Linux Memory Info
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Internal
- Linux Runtime Information
- Linux Memory Management
- https://home.feodorov.com:9443/wiki/Wiki.jsp?page=LinuxProcessInformation
Memory Metrics Definitions
Swap Info
Also see
Memory Page Size
Linux has its main memory organized in pages. A page is a fixed length block of main memory, that is contiguous in both physical memory addressing and virtual memory addressing. Kernel swap and allocates memory using pages. To find the page size in effect, in bytes:
getconf PAGESIZE
or:
getconf PAGE_SIZE
A typical value is 4096.
For more details see getconf.
free
free -mt
Displays RAM and swap.
-m
Display the amount in MB.
-t
Display totals (RAM and swap).