[PlanetCCRMA] Were's the weak link?

[Rick B]

Sorry for the top post but I accidentally pressed the Outlook Exp (in
vmware) icon by mistake. OK, you have a lot of things on irq 11 including
your sound card. Can you try moving it to a different slot on the
motherboard? Is there a way to allocate irq's in your bios?

                    Rick B

----- Original Message ----- 
From: "Ken Dawson" <dawsonwu@rahul.net>
To: <planetccrma@ccrma.Stanford.EDU>
Sent: Friday, January 19, 2007 1:43 PM
Subject: Re: [PlanetCCRMA] Were's the weak link?


> Did you remember to shut off removable media auto-mount probing?
>
> /ken
>
> linuxmedia4@netscape.net wrote:
> > Hi,
> >
> > I installed the Indigo IO card on my FC5/CCRMA system. I've done
> > everything I could think (or was suggested) to optimize my system to
> > allow for smooth, uninterrupted recording, including buying a 7200rpm
> > drive, tunning my hard disk, trying different 'Frames/Period' and
> > 'Periods/Buffer' settings in qjackctl. I read several articles about
> > IRQs but haven't changed anything in relation to IRQs because I was
> > under the impression that FC5/CCRMA has a program that reorders the IRQs
> > so the sound card is favored. But any input on IRQs (or anything) is
> > welcome.
> >
> > I'm running ecasound and jackd (both with realtime priorities). When
> > recording or in playback, sometimes I hear disruptions, but they don't
> > always end up in the actual recording. But there are *always* a few
> > noticeable pops, clicks or the (rare) loss of data in the actual
> > recorded audio files.
> >
> > Can anyone spot where the "weak link" is in my system. I put in this
> > post (what I believe) is the most relevant information...
> >
> > My system...
> > Dell Precision M50 laptop
> > 2 GHz Processor
> > 1 Gig Ram
> > 2.6.16-1.2080.16.rrt.rhfc5.ccrma
> > 7200rpm hard drive
> >
> > 'cat /proc/interrupts' shows:
> >
> >   0: 3945911  XT-PIC [........N/  0]  pit
> >   1:    2898  XT-PIC [........./  6]  i8042
> >   2:       0  XT-PIC [........N/  0]  cascade
> >   5:   16931  XT-PIC [........./  0]  Intel 82801CA-ICH3 Modem, Intel
> > 82801CA-ICH3
> >   7:       4  XT-PIC [..P....../  0]  parport0
> >   8:       1  XT-PIC [........./  0]  rtc
> >   9:       2  XT-PIC [........./  0]  acpi
> >  11:    8900  XT-PIC [........./  0]  yenta, yenta, yenta, pcmcia2.0,
> > Indigo IO, uhci_hcd:usb1, uhci_hcd:usb2, ohci1394
> >  12:   78714  XT-PIC [........./  6]  i8042
> >  14:   74419  XT-PIC [........./  1]  ide0
> > NMI:       0
> > LOC:       0
> > ERR:       0
> > MIS:       0
> >
> > '/sbin/hdparm /dev/hda' shows...
> >
> >  multcount    = 16 (on)
> >  IO_support   =  3 (32-bit w/sync)
> >  unmaskirq    =  0 (off)
> >  using_dma    =  1 (on)
> >  keepsettings =  0 (off)
> >  readonly     =  0 (off)
> >  readahead    = 256 (on)
> >  geometry     = 16383/255/63, sectors = 117210240, start = 0
> >
> > (3 reads of) 'hdparm -Tt /dev/hda'...
> >
> > /dev/hda:
> >  Timing cached reads:   1368 MB in  2.00 seconds = 683.60 MB/sec
> >  Timing buffered disk reads:  112 MB in  3.03 seconds =  36.93 MB/sec
> > /dev/hda:
> >  Timing cached reads:   1368 MB in  2.00 seconds = 682.87 MB/sec
> >  Timing buffered disk reads:  120 MB in  3.02 seconds =  39.68 MB/sec
> > /dev/hda:
> >  Timing cached reads:   1368 MB in  2.00 seconds = 683.64 MB/sec
> >  Timing buffered disk reads:  120 MB in  3.02 seconds =  39.75 MB/sec
> >
> > Thanks,
> > Rocco
> >
> > _______________________________________________
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> > PlanetCCRMA@ccrma.stanford.edu
> > http://ccrma-mail.stanford.edu/mailman/listinfo/planetccrma
> >
>
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