Linux Memory Info: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 4: | Line 4: | ||
* [[Linux Memory Management]] | * [[Linux Memory Management]] | ||
* https://home.feodorov.com:9443/wiki/Wiki.jsp?page=LinuxProcessInformation | * https://home.feodorov.com:9443/wiki/Wiki.jsp?page=LinuxProcessInformation | ||
=Memory Metrics Definitions= | |||
<blockquote style="background-color: #f9f9f9; border: solid thin lightgrey;"> | |||
:[[proc-meminfo|proc/meminfo]] | |||
:[[proc-swaps|proc/swaps]] | |||
</blockquote> | |||
=Memory Page Size= | =Memory Page Size= | ||
| Line 38: | Line 45: | ||
Display totals (RAM and swap). | Display totals (RAM and swap). | ||
=Other Tools= | =Other Tools= | ||
Revision as of 13:35, 9 May 2017
Internal
- Linux Runtime Information
- Linux Memory Management
- https://home.feodorov.com:9443/wiki/Wiki.jsp?page=LinuxProcessInformation
Memory Metrics Definitions
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).