Tools
A Simple Tutorial on Using FFmpeg
· β˜• 2 min read
1. Installing FFmpeg Run this command on macOS: 1 brew install ffmpeg 2. Using FFmpeg 1 ffmpeg {1} {2} -i {3} {4} {5} The five parts of the arguments are, in order: Global arguments, such as -y, -loglevel, -preset, which control the overall behavior Input file arguments, such as -i, -ss, -t, -stream_loop, which control how the input file is read Input file, the path to the audio/video input file to process Output file arguments, such as -c:v, -c:a, -vf, -af, which control the encoding and filtering of the output Output file, the path to the processed output audio/video file Common output arguments:

LLM Deployment Tool llama.cpp
· β˜• 5 min read
1. LLM Deployment Tool llama.cpp Research on large models is split into two parts: training and inference. The training process is essentially the process of finding model parameters that minimize the model’s loss function and optimize the inference results. Once training is complete, the model’s parameters are fixed, and at

Using Node.js to Proxy HTTPS Requests to Dependent R&D Services
· β˜• 3 min read
1. Background Under a microservices architecture, the dependency relationships between services are complex. During development, multiple services often need joint debugging. There are two ways to do this: Deploy services to the online development environment, the Kubernetes cluster Use telepresence to connect local and online cluster communication, so you get a relatively stable joint debugging environment.

Documentation as Tooling - The Ops Tool
· β˜• 9 min read
1. What Documentation as Tooling Means “Documentation as tooling, tooling as a product” is a slogan I have repeated many times in my previous blog posts. A good document is no match for a tool that is pleasant to use. A script or a single command is more direct than reading documentation and can solve the problem faster.

Network Performance Testing Tool iperf
· β˜• 4 min read
1. Installation Ubuntu 1 apt-get install -y iperf3 CentOS 1 yum install -y iperf3 2. Parameters The principle behind iperf3 is that the client sends packets to the server so the network can be analyzed. It has two running modes: client and server. The iperf3 parameters fall into three groups: common parameters, client parameters, and server parameters.