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 just do a simple installation and run and test out how it works. It doesn't involve how to fine-tune o...

IntroductionWhen it comes to function overloading, those who have learned Java should be familiar with it. One of the most common uses is logging, where different overloaded functions are called for different parameters. So, how can we implement function overloading in Python?Concept of OverloadingFunction overloading allows multiple functions with the same name to exist within the same scope, but with different parameter lists. Although many programming languages (like Java and C++) support function overloading, Python’s design philosophy does not support this feature directly.Without O...

Most of the time, when we develop software or even use software, we play within the safe boundaries of the operating system. We might not know how the network interface welcomes that IP packet, nor how the filesystem handles the inodes when we save a file.This boundary is called user space, which is where we write applications, libraries, and tools. But there's another world, kernel space, where the operating system's kernel resides and is responsible for managing system resources such as memory, CPU, and I/O devices.We usually don’t need to go below the socket or file descriptor level, ...

In Go, creating goroutines is straightforward, but improper usage may result in a large number of goroutines unable to terminate, leading to resource leakage and memory leaks over time. The key to avoiding goroutine leaks is to manage the lifecycle of goroutines properly. By exporting runtime metrics and utilizing pprof, one can detect and resolve goroutine leakage issues.This post will go through one real case encountered by the author. The author maintains a service that connects to a target machine via SSH and executes commands. This is an internal service that is usually not closely monito...

SSH, short for Secure Shell, is a network protocol used for securely remote logging into other computers on a network. I believe most backend developers are familiar with SSH. Common shell tools used for logging into servers, such as Xshell, SecureCRT, and iTerm2, are all based on the SSH protocol. In Golang, the crypto/ssh package provides functionality for implementing an SSH client. In this article, we will explain in detail how to implement an SSH client using Golang.Creating SSH Client ConfigurationFirst, we need to configure the parameters for the SSH client to connect to the server. The...

IntroductionLearning a new programming language can seem daunting, but with the right approach, anyone can become proficient in a new language. Whether you're a beginner or an experienced programmer, mastering a new language can open up new opportunities in your career and enable you to tackle new and exciting programming challenges. In this guide, we'll provide you with a step-by-step process for mastering a new programming language.Step 1: Choose a Language and Set GoalsThe first step in mastering a new programming language is to choose a language that aligns with your career goals and inter...

Many of us may subscribe to some newsletters to get update about their site or information about a topic such as JavaScript Weekly, we may receive an email every week or every month to know what's happening there.The email we receive is just a simple HTML page but with an Email format called HTML Email. It seems it's simple to write this kind of HTML Email. But the thing is it's not so easy. It takes much effort by just designing an Email template.Whether the HTML Email can be displayed normally depends completely on the mail client. Most mail clients such as Outlook and Gmail will filter the ...