4. GoogleGoogle
“You may have heard that here at Google we're obsessed with
speed, in our products and on the web. As part of that effort,
today we're including a new signal in our search ranking
algorithms: site speed. Site speed reflects how quickly a website
responds to web requests.” - April 09, 2010
6. LinuxLinux Apache Mysql PhpApache Mysql Php
The LAMP stack is possibly the best know and most widely used
stack. Its proven technology but its also old technology.
The actual server could be a dedicated, VPS or cloud server.
With shared hosting a site is one of many sites located and served
from the same server. This means all sites can have a direct influence
on the performance of the rest.
• Well supported
• Huge install base
• Flexibility
• Scalability
• Security
Pros Cons
7. IntroducingIntroducing LEMPLEMP
• Linux
• Nginx
• Percona (MySQL)*
• PHP5-FPM*
• Exim*
At first glance it may seem like it’s just Apache
swapped out for Nginx but there can be more to it.
9. Nginx (Engine x)Nginx (Engine x)
• Event-driven architecture
• Reverse Proxy
• Light on memory
• Static File performance
Features
Developed since 2002 Nginx is the worlds 2nd most used web having overtaken
IIS (Microsoft in Jan 2012)
Less is more, Nginx is lightweight. It doesn’t have as broad a feature set as
Apache... by design!
10. Nginx (Engine x)Nginx (Engine x)
https://timmehosting.de/benchmarks
Excuse the German... “schneller” means faster. Results were for
ten page loads averaged. Not overly scientific but a basic idea of
what can be expected.
11. PerconaPercona
Percona is a drop in replacement for MySQL.
• Increased query speed
• Lighter on hardware resources
• Better scalability with less chance of requiring
sharding
• Easier troubleshooting - increased logging
Features
14. php5-fpmphp5-fpm
• Adaptive Process spawning
• Graceful start/stop
• Independently configurable process workers
including UID/GID and php.ini
• Use Sockets rather than TCP/IP and get
10-15% increase in performance
FastCGI Process
Manager
Features
Tip
15. EximExim
A lightweight message transfer agent (MTA)
developed by the University of Cambridge.
• Configure as outgoing only agent
• Sendmail compatible
16. DedicatedDedicated ServersServers
Dedicated Servers are similar to VPS’a but where as a VPS is
allocated a part of the hardware resources a Dedicated server has
them all to itself.
Dedicated servers are often found in complex multi-server
architectures.
• Highly Configurable
• High Availability
• Powerful
• Dedicated
Resources
• Predictable Billing
• Isolation
• Administration Costs
• Fixed Billing
• Dedicated Resources
Pros Cons
17. CloudCloud ServersServers
• Highly Configurable
• High Availability
• Instantly Scalable
• Lower Cost
• Administration Costs
• Unpredictable Billing
• Integrity
Pros Cons
Cloud computing is simply the pooling of computer resources.
In our world they are similar to VPS’a but the resources are on-
demand and provided from a shared pool or Memory and CPU. As a
result the resources are flexible and can burst as required.
Cloud hosting is typically charged per minute + bandwidth hence the
actually monthly cost can vary greatly. Utility Computing? This is the
business model.
• seti/BOINC(Berkeley Open Infrastructure for Network Computing)
• Eucalyptus
• Open Stack
18. Closing ThoughtsClosing Thoughts
• Thousands spent on design & development will be instantly ruined
if the hosting is not up to scratch.
• Judge every site on its own merits when deciding on the correct
hosting platform.
• You can’t fudge server administration.
• Web Hosting Talk and Whirlpool are great places to start doing
your homework. But... just because you heard it there, don’t make
it true.
