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Top Forums UNIX for Advanced & Expert Users Server showing high Sys% CPU usage Post 303037852 by arizah on Thursday 15th of August 2019 12:27:50 AM
Old 08-15-2019
Server showing high Sys% CPU usage

Hi Fellas,

Not sure how I can dig in even further but we notice that one of our DB servers is showing high Sys% CPU usage even though when I execute the following command :
Quote:
ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%cpu
PID PPID CMD %MEM %CPU
496842 394979 postgres: port 40003, s4402 0.0 68.8
496825 394975 postgres: port 40000, s4402 0.0 68.7
496847 394980 postgres: port 40004, s4402 0.0 67.8
496836 394972 postgres: port 40002, s4402 0.0 67.2
496830 394969 postgres: port 40001, s4402 0.0 66.7
496852 394974 postgres: port 40005, s4402 0.0 64.9
496726 394974 postgres: port 40005, s4402 0.0 16.2
496720 394980 postgres: port 40004, s4402 0.0 15.6
496703 394969 postgres: port 40001, s4402 0.0 15.4
I can see that postgres is the only one using the CPU. So if anyone can advise me what would be the best way to trace down what type of System processes/tasks/activities could be running and possibly driving the high CPU usage would be great. thanks...
 

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Sys::Statistics::Linux::DiskUsage(3pm)			User Contributed Perl Documentation		    Sys::Statistics::Linux::DiskUsage(3pm)

NAME
Sys::Statistics::Linux::DiskUsage - Collect linux disk usage. SYNOPSIS
use Sys::Statistics::Linux::DiskUsage; my $lxs = new Sys::Statistics::Linux::DiskUsage; my $stat = $lxs->get; DESCRIPTION
Sys::Statistics::Linux::DiskUsage gathers the disk usage with the command "df". For more information read the documentation of the front-end module Sys::Statistics::Linux. DISK USAGE INFORMATIONS
Generated by /bin/df -kP. total - The total size of the disk. usage - The used disk space in kilobytes. free - The free disk space in kilobytes. usageper - The used disk space in percent. mountpoint - The moint point of the disk. GLOBAL VARS If you want to change the path or arguments for "df" you can use the following variables... $Sys::Statistics::Linux::DiskUsage::DF_PATH = '/bin'; $Sys::Statistics::Linux::DiskUsage::DF_CMD = 'df -akP'; Example: use Sys::Statistics::Linux; use Sys::Statistics::Linux::DiskUsage; $Sys::Statistics::Linux::DiskUsage::DF_CMD = 'df -akP'; my $sys = Sys::Statistics::Linux->new(diskusage => 1); my $disk = $sys->get; METHODS
new() Call "new()" to create a new object. my $lxs = Sys::Statistics::Linux::DiskUsage->new; It's possible to set the path to df. Sys::Statistics::Linux::DiskUsage->new( cmd => { # This is the default path => '/bin', df => 'df -kP 2>/dev/null', } ); get() Call "get()" to get the statistics. "get()" returns the statistics as a hash reference. my $stat = $lxs->get; EXPORTS
No exports. SEE ALSO
df(1) REPORTING BUGS
Please report all bugs to <jschulz.cpan(at)bloonix.de>. AUTHOR
Jonny Schulz <jschulz.cpan(at)bloonix.de>. COPYRIGHT
Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-03-09 Sys::Statistics::Linux::DiskUsage(3pm)
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