linux performance counters

know some theories, additional load tests, and years of System Administrator experience. If you do not have many years of experience, there is a simple way to draw the bottom line: to establish this bottom line on your own expectations of the system. What kind of performance do you expect this system to have? This is the bottom line. If this requirement is not met, the performance is poor. For example, VPS

Article Title: tips for using high-performance dual-effect firewall for LINUX. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 　　 Working on Windows Many users use both

When a Linux system encounters a problem, we not only need to view the system log information, but also need to use a large number of performance monitoring tools to determine which part (memory, CPU, hard disk ......) An error occurred. In Linux, all running parameters are stored in the virtual directory/proc. In other words, the data value obtained by the

Who is better in the online world? Microsoft Windows service or open source Linux? This debate has aroused heated insights, but according to an IT consultant with rich Windows and Linux development experience, it is just a question about which server operating system is more suitable for the context requirements of the work to be done, based on standards such as expenditure,

You can get a general idea of system resource usage within 1 minutes by executing the following command. Uptime DMESG | Tail Vmstat 1 Mpstat-p all 1 Pidstat 1 IOSTAT-XZ 1 Free-m Sar-n DEV 1 Sar-n tcp,etcp 1 Top Some of these commands require the installation of sysstat packages, some of which are provided by the PROCPS package. The output of these commands helps to quickly locate performance bottleneck

If you're looking for a very easy-to-use Linux performance monitoring tool right now, I highly recommend installing and using the Nmon command-line utility.Nmon Monitoring ToolsThe Nmon is a system administrator-oriented tuning and benchmarking tool that can be used to display performance data about the following: Processor Memory Internet Di

Article Title: detailed introduction to linux performance monitoring. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Networks are the most difficult to monitor in all subsystems. F

Analysis of Linux installation performance issues before installing a Linux system on a hardware system, you need to consider many performance issues that will help optimize the operating system and the applications running on it in the future. These problems include: selecting the partition location to use multiple ha

Linux performance monitoring command vmstat I. Overview Monitoring is usually divided into machine monitoring and service monitoring. Machine Monitoring is the basic monitoring to obtain the current running status of the system. service monitoring is the main purpose and the most important monitoring, machine Monitoring also exists for better service monitoring. In short, service monitoring is related to sp

What are the hardware factors that affect Linux systems?1. CPU①CPU speed and performance to a large extent determines the overall performance of the system, the higher the number of CPUs, the higher the frequency, the serviceThe better the performance of the device② utilizes hyper-threaded CPUs to run multiple threads

optimal performanceTypically, an optimized Nginx Linux server can reach 500,000? 600,000 times/sec Request processing performance, however, my Nginx server can stabilize the processing performance of 904,000 times/sec, and I test more than 12 hours with this high load, the server work stably.Specifically, all of the configurations listed in this article are vali

A free ebook that IBM released early on the internet10 years, the reference value is still very big.Domestic translation into Chinese online reading version.See two URLs belowLinux Performance and Tuning guidelinesHttps://www.gitbook.com/book/lihz1990/transoflptg/details=========================================Server Optimization IdeasManage the change processManagement change and performance optimization a

The testing, debugging, and performance testing tools that are readily available in linux are originally named test, debugging, and performance tools that come with linux, but they are not appropriate. for example, gdb mentioned in this article, many Linux distributions prov