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        Previously on the blog
        RSS feed
        1. Using POG with Flex
        2. Optimizing your web application
        3. Regenerating large objects
        4. PHP4 or PHP5
        5. New and Improved
        6. Evolution of a cube
        7. POG Museum
        8. POG 3.0 alpha
        9. Initial Performance results Part 2
        10. Initial performance results
        11. Proposal: POG 3.0 object model
        12. Suggest a feature
        13. A new year, A new POG release
        14. Many-Many relations
        15. POG 2.5 Released
        16. POG 2.5 beta
        17. Automatic table alignment
        18. New version: 2.1.2 released
        19. RSS should work well now
        20. RSS feed glitches
        21. What's new in 2.1.0
        22. PHP Objects 2.1.0 (preview)
        23. PHP Object relations FAQ
        24. PHP Object Relations
        25. Searching base64 encoded text
        26. How to debug POG-generated objects
        27. POG UI Tips
        28. Featuring Of Interest links
        29. PHP CRUD
        30. POG 2.0.1: A better code generator
        31. A look at the POG SOAP API
        32. POG 2.0.0 released
        33. Coming soon: Generate parent-child objects
        34. Generated abstraction v/s dynamic abstraction
        35. Zend Framework preview
        36. Coming soon: Generate Objects through SOAP
        37. Easily save images and files to a database
        38. PHP, Paypal & POG
        39. Five advanced Code Generator tips
        40. PHP Pagination using generated objects
        41. PHP Code Generator benchmarks
        42. Representing database objects using an AJAX Tree interface
        43. Using SETUP in a production environment
        44. Description of the generated object package
        45. Introducing PHP Object Generator version 1.6
        46. Using AJAX and PHP Object Generator
        47. When to use Object->SaveNew()
        48. Generating PHP objects in 2006
        49. Happy Holidays
        50. A short video of the POG Setup process
        51. A sneak peek at POG 1.6
        52. POG Tip: Field limits
        53. Previous versions.
        54. Searching the blog and tutorials sections
        55. Generating code with "Other" SQL data types
        56. Five general POG tips
        57. POG source code locations
        58. Microsoft SQL 2005 Express Edition
        59. Impatiently awaiting PHP 5.1 and PDO
        60. Php Object Generator goes open source
        61. POG generates PDO compatible code
        62. Oracle to offer free database
        63. POG Google group
        64. Database Wrappers and POG
        65. Revisions
        66. The generator blog
        67. An explanation of the 'Escape' function.
        68. Mirror, mirror
        69. Using POG to solve real world problems
        70. A php object-relational database tool
        71. A simple and flexible Object Oriented approach to PHP


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        PHP Code Generator benchmarks

        written 4813 days ago

        Over the past week, we took a few minutes to do some performance tests and compare how the latest version of POG fares against its predecessor. So without further adue, here’s a brief summary of the results:

        Hardware:
        P4-HT 3.0GHz
        512MB RAM
        Linux 2.6.14 SMP
        PHP 5.1.2 – statically built with MySQL and PDO
        MySQL 4.1.16

        Description:
        Each test consisted of performing CRUD operations with 3000 objects, each made up of 21 attributes. The attributes were of various types including VARCHAR, DECIMAL, MEDIUMTEXT, INT and DATETIME.

        The tests were performed several times, alternating between the different configurations to improve precision. In between each test, the MySQL database was reset to the original conditions. The average time taken to CREATE, RETRIEVE, UPDATE and DELETE the 3000 objects was then calculated for each condition.

        The configurations tested were:

        1. Using POG 1.6 + POG Wrapper
        2. Using POG 1.6 + PDO Wrapper
        3. Using POG 1.5 + PDO Wrapper

        Results:
        PHP Code Generator benchmarks

        The results obtained were partially surprising. As suspected, they show that POG 1.6 is faster than 1.5. The factors contributing to this performance boost are smaller and cleaner PHP classes and partial addition of preprocessing to determine which attributes need to be escaped/unescaped at the code generation level instead of at run-time.

        However, the fact that POG + PDO runs consistently slower than POG + POG wrapper was quite surprising. Since PDO is compiled within PHP as a core module, we expected it to be faster than using an external database wrapper. We suspect it has something to do with either MySQL not properly caching the prepare statements in between queries or the way we compiled PHP with PDO, although we highly doubt it.

        In any case, the benchmarks were essentially done to get a rough feel of how we’re doing in terms of performance as we move forward, and it seems we’re going in the right direction.


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        About Php Object Generator
        This is a weblog about the Php Object Generator (POG) project, OO PHP, databases and Php code generators in general.

        Php Object Generator, (POG) is an open source PHP code generator which automatically generates clean & tested Object Oriented code for your PHP4/PHP5 application.

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