, 4 Dec 2004, Ben Edwards wrote:
> 
> > When I start ardour at the top is cays 'Buffer p: 87% c: 100%' and
> > when I record is sounds juttery when I play back.  I am using
> > 0.9beta19.
> >
> > Any idea why?
> 
> Those Buffer %s refer to the filling of the diskstream buffers,
> *not* cpu.  No problems there.  However, the jittery sound could
> be related to xrun issues.  You will need to provide all the
> information about your system as possible, including kernel
> version, distribution, jackd options (period size, etc), sound
> card, cpu, ram, etc.
> 
> jlc
> 
> 


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Ben Edwards - Poole, UK, England
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