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SubjectRe: Main CPU- I/O CPU interaction
On Mon, Jan 03, 2005 at 12:44:36AM +0000, tony osborne wrote:
> The I/O devices are equipped with dedicated processor to free the main CPU
> from doing the low level I/O operations. However, if i am editing and
> updating a big size file and i want to save
> it afterwards, i notice my PC getting blocked while saving the file which
> theoritically should NOT happen as it is up to the I/O device processor and
> not the main CPU to save the data into the disk; the main CPU could switch
> to another process after giving the high level command -save-to the device
> processor; so why the main CPU is blocked while saving such big size files

Martin Waitz
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