Why is IOCTL_CDROM_READ_TOC so slow?
Waldeck Schutzer
schutzer at math.rutgers.edu
Wed Jan 29 01:42:02 CST 2003
I just realized that IOCTL_CDROM_READ_TOC is used almost everywhere in
mcicda and somewhere else, but on the other hand it is as fast as a
snail. A 68-track CD took 10 minutes to scan in cdplayer and if you
press play, another 10 minutes will pass before it even starts playing!
It appears to be a good idea to cache the TOC somewhere, but where and how?
Best,
Waldeck
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