12. io-cpu-memory¶
关于 io-cpu-memory 的查询
[tom@check ~]$ iostat
Linux 3.10.0-327.4.4.el7.x86_64 (check) 2017年12月11日 _x86_64_ (8 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
3.82 0.00 0.32 0.94 0.00 94.92
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 49.91 1062.33 2048.76 9479441715 18281532382
dm-0 1.51 3.60 77.51 32160568 691671407
dm-1 1.60 3.17 3.24 28282128 28937428
dm-2 0.61 3.89 8.54 34709518 76238588
dm-3 48.04 1051.67 1959.46 9384260398 17484682850
[tom@check ~]$
[tom@check ~]$ vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 1 1796304 277276 12 8753928 0 0 133 256 0 1 4 0 95 1 0
1 2 1796300 276716 12 8755312 16 0 720 26215 2242 2412 15 3 81 2 0
1 1 1796296 275296 12 8756816 0 0 0 22747 1650 1171 12 1 86 1 0
1 0 1796296 273772 12 8760704 4 0 1716 19107 1643 1915 9 1 85 4 0
1 0 1796296 265688 12 8768892 0 0 6432 13806 1924 2063 9 1 86 5 0
1 0 1796296 264920 12 8769968 20 0 20 2041 1640 1026 14 0 85 0 0
[tom@check ~]$ top
top - 17:18:46 up 103 days, 6:38, 10 users, load average: 1.04, 0.93, 0.86
Tasks: 393 total, 1 running, 392 sleeping, 0 stopped, 0 zombie
%Cpu(s): 10.1 us, 0.8 sy, 0.0 ni, 85.3 id, 3.8 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 16216960 total, 261732 free, 7262872 used, 8692356 buff/cache
KiB Swap: 16773116 total, 14976812 free, 1796304 used. 8445804 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15825 mysql 20 0 9864996 4.908g 7512 S 81.9 31.7 17954:43 mysqld
898 root 20 0 4372 204 64 S 1.1 0.0 529:06.74 rngd
37715 rabbitmq 20 0 6059776 49684 2952 S 1.1 0.3 596:35.47 beam.smp
65 root 20 0 0 0 0 S 0.4 0.0 24:16.56 rcuos/6
819 root 20 0 0 0 0 S 0.4 0.0 30:43.70 xfsaild/dm-3
1646 redis 20 0 150880 2908 800 S 0.4 0.0 111:13.10 redis-server
2862 tom 20 0 146412 2404 1428 R 0.4 0.0 0:00.23 top
4247 tom 20 0 934376 19612 4796 S 0.4 0.1 306:20.27 PM2 v1.1.3: God
4378 jlch 20 0 938180 23904 4876 S 0.4 0.1 437:56.05 PM2 v1.1.3: God
31674 tom 20 0 938164 22372 4748 S 0.4 0.1 42:37.57 node /home/tom/
45485 jenkins 20 0 9777.8m 1.186g 8236 S 0.4 7.7 242:55.06 java
46382 zabbix 20 0 84736 1252 1100 S 0.4 0.0 25:59.45 zabbix_agentd
1 root 20 0 189620 3388 1560 S 0.0 0.0 8:59.88 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.70 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 4:51.05 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
8 root rt 0 0 0 0 S 0.0 0.0 0:13.08 migration/0
9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh