本篇文章给大家分享的是有关linux性能分析工具dstat是怎样的，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。
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linux性能分析图表
dstat概述
linux虽然有iostat或vmstat相关工具，dstat提供另一种可以监控磁盘及CPU或网络等性能瓶颈的全新方法。可以丰富分析诊断操作系统性能故障手段。
前提条件
[root@three57 ~]# more /etc/redhat-release
Red Hat Enterprise Linux Server release 6.8 (Santiago)
[root@three57 ~]# dstat -V
Dstat 0.7.0
dstat语义
[root@three57 ~]# dstat --help
Usage: dstat [-afv] [options..] [delay [count]]
Versatile tool for generating system resource statistics
Dstat options:
-c, --cpu enable cpu stats
-C 0,3,total include cpu0, cpu3 and total
-d, --disk enable disk stats
-D total,hda include hda and total
-g, --page enable page stats
-i, --int enable interrupt stats
-I 5,eth3 include int5 and interrupt used by eth3
-l, --load enable load stats
-m, --mem enable memory stats
-n, --net enable network stats
-N eth2,total include eth2 and total
-p, --proc enable process stats
-r, --io enable io stats (I/O requests completed)
-s, --swap enable swap stats
-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
--aio enable aio stats
--fs, --filesystem enable fs stats
--ipc enable ipc stats
--lock enable lock stats
--raw enable raw stats
--socket enable socket stats
--tcp enable tcp stats
--udp enable udp stats
--unix enable unix stats
--vm enable vm stats
--plugin-name enable plugins by plugin name (see manual)
--list list all available plugins
-a, --all equals -cdngy (default)
-f, --full automatically expand -C, -D, -I, -N and -S lists
-v, --vmstat equals -pmgdsc -D total
--bw, --blackonwhite change colors for white background terminal
--float force float values on screen
--integer force integer values on screen
--nocolor disable colors (implies --noupdate)
--noheaders disable repetitive headers
--noupdate disable intermediate updates
--output file write CSV output to file
delay is the delay in seconds between each update (default: 1)
count is the number of updates to display before exiting (default: unlimited)
dstat命令示例
2，默认显示分为5个部分
第一部分 cpu部分
第二部分 磁盘读写
第三部分 网卡发送及接收
第四部分 换页换出
第五部分 上下文切换及中断
[root@three57 ~]# dstat
----total-cpu-usage---- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai hiq siq| read writ| recv send| in out | int csw
0 0 100 0 0 0| 76k 47k| 0 0 | 0 1B| 29 825
0 0 100 0 0 0| 0 0 | 66B 826B| 0 0 | 40 94
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 11 37
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 33 92
0 0 99 1 0 0| 0 56k| 66B 346B| 0 0 | 20 47
0 1 99 0 0 0| 0 0 | 66B 346B| 0 0 | 35 95
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 14 46
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 33 92
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 13 41
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 32 93
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 15 40
1 0 99 0 0 0| 0 0 | 66B 346B| 0 0 | 34 93
0 0 100 0 0 0| 0 0 | 66B 346B| 0 0 | 11 37
3，显示文件系统
[root@three57 ~]# dstat --fs
--filesystem-
files inodes
2752 37079
2752 37079
2752 37079
2752 37079
2752 37079
2752 37079
2752 37079
2752 37079 ^C
[root@three57 ~]#
4，显示系统负载
[root@three57 ~]# dstat --load
---load-avg---
1m 5m 15m
0.07 0.12 0.17
0.07 0.12 0.17
0.07 0.12 0.17
0.07 0.12 0.17^C
[root@three57 ~]#
5，显示内存
[root@three57 ~]# dstat --mem
------memory-usage-----
used buff cach free
540M 56.1M 1169M 113M
540M 56.1M 1169M 113M
540M 56.1M 1169M 113M
540M 56.1M 1169M 113M^C
6，显示进程
[root@three57 ~]# dstat --proc
---procs---
run blk new
0 0 0.6
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0^C
[root@three57 ~]#
7，显示时间
