sysstat提供了Linux性能监控的工具集，包括sar、sadf、mpstat、iostat、pidstat等

iostat   提供CPU统计，存储I/O统计（磁盘设备，分区及网络文件系统）
mpstat   提供单个或组合CPU相关统计
pidstat  提供进程级别统计：I/O、CPU、内存等
sar      收集、报告、保存系统活动信息：CPU、内存、磁盘、中断、网络接口、TTY、内核等
sadc     系统活动数据收集器，作为sar后端使用
sa1      收集系统活动日常数据，并二进制格式存储，它作为sadc的工具的前端，可通过cron来调用
sa2      生成系统每日活动报告，同样可作为sadc的工具的前端，可通过cron来调用
sadf     可以以CSV、XML格式等显示sar收集的性能数据，方便的将系统数据导入到数据库中，或导入到Excel中来生成图表
nfsiostat-sysstat  提供NFS I/O统计
cifsiostat   提供CIFS统计


https://github.com/sysstat/sysstat


sudo yum install sysstat



sar collects, reports and saves system activity information 
sadc is the system activity data collector, used as a backend for sar.

System statistics collected by sar:

Input / Output and transfer rate statistics (global, per device, per partition and per network filesystem)
CPU statistics (global and per CPU), including support for virtualization architectures
Memory, hugepages and swap space utilization statistics
Virtual memory, paging and fault statistics
Process creation activity
Interrupt statistics (global, per CPU and per interrupt, including potential APIC interrupt sources, hardware and software interrupts)
Extensive network statistics: network interface activity (number of packets and kB received and transmitted per second, etc.) including failures from network devices; network traffic statistics for IP, TCP, ICMP and UDP protocols based on SNMPv2 standards; support for IPv6-related protocols
Fibre Channel traffic statistics
Software-based network processing (softnet) statistics
NFS server and client activity
Sockets statistics
Run queue and system load statistics
Kernel internal tables utilization statistics
Swapping statistics
TTY devices activity
Power management statistics (instantaneous and average CPU clock frequency, fans speed, devices temperature, voltage inputs)
USB devices plugged into the system
Filesystems utilization (inodes and blocks)