cached is getting high memory usage on CentOS

Posted on 2012-09-06
Last Modified: 2012-09-06

I'm running a Centos 5.5  with following hardware configuration,
Processor:- Inter(R) Xeon(TM) CPU 3.20GHz (16 CPUs),
Memory :- 32 GB

So, I noted cached memory use 26 GB, buffered memory use 1.65 GB, and free memory is onlu 1.21 GB available.
MemTotal:     32954572 kB
MemFree:       1219008 kB
Buffers:       1653304 kB
Cached:       26845304 kB
SwapCached:          0 kB

What does mean such a high cached memory?
Who's using this cached memory?
Is it normal this high cached memory?

I am afraid about this because I have Apache, nginx, Tomcat and Mysql On this server

thanks in advance
Question by:Nilesh Havire
    LVL 10

    Accepted Solution


    Author Closing Comment

    by:Nilesh Havire
    Thanks a Lot Mate

    Featured Post

    How to run any project with ease

    Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
    - Combine task lists, docs, spreadsheets, and chat in one
    - View and edit from mobile/offline
    - Cut down on emails

    Join & Write a Comment

    Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
    Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
    Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
    Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

    729 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    20 Experts available now in Live!

    Get 1:1 Help Now