SEARCH KEYWORD -- High efficient


  How Kafka achieves high throughput low latency

Kafka is a message streaming system with high throughput and low latency. It is widely adopted in lots of big companies. A well configured Kafka cluster can achieve super high throughput with millions of concurrent writes. How Kafka can achieve this? This post will try to explain some technologies used by Kafka. Page cache + Disk sequential write Every time when Kafka receives a record, it will write it to disk file eventually. But if it writes to disk every time it receives a record, it would ...

   BIG DATA,KAFKA     2019-03-08 09:42:57

  Why MySQL 8 drops support of query cache

Many of you may have heard or used MySQL's query cache, because it used to be a popular way to improve MySQL's performance. As an important feature for improving MySQL's performance, the query cache was often recommended as a solution for slow queries. However, why has MySQL 8 abandoned the query cache? Today, we will analyze and explore this decision. What is query cache? According to official document: The query cache stores the text of a SELECT statement together with the correspon...

   MYSQL 8,QUERY CACHE     2023-03-11 09:05:17

  3 ways to remove duplicates in List

Frequently, we may have an ArrayList which stores many values, and we need to process the ArrayList and get what are the distinct values in the list, or we may want to count occurrence of each value in the ArrayList. We can remove the duplicates in a few ways. Here we propose 3 methods :     public static void main(String[] args){        //SuperClass sub=new SubClass();                String[...

   Java,List,Duplicate,Clear     2012-09-03 09:44:32

  Find max subarray of an array

In computer science, the maximum subarray problem is the task of finding the contiguous subarray within a one-dimensional array of numbers (containing at least one positive number) which has the largest sum. For example, for the sequence of values −2, 1, −3, 4, −1, 2, 1, −5, 4; the contiguous subarray with the largest sum is 4, −1, 2, 1, with sum 6. The problem was first posed by Ulf Grenander of Brown University in 1977,...

   Max Subarray, Divide and conquer,Kadane     2013-04-22 11:50:35

  Let’s Find Out What the Future holds for .Net Technology

Technology is more like an evolution, not a revolution. The disruptive industry seems to be changing day in day out. Due to which tech companies by default have to chase new trends in order to stay ahead of the curve. Now, Microsoft.Net framework has been around since the 1990s! Do you think such refined technology can be considered relevant now? From what I can see, .Net is going through a major transformation. It’s gone largely open source and has been getting modernized so that its wor...

   ASP.NET ,.NET     2018-06-12 05:07:53

  Where do software engineers get highest pay?

According to Tencent Tech, Tech companies are generous to engineers is not a secret because there is a lack of excellent engineers. These companies are willing to pay high salary and provide attractive welfare to attract these talented people. Recently, a list of companies which pay highest average salary to software engineers is published. The interesting thing is Apple, Google or Facebook is not the company which pays highest. Then which one? The answer is Juniper. The average salary in Junipe...

   Software engineer,Salary,Juniper     2013-04-12 21:06:52

  10 stupid things smartphone users usually do

What are the things you like doing with your smartphones? Making phone calls? Playing games? Taking photos? Today we will not discuss what we should do with our smartphones, instead we will summarize 10 stupid things smartphone users usually do. 1. Taking photos of food and share them Please. The only time people want to stare at food is when we see the menu before ordering. 2. Sending SMS to solve dispute You will miss the two key components in communication : content and tone. 3. Holding mobil...

   Smartphone,Stupid     2013-05-28 12:49:05

  Rust vs Go: how to choose the best programming language for your project?

Rust and Go, these two modern programming languages, with their unique advantages, are becoming hot topics in the developer community. Their competition in performance, security, simplicity, feature set, and concurrency not only influences developers' choices but also foretells future trends in software development. Battle of Performance: Rust's Precision vs. Go's Efficiency Rust, developed by Mozilla Research, has become the preferred choice for performance-sensitive applications due to its zer...

   RUST,GO,GOLANG,COMPARISON     2024-02-10 19:36:44

  4 Often-Forgotten Elements of Starting a Small Business

Starting a new business can be an unnerving experience, however, it can be equally rewarding at the same time. The road from idea to launch can be long but when you finally open your doors for business, it will be worth every step of the journey. There is a lot to consider to get to that point. From paperwork to practicalities, it is easy for some of the seemingly minor elements of starting a business to slip through the cracks.  To ensure your business gets off to the best start possible,...

   BUSINESS,AUSTRALIA     2021-05-15 04:13:19

  Singleton Design Pattern in Java

Singleton is frequently used in applications where resource may be expensive to create and no instance specific state needs to be maintained. For example, when creating database connection, a singleton may be needed. Today we will share the famous Singleton design pattern in Java. 1. Definition Singleton design pattern is a design pattern that restricts the instantiation of a class to one object. It is one of the most well-known design patterns. 2. Application Singleton ...

   DESIGN PATTERN,SINGLETON,MULTITHREAD,JAVA     2020-04-11 02:16:28

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