High CPU load burning audio CDs

[Rüdiger Greeb <rg@cosiworld.de>]

Hello list,

when burning audio CDs in DAO or TAO mode there is a high CPU load in 
hardware interrupts.
When burning the audio CDs in RAW mode this high load cannot be observed.

My stats:
Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg 
Schilling
cdrecord: Warning: Running on Linux-2.6.9-gentoo-r13
Hardware is an Athlon XP2200+ & NEC ND1300A

Writing a 45 minutes audio CD from wav files at 10x speed

top shows:

in DAO mode:
50% idle
45% hi
3% user
2% system

in RAW mode:
96% idle
0% hi
3% user
1% system

Initial information for this bug:
http://bugs.kde.org/show_bug.cgi?id=95509
http://sourceforge.net/mailarchive/forum.php?thread_id=6260166&forum_id=1927

Can anyone (Jörg?) tell if this is caused by cdrecord (the same problem 
has been reported for cdrdao) or if it's a bug in the kernel?

Regards
Rüdiger

Attachment: dao.log.gz
Description: application/gzip

Attachment: raw.log.gz
Description: application/gzip