MultiThread

In this video, he shows how multithreading runs on physical(Intel or AMD) processor cores.

https://youtu.be/ecKWiaHCEKs

and

is python capable of running on multiple cores?

All these links basically say:
Python threads cannot take advantage of many physical cores. This is due to an internal implementation detail called the GIL (global interpreter lock) and if we want to utilize multiple physical cores of the CPU we must use true parallel multiprocessing module

But when I ran this below code on my laptop

Im trying to create a multithreaded namedpipe server as outlined in the msdn sample here https://docs.microsoft.com/en-us/windows/win32/ipc/multithreaded-pipe-server but Im trying to restrict the namedpipe to access by adminstrators group members only.

The example works correctly when no SECURITY_ATTRIBUTES structure is specified but when an SA is specified the first call is successful, but following calls to CreateNamedPipe fail as long as the first pipe is listening or communicating with a client. The create call fails, usually with ACCESS_DENIED, but sometimes with error 1305 The revision level is unknown. When the first pipe closes due to client disconnecting the following call will be successful for the next createnamedpipe call but will in turn fail once that pipe has a client.

I have tried multiple values for the grfInheritance field with no avail. This is my first adventure into explicitly specifying SECURITY so forgive me if I have missed something obvious. Note that in the Function that calls createnamedpipe I create a new SA structure with each create attempt but I have also tried creating one and sharing it outside the create loop.

Relevant code follows:

function that creates the pipe:

Hello i have a csv with about 2,5k lines of outlook emails and passwords

The CSV looks like

header:

username, password

content:

test1233@outlook.com,123password1

test1234@outlook.com,123password2

test1235@outlook.com,123password3

test1236@outlook.com,123password4

test1237@outlook.com,123password5

the code allows me to go into the accounts and delete every mail from them, but its taking too long for 2,5k accounts to pass the script so i wanted to make it faster with multithreading.

This is my code:

I am having trouble understanding how to get simple multi-threading to work in python. Here is a simple script I have written in python that should simultaneously write to two different files:

Now i have List of ProductDTO, and Product.

This list can contains 100 objects, and can also contains 1m of objects.

This list i am reading from csv file.

How i am filtering it now:

I'm making a program that you can draw in and when there are more than 38000 _points it starts to lag.

here's the code:

I am new to handling multiprocessing, multithreading etc.. in python.

I am trying to subscribe to multiple Websocket streams from my crypto exchange (API Docs Here), using multiprocessing. However, when I run the code below, I only receive ticker information, but not order book updates.

How can I fix the code to get both information?
What is the reason that only one websocket seems to be working when it's run on multiprocessing?

(When I run the functions ws_orderBookUpdates() and ws_tickerInfo() separately, without using multiprocessing, it works fine individually so it is not the exchange's problem.)

I'm trying to import contacts using RunspacePools, but I'm having trouble getting it to work. If I take it out of the runspace logic, it works fine, just takes a long time. I'd really like to use runspacepools to speed up the import process and make it run multithreaded so it imports faster. On avg each import takes about 5-6 mins per user, and I have about 500 users, so it can take up to 3000 mins to run.

Here is what I currently have:

I have a multithreaded program and eacch thread focuses on its own work. When a thread finishes its work, it will drive the event to the main thread.

So I want to use the pthread condition variable to implement the idea (i.e. pthread_cond_t and pthread_mutex_t). The data structure will be like: