Performance Metrics

Hardcore Insights: CPU Performance Optimization Practices for Java on Linux

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Hardcore Insights: CPU Performance Optimization Practices for Java on Linux

In today’s digital wave, Java applications have become the cornerstone of core business for many enterprises, while Linux, with its stability, open-source nature, and powerful customization capabilities, has become the preferred platform for deploying Java applications. The performance bottlenecks of Java applications are often closely related to the resource management of the Linux system. This … Read more

Performance Metrics and Common Testing Tools for MCU CPUs

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Common Performance Metrics for MCU CPUs 1. Basic Performance Metrics Clock Frequency System Clock Frequency: 48MHz, 72MHz, 168MHz, 400MHz, etc. Internal Oscillator Accuracy: ±1%, ±2%, etc. External Crystal Support: Range of 4-25MHz PLL Multiplication Capability: Maximum multiplication factor Instruction Execution Performance DMIPS/MHz: Dhrystone MIPS per MHz ARM Cortex-M0: ~0.9 DMIPS/MHz ARM Cortex-M3: ~1.25 DMIPS/MHz ARM … Read more

Linux System Performance Metrics

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Linux System Performance Metrics In today’s digital age, Linux, as a representative of open-source operating systems, is widely used in servers, cloud computing, embedded devices, and development environments. System performance metrics are key to assessing the health of Linux systems. By monitoring these metrics, administrators can promptly identify bottlenecks, optimize resource allocation, and ensure business … Read more

Calculating Performance Metrics of Second-Order Systems Using MATLAB

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Calculating Performance Metrics of Second-Order Systems Using MATLAB

Input the transfer function of a second-order system to output the system’s rise time, peak time, maximum overshoot, and settling time. % Transfer function coefficients num1=[0 0 16]; den1=[1 5 16]; timeStep1=0.001; t1=0:timeStep1:10; [y1,x1,t1]=step(num1,den1,t1); i1=1; while y1(i1)<1.0001 i1=i1+1;end % Rise time riseTime=(i1-1)*timeStep1; [yMax1,tPeak1]=max(y1); % Peak time timePeak1=(tPeak1-1)*timeStep1; % Maximum overshoot overShoot1=yMax1-1; Len1=length(t1); k1=Len1; while y1(k1)>0.98 … Read more

cdpred: An Amazing Python Library!

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cdpred: An Amazing Python Library!

1. Introduction: Turning Your Browser into a Puppet cdpred is like an invisible earpiece, plugged into the back of Chrome, listening to its heartbeat in real-time. With single-page routing, asynchronous interfaces, and lazy loading on scroll, it can deliver JSON notes to you. Make yourself a cup of water, read it in 7 minutes, and … Read more

One-Click Inspection of Linux Servers and Generation of HTML Reports

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One-Click Inspection of Linux Servers and Generation of HTML Reports

The one-click inspection script (also known as a monitoring script or check script) is a very useful tool that helps administrators quickly check the system’s health, performance metrics, and security configurations. Such scripts can automate a series of commands and checks, saving time and reducing the likelihood of errors. Today, I will share a Shell … Read more

One-Click Inspection of Linux Servers and Generation of HTML Reports

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One-Click Inspection of Linux Servers and Generation of HTML Reports

The one-click inspection script (also known as a monitoring script or check script) is a very useful tool that helps administrators quickly check the health, performance metrics, and security configurations of the system. Such scripts can automate a series of commands and checks, saving time and reducing the possibility of errors. Today, I will share … Read more

Key Points for Designing Compatibility in Embedded Software!

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Key Points for Designing Compatibility in Embedded Software!

In the process of embedded development, if compatibility design is not taken into account, it may lead to: Loss of functionality after software upgrades Protocol changes causing communication issues between old and new versions Data structure changes leading to system crashes APP and device version mismatches causing functional anomalies Today, I will share the five … Read more

Chip Performance: From MIPS to TOPS

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Chip Performance: From MIPS to TOPS

Click the above“Mechanical and Electronic Engineering Technology” to follow us In today’s age of information explosion, evaluating chip performance has become increasingly important. Whether it’s smartphones, computers, or various smart devices, their performance largely depends on the chip’s performance. When discussing chip performance, we must mention two important metrics: MIPS and TOPS. These two metrics … Read more

How Linux File Systems and Disk I/O Work

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How Linux File Systems and Disk I/O Work

Like the CPU and memory, the file system and disk I/O are also core functionalities of the Linux operating system. The disk provides the most basic persistent storage for the system. The file system, built on top of the disk, provides a tree structure for managing files. File System 1. Inodes and Directory Entries Everything … Read more