harmony 鸿蒙task

2022-08-09
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task

Command Function

This command is used to query information about processes and threads.

Syntax

task/task -a

Parameters

Table 1 Parameter description

Parameter	Description	Value Range
-a	Displays all information.	N/A

Usage Guidelines

If no parameter is specified, partial task information is displayed by default.

Example

Run task.

Output

Task information (partial):

OHOS # task
  allCpu(%):    3.54 sys,  196.46 idle
  PID  PPID PGID       UID  Status VirtualMem ShareMem PhysicalMem CPUUSE10s  PName
    1    -1    1         0 Pending   0x33b000  0xbb000     0x4dc8b      0.0   init
    2    -1    2         0 Pending  0x193318e        0   0x193318e      1.11  KProcess
    3     1    3         7 Pending   0x730000 0x1a2000    0x1d34f6      0.0   foundation
    4     1    4         8 Pending   0x35e000  0xb8000     0x56777      0.0   bundle_daemon
    5     1    5         1 Pending   0xdfa000 0x2e7000    0x1487ce      0.0   appspawn
    6     1    6         0 Pending   0x688000 0x137000    0x11c518      0.0   media_server
    7     1    7         0 Pending   0x9d2000 0x103000     0xa1ddf      0.89  wms_server
    8     1    1      1000 Running   0x2bf000  0x8f000     0x2a8c6      0.0   shell
    9     5    5       101 Pending  0x11ea000 0x2f9000    0x20429d      0.97  com.example.launcher
   11     1   11         0 Pending   0x4d4000 0x112000     0xe0ad7      0.0   deviceauth_service
   12     1   12         0 Pending   0x34f000  0xbd000     0x519ee      0.0   sensor_service
   13     1   13         2 Pending   0x34e000  0xb3000     0x523d9      0.0   ai_server
   14     1   14         0 Pending   0x61f000 0x13b000    0x16841c      0.50  softbus_server
  TID  PID Affi CPU       Status StackSize WaterLine CPUUSE10s    MEMUSE  TaskName
   23    1  0x3  -1      Pending    0x3000     0xe44      0.0           0  init
    1    2  0x1  -1      Pending    0x4000     0x2c4      0.37          0  Swt_Task
    2    2  0x3  -1      Pending    0x4000     0x204      0.0           0  system_wq
    3    2  0x2  -1      Pending    0x4000     0x514      0.65          0  Swt_Task
    4    2  0x3  -1      Pending    0x1000     0x36c      0.0           0  ResourcesTask
    7    2  0x3  -1      Pending    0x4e20     0xa5c      0.0           0  PlatformWorkerThread

Table 2 Output description

Parameter	Description
PID	Process ID.
PPID	Parent process ID.
PGID	Process group ID.
UID	User ID.
Status	Current task status.
CPUUSE10s	CPU usage within last 10 seconds.
PName	Name of the process.
TID	Task ID.
StackSize	Size of the task stack.
WaterLine	Peak value of the stack used.
MEMUSE	Memory usage.
TaskName	Task name.