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linux sysstat     所属分类 linux 浏览量 19
sysstat官网
http://sebastien.godard.pagesperso-orange.fr/

https://github.com/sysstat/sysstat

The sysstat utilities are a collection of performance monitoring tools for Linux. 
These include sar, sadf, mpstat, iostat, tapestat, pidstat, cifsiostat  and sa tools. 

iostat    reports CPU statistics and input/output statistics for block devices and partitions.
mpstat    reports individual or combined processor related statistics.
pidstat   reports statistics for Linux tasks (processes) : I/O, CPU, memory, etc.

yum -y install sysstat


查看安装位置和文件
rpm -ql sysstat



iostat -c 仅显示cpu信息 -d 仅显示存储设备信息,不可以和-c一起使用 -k KB -m MB -t 显示日期 -p device | ALL device为某个设备或者某个分区, ALL 所有分区和设备的信息 -x 显示扩展状态 iostat iostat 2 6 iostat -d -k 2 6 iostat -c iostat -d -x iostat -d -x 2 6
mpstat Multiprocessor Statistics mpstat 2 5 cpu汇总信息 mpstat -P ALL 所有核 (含汇总) mpstat -P 0 查看cpu0的统计数据
pidstat pidstat -C java pidstat -dl pidstat -drsuwlh -C comm Display only tasks whose command name includes the string comm. -d Report I/O statistics (kernels 2.6.20 and later only). -h Display all activities horizontally on a single line. This is intended to make it easier to be parsed by other programs. -l Display the process command name and all its arguments. -p { pid [,...] | SELF | ALL } -r Report page faults and memory utilization. -s Report stack utilization. -t Also display statistics for threads associated with selected tasks. -u Report CPU utilization. -w Report task switching activity (kernels 2.6.23 and later only). -h 列很多时保持 单行输出
linux iostat 命令 linux mpstat 命令 Linux vmstat 命令 linux性能监控工具sysstat介绍

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