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Full Discussion: UNIX.com response times
Contact Us Post Here to Contact Site Administrators and Moderators UNIX.com response times Post 303005614 by bakunin on Friday 20th of October 2017 07:13:00 AM
Old 10-20-2017
Update: here is a document explaining why HTTPS is faster than HTTP.

It boils down to a Google-developed additional session layer (SPDY) from which only HTTPS profits. Basically it is not HTTPS vs. HTTP but multiplexed sessions over a single TCP connection versus unmultiplexed sessions. It would be possible to do HTTP over SPDY too (it is just not done). HTTP2 is basically SPDY standardised and further developed.

In principle HTTP is slightly faster than HTTPS: there are caching facilities so that not every retransmission has to be originated by the client. HTTPS lacks that because relaying stations cannot read what they transmit.

How SPDY speeds up things is especially via the session multiplexing. This gains lots of time because of the delayed TCP-ack, which takes 500ms.

bakunin
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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)
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