Priority Levels

[Guest Student]

How many levels of priority are there in MS Windows OS?

 

I think it is 32. I just wanted to confirm

--

Student

[Guest Galen]

Re: Priority Levels

 

My reply is at the bottom of your sent message.

 

In news:0962E6F7-F50F-4E1B-BCCA-5E7D5D3344D2@microsoft.com,

Student <Student@discussions.microsoft.com> typed:

 

> How many levels of priority are there in MS Windows OS?

>

> I think it is 32. I just wanted to confirm

 

I believe you are correct but...

 

A quick search turned this up:

 

Kim: INtime's kernel is derived from the grandfather of all RTOSs, iRMX from

Intel. Having been in use prior to MS-DOS, no other RTOS technology has been

tested and refined to operate PC hardware with higher precision and

protection. Upon generating the system, INtime resides in its own virtual

machine protected from anything going on associated with the Windows

operating system. As a fully protected operating system itself, your

INtime-based real-time application also runs fully protected from all other

processes as well.

 

I know of no other solution that provides this level of protection and

reliability in addressing deterministic control issues with Windows XP

systems, and none that is as extensible as INtime. Using INtime, you are

free to add up to 8000 objects to your real-time application. This can allow

for the most sophisticated and taxing system conceivable, all with higher

priority than anything occurring on the Windows side. INtime features

numerous dedicated real-time interfaces including a TCP/IP stack, USB, a

wide variety of industrial control interfaces, and COM drivers. The

operating system supports 256 levels of priority, round-robin scheduling,

and interrupt support, all as services accessible from your user-mode

real-time code.

 

--

Galen

 

My Geek Site: http://kgiii.info

Web Hosting: http://whathostingshould.be

 

"It is a capital mistake to theorize before you have all the evidence. It

biases the judgment." - Sherlock Holmes

[Guest Daniel Martín [MVP]]

Re: Priority Levels

 

You're referring to thread priority levels, I suppose.

 

Yes, there are 32 priority levels, from 0 (lowest) to 31 (highest priority).

 

There is a lot of literature on Windows scheduling at the Microsoft website.

For example, I've found this link:

 

Scheduling Priorities

http://msdn.microsoft.com/en-us/library/ms685100.aspx

 

--

Regards,

Daniel Martín

Microsoft MVP Windows Desktop Experience

 

 

"Student" <Student@discussions.microsoft.com> wrote in message

news:0962E6F7-F50F-4E1B-BCCA-5E7D5D3344D2@microsoft.com...

> How many levels of priority are there in MS Windows OS?

>

> I think it is 32. I just wanted to confirm

> --

> Student