[root@three57 ~]# dstat --time
----system----
date/time
18-11 23:21:09
18-11 23:21:10
18-11 23:21:11
18-11 23:21:12
18-11 23:21:13
18-11 23:21:14
18-11 23:21:15
18-11 23:21:16
18-11 23:21:17^C
[root@three57 ~]#
[root@three57 ~]# dstat --time --mem
----system---- ------memory-usage-----
date/time | used buff cach free
18-11 23:21:37| 540M 56.1M 1169M 113M
18-11 23:21:38| 540M 56.1M 1169M 113M
18-11 23:21:39| 540M 56.1M 1169M 113M
18-11 23:21:40| 540M 56.1M 1169M 113M^C
8，显示opoch
[root@three57 ~]# dstat --time --mem --epoch
----system---- ------memory-usage----- --epoch---
date/time | used buff cach free| epoch
18-11 23:22:19| 540M 56.1M 1169M 113M|1574090539
18-11 23:22:20| 540M 56.1M 1169M 113M|1574090540
18-11 23:22:21| 540M 56.1M 1169M 113M|1574090541
18-11 23:22:22| 540M 56.1M 1169M 113M|1574090542^C
9,显示aio
[root@three57 ~]# dstat --time --aio
----system---- async
date/time | #aio
18-11 23:22:50|2661B
18-11 23:22:51|2661B
18-11 23:22:52|2661B
18-11 23:22:53|2661B
18-11 23:22:54|2661B^C
10,显示ipc
[root@three57 ~]# dstat --time --ipc
----system---- --sysv-ipc-
date/time |msg sem shm
18-11 23:23:18| 0 2 5
18-11 23:23:19| 0 2 5
18-11 23:23:20| 0 2 5^C
11,显示锁
[root@three57 ~]# dstat --time --lock
----system---- ---file-locks--
date/time |pos lck rea wri
18-11 23:23:48| 33 5.0 0 38
18-11 23:23:49| 33 5.0 0 38
18-11 23:23:50| 33 5.0 0 38
18-11 23:23:51| 33 5.0 0 38^C
12，显示socket
[root@three57 ~]# dstat --time --socket
----system---- ------sockets------
date/time |tot tcp udp raw frg
18-11 23:24:26|391 9 7 0 0
18-11 23:24:27|391 9 7 0 0
18-11 23:24:28|391 9 7 0 0
18-11 23:24:29|391 9 7 0 0
18-11 23:24:30|391 9 7 0 0^C
13,显示tcp
[root@three57 ~]# dstat --time --tcp
----system---- ----tcp-sockets----
date/time |lis act syn tim clo
18-11 23:24:52| 12 3 0 0 0
18-11 23:24:53| 12 3 0 0 0
18-11 23:24:54| 12 3 0 0 0
18-11 23:24:55| 12 3 0 0 0
18-11 23:24:56| 12 3 0 0 0
18-11 23:24:57| 12 3 0 0 0
18-11 23:24:58| 12 3 0 0 0
18-11 23:24:59| 12 3 0 0 0^C
14,显示所有可用插件
[root@three57 ~]# dstat --time --list
internal:
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
/usr/share/dstat:
battery, battery-remain, cpufreq, dbus, disk-util, fan, freespace, gpfs, gpfs-ops, helloworld, innodb-buffer, innodb-io, innodb-ops, lustre, memcache-hits, MySQL-io, mysql-keys, mysql5-cmds, mysql5-conn, mysql5-io,
mysql5-keys, net-packets, nfs3, nfs3-ops, nfsd3, nfsd3-ops, ntp, postfix, power, proc-count, rpc, rpcd, sendmail, snooze, thermal, top-bio, top-cpu, top-cputime, top-cputime-avg, top-io, top-latency, top-latency-avg,
top-mem, top-oom, utmp, vm-memctl, vmk-hba, vmk-int, vmk-nic, vz-cpu, vz-io, vz-ubc, wifi
15，重定向到一个文件
[root@three57 ~]# dstat --time --aio --output /dstat.log
----system---- async
date/time | #aio
18-11 23:27:33|2661B
18-11 23:27:34|2661B
18-11 23:27:35|2661B
18-11 23:27:36|2661B
18-11 23:27:37|2661B
18-11 23:27:38|2661B
18-11 23:27:39|2661B
18-11 23:27:40|2661B
18-11 23:27:41|2661B^C
[root@three57 ~]# more /dstat.log
"Dstat 0.7.0 CSV output"
"Author:","Dag Wieers ",,,,"URL:","http://dag.wieers.com/home-made/dstat/"
"Host:","three57",,,,"User:","root"
"Cmdline:","dstat --time --aio --output /dstat.log",,,,"Date:","18 Nov 2019 23:27:33 CST"
"system","async"
"date/time","#aio"
18-11 23:27:33,2661.0
18-11 23:27:34,2661.0
18-11 23:27:35,2661.0
18-11 23:27:36,2661.0
18-11 23:27:37,2661.0
18-11 23:27:38,2661.0
18-11 23:27:39,2661.0
18-11 23:27:40,2661.0
18-11 23:27:41,2661.0
以上就是linux性能分析工具dstat是怎样的，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注创新互联行业资讯频道。
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