CPU logs are log files that record computer processor (CPU) activity. It provides information about CPU usage, performance indicators and events for analyzing and optimizing the CPU performance of the system.
CPU logs usually contain the following information:
CPU usage : Record the CPU usage, including the overall usage and the usage of each core. This information can be used to understand how busy and loaded the CPU is.
Process and thread information : Record the activity of each process and thread on the CPU, including the allocation and usage of CPU time slices. This information helps locate CPU-intensive processes and threads and optimize their execution.
Interrupt and context switch : record CPU interrupt information and context switch times. This data can provide important indicators about system load and CPU response time.
CPU frequency and power consumption : Record CPU frequency changes and power consumption information to help analyze the relationship between CPU performance and power consumption for performance optimization and energy-saving adjustments.
CPU cache and instruction execution : Provides information about CPU cache access and instruction execution, including cache hit ratio, instruction execution time, etc. This information helps analyze code efficiency and optimize instruction-level performance.
In order to collect CPU logs, several tools and methods are available:
Performance monitor : The operating system and third-party tools usually provide a performance monitor to view CPU usage, frequency changes, and load in real time. For example, the task manager in Windows and the top and htop commands in Linux.
Benchmarking tools : Some benchmarking tools (such as sysbench, Geekbench, etc.) provide the function of collecting and analyzing CPU performance, including measuring C