01-07-2017
As shown -- You do not have a cpu resource problem. Period.
Cpu queues may (note the "may") be caused by a lot of process context switching. LWP's (Solaris threads) can do this. I think that is your issue. But I do no think you have a real problem. Yet.
So, if you want to learn about your system context switches try
dtrace using
cswstat.d I am definitely not saying this is your perceived issue, but dtrace is your best window into the kernel. And it looks like you want to learn.
Books like this one are very much in order for learning
dtrace:
DTrace: Dynamic Tracing in Oracle Solaris, Mac OS X and FreeBSD: Brendan Gregg, Jim Mauro: 9780132091510: Amazon.com: Books
Ok. If your system has problems, always consider starting your problem solving with I/O. I/O request queue length for example. You may have one disk device that is being hammered. Or the device has problems.
iostat is your friend here. So is
dtrace:
Tutorial: DTrace by Example
Checkout the
dtrace toolkit.
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LEARN ABOUT DEBIAN
sys::statistics::linux::cpustats
Sys::Statistics::Linux::CpuStats(3pm) User Contributed Perl Documentation Sys::Statistics::Linux::CpuStats(3pm)
NAME
Sys::Statistics::Linux::CpuStats - Collect linux cpu statistics.
SYNOPSIS
use Sys::Statistics::Linux::CpuStats;
my $lxs = Sys::Statistics::Linux::CpuStats->new;
$lxs->init;
sleep 1;
my $stats = $lxs->get;
Or
my $lxs = Sys::Statistics::Linux::CpuStats->new(initfile => $file);
$lxs->init;
my $stats = $lxs->get;
DESCRIPTION
Sys::Statistics::Linux::CpuStats gathers cpu statistics from the virtual /proc filesystem (procfs).
For more information read the documentation of the front-end module Sys::Statistics::Linux.
CPU STATISTICS
Generated by /proc/stat for each cpu (cpu0, cpu1 ...). cpu without a number is the summary.
user - Percentage of CPU utilization at the user level.
nice - Percentage of CPU utilization at the user level with nice priority.
system - Percentage of CPU utilization at the system level.
idle - Percentage of time the CPU is in idle state.
total - Total percentage of CPU utilization.
Statistics with kernels >= 2.6.
iowait - Percentage of time the CPU is in idle state because an I/O operation
is waiting to complete.
irq - Percentage of time the CPU is servicing interrupts.
softirq - Percentage of time the CPU is servicing softirqs.
steal - Percentage of stolen CPU time, which is the time spent in other
operating systems when running in a virtualized environment (>=2.6.11).
METHODS
new()
Call "new()" to create a new object.
my $lxs = Sys::Statistics::Linux::CpuStats->new;
Maybe you want to store/load the initial statistics to/from a file:
my $lxs = Sys::Statistics::Linux::CpuStats->new(initfile => '/tmp/cpustats.yml');
If you set "initfile" it's not necessary to call sleep before "get()".
It's also possible to set the path to the proc filesystem.
Sys::Statistics::Linux::CpuStats->new(
files => {
# This is the default
path => '/proc'
stat => 'stat',
}
);
init()
Call "init()" to initialize the statistics.
$lxs->init;
get()
Call "get()" to get the statistics. "get()" returns the statistics as a hash reference.
my $stats = $lxs->get;
raw()
Get raw values.
EXPORTS
No exports.
SEE ALSO
proc(5)
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::CpuStats(3pm)