One of the tools I use to monitor performance on IBM AIX 5.3 and Linux is NMON. Using nmon, you can monitor CPU, memory, network, disk, filesystems, NFS and Top Processes.
Install Nmon
CentOS users need to install nmon from rpmforge/repoforge repository. It is not present in Epel.
CentOs 4 :
i386 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el4.rf.i386.rpm
x86_64 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el4.rf.x86_64.rpm
CentOs5 :
i386 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.i386.rpm
x86_64 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.x86_64.rpm
CnetOs6 :
i686 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm
x86_64 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm
sudo yum install nmon
sudo apt-get install nmon
Usage :
$ nmon
And then choose what information you want to be displayed: C – for CPU; M – for Memory; T – for Processes
Keyboard shortcuts
The following keyboard shortcuts can be used turn on (and off) statistics about various components:
c = CPU l = CPU Long-term - = Faster screen updates
m = Memory j = Filesystems + = Slower screen updates
d = Disks n = Network V = Virtual Memory
r = Resource N = NFS v = Verbose hints
k = kernel t = Top-processes . = only busy disks/procs
h = more options q = Quit
Install Nmon
CentOS users need to install nmon from rpmforge/repoforge repository. It is not present in Epel.
CentOs 4 :
i386 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el4.rf.i386.rpm
x86_64 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el4.rf.x86_64.rpm
CentOs5 :
i386 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.i386.rpm
x86_64 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el5.rf.x86_64.rpm
CnetOs6 :
i686 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm
x86_64 rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm
sudo yum install nmon
sudo apt-get install nmon
Usage :
$ nmon
And then choose what information you want to be displayed: C – for CPU; M – for Memory; T – for Processes
Keyboard shortcuts
The following keyboard shortcuts can be used turn on (and off) statistics about various components:
c = CPU l = CPU Long-term - = Faster screen updates
m = Memory j = Filesystems + = Slower screen updates
d = Disks n = Network V = Virtual Memory
r = Resource N = NFS v = Verbose hints
k = kernel t = Top-processes . = only busy disks/procs
h = more options q = Quit
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