Top 30 Scalability Mistakes

Top 30 Scalability Mistakes John Coggeshall

Welcome! ,[object Object],[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

Foundation “ Scalability marginally impacts procedure, procedure grossly impacts scalability” - Theo Schlossnagle

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

Development Infrastructure ,[object Object],[object Object],[object Object],[object Object],[object Object]

Development Infrastructure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Release Process ,[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],[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],[object Object]

Designing with Scalability ,[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]

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; ?> <?php ini_set("tidy.default_config", /path/to/compact_tidy.cfg"); ini_set("tidy.clean_output", 1); ?> clean=1 drop-proprietary-attributes=1 drop-font-tags=1 drop-empty-paras=1 hide-comments=1 join-classes=1 join-styles=1

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]

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],[object Object],[object Object],[object Object]

Let me say that again… I DON’T CARE WHAT IT SAYS IN SOME BOOK, DO NOT USE PHP TO DETERMINE WHICH DATABASE TO CONNECT TO

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

SQL Security ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Know your Web Server ,[object Object],[object Object],[object Object]

Know your Web server ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hanging up Apache ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic vs Static serving ,[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic vs Static serving ,[object Object],[object Object],[object Object]

Apache Configuration ,[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],[object Object]

Optimizing Your Application The Art of making it faster without screwing it up

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

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]

Binary Optimization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Binary Optimization ,[object Object],[object Object],[object Object],[object Object],[object Object]

Static compiling ,[object Object],[object Object]

[object Object],[object Object],[object Object],AJAX Latency

One of the biggest problems with AJAX

One of the biggest problems with AJAX ,[object Object]

One of the biggest problems with AJAX ,[object Object],[object Object]

Some requests will happen faster ,[object Object],[object Object],[object Object],[object Object],[object Object]

Developing with Latency in mind ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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

Top 30 Scalability Mistakes

Recommandé

Recommandé

Contenu connexe

Tendances

Tendances (18)

En vedette

En vedette (13)

Similaire à Top 30 Scalability Mistakes

Similaire à Top 30 Scalability Mistakes (20)

Plus de John Coggeshall

Plus de John Coggeshall (20)

Dernier

Dernier (20)

Top 30 Scalability Mistakes