Why is IOCTL_CDROM_READ_TOC so slow?

[Eric Pouech]

Waldeck Schutzer wrote:
> Hi Eric,
> 
> It is very strange indeed, but I just tested it again and I'm convinced 
> that on my system that call can take a few seconds. I'm also pretty sure 
> there is no concurrent access to the drive and automount is not running. 
> I even did this on a failsafe session just to be sure, but still the 
> same thing. 
maybe you could try it with a simple C program:
1/ open fd
2/ do the read toc ioctl
3/ close
time the operation 2/

 > I wonder there is something wrong with my kernel (2.4.18),
> or worse, with my computer. On the other hand, it works pretty fast on 
> Windows.
rather strange... I reran on my computer win98 cdplayer, and 
everything's ok.
I wonder if the CD ROM driver in Linux is not to blame then

A+
-- 
Eric Pouech