Daemon is a special process that runs in the background. It is independent of the controlling terminal and periodically performs some kind of task or waits for some event to occur. A daemon is a very useful process. Most servers in Linux are implemented as daemons. For example, Internet server inetd, Web server httpd, etc. At the ...
Posted by DotSPF on Sun, 13 Nov 2022 20:11:32 +0300
1. Use of standard CRUD
What are the standard CRUD functions and what methods are provided by MyBatisPlus?
Let's look at a picture first:
1.1 Environment Preparation
The environment used here is Java development learning (forty) ---- MyBatisPlus entry case and introduction environment used in
Before adding new ones, we can analy ...
Posted by HERATHEIM on Sun, 13 Nov 2022 17:41:48 +0300
Reprinted: Akka concurrent programming design
2. Responsive system design
Akka is known to be a reactive platform, more specifically, it is part of the Typesafe reactive platform. The Reactive Manifesto contains 4 principles or design goals: agility, scalability, fault tolerance, and event-driven design.
1.CubeMX build project
1.1 Configure RCC (open external clock), SYS (select debug interface)
1.2 Configure GPIO (PC13 is used to light up LED lights)
1.3 Configure USART1 (serial port output)
1.4 Save, generate project file
Since the above steps are relatively simple and not shown, if you forget, you can refer to my other articles:
Posted by dunnsearch on Sun, 13 Nov 2022 12:09:00 +0300
Article directoryPython massive data generation and processingOverviewGenerate 100 million pieces of datadirect read testDownload DataView the occupied memory size:Determine the maximum number of repetitionsGenerate 1 billion pieces of datadirect read testDownload DataLoad data in chunksLoad statistics for each blockGet the value of the number ...
Posted by fleabay on Sat, 12 Nov 2022 14:57:48 +0300
This article mainly explains the construction of the recommendation system process, which mainly includes two parts: Offline and Online.OfflineThe offline part mainly performs offline calculation based on the previously stored material portraits and user portraits, and provides each user with a list of popular pages and recommended pages and ca ...
Posted by unklematt on Fri, 11 Nov 2022 12:48:10 +0300
1.MongoDB tool command
MongoDB is the main daemon of the MongoDB system. It handles data requests, manages data access, and performs background management operations. The startup process specifies a configuration file that controls database behavior.
For "MongoDB Shard", Mongos is a routin ...
Posted by logging on Thu, 10 Nov 2022 21:51:01 +0300
Day13. Sliding window maximum value, top K high frequency elements
0239. Sliding window maximum
Link: 0239. Sliding window maximum
Monotonic queue: The queue is monotonic. In order to maintain this monotonicity, when adding elements to the tail of the queue, if the previous element and the current element do not satisfy the monotonic relatio ...
Posted by papacostas on Thu, 10 Nov 2022 19:11:56 +0300
gives you an array of distinct integers, where locations[i] represents the location of the ith city. At the same time, it gives you start, finish and fuel, which respectively represent the departure city, destination city and the total amount of gasoline you have initially.
In each step, if you are in city i , you can choose any city j such th ...
Posted by neonorange79 on Thu, 10 Nov 2022 01:19:00 +0300
5.4 Handwritten Digit Recognition Experiment Based on Residual Network
Residual Network (ResNet) is a way of adding directly connected edges to nonlinear layers in neural network models to alleviate the problem of gradient disappearance, thereby making it easier to train deep neural networks. In the residual network, the most basic unit is th ...
Posted by agsparta on Wed, 09 Nov 2022 21:02:41 +0300