Displaying the memory block configuration
You can display the configuration of the memory blocks of your Linux® instance by using the lsmem command.
Before you begin
See the lsmem man page for a full description of the command.
About this task
Available output columns:
- RANGE start and end address of the memory range
- SIZE size of the memory range
- STATE online status of the memory range
- REMOVABLE memory is removable
- BLOCK memory block number or blocks range
- NODE numa node of memory
- ZONES valid zones for the memory range
- CONFIGURED configuration status of the memory range
- MEMMAP-ON-MEMORY memmap-on-memory status of the memory range
Procedure
Use the lsmem command to list your memory blocks.
To display configuration, memmap-on-memory and online status of memory blocks:
# lsmem -o RANGE,SIZE,STATE,BLOCK,CONFIGURED,MEMMAP-ON-MEMORY
RANGE SIZE STATE BLOCK CONFIGURED MEMMAP-ON-MEMORY
0x00000000-0x7fffffff 2G online 0-15 yes no
0x80000000-0xbfffffff 1G offline 16-23 no yes
Memory block size: 128M
Total online memory: 2G
Total offline memory: 1G
Memmap on memory parameter: yes
In the example, the Range column is limited to 8 digits for user-friendly output display. Use lsmem --output-all to display all columns.