The Process Threads grid shows current information about the threads executed by the selected process.
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Instance

The instance name of the thread.

Thread ID

The unique identifier of the thread.

% CPU

The percentage of CPU elapsed time that the thread has used in order to execute instructions.

% User

The percentage of elapsed time that the thread has spent executing code in user mode.

% Kernel

The percentage of elapsed time that the thread has spent executing code in privileged mode.

Elapsed time

The total elapsed time the thread has been running.

Switches/sec

The rate of switches from one thread to another.

Thread State

The current state of the thread (Ready, Running or Waiting).

Thread Wait Reason

This is applicable only when the thread is in the waiting state, and shows the reason why the thread is waiting.