Disk fault tolerance means that data integrity and data processing capabilities can be guaranteed when a hard disk error or hard disk failure occurs in the subsystem. The RAID control card implements this function on RAID 1, 5, 6, 10, 50, and 60 through redundant hard disk groups. In RAID 1, since the data is […]
Tag: key
MySQL Lecture 5·About foreign keys and connections, how to achieve related queries?
Hello, I am safe and sound. Article directory Foreign keys and joins: how to do related queries? How to create foreign key? connect Misunderstandings in related queries Foreign keys and connections: How to do related queries? In the actual database application development process, we often need to associate two or more tables to obtain the […]
DDL (data definition) language in SQL: Key skills to master data definition language!
“Here is Cloud Source IT, helping you learn IT easily” Hi~ How are you doing today? The process of getting better is not very comfortable. Try harder – 2023.11.03 – DDL (Data Definition Language) is a language used to describe real-world entities to be stored in a database. Previously, we introduced the related concepts and […]
Do you know the underlying principle of the synchronized keyword?
Synchronized [Object Lock] uses a mutually exclusive method so that at most one thread can hold the [Object Lock] at the same time. Other threads will be blocked when they want to acquire this [Object Lock]. The code for grabbing tickets is as follows. If it is not locked, it will be oversold or one […]
Unexpected key(s) in state_dict: “module.backbone.bn1.num_batches_tracked“
Unexpected key(s) in state_dict: “module.backbone.bn1.num_batches_tracked” When using PyTorch for deep learning model training and inference, we often use ??state_dict?? to save and load model parameters. However, sometimes when we try to load the saved state_dict, we may encounter the error “Unexpected key(s) in state_dict” and indicate the error key name. This article explains the causes […]
Escape Analysis: The secret key to unlocking performance!
High-quality blog posts: IT-BLOG-CN Interviewer pitfall: Do newly created objects in Java necessarily allocate memory on the heap? If your answer is “Yes” then you need to read this article. 1. Introduction Escape Analysis Escape Analysis: It is a very important JIT optimization technology, used to determine whether the object will be accessed outside the […]
Steam account switcher based on AutoHotkey
1. Interface display home page tray page 2. Principle and implementation Step 1: Obtain account information Read the loginusers.vdf login information file in the config folder under the Steam installation path to obtain the account name, nickname, offline status, and login time information. The file is as follows: Step 2: Write the logged in user […]
The input.conf configuration of the mpv player solves the problem that the arrow keys fast forward and rewind are invalid (always jump to key frames)
The key is LEFT no-osd seek -5 exact #arrow key left back RIGHT no-osd seek 5 exact #Direction key right forward To write no-osd and exact, the input.conf found online are all cliches and nonsense, and these two keywords are not written. mpv.conf ##Decoding/Rendering Settings## #Video output driver, Windows can choose gpu/gpu-next/direct3d, etc., gpu is […]
Guide to the <head> element in HTML: Detailed analysis of key knowledge points and best practices to help you optimize the head of your web page!
Recommended minimum value The following are the basic elements of any web document (website/application): <meta charset=”utf-8″> <meta name=”viewport” content=”width=device-width, initial-scale=1″> <!– The above 2 meta tags *must* come first in the <head> to consistently ensure proper document rendering. Any other head element should come *after* these tags. –> <title>Page Title</title> meta charset– defines the encoding […]
Electronic keyboard design based on 51 microcontroller
Electronic keyboard design based on 51 microcontroller (Simulation + Program + Schematic + Design Report) Function introduction Specific functions: 1. Use the eight keys 1, 2, 3, 4, 5, 6, 7, and 8 of the keyboard to produce 8 different tones. 2. There are 3 buttons that can play 3 songs respectively. 3. Song titles […]