Apache Con 2008 Top 10 Mistakes

Top 10 Scalability Mistakes John Coggeshall

Welcome! ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is Scalability? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

# The secret to scalability is the ability to design, code, and maintain your applications using the same process again and again regardless of size

… .From Traffic To Infrastructure…

[object Object],[object Object]

You have to plan ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Designing without Scalability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Performance Metrics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Proactive vs. Reactive ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Everyone has a role in Performance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Designing with Scalability ,[object Object],[object Object],[object Object],[object Object]

Designing with Scalability ,[object Object],[object Object]

Common Performance Blunders The names have been changed to protected the innocent, as well as my wallet.

Network file systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Network file systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I/O Buffers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ram Disks ,[object Object],[object Object],[object Object]

Bandwidth Optimization ,[object Object],[object Object],[object Object],[object Object],[object Object],<?php $o = array("clean" => true, "drop-proprietary-attributes" => true, "drop-font-tags" => true, "drop-empty-paras" => true, "hide-comments" => true, "join-classes" => true, "join-styles" => true); $tidy = tidy_parse_file("php.html", $o); tidy_clean_repair($tidy); echo $tidy; ?>

Configuring PHP for Speed ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Blocking calls ,[object Object],[object Object],[object Object],[object Object],[object Object]

Blocking calls ,[object Object],[object Object],[object Object],[object Object]

Failing to Cache ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Failing to Cache ,[object Object],[object Object]

Semi-Static Caching ,[object Object],[object Object],[object Object],[object Object]

Semi-Static Caching ,[object Object],[object Object],[object Object]

Semi-Static Caching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Semi-Static Caching ,[object Object],[object Object],[object Object],#

Poor database design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Poor database design ,[object Object],[object Object],[object Object],[object Object],[object Object]

Improperly dealing with database connections ,[object Object],[object Object],[object Object],[object Object]

Let me say that again.. ,[object Object]

Database connections ,[object Object],[object Object],[object Object],[object Object],[object Object]

Having your Cake and Eating it too ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SQLite, Huh? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Keepalive Requests ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Knowing where to Not optimize ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Knowing where to Not optimize

[object Object],[object Object],[object Object],Knowing where to Not optimize

Use Profilers ,[object Object],[object Object],[object Object],[object Object]

How a Profiler/Debugger works in PHP ,[object Object]

Tips on using a profiler ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Something More.. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Something More.. ,[object Object],[object Object],[object Object],[object Object]

Final Thoughts # ,[object Object],[object Object],[object Object],[object Object],[object Object],Questions?

Apache Con 2008 Top 10 Mistakes

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Apache Con 2008 Top 10 Mistakes