%CPU:进程占用CPU的使用率 %MEM:进程使用的物理内存和总内存的百分比 TIME+:该进程启动后占用的总的CPU时间,即占用CPU使用时间的累加值。 COMMAND:进程启动命令名称 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 操作实例: 在命令行中输入 “top” 即可启动 top top 的全屏对话模式可分为3部分:系统...
%user:表示用户进程所使用cpu的百分比 %system:表示内核进程所使用cpu的百分比 %guest:表示进程在虚拟机占用的CPU的百分比 %wait:表示任务在等待运行时花费的cpu的百分比 %CPU:表示进程所使用cpu的百分比 CPU:处理进程的cpu编号 Command:进程对应的命令 五、lsof命令 sof(list open files)是一个列出当前系统打开文件...
Yes it's supported by the kernel and the filesystem, but since it's not intended for general usage it's not exposed to the shell. You could probably work out which APIs Time Machine uses and wrap them in a commandline tool, but it'd be better to take the hint and steer well-clear...
u_int32_t ac_btime; /* Process creation time(seconds since the Epoch) */ comp_t ac_utime; /* User CPU time */ comp_t ac_stime; /* System CPU time */ comp_t ac_etime; /* Elapsed time */ comp_t ac_mem; /* Average memory usage (kB) */ comp_t ac_io; /* Characters t...
top command displays the top processes in the system ( by default sorted by cpu usage ). To sort top output by any column, Press O (upper-case O) , which will display all the possible columns that you can sort by as shown below. Current Sort Field: P for window 1:Def Select sort...
the -r option or the interactive r command. eAbsolute mode. Count events using absolute counters. nNon-event mode (default). Calculate CPU usage since the previous sample. Accumulative mode Delta mode Absolute mode Non-event mode 可以以不同的关键字排序,详情见 man top 中的 -o 选项 ...
I have following command to get the count of the string from a filegrep -c "CPU" /opt/core.log It will returns the count of that string from that fileAlong with this command can I compare that result with any number . I tried many ways but getting the o/p...
sar 命令报告 CPU 的使用情况,I/O 以及其它系统行为。sar 命令可以收集,报告以及保存系统行为信息。以这种方式收集到的数据对于确定系统的时间周期特征和决定峰值使用时间是很有用的。但要注意的是,sar 命令自己运行时会产生相当数量的读写,因此最好在没有工作量的情况下运行 sar 统计,看看 sar 对总的统计数字有...
If multiple samples and multiple reports are desired, it is convenient to specify an output file for the sar command. Collection of data in this manner is useful to characterize system usage over a period of time and determine peak usage hours....
The Perfmtr (performance meter) command-line utility dynamically displays system performance information. The information is updated every 2-3 seconds. Perfmtr starts by displaying CPU usage data. However, single-letter keyboard commands prompt it to display performance information such as those shown ...