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Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
Cashing For Cash, part 1 DPC 2009
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Cashing For Cash, part 1 DPC 2009

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  • Websites have more pages than you think. Performance effects are aggregate.
  • Database Buffer Cache Network etc
  • Overloaded databases Badly configured machines NFS / File system contention Solutions: Get a real system administrator Pick the right database for the job Clustered / Proxy databases
  • Missing indexes. Poor schema architecture. Bad database tuning. Selecting too many columns / rows
  • Proxy callout to external services Remote PHP includes REST / AJAX SOAP / RPC calls Solutions: Cache the network calls Design your AJAX so you can easily cache it
  • Image manipulation Encryption system/exec/etc. function calls Solutions Off load work to other machines Gearman and similar are your friends
  • Performing extensive looping text replacements Performing extensive looping in general Badly written Regular Expressions Extensive recursive functionality
  • Transcript

    • 1. Caching For Cash Dutch PHP Conference – Amsterdam, June 2009
    • 2. Head of R&D at echolibre , pear extraordinaire, published author, party person and an Icelande r
    • 3. Works at Jelsoft , php core developer, published author, party person and a Scottish person
    • 4.  
    • 5. <ul><li>Identify the performance issues
    • 6. Analyze the issue
    • 7. Fix the issue </li></ul>
    • 8.  
    • 9. <ul><li>Locate
    • 10. Diagnose
    • 11. Recitfy </li></ul>
    • 12.  
    • 13.  
    • 14.  
    • 15.  
    • 16.  
    • 17. APD XDebug
    • 18. ab Siege Apache Flood Memtrack XHProf GUIMark Hardinfo Bonnie++
    • 19.  
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