OpenEuler基础 sar top 查看CPU使用率

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OpenEuler基础 sar top 查看CPU使用率

[developer@developer log]$ sar -u 5 4
Linux 5.10.0-250.0.0.154.oe2203sp4.aarch64 (developer) 	2025年03月10日 	_aarch64_	(4 CPU)

22时52分56秒     CPU     %user     %nice   %system   %iowait    %steal     %idle
22时53分01秒     all      0.05      0.00      0.05      0.00      0.00     99.90
22时53分06秒     all      0.10      0.00      0.00      0.00      0.00     99.90
22时53分11秒     all      0.10      0.00      0.05      0.00      0.00     99.85
22时53分16秒     all      0.05      0.00      0.00      0.00      0.00     99.95
平均时间:     all      0.08      0.00      0.03      0.00      0.00     99.90

[developer@developer log]$ sar --help
用法: sar [ 选项 ] [ <时间间隔> [ <次数> ] ]
主要选项和报告（报告名以方括号分隔）：
	-B	分页状况 [A_PAGE]
	-b	I/O 和传输速率信息状况 [A_IO]
	-d	块设备状况 [A_DISK]
	-F [ MOUNT ]
		文件系统统计信息 [A_FS]
	-H	巨大页面利用率 [A_HUGE]
	-I { <中断列表> | SUM | ALL }
		中断信息状况 [A_IRQ]
	-m { <关键字> [,...] | ALL }
		电源管理统计信息 [A_PWR_...]
		关键字：
		CPU	CPU 瞬时时钟频率
		FAN	风扇速度
\t\tFREQ\tCPU 平均时钟频率
		IN	输入电压
		TEMP	设备温度
\t\tUSB\t连接的 USB 设备
	-n { <关键字> [,...] | ALL }
		网络统计信息 [A_NET_...]
		关键字：
		DEV	网络接口
		EDEV	网络接口（错误）
		NFS	NFS 客户端
		NFSD	NFS 服务端
		SOCK	Sockets	(v4)
		IP	IP 流	(v4)
		EIP	IP 流	(v4)（错误）
		ICMP	ICMP 流	(v4)
		EICMP	ICMP 流	(v4)（错误）
		TCP	TCP 流	(v4)
		ETCP	TCP 流	(v4) (错误)
		UDP	UDP 流	(v4)
		SOCK6	Sockets	(v6)
		IP6	IP 流	(v6)
		EIP6	IP 流	(v6)（错误）
		ICMP6	ICMP 流	(v6)
		EICMP6	ICMP 流	(v6) (错误)
		UDP6	UDP 流	(v6)
		FC	Fibre channel HBAs
		SOFT	基于软件的网络处理

	-q [ <keyword> [,...] | PSI | ALL ]
		System load and pressure-stall statistics
		Keywords are:
		LOAD	Queue length and load average statistics [A_QUEUE]
		CPU	Pressure-stall CPU statistics [A_PSI_CPU]
		IO	Pressure-stall I/O statistics [A_PSI_IO]
		MEM	Pressure-stall memory statistics [A_PSI_MEM]
	-r [ ALL ]
		内存利用率信息 [A_MEMORY]
	-S	交换空间利用率信息 [A_MEMORY]
	-u [ ALL ]
		CPU 利用率信息 [A_CPU]
	-v	内核表统计信息 [A_KTABLES]
	-W	交换信息 [A_SWAP]
	-w	任务创建与系统切换信息 [A_PCSW]
	-y	TTY 设备信息 [A_SERIAL]

[developer@developer log]$ top

top - 22:54:40 up  6:22,  0 user,  load average: 0.00, 0.02, 0.00
Tasks: 223 total,   1 running, 222 sleeping,   0 stopped,   0 zombie
%Cpu(s):  6.5 us,  4.3 sy,  0.0 ni, 89.1 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st 
MiB Mem :   6657.9 total,   5279.1 free,    736.0 used,    830.9 buff/cache     
MiB Swap:   4096.0 total,   4096.0 free,      0.0 used.   5921.9 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                        
      1 root      20   0  102692  10916   7988 S   0.0   0.2   0:02.52 systemd                        
      2 root      20   0       0      0      0 S   0.0   0.0   0:00.01 kthreadd                       
      3 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_gp                         
      4 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_par_gp                     
      6 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/0:0H-events_highpri    
      8 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mm_percpu_wq                   
      9 root      20   0       0      0      0 S   0.0   0.0   0:00.00 rcu_tasks_rude_                
     10 root      20   0       0      0      0 S   0.0   0.0   0:00.00 rcu_tasks_trace                
     11 root      20   0       0      0      0 S   0.0   0.0   0:00.05 ksoftirqd/0                    
     12 root      20   0       0      0      0 I   0.0   0.0   0:00.06 rcu_sched                      
     13 root      rt   0       0      0      0 S   0.0   0.0   0:00.00 migration/0                    
     14 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/0                        
     15 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/1                        
     16 root      rt   0       0      0      0 S   0.0   0.0   0:00.00 migration/1                    
     17 root      20   0       0      0      0 S   0.0   0.0   0:00.05 ksoftirqd/1                    
     19 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/1:0H-events_highpri    
     20 root      20   0       0      0      0 S   0.0   0.0   0:00.00 cpuhp/2                        

[developer@developer log]$ top --help

Usage:
 top [options]

Options:
 -b, --batch-mode                run in non-interactive batch mode
 -c, --cmdline-toggle            reverse last remembered 'c' state
 -d, --delay =SECS [.TENTHS]     iterative delay as SECS [.TENTHS]
 -E, --scale-summary-mem =SCALE  set mem as: k,m,g,t,p,e for SCALE
 -e, --scale-task-mem =SCALE     set mem with: k,m,g,t,p for SCALE
 -H, --threads-show              show tasks plus all their threads
 -i, --idle-toggle               reverse last remembered 'i' state
 -n, --iterations =NUMBER        exit on maximum iterations NUMBER
 -O, --list-fields               output all field names, then exit
 -o, --sort-override =FIELD      force sorting on this named FIELD
 -p, --pid =PIDLIST              monitor only the tasks in PIDLIST
 -S, --accum-time-toggle         reverse last remembered 'S' state
 -s, --secure-mode               run with secure mode restrictions
 -U, --filter-any-user =USER     show only processes owned by USER
 -u, --filter-only-euser =USER   show only processes owned by USER
 -w, --width [=COLUMNS]          change print width [,use COLUMNS]
 -1, --single-cpu-toggle         reverse last remembered '1' state
 -M, --sort-by-mem               show tasks by memory usage
 -N, --show-task-num		show the specified number of tasks

 -h, --help                      display this help text, then exit
 -V, --version                   output version information & exit

For more details see top(1).