DOCUMENT:Q101771  26-JUL-1993  [W_NT]
TITLE   :How Threads Are Scheduled on SMP Computers
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:
 
 - Microsoft Windows NT operating system version 3.1
 - Microsoft Windows NT Advanced Server version 3.1
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On a symmetric multiprocessor (SMP) computer, the highest priority
thread is always active. When more than one processor exists, the
highest priority threads are always active, running exclusively on the
extra processors. Low priority threads share a single processor. For
example, if there are three processors, the two highest priority
threads run on two processors, while all remaining threads run on the
remaining processor.
 
Note: Processor affinity is not exposed in the Win32 subsystem, and
therefore does not affect this scheduling scheme.
 
Additional reference words: 3.10
KBCategory:
KBSubCategory: SYMPROC

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