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Full Discussion: RHEL Memory issue
Operating Systems Linux Red Hat RHEL Memory issue Post 302976990 by baluchen on Sunday 10th of July 2016 10:53:26 AM
Old 07-10-2016
RHEL Memory issue
Friends,

I have 8CPU/24gb RAM in my Linux servers around 30+. All the servers are running with Java based application with NFS mounted.

The problem what I have is, When I reboot servers the server memory looks decent. But after some time the "cached" memory increasing and "free" memory getting reduced and reaching some mega bytes. I searched in various forums that it is behavior for RHEL and there wont be any performance issue. But I see better performance when there is more memory available in "free". The same performance goes down when the "free" memory reach 300mb.

Code:
$ free -g
             total       used       free     shared    buffers     cached
Mem:            23         23          0          0          0          9
-/+ buffers/cache:         13         10
Swap:            1          0          1
$ free -m
             total       used       free     shared    buffers     cached
Mem:         24248      23756        492          0        233       9684
-/+ buffers/cache:      13838      10409
Swap:         2047        214       1833
$

I need your expert advice why the cached memory is increasing.. and how I set threshold so that I will always have 1-2gb free.?

Thank you
Bala
 

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LEARN ABOUT OPENSOLARIS

bssh

bssh/bvnc/bshell(1)					      General Commands Manual					       bssh/bvnc/bshell(1)

NAME

       bssh/bvnc/bshell - Browse for SSH/VNC servers on the local network

SYNOPSIS

       bssh

       bvnc

       bshell

DESCRIPTION

       bssh/bvnc/bshell  browses  for  SSH/VNC	servers  on  the  local  network, shows them in a GUI for the user to select one and finally calls
       ssh/vncviewer after a selection was made.

       If the binary is called as bssh only ssh servers will be shown. If the binary is called as bvnc only VNC servers  will  be  shown.  If  the
       binary is called as bshell both VNC and SSH servers are shown.

OPTIONS

       -s | --ssh
	      Browse for SSH servers (and only SSH servers) regardless under which name the binary is called.

       -v | --vnc
	      Browse for VNC servers (and only VNC servers) regardless under which name the binary is called.

       -S | --shell
	      Browse for both VNC and SSH servers regardless under which name the binary is called.

       -d | --domain= DOMAIN
	      Browse in the specified domain. If omitted bssh/bvnc/bshell will browse in the default browsing domain (usually .local)

       -h | --help
	      Show help.

SEE ALSO

       avahi-browse(1), ssh(1), vncviewer(1)

COMMENTS

       This man page was written using xml2man(1) by Oliver Kurth.

Manuals 							       User						       bssh/bvnc/bshell(1)
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