SEARCH KEYWORD -- Data center


  Is Google still in China?

According to Tencent Tech, data from traffic statistics agency CNZZ shows that Google only ranks fifth in China's search engine market calculating by page views. Its market share is 2.13% in China. and although Baidu is still at the first place, its market share also declined and the its market share is less than 70%. Overall, Google's market share in China drops continuously. At the same time, Baidu also faces competition from other search engines, especially from new entrants Qihoo. Qihoo laun...

   Google,China,Market share     2013-07-05 07:12:58

  C++/CLR int to System::String^

In C++/CLR (for Microsoft), sometimes we need to convert int to System::String type or vice versa. The simple way is :From System::String^ to int int num= int::Parse(str); // System::String^ to int From int to System::String^ System::String^ str = num.ToString(); // int to System::String^For all the other data types, similar ways can be adopted....

   C++,CLR,Microsoft,System::String,Convert,int     2011-12-15 12:47:22

  The Pitfall of WebSocket Disconnections Caused by Browser Power-Saving Mechanisms

Preface Recently, while using WebSocket (WS) connections, we encountered frequent disconnection issues, occurring hundreds of times per day for a single user. Although using the auto-reconnect feature of socket.io allowed us to quickly restore connections after disconnections, it did not guarantee that every reconnection would successfully receive WS messages. Therefore, we conducted several investigations and tests. Ultimately, we identified the root cause of the issue: the browser's power-savi...

   WEBSOCKET,JAVASCRIPT,POWER SAVING,TROUBLESHOOTING     2024-06-23 01:19:39

  Testing LLM on MacOS with Llama

As a programmer, I always believe that the best way to understand something is by actually getting the hands dirty by testing it out ourselves. In past few years, with the introduction of ChatGPT, AI and associated technologies such as LLM come to a hot spot in tech industry and there are lots of platforms available and different models coming out for people to test out. This post I will demonstrate a step-by-step guide on how to run Llama(a Meta LLM) on a MacOS machine with a model. This will j...

   GUIDE,LLAMA,LOCAL,HUGGING FACE,QWEN     2024-11-17 13:36:28

  How to Find User Participants To Test Your Project

Image Source: Unsplash Recruiting the right participants is important to test your projects properly, but it's essential that your research participants are able to represent your target group, or the results won't translate into something you can use. Since recruiting for specific criteria can be time-consuming, follow these considerations that should make getting these types of user participants easier.  Sharply Define Recruitment Topic Criteria There needs to be a required criteria befo...

   USER RESEARCH,USER REQUIREMENT,TESTING     2020-08-26 07:53:28

  GoLang Interview Questions

Below lists some frequently asked GoLang interview questions and their corresponding answers based on the author's experience. The list is updated frequently with new understandings. Stay tuned. What is the GMP model of GoLang? GoLang uses goroutine to achieve concurrency and it is famous for high concurrency support as the language defines its own goroutine dispatching and processing system which is well known as GMP model. How it works is that M is normally defined as the OS thread being spawn...

   MEMORY,CONCURRENCY,INTERVIEW QUESTION,GOLANG     2024-05-25 03:08:18

  Android Security

Android is an open source mobile platform that includes an operating system, middleware and applications. Android has revolutionized the mobile world in a big way. Android, which started as an alternative to Apple’s iOS, is now slowly eating into the market share of Apple and is of primary concern to the company. Let’s have a brief introduction about android and then look into the security concerns and vulnerabilities that need to be focused on. Android Introduction: Android was deve...

   Android security,Input validation     2013-04-16 12:19:37

  A HTTPS client and HTTPS server demo in Java

In this post, I will create a HTTPS server and HTTPS client demo which can establish HTTPS communication between a server and a client using Java. This should be very useful when we want to test our understanding about SSL communication. We will use both a detailed SSL client and a simple HttpsURLConnection as the HTTPS client. Before creating the actual HTTPS server and HTTPS client, we first need to generate the keystore and truststore to be used by the server and client. To generate the keyst...

   SSL,HTTPS,JAVA,DEMO     2015-10-23 09:04:36

  Change password of postgres account in Postgres

When installing Postgres on Windows, there is some default account created for user to login. One of them is postgres, but we often don;t know what's the password for this account when we first login using this account. We need to change the password for this account. How to change it? Step 1. Modify the pg_hba.conffile Go to the /data/ and open the pg_hba.conf. # TYPE  DATABASE        USER            ...

   Postgres,password, user account     2013-03-04 01:51:02

  OT Railway System Development: How to Use PLC to Implement Land Based Railway Track Fixed Block Sign

Figure-00: Railway fixed block signaling system over view diagram, version v1.3 (2024) Project Design Purpose: This project aims to use Programmable Logic Controllers (PLC) with train detection sensors and train control signals to develop an automated OT system for railway track fixed block signaling control. The system will include a digital equivalent simulation to explain the logic of the track fixed block Automatic Train Control (ATC) mechanism for demonstration and training purposes. In th...

       2024-07-27 04:08:41

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