Yitzchak Scott-Thoennes wrote:
On Fri, Jun 11, 2004 at 05:42:38AM -0700, Brian Dessent wrote:
reserved for real-time processes. The remaining range 1-15 are the regular (dynamic) priorities that most processes run with. In reality you don't set the priority directly this way, rather you choose a priority class (realtime, high, normal, idle; corresponding to 24, 13, 8, 4) and then a modifier (highest, above normal, normal, below normal, lowest; corresponding to +2, +1, 0, -1, -2).
Is that correct? Shouldn't idle be 3 to allow the full 1-15 range?
According to sysinternals' Process Explorer, idle is indeed 4. I haven't double checked with anything on MSDN but I don't see why it would not be displaying the correct thing, given that it shows the priority on the 0-31 scale for every process so it must be using the NTDLL level calls.
Hmm, that's pretty complex way to do things:
There is actually three levels: Background/Foreground process, base priority, and then special "thread priority" that has seven more modifiers.
Complete text can be found at:
<http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/scheduling_priorities.asp>
--
Jani Tiainen
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