CPU load pri praci s CDROM mechanikama

[Jirka Slaby]

Zdravim,
mam nasledujici problem. Mam PIII 450Mhz, 256 MB RAM, MB Abit BE6-II CD-ROM
SONY IDE a CD-RW LG IDE. Obe mechaniky pripojeny na primarni a sekundarni
IDE ATA33 radic. Kdyz pristupuju na machaniky tak to strasne vytezuje CPU.
Treba pri grabovani audia z ty Sony mechaniky to dela cca 85% - 95% CPU
load takze zacne nekdy trhat KDE, vynechava v pozadi hrajici mp3 atd. To
same se deje kdyz vypaluju. Pri vlastnim zapisu na CD nedokaze ani hrat
mp3(preskakuje, vynechava). Kuli otestovani sem si nainstaloval WinXP ale
zde vse bezi normalne a tak vim ze pocitacem ani HW to nebude. Zkusenost mi
rika, ze takto se chova mechanika kdyz je na PIO modu, tak jsem zacal
zkoumat a ponastavoval veci typu hdparm takze tedka vystup z hdparm vypada
takto:

/dev/cdrom:
 HDIO_GET_MULTCOUNT failed: Invalid argument
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  1 (on)
 readahead    =  8 (on)
 HDIO_GETGEO failed: Invalid argument

/dev/hda:
 multcount    = 16 (on)
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    =  8 (on)
 geometry     = 3467/255/63, sectors = 55704096, start = 0

pripadne i 

/dev/hda:
 multcount    = 16 (on)
 IO_support   =  1 (32-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    =  8 (on)
 geometry     = 3467/255/63, sectors = 55704096, start = 0

/dev/cdrom:
 HDIO_GET_MULTCOUNT failed: Invalid argument
 IO_support   =  1 (32-bit)
 unmaskirq    =  0 (off)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly     =  1 (on)
 readahead    =  8 (on)
 HDIO_GETGEO failed: Invalid argument

vse pouziva DMA takze zde nevidim problem. Ale vsechna nastaveni delaji to
same. Nevite nekdo kde je zakopan pes?

Jeste prilozim detailni pipis mechaniky CDROM :

/dev/cdrom:

 Model=SONY CD-ROM CDU5221, FwRev=0.30, SerialNo=MT1199-A Firmware
 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=on/off, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:150}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 *udma2
 AdvancedPM=no

Jinak pouzivam Mandrake 9.1 ale uz vim o dalsim kolegovi ktery ma stejny
problem ale ten provozuje jak Mandrake tak i Gentoo linux a na obou je to
stejne.

diky vsem

Jirka