cdrecord performance

[James Drabb]

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 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.

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 at 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


Thanks for any help,

Jim Drabb
Senior Programmer
Davenport, FL USA