Comparison of Linux kernel information tools: comparison of top, lscpu, /proc/cpuinfo

In the Linux environment, in-depth understanding of CPU core information can help us optimize system performance and solve fault problems. However, selecting a kernel information query tool suitable for this is not an easy task. To help you find the best choice, we will conduct evaluation and comparative analysis of a variety of common related software.

1. top command: real-time monitoring of system resources

Top command is an excellent Linux system monitoring tool that can display the allocation of resources required for each task on the system in real time. With this tool, we can easily understand CPU utilization and load changes, as well as the share of each process on the CPU. However, it should be noted that this command does not yet have a built-in function to directly view the details of the CPU core.

2. lscpu command: display CPU information in detail

The Lscpu command is a comprehensive and practical tool that can clearly display various important information about the CPU in the system, such as model, frequency, architecture, etc. With this tool in hand, you can quickly grasp the number of physical cores and logical cores in the system, as well as the cache size and number of bits each core has. In addition, the lscpu command has many parameters for you to choose from, and you can easily adjust the output content according to your needs.

3./proc/cpuinfo file: Get CPU detailed information

/proc/cpuinfo file is a detailed and virtualized CPU manual. Through this document, you can understand and master important information such as each CPU's model, clock speed, buffer size, and supported instruction sets. However, interpreting this document does require some expertise and skills, and I hope you will understand and enjoy the treasure trove of information contained within.

4. sysfs file system: in-depth understanding of kernel parameters

In the Linux kernel, the popular sysfs file system is a virtual file system. It provides us with a convenient way to view detailed CPU-related information, such as the online status of each core, frequency adjustment strategy, and even power consumption management, etc. There are rich and diverse directory structures and attribute files linux delete folder to meet the in-depth exploration needs of more users.

5. lshw command: Comprehensive display of hardware information

LSHW command is a practical and powerful hardware query software that can display the detailed status of all hardware components on your machine. Whether it is CPU information or other components such as memory, hard disk or network card, you can intuitively understand it. In addition, this command also has multiple output methods and filtering options to meet the personalized needs of users.

6. hwinfo command: comprehensive hardware information tool

hwinfo is a comprehensive hardware monitoring tool arch linux, which can comprehensively obtain detailed information about various hardware devices in the system, and supports a variety of output formats. Using hwinfo, we can quickly and effectively query key information such as CPU model, frequency, cache size, etc. At the same time, hwinfo also comes with many practical functions, such as detecting hardware failures and identifying unrecognized devices, etc.

7. cpuid command: obtain CPU feature information

cpuid command is a CPU feature query tool that helps you find out. With this tool, you can gain a deeper understanding of the instruction set, cache architecture, and memory controller supported by the CPU. More importantly, the cpuid command gives you insight into the CPU's compatible virtualization technology, enhanced instruction set, and advanced power management features. With a rich variety of options and parameter settingslinux view cpu core, no matter what your needslinux view cpu core, you can accurately locate the detailed information you need.

8. sysstat tool: system performance monitoring suite

Sysstat is a professional system performance management software that includes utilities that can help you observe CPU usage. The two commands sar and pidstat are magic weapons used to track CPU utilization, number of context switches, and CPU usage of each process. In addition, Sysstat also has a variety of rich parameter and report functions, bringing quick and convenient help to your data analysis and performance optimization.

In this evaluation competition about CPU core viewing tools, we can recommend the one that is closest to your actual needs. Whether it is dynamic monitoring, detailed description or in-depth exploration of kernel parameters, there are always suitable tools to solve your urgent needs. I hope this article can help you obtain CPU kernel information in a Linux system with ease.

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