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02 vng thanhnt-speedup_ntvv2_by_ph_pextmodule_

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Nguyen Duc Phu
Nguyen Duc Phu

This document discusses speeding up the ZingMe-NTVV2 application by writing a PHP extension module. It introduces NTVV2, which has high traffic volumes. Writing a PHP extension can make complicated business functions run faster and use less memory compared to pure PHP. The document explains what a PHP extension is, its lifecycle, and how to set up the build environment. It recommends using SWIG, an interface compiler, to more easily connect C/C++ programs to PHP. SWIG allows defining types, wrapping classes/functions, and exposing functions to PHP. The document provides steps for using SWIG, including defining the module, generating code, creating a project, and compiling. Caching data in the PHP module

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18/12/2010 Speed up ZingMe-NTVV2 with PHP extension module By Nguyen Trung Thanh ZingMe Team leader Web Technical - VNG
Contents Introduction Why? PHP extension basic SWIG Sample
INTRODUCTION