I've been using CentOS 7 and its kernel version is 3.10. To check Kernel Version, I typed 'uname -r' and command showed
As far as I know,
MemAvailable metric was introduced to Linux kernel version 3.14.
But, I ran
/proc/meminfo and this command showed
MemTotal: 3880620 kB MemFree: 3440980 kB MemAvailable: 3473820 kB
Why did my linux show
MemAvailable metric? My Linux kernel is below 3.14