Re: Number of Procs

["Gian Uberto Lauri" <saint@eng.it>]

Darac Marjal writes:
 > On Wed, Jan 08, 2014 at 11:40:36AM -0200, Hudson Flavio Meneses Lacerda wrote:

Sorry, but this paragraph needs a couple of "label" corrections

 > "Cooperative Multitasking".

Sorry,  the label  here is  "Preemptive"  (*), according  to your  own
expaination :).

 > One process will be given some time on a processor and then, after
 > a period of time or when that process yields control of the
 > processor

Is not the process that yelds, it's the kernel that assigns the CPU to
another process, as you correctly explain below.

 > (for example, if the process is waiting for
 > data to come from a disk, then there's nothing for the CPU to do), the
 > kernel will suspend that process and pick another one. The choosing of
 > when to switch processes and which processes to pick when several are
 > wanting the CPU, is performed by the scheduler.

In "coopeartive multitasking" a process  helds the CPU control as long
as he wishes (Windows 3.11, old Mac OS, Java Green Threads).

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