[CentOS] What free memory range is safe to operate?
Steven Tardy
sjt5atra at gmail.com
Fri Oct 27 23:28:24 UTC 2017
> On Oct 27, 2017, at 11:39 AM, marcos valentine <msr.mailing at gmail.com> wrote:
>
> percent of free memory is indicated to operate?
Free memory as in unused or free memory as in available (unused + disk buffers)?
Google: Linux ate my RAM
Output of `free` from your system may provide some context.
Now-a-days as long as swap is barely used (single digit percent) the system is usually healthy.
If the system “runs out of RAM” swap would fill up (`sar` gives historical data which often helps ID hangs or reboots due to apps running a system out of RAM) and OOM is seen in messages/dmesg.
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