06-04-2016
Understanding & Monitoring CPU performance (Load vs SAR)
Hi all,
Been reading a lot of the cpu load and its "analogy of it to car traffic path of expressway"
From wiki
Most UNIX systems count only processes in the running (on CPU) or runnable (waiting for CPU) states. However, Linux also includes processes in uninterruptible sleep states (usually waiting for disk activity)
q1) what about Solaris (I am on 10) ? Does load include (waiting for disk activity) ?
q2) On a 6 core server , for the past 1 minute -> what does it meant to have a
a) avg load of 6 -- using uptime;
b) cpu idle % of more then 70% ? -- using sar -u 10 6
I issue sar -u 10 6 && uptime (looking at its 1 minute load)
Does it meant that -> for the past 1 minute - my cpu/cores are fully utilized, but the tasks are so simple, the cpu only spent 30% of its time to execute them ?
Regards,
Noob
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LEARN ABOUT DEBIAN
io::all::https
IO::All::HTTPS(3pm) User Contributed Perl Documentation IO::All::HTTPS(3pm)
NAME
IO::All::HTTPS - Extends IO::All for HTTPS URLs
SYNOPSIS
use IO::All;
$content < io('https://example.org'); # GET webpage
# two ways of getting a page with a password:
$content < io('https://me:secret@example.org');
$content < io('https://example.org')->user('me')->password('secret');
DESCRIPTION
This module extends IO::All for dealing with HTTPS URLs. Note that you don't need to use it explicitly, as it is autoloaded by IO::All
whenever it sees something that looks like an HTTPS URL.
The SYNOPSIS shows some simple typical examples, but there are many other interesting combinations with other IO::All features! For
example, you can get an HTTPS URL and write the content to a socket, or to an FTP URL, of to a DBM file.
METHODS
This is a subclass of IO::All::LWP. The only new method is "https", which can be used to create a blank IO::All::HTTPS object; or it can
also take an HTTPS URL as a parameter. Note that in most cases it is simpler just to call io('https://example.com'), which calls the
"https" method automatically.
OPERATOR OVERLOADING
The same operators from IO::All may be used. < GETs an HTTPS URL; > PUTs to an HTTPS URL.
SEE ALSO
IO::All, IO::All::LWP, LWP.
AUTHORS
Ivan Tubert-Brohman <itub@cpan.org> and Brian Ingerson <ingy@cpan.org>
COPYRIGHT
Copyright (c) 2007. Ivan Tubert-Brohman and Brian Ingerson. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See <http://www.perl.com/perl/misc/Artistic.html>
perl v5.10.0 2007-03-29 IO::All::HTTPS(3pm)