SpringMVC execution process: 1. The user sends a request to the front-end controller DispatcherServlet 2. DispatcherServlet receives the request and calls the processor mapper HandlerMapping. 3. The processor mapper finds the specific processor according to the request URL, generates the processor execution chain HandlerExecutionChain (including the processor object and processor interceptor) and returns it to […]
Tag: proc
Redis uses Pipeline (pipeline) batch processing
Redis batch processing During development, it is sometimes necessary to process large batches of Redis. For example, Redis queries multiple Hash in batches. If you query one by one in a for loop, the performance will be very poor. In this case, you can use Pipeline. Pipeline Pipeline can send multiple commands at once and […]
[Linux Process Control (3)] Process Program Replacement–How to implement a bash interpreter yourself?
Blogger CSDN homepage:Hangdian Code Farmer-NEO ? ?Column classification:Linux from entry to proficiency? ? Code Warehouse: NEO’s Learning Diary ? Follow meTeach you more operating system knowledge ? Process program replacement 1 Introduction 2. Understanding of exec series functions 3. execl series functions 4. execv series functions 5. Usage scenarios of program replacement 6. Implement a […]
The entire process of publishing an iOS app developed with uni-app to the App Store
1.0.3 20200927 Update the official status of the app review process. Note: The latest review will be followed up by synchronizing another record in the community with AppStore review rejection reasons and solutions. : Apple development and listing FAQ | appuploader usage tutorial 1.0.2 20200925 Added measures to resolve rejection emails for the first time. […]
Digital modeling experience-data processing-pandas
Digital analog experience-data processing-pandas Detailed explanation of the code: will be added next time import pandas as pd import numpy as np # # Set panda display function # pd.set_option(‘display.max_columns’, 10) # pd.set_option(‘display.max_rows’, 100) # pd.set_option(‘display.width’, 100) Series basic operations obj=pd.Series([4,7,-5,3]) obj 0 4 1 7 2-5 3 3 dtype: int64 obj.values array([ 4, 7, […]
Python multi-process & multi-threading
Multi-tasking Concurrency: executing multiple tasks alternately over a period of time Parallelism: Colleagues perform multiple tasks together over a period of time Process Process Process: A program running on the system is called a running process, and a process ID is assigned to facilitate system management. The basic unit of the operating system for resource […]
[Linux] Stop 14: Process Priority
Article directory 1. How to design various structures of the Linux kernel 2. Process priority 1. Basic concepts 2.What is 3. Why should there be priority? 4. Batch annotation operations 5. Check priorities 6.PRI and NI 3. Bitmap and priority 1. How to design various structures of the Linux kernel The data structures we wrote […]
Node.js builds web server, interface configuration, parameter format and garbled code processing
Node.js Overview Node.js is not a new programming language, nor is it a JavaScript library, but a JavaScript running environment, and it is also the second running environment for JavaScript outside of the browser. We can run all the features of ES6 on node.js without worrying about any compatibility issues. In addition to its good […]
[Open Source Project] Research on snakeflow process engine
Project address https://gitee.com/yuqs/snakerflow https://toscode.mulanos.cn/zc-libre/snakerflow-spring-boot-stater (recommended) https://github.com/snakerflow-starter/snakerflow-spring-boot-starter Common API Deployment process processId = engine.process().deploy(StreamHelper. getStreamFromClasspath(“test/task/simple/leave.snaker”), null, 10001L); Create process instance Order order = engine.startInstanceById(processId, “1”, args); Perform tasks List<Task> tasks = engine.executeTask(activeTasks.get(0).getId(), “1”); Get a person’s tasks that require approval List<Task> activeTasks2 = engine.query().getActiveTasks(new QueryFilter().setOperator(“admin”)); Leave process xml configuration <process displayName=”Leave process test” instanceUrl=”/snaker/flow/all” name=”leave”> <start […]
08 Case | Shmem: The process does not consume memory, where does the memory go?
In the previous lesson, we talked about the leakage of process heap memory and the harm of OOM caused by memory leaks. In this lesson, we will continue to talk about other types of memory leaks, so that when you find that the system memory is getting less and less, you can think of what […]