The regular top command that's installed by default is the most popular way to check CPU and memory utilization on Linux machines. While the top command works on every Linux device, alternatives like htop and nmon tools do a better job of providing the info with a more interactive user ...
1. free -m This command will show the output of total memory installed in the system. it will also show the used and free memory. the above command will give the output in mega bytes. if you need to check the gigabytes of memory, replace -m with -g. There are many other switches ...
Chapter 8. A Closer Look at Processes and Resource Utilization(第 8 章 流程和资源利用的近距离观察) This chapter takes you deeper into the relationships between processes, the kernel, and system resources. There are three basic kinds of hardware resources: CPU, memory, and I/O. Processes vie...
awk [-F|-f|-v] ‘BEGIN{}//{command1; command2} END{}’ file[-F|-f|-v] 大参数,-F指定分隔符,-f调用脚本,-v定义变量var=value' '引用代码块 BEGIN 初始化代码块,在对每一行进行处理之前,初始化代码,主要是引用全局变量,设置FS分隔符// 匹配代码块,可以是字符串或正则表达式{} 命令代码块,包...
perf sched record <command>:记录测试过程中的调度事件 perf sched latency:报告线程调度延时和其他调度相关属性 perf sched script:查看执行过程中详细的trace信息 perf sched replay:回放perf sched record录制的执行过程 perf sched map:用字符表示打印上下文切换 执行sudo perf sched record ls后,通过不同方式查看结...
==65614== Command: bigmem 256 ==65614== Attempting to allocate 256 Mebibytes of resident memory... Press <Enter> to exit 1. 2. 3. 4. 5. 6. 7. 8. 9. 现在我们确定bigmem正在泄漏内存,泄露的原因是bigmem 256导致的 ==65614== Command: bigmem 256 ...
[main] summary=Optimize for running inside a virtual guest include=throughput-performance [sysctl] # If a workload mostly uses anonymous memory and it hits this limit, the entire # working set is buffered for I/O, and any more write buffering would require # swapping, so it's time to ...
kmem Tooltotrace/measure kernel memory properties kvm Tooltotrace/measure kvm guest os list List all symbolic event types lock Analyze lock events mem Profile memory accesses record Runacommandandrecorditsprofileintoperf.datareport Read perf.data (createdbyperf record)anddisplaytheprofile ...
ForopenSUSEsystem, useZypper Commandto install smem. $ sudo zypper install smem $ sudo zypper install python-matplotlib 回到顶部 Run smem without any options After successfully smem installed with help of above command. Just fire the below command on terminal to mesure memory usage. ...
Command:进程的执行命令; 常用快捷键: 上下箭头:上下滚动查看进程; u:显示指定用户的进程; P:按照进程使用的CPU时间百分比排序; M:按照进程使用的内存百分比排序; T:按照进程已连续运行时间排序; 参考: https://linuxtogether.org/htop-command-explanation/ ...