Overview
top コマンドで cpuごとの状況を確認する。
Environment
$ cat /etc/os-release NAME="Ubuntu" VERSION="18.04.6 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04.6 LTS" VERSION_ID="18.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=bionic UBUNTU_CODENAME=bionic $
command & method
top コマンドを実行したあとに 1 を押すとCPUごとの利用状況が表示される。
$ top
top - 07:36:51 up 21 days, 7:28, 1 user, load average: 0.82, 0.70, 0.70
Tasks: 357 total, 2 running, 264 sleeping, 0 stopped, 0 zombie
%Cpu(s): 7.1 us, 1.6 sy, 0.0 ni, 91.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 49454984 total, 38656184 free, 6038008 used, 4760792 buff/cache
KiB Swap: 2097148 total, 2097148 free, 0 used. 42800492 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2601 hyamazak 20 0 1114584 375000 18784 S 12.5 0.8 1675:29 qemu-system-x86
2607 hyamazak 20 0 1114584 375252 19044 R 12.5 0.8 1730:20 qemu-system-x86
1845 hyamazak 20 0 45424 4232 3432 R 6.2 0.0 0:00.01 top
2386 hyamazak 20 0 1117680 376520 18980 S 6.2 0.8 1567:56 qemu-system-x86
2387 hyamazak 20 0 1114584 373476 19332 S 6.2 0.8 1582:56 qemu-system-x86
2403 hyamazak 20 0 1114584 373104 18924 S 6.2 0.8 1556:08 qemu-system-x86
2491 hyamazak 20 0 1188316 379204 18888 S 6.2 0.8 1720:37 qemu-system-x86
2509 root 20 0 0 0 0 S 6.2 0.0 92:32.67 kvm-pit/2491
2520 hyamazak 20 0 1114584 375208 19008 S 6.2 0.8 1763:09 qemu-system-x86
2660 hyamazak 20 0 1188316 379172 18900 S 6.2 0.8 1725:37 qemu-system-x86
2710 hyamazak 20 0 1114584 373092 19080 S 6.2 0.8 1590:32 qemu-system-x86
2724 hyamazak 20 0 1191412 376200 18908 S 6.2 0.8 1596:36 qemu-system-x86
1 root 20 0 225728 9508 6644 S 0.0 0.0 0:08.45 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.14 kthreadd
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H
6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq
7 root 20 0 0 0 0 S 0.0 0.0 0:01.22 ksoftirqd/0
8 root 20 0 0 0 0 I 0.0 0.0 1:24.00 rcu_sched
9 root 20 0 0 0 0 I 0.0 0.0 0:00.00 rcu_bh
10 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
11 root rt 0 0 0 0 S 0.0 0.0 0:01.40 watchdog/0
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
13 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/1
14 root rt 0 0 0 0 S 0.0 0.0 0:01.17 watchdog/1
15 root rt 0 0 0 0 S 0.0 0.0 0:00.01 migration/1
16 root 20 0 0 0 0 S 0.0 0.0 0:00.22 ksoftirqd/1
18 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/1:0H
19 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/2
20 root rt 0 0 0 0 S 0.0 0.0 0:01.17 watchdog/2
1 を押す
top - 07:31:09 up 21 days, 7:22, 1 user, load average: 0.66, 0.69, 0.72
Tasks: 357 total, 2 running, 264 sleeping, 0 stopped, 0 zombie
%Cpu0 : 10.5 us, 3.2 sy, 0.0 ni, 86.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 1.8 us, 0.0 sy, 0.0 ni, 97.8 id, 0.0 wa, 0.0 hi, 0.4 si, 0.0 st
%Cpu3 : 11.9 us, 1.9 sy, 0.0 ni, 85.2 id, 1.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu4 : 7.1 us, 1.9 sy, 0.0 ni, 90.9 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu5 : 5.4 us, 1.3 sy, 0.0 ni, 93.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu6 : 14.8 us, 4.0 sy, 0.0 ni, 81.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu7 : 10.9 us, 1.9 sy, 0.0 ni, 87.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 49454984 total, 38655480 free, 6038912 used, 4760592 buff/cache
KiB Swap: 2097148 total, 2097148 free, 0 used. 42799580 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2486 hyamazak 20 0 1114584 376888 18616 S 5.6 0.8 1603:12 qemu-system-x86
2387 hyamazak 20 0 1114584 373476 19332 S 5.3 0.8 1582:38 qemu-system-x86
2491 hyamazak 20 0 1188316 379204 18888 S 5.3 0.8 1720:17 qemu-system-x86
2520 hyamazak 20 0 1114584 375208 19008 S 5.3 0.8 1762:49 qemu-system-x86
2601 hyamazak 20 0 1114584 375000 18784 S 5.3 0.8 1675:11 qemu-system-x86
2607 hyamazak 20 0 1114584 375252 19044 S 5.3 0.8 1730:01 qemu-system-x86
2660 hyamazak 20 0 1188316 379172 18900 S 5.3 0.8 1725:18 qemu-system-x86
2710 hyamazak 20 0 1114584 373092 19080 S 5.3 0.8 1590:14 qemu-system-x86
2386 hyamazak 20 0 1117680 376520 18980 S 5.0 0.8 1567:38 qemu-system-x86
2403 hyamazak 20 0 1114584 373104 18924 S 4.7 0.8 1555:50 qemu-system-x86
2724 hyamazak 20 0 1191412 376200 18908 S 4.7 0.8 1596:18 qemu-system-x86
2790 hyamazak 20 0 1112976 347960 19064 S 4.0 0.7 1473:08 qemu-system-x86
2041 hyamazak 20 0 618864 112352 27080 R 1.0 0.2 134:57.40 panel-7-statusn
2171 hyamazak 20 0 2734520 188224 80264 S 1.0 0.4 304:37.29 gns3
1828 hyamazak 20 0 45392 4400 3492 R 0.7 0.0 0:00.03 top
394 root 19 -1 142224 55964 40660 S 0.3 0.1 1:53.54 systemd-journal
1654 root 20 0 0 0 0 I 0.3 0.0 0:00.01 kworker/u16:2
1793 hyamazak 20 0 1529796 70832 40956 S 0.3 0.1 43:28.86 Xorg
1831 hyamazak 20 0 50576 4848 3716 S 0.3 0.0 14:58.98 dbus-daemon
1938 hyamazak 20 0 228544 26800 20888 S 0.3 0.1 5:59.09 xfwm4
2411 root 20 0 0 0 0 S 0.3 0.0 98:54.15 kvm-pit/2403
2412 root 20 0 0 0 0 S 0.3 0.0 91:16.74 kvm-pit/2387