priority and IRQL

NTDEV
1

Hi all:
Can you tell me what the relationship between thread priority and IRQL? Why my thread created by PsCreateSystemThread ocuppied all the CPU?
Best Regards!
Kamasamikon. Y
(???r??z{e?˛???m?m?{]z???&j)@u?Ӣ?칻?&ޱ??i?Z?G?j)m?W???u?칻-E?"?Ǧm??(Z?X???,??&

2

A priority is a mechanism implemented in the Windows NT dispatcher to decide which thread should run next. An IRQL is an interrup priority. When the system is running at any IRQL > PASSIVE_LEVEL every user mode thread (even the highest priority thread) is interrupted to allow the execution of the operation running in the IRQL > PASSIVE_LEVEL.

Matteo
----- Original Message -----
From: Kamasamikon
To: NT Developers Interest List
Sent: Thursday, March 22, 2001 10:37 AM
Subject: [ntdev] priority and IRQL

Hi all:
Can you tell me what the relationship between thread priority and IRQL? Why my thread created by PsCreateSystemThread ocuppied all the CPU?
Best Regards!
Kamasamikon. Y
b???v?j?vz+S???ޱ??i?Z?G?j)m?W???u???^P?-??+

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