why CDROM operations cause system to be slow and HD operations do not

[Dmitry Mityugov]

On 7/13/05, Yuri <yuri at tsoft.com> wrote:
> When I read something from CDROM my system gets visibly slow and HD
> reads/writes do not have the same effect.
> 
> I think they both should have similar effect on system performance since
> multiple requests should just wait till completion interrupt and other
> processes shouldn't be affected.

Is DMA enabled on both the HD and CDROM?

-- 
Dmitry

"We live less by imagination than despite it" - Rockwell Kent, "N by E"