This enumeration specifies the reason a thread is waiting. VirtualMemory indicates that a thread is waiting for virtual memory to be allocated, and PageIn and PageOut indicate that a thread is waiting for virtual memory to page in or out, respectively. FreePage is for threads waiting for a free virtual memory page. EventPairHigh and EventPairLow signal that the thread is waiting on events. LpcReceive indicates that a thread is waiting for a local procedure call, and LpcReply means that it is waiting for a reply to a local procedure call. If thread execution has been suspended or delayed, you will see either Suspended or ExecutionDelay. SystemAllocation means that the thread is waiting for a system allocation, and Executive indicates that it is waiting for the scheduler. Unknown is for when the operating system cannot report why a thread is waiting.

public enum ThreadWaitReason {
   Executive = 0,
   FreePage = 1,
   PageIn = 2,
   SystemAllocation = 3,
   ExecutionDelay = 4,
   Suspended = 5,
   UserRequest = 6,
   EventPairHigh = 7,
   EventPairLow = 8,
   LpcReceive = 9,
   LpcReply = 10,
   VirtualMemory = 11,
   PageOut = 12,
   Unknown = 13
}

Hierarchy

System.Object System.ValueType System.Enum(System.IComparable, System.IFormattable, System.IConvertible) ThreadWaitReason

Returned By

ProcessThread.WaitReason