RAM use en Centos 7 and Centos 6

[franmm25]

I see one big difference when run Sentora over same VPS with differentes OS of Centos ( 6 and 7 )

The Result of free -m in Centos 6 64 Bits it´s this :

[root@xxxxxx ~]# free -m
total used free shared buffers cached
Mem: 996 219 777 0 17 79
-/+ buffers/cache: 122 873
Swap: 1983 0 1983

===========================================

The Result of free -m in Centos 7 64 Bits it´s this :

[root@xxxxxx ~]# free -m
total used free shared buff/cache available
Mem: 993 326 114 49 553 458
Swap: 3135 6 3129

===========================================



I don´t know if this it´s normal or no , the case or my question it´s about if normal in the case of Centos 6 , have more of 700 mb free of RAM and in te case of Centos 7 have 114 mb free and the rest in buff/cache

I don´t understand this , also i try in other Centos versions of 32 bits and always happend in Centos 7 , i´m new in Centos 7 always or during many time use Centos 6 and i don´t know repit if it´s normal or this change in new version of Centos

VPS running with Wmare in Aruba Cloud VPS , with 1 gb RAM , 1 Core , and 20 Gb of Space

This it´s my question , thank´s

[jacobg830]

Memory in buff/cache is automatically freed and made available to processes (as 'normal' memory) as it's needed.

It seems CentOS 7 has come up with a use for free memory, most likely as disk cache which should speed up your system.