What is TppWorkerThread?

TppWorkerThread() is the entrypoint for a thread-pool thread. When I set a breakpoint with Debug > New Breakpoint > Function Breakpoint on this function.

What is RtlUserThreadStart?

RtlUserThreadStart is otherwise a Windows function you’ll always see back in an unmanaged stack trace, that’s how a thread gets started. This is all entirely normal. The only other info worth of note is this answer posted by a Microsoft employee: answered Jun 28 ’12 at 12:59.

What happens if I delete Ntdll dll?

You should never delete your ntdll. dll file, as it’s an integral part of your Windows operating system and is called by many programs and processes. If your ntdll. dll file becomes damaged or corrupted it’s possible your operating system will freeze, become unstable and completely stop working.

What is the main purpose of Ntdll?

NTDLL is the user-mode face of the Windows kernel to support any number of application-level subsystems. In the Win32 subsystem, which accounts for far and away the greatest number of Windows executables in ordinary use, the lowest layer is provided by such modules as KERNEL32.

How do I check threads?

How do I Find Threads on a Computer?

1. Press “Ctrl,” “Shift,” and “Esc” on your keyboard at once and let the three keys go. This brings up the task manager.
2. Select the “Processes” tab. Click “View” and click “Select Columns.”
3. Select “Threads” and click “OK.”
4. Scroll to the right until you reach a column called threads.

How do I know how many threads I have used?

Resolution

1. Open Task Manager.
2. Select Performance tab.
3. Look for Cores and Logical Processors (Threads)

Can I delete Ntdll dll?

What is NT layer?

The Windows NT hardware abstraction layer, or HAL, is a layer between the physical hardware of the computer and the rest of the operating system. It was designed to hide differences in hardware and provide a consistent platform on which the kernel is run.

How many threads can a core have?

A single CPU core can have up-to 2 threads per core. For example, if a CPU is dual core (i.e., 2 cores) it will have 4 threads. And if a CPU is Octal core (i.e., 8 core) it will have 16 threads and vice-versa.

How many threads does a core of Xeon have?

One thread per core on the Intel Xeon Phi processor will give the highest performance per thread. When the number of threads per core is set at two or four, the individual thread performance may be lower, but the aggregate performance will be greater.

How many threads can run on a single core?

Each processor has 10 cores, each core being basically equivalent to a classic single-core CPU on its own. Each core can only run 1 thread at a time, i.e. hyperthreading is disabled. So, you can have a total maximum of 20 threads executing in parallel, one thread per CPU/core.

What does ntdll.tppworkerthread do in Windows 10?

Programs which execute in less than 30 seconds will appear to hang due to ntdll!TppWorkerThread waiting for the idle timeout before the process terminates. ntdll!LdrpWorkCallback is registered as the thread pool work callback function. When work is available, the worker thread will call ntdll!LdrpWorkCallbac k which calls ntdll!LdrpProcessWork.

What does NTDLL.DLL do in the thread wrapper?

Ntdll.dll is responsible for its own internal accounting inside the worker thread wrapper ( TppWorkerThread) before calling the worker callback that the application has registered. By looking at the Wait reason in the State information for each thread, you can get a rough idea of what each worker thread may be doing.

What does NTDLL ldrinitializethunk do in Windows 10?

The initial thread in the process executing ntdll!LdrInitializeThunk will be referred to as the master thread. Threads created by the master thread in the thread pool will be referred to as worker threads. ntdll!LdrpInitParallelLoadingSupport and ntdll!LdrpCreateLoaderEvents are called to initialize the following structures:

How is the work queue defined in NTDLL?

The work queue is defined by ntdll!LdrpWorkQueue which is a doubly linked list (LIST_ENTRY) of an opaque structure, LDRP_LOAD_CONTEXT.