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# cat /proc/cpuinfo | grep "physical id" |sort physical id : 0 physical id : 0 physical id : 3 physical id : 3 # cat /proc/cpuinfo | grep "physical id" |sort | uniq physical id : 0 physical id : 3 # cat /proc/cpuinfo | grep "physical id" |sort | uniq |wc -l 2
# cat /proc/cpuinfo | grep processor processor : 0 processor : 1 processor : 2 processor : 3 # cat /proc/cpuinfo | grep processor |wc -l 4
# cat /proc/cpuinfo |grep "cpu cores"
cpu cores : 2
cpu cores : 2
cpu cores : 2
cpu cores : 2
#cat /proc/cpuinfo | grep "cpu cores" |uniq
cpu cores : 2
# cat /proc/cpuinfo |grep "cpu cores" | perl -e 'while(<>){$n+=/(\d+)/?$1:0;}print"$n\n";'
8
cat /proc/cpuinfo |grep "cpu cores" | perl -e 'while(<>){$n+=/(\d+)/?$1:0;}print"$n\n";'
top - 08:29:00 up 216 days, 22:29, 1 user, load average: 0.55, 1.10, 1.17
Tasks: 135 total, 1 running, 134 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.6%us, 0.3%sy, 0.0%ni, 93.6%id, 5.5%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu1 : 0.6%us, 0.3%sy, 0.0%ni, 95.5%id, 3.5%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu2 : 1.5%us, 0.6%sy, 0.0%ni, 76.6%id, 21.2%wa, 0.0%hi, 0.1%si, 0.0%st
Cpu3 : 0.8%us, 0.4%sy, 0.0%ni, 94.9%id, 3.8%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 2059340k total, 1730316k used, 329024k free, 151200k buffers
Swap: 2048152k total, 148k used, 2048004k free, 950676k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 15 0 10344 676 568 S 0.0 0.0 0:10.74 init
1 root 15 0 10344 676 568 S 0.0 0.0 0:10.74 init
2 root RT -5 0 0 0 S 0.0 0.0 0:43.41 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.07 ksoftirqd/0
4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root RT -5 0 0 0 S 0.0 0.0 0:40.33 migration/1
6 root 34 19 0 0 0 S 0.0 0.0 0:00.06 ksoftirqd/1
7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
8 root RT -5 0 0 0 S 0.0 0.0 0:42.92 migration/2
9 root 34 19 0 0 0 S 0.0 0.0 0:01.52 ksoftirqd/2
#abbr
user1@ubuntu20:~$ mpstat -P ALL 1 Linux 5.4.0-65-generic (ubuntu20) 03/03/2021 _x86_64_ (2 CPU) 09:36:44 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 09:36:45 AM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:45 AM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:45 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:45 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 09:36:46 AM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:46 AM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:46 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:46 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 09:36:47 AM all 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:47 AM 0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:47 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 09:36:47 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 09:36:48 AM all 0.50 0.00 0.00 0.00 0.00 0.00 0.50 0.00 0.00 99.01 09:36:48 AM 0 0.99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.01 09:36:48 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.99 0.00 0.00 99.01 ^C Average: CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle Average: all 0.12 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 99.75 Average: 0 0.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.75 Average: 1 0.00 0.00 0.00 0.00 0.00 0.00 0.25 0.00 0.00 99.75
user1@ubuntu20:~$ sar 1 Linux 5.4.0-65-generic (ubuntu20) 03/03/2021 _x86_64_ (2 CPU) 09:34:15 AM CPU %user %nice %system %iowait %steal %idle 09:34:16 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:17 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:18 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:19 AM all 3.03 0.00 1.52 0.00 0.00 95.45 09:34:20 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:21 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:22 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:23 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:24 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:34:25 AM all 0.00 0.00 0.00 0.00 0.00 100.00 ^C Average: all 0.30 0.00 0.15 0.00 0.00 99.55 user1@ubuntu20:~$
user1@ubuntu20:~$ sar -P ALL 1 Linux 5.4.0-65-generic (ubuntu20) 03/03/2021 _x86_64_ (2 CPU) 09:35:40 AM CPU %user %nice %system %iowait %steal %idle 09:35:41 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:35:41 AM 0 0.00 0.00 0.00 0.00 0.00 100.00 09:35:41 AM 1 0.00 0.00 0.00 0.00 0.00 100.00 09:35:41 AM CPU %user %nice %system %iowait %steal %idle 09:35:42 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:35:42 AM 0 0.00 0.00 0.00 0.00 0.00 100.00 09:35:42 AM 1 0.00 0.00 0.00 0.00 0.00 100.00 09:35:42 AM CPU %user %nice %system %iowait %steal %idle 09:35:43 AM all 0.00 0.00 0.00 0.00 0.00 100.00 09:35:43 AM 0 0.00 0.00 0.00 0.00 0.00 100.00 09:35:43 AM 1 0.00 0.00 0.00 0.00 0.00 100.00 09:35:43 AM CPU %user %nice %system %iowait %steal %idle 09:35:44 AM all 0.00 0.00 0.50 0.00 0.00 99.50 09:35:44 AM 0 0.00 0.00 0.00 0.00 0.00 100.00 09:35:44 AM 1 0.00 0.00 0.99 0.00 0.00 99.01 ^C Average: CPU %user %nice %system %iowait %steal %idle Average: all 0.00 0.00 0.13 0.00 0.00 99.87 Average: 0 0.00 0.00 0.00 0.00 0.00 100.00 Average: 1 0.00 0.00 0.25 0.00 0.00 99.75