1. High concurrency When the system accepts high concurrency for multiple users and multiple requests, it is implemented through multi-threading. 2. Thread background processing of large tasks A program executes linearly. If the program executes a task that takes a lot of time to process, the main program will have to wait for it to […]
Tag: multithreading
Four ways to implement multithreading in Java
There are four ways to implement multithreading in Java: Inherit the Thread class Implement Runnable interface Implement the Callable interface Thread pool Below I will provide an entry-level analysis and demonstration of these four methods. 1. Inherit the Thread class The steps to implement multi-threading by inheriting the Thread class are as follows: Create a […]
Multithreading – thread pool
Thread Pool Relevant background knowledge The significance of the existence of thread pool: Using processes to implement concurrent programming is too inefficient and the tasks are too heavy. In order to improve efficiency, threads are introduced at this time. Threads are also called “lightweight processes”. Creating threads is more time-consuming than creating processes. Efficient; destroying […]
Java multithreading-thread pool ThreadPoolExecutor construction methods and rules
Why use thread pool Blog address http://blog.csdn.net/ Original address http://blog.csdn.net//article/details/71126867 Sometimes, the system needs to handle a lot of requests with short execution times. If each request starts a new thread, the system will continue to create and destroy threads. Sometimes the time spent on creating and destroying threads will be longer. It takes longer […]
Real Python multithreading is coming!
At 32 years old, Python still has no real parallelism/concurrency. However, this is about to change, as a new feature called the “Per-Interpreter GIL” is introduced in the upcoming release of Python 3.12. The release is still a few months away (expected to be released in October 2023), but the relevant code is already available, […]
Execute multithreading in java for loop
Table of Contents 1. Java uses multi-threading to speed up loop efficiency (recommended type 3!!!) ?The first type: thread pool with locking ?The second type: paging concept execution thread ?Third type: Advanced version of paging concept execution thread! ! ! ! 1. Java uses multi-threading to speed up loop efficiency (recommended type 3!!!) The first […]
python multithreading and multiprocessing
Multiple threads and multi-processes 1. What is a process and what is a thread? ? Process: A running program. Every time we execute a program, our operating system automatically prepares some necessary resources for the program (for example, allocates memory, creates a thread that can be executed. ) ? Thread: Within a program, an execution […]
Multithreading – timer
Multithreading – timer Background knowledge of timers Timer ~~ (similar to setting an alarm clock) There are usually two styles of alarm clocks: Specify a specific time to remind After specifying a specific time period, remind The “timer” here is not a reminder, but the execution of a prepared method/code. It is a commonly used […]
Multithreading (how to understand the pthread library)
In the previous section, we mainly introduced the usage of some common functions in the pthread library. In this section, we mainly analyze what the pthread library is? What is a library We mentioned before that under every Linux platform, there must be a corresponding pthread library. It exists under the path /lib64 In other […]
Understanding the thread pool in Java multithreading
1. Summary 1. The significance of the existence of threads: In concurrent programming, because using processes to program is “too heavy”, threads (“lightweight processes”) are introduced at this time. 2. Thread advantages: Creating threads is more efficient than creating processes, destroying threads is more efficient than destroying processes, and scheduling threads is more efficient than […]