pcp 基本使用

pcp 是一款强大的metrics 分析工具，包含了比较完整的指标分析工具链，同时也已经包含了好多pmdas

核心组件

yum install -y pcp

systemctl enable pmcd pmlogger pmie

systemctl start pmcd pmlogger pmie

Performance Co-Pilot configuration on iZ2zecw7m6bmthkpmft9d8Z:

 platform: Linux iZ2zecw7m6bmthkpmft9d8Z 3.10.0-1062.4.3.el7.x86_64 #1 SMP Wed Nov 13 23:58:53 UTC 2019 x86_64

 hardware: 2 cpus, 1 disk, 1 node, 3789MB RAM

 timezone: CST-8

 services: pmcd pmwebd

     pmcd: Version 4.3.2-1, 13 agents, 4 clients

     pmda: root pmcd proc pmproxy trace xfs linux mmv kvm jbd2 docker

           prometheus bcc

 pmlogger: primary logger: /var/log/pcp/pmlogger/iZ2zecw7m6bmthkpmft9d8Z/20191216.09.30

     pmie: primary engine: /var/log/pcp/pmie/iZ2zecw7m6bmthkpmft9d8Z/pmie.log

pminfo -f proc.psinfo.age

proc.psinfo.age

    inst [720 or "000720 /sbin/auditd"] value 280821.65

    inst [1 or "000001 /usr/lib/systemd/systemd"] value 280824.97

    inst [2 or "000002 (kthreadd)"] value 280824.97

    inst [1262 or "001262 /usr/sbin/sshd"] value 280817.05

    inst [783 or "000783 /usr/lib/polkit-1/polkitd"] value 280821.35

    inst [4 or "000004 (kworker/0:0H)"] value 280824.97

    inst [65 or "000065 (deferwq)"] value 280824.49

    inst [6 or "000006 (ksoftirqd/0)"] value 280824.97

    inst [247 or "000247 (ata_sff)"] value 280824.22

    inst [7 or "000007 (migration/0)"] value 280824.97

    inst [8 or "000008 (rcu_bh)"] value 280824.97

    inst [20228 or "020228 (kworker/u4:1)"] value 262

具体

yum install pcp-webapi pcp-webapp-vector pcp-webapp-grafana

systemctl enable pmwebd

web 效果
grafana：

netflix vector:

pcp 功能强大，同时也包含了exporter，可以将metrics 输出到后端存储（es,zabbix,influxdb,graphite。。。。）,同时支持bpf 分析（bcc），火焰图
。。。。