top
rk356x_box:/ # busybox top --help
BusyBox v1.34.1 (2022-09-27 07:55:23 UTC) multi-call binary.
Usage: top [-bmH] [-n COUNT] [-d SECONDS]
Show a view of process activity in real time.
Read the status of all processes from /proc each SECONDS
and show a screenful of them.
Keys:
N/M/P/T: show CPU usage, sort by pid/mem/cpu/time
S: show memory
R: reverse sort
H: toggle threads, 1: toggle SMP
Q,^C: exit
Options:
-b Batch mode
-n N Exit after N iterations
-d SEC Delay between updates
-m Same as 's' key
-H Show threads
example：
rk356x_box:/ # busybox top
Mem: 3881248K used, 45688K free, 15392K shrd, 71356K buff, 1001364K cached
CPU: 26.0% usr 6.5% sys 0.0% nic 65.2% idle 0.0% io 0.0% irq 2.1% sirq
Load average: 0.64 0.89 1.03 3/1120 8617
PID PPID USER STAT VSZ %VSZ CPU %CPU COMMAND
9787 237 1000 R< 2203m 57.2 3 21.9 {sundray.meeting} com.sundray.meeting
218 1 1000 S< 10.5g280.1 1 1.8 {composer@2.1-se} /vendor/bin/hw/android.hardware.graphics.composer@2.1-se
16054 1021 0 S 21140 0.5 2 1.8 /system/bin/cbox/cq_mira_p2p1
1759 1472 0 S 18760 0.4 1 1.8 /lgw/sbin/mqtt_forward
8617 8000 0 R 2132 0.0 0 1.8 busybox top
415 2 0 SW< 0 0.0 1 1.8 [scheduler_threa]
10 2 0 IW 0 0.0 1 1.8 [rcu_preempt]
8495 2 0 IW 0 0.0 2 1.8 [kworker/u8:4-wm]
431 236 1000 S< 15.9g424.4 1 0.0 {Binder:431_3} system_server
593 236 10035 S 13.6g363.4 2 0.0 {ndroid.systemui} com.android.systemui
570 236 1002 S 13.5g360.3 1 0.0 {droid.bluetooth} com.android.bluetooth
236 1 0 S 13.4g358.7 2 0.0 {main} zygote64
769 236 1073 S 13.2g353.7 0 0.0 {rkstack.process} com.android.networkstack.process
1439 236 10039 S 13.2g352.8 1 0.0 {ssioncontroller} com.android.permissioncontroller
1065 236 10040 S 13.2g352.4 0 0.0 {rs.media.module} com.android.providers.media.module
951 236 10034 S 13.2g351.5 2 0.0 {droid.launcher3} com.android.launcher3
839 236 1000 S 13.2g351.3 2 0.0 {oid.tv.settings} com.android.tv.settings
1137 236 1000 S 13.1g348.7 1 0.0 {.update.service} android.rockchip.update.service
863 236 10038 S 13.1g348.6 1 0.0 {id.ext.services} android.ext.services
1244 236 10003 S 13.0g347.9 1 0.0 {d.process.media} android.process.media
1478 236 10007 S 13.0g347.8 1 0.0 {viders.calendar} com.android.providers.calendar
1639 236 1000 S 13.0g347.4 1 0.0 {tingtest:remote} com.jwipc.xinruimeetingtest:remote
818 236 1068 S 13.0g347.3 2 0.0 com.android.se
1092 236 1000 S 13.0g347.3 1 0.0 {ample.changeled} com.example.changeled
9749 236 1000 S 13.0g347.3 0 0.0 {ndroid.keychain} com.android.keychain
1645 236 1000 S 13.0g347.1 2 0.0 {ips.mediacenter} com.rockchips.mediacenter
一般使用，可使用h来切换是否按线程名称来显示CPU占用率
