DSTAT 非常好用的状态监测工具
Dstat 是一种用于从系统组件中检索信息或统计数据，例如网络连接、IO 设备或 CPU 等。它通常由系统管理员用于检索有关上述系统组件的少量信息。它本身的功能类似于 vmstat、netstat、iostat 等工具。使用此工具，用户甚至可以查看组成单个文件系统或存储系统的块设备的吞吐量。
安装dstat：
Bash
yum install dstat直接运行可以看到实时监控的一些基本参数。在服务器出现异常的时候是一个不错的监控工具。
下面是完整的可选参数：
Bash
-c, --cpu
//enable cpu stats (system, user, idle, wait, hardware interrupt, software interrupt)
-C 0,3,total
//include cpu0, cpu3 and total
-d, --disk
//enable disk stats (read, write)
-D total,hda
//include hda and total
-g, --page
//enable page stats (page in, page out)
-i, --int
//enable interrupt stats
-I 5,10
//include interrupt 5 and 10
-l, --load
//enable load average stats (1 min, 5 mins, 15mins)
-m, --mem
//enable memory stats (used, buffers, cache, free)
-n, --net
//enable network stats (receive, send)
-N eth1,total
//include eth1 and total
-p, --proc
//enable process stats (runnable, uninterruptible, new)
-r, --io
//enable I/O request stats (read, write requests)
-s, --swap
//enable swap stats (used, free)
-S swap1,total
//include swap1 and total
-t, --time
//enable time/date output
-T, --epoch
//enable time counter (seconds since epoch)
-y, --sys
//enable system stats (interrupts, context switches)
--aio
//enable aio stats (asynchronous I/O)
--fs
//enable filesystem stats (open files, inodes)
--ipc
//enable ipc stats (message queue, semaphores, shared memory)
--lock
//enable file lock stats (posix, flock, read, write)
--raw
//enable raw stats (raw sockets)
--socket
//enable socket stats (total, tcp, udp, raw, ip-fragments)
--tcp
//enable tcp stats (listen, established, syn, time_wait, close)
--udp
//enable udp stats (listen, active)
--unix
//enable unix stats (datagram, stream, listen, active)
--vm
//enable vm stats (hard pagefaults, soft pagefaults, allocated, free)
--stat1 --stat2
//enable (external) plugins by plugin name, see PLUGINS for options
//Possible internal stats are
//aio, cpu, cpu24, disk, disk24, disk24old, epoch, fs, int, int24, io, ipc, load, lock, mem, net, page, page24, proc, raw, socket, swap, swapold, sys, tcp, time, udp, unix, vm
--list
//list the internal and external plugin names
-a, --all
//equals -cdngy (default)
-f, --full
//expand -C, -D, -I, -N and -S discovery lists
-v, --vmstat
//equals -pmgdsc -D total
--bw, --blackonwhite
//change colors for white background terminal
--float
//force float values on screen (mutual exclusive with --integer)
--integer
//force integer values on screen (mutual exclusive with --float)
--nocolor
//disable colors (implies --noupdate)
--noheaders
//disable repetitive headers
--noupdate
//disable intermediate updates when delay > 1
--output file
//write CSV output to file另外dstat还提供了大量的插件可以选择。按照需求选额吧。更多详细信息可以参考这里：dstat
折腾愉快！