vmm
Command Function
This command is used to query the virtual memory usage of a process.
Syntax
vmm [-a / -h / --help]
vmm [pid]
Parameter Description
Table 1 Parameters
|
Parameter
|
Description
|
Value Range
|
|
-a
|
Displays the virtual memory usage of all processes.
|
N/A
|
|
-h | --help
|
Displays the help information.
|
N/A
|
|
pid
|
Indicates the ID of the process to query.
|
[0, 63]
|
Usage
By default, the virtual memory usage of all processes is displayed.
Example
Enter vmm 3.
Output
Figure 1 Virtual memory usage of the process with PID 3
Table 2 Basic process information
|
Parameter
|
Description
|
|
PID
|
Indicates the process ID.
|
|
aspace
|
Indicates the address of the virtual memory control block.
|
|
name
|
Indicates the process name.
|
|
base
|
Indicates the start address of the virtual memory.
|
|
size
|
Indicates the size of virtual memory.
|
|
pages
|
Indicates the number of used physical pages.
|
Table 3 Virtual memory region information
|
Parameter
|
Description
|
|
region
|
Indicates the address of the control block in the virtual memory region.
|
|
name
|
Indicates the name of the virtual memory region.
|
|
base
|
Indicates the start address of the virtual memory region.
|
|
size
|
Indicates the size of the virtual memory region.
|
|
mmu_flags
|
Indicates the MMU mapping attribute of the virtual memory region.
|
|
pages
|
Indicates the number of used physical pages (including the shared memory).
|
|
pg/ref
|
Indicates the number of used physical pages.
|
