Hi James,
On Sat, 31 Jul 2004 20:46:49 -0400
James Drabb <JDrabb@xxxxxxxxxxxxxxx> wrote:
> Hey group,
>
> I am runing FC2 with kernel 2.6.7-1. My system is an Athlon 2800+,
> 512MB 400MHz DDR and an ATA 133 drive. When I try to burn an audio
> file with cdrecord, the system becomes very unresponsive while the
> disk is being burnt. top show only about 2% CPU usage, yet the mouse
> is very jerky and doing any tasks during the burn are very, very slow
> (normally the system is very fast).
I've seen this too, on my machine at work. It's a P4 with HT-enabled,
and when I start cdrecord (either through k3b or through xcdroast) CPU
gets an almost constant 95+% load. Running top I can see that
ksoftirqd_CPU is the one to blame, eating a lot of CPU cycles. It is
really weird and annoying. I don't know if this is related to the fact
that I disabled ACPI and APIC on that box.
> I have a dual boot with winders XP, and if I burn an audio CD under
> windows, there is no system resonse problems at all and I am able to
> do other tasks during the burn.
Can't comment on that, that machine is pure Linux (well, it does have a
Win2k partition, but I never used that ;))
> The cdrecord command I use is:
>
> cdrecord -eject -v -pad -audio -dev=ATAPI:/dev/hdc -speed=40 file.wav
>
> Here is the info on the DVDRW drive:
>
> jim@keelie $ hdparm -i /dev/hdc
>
> /dev/hdc:
>
> Model=LITE-ON DVDRW LDW-451S, FwRev=GSB6, SerialNo=
> Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
> RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
> BuffType=unknown, BuffSize=0kB, MaxMultSect=0
> (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
> IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes: pio0 pio1 pio2 pio3 pio4
> DMA modes: mdma0 mdma1 mdma2
> UDMA modes: udma0 udma1 *udma2
> AdvancedPM=no
> Drive conforms to: device does not report version:
>
> * signifies the current active mode
In case it helps, mine is:
/dev/hdc:
Model=HL-DT-ST GCE-8525B, FwRev=1.03, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no
* signifies the current active mode
Best,
Andre
--
Andre Oliveira da Costa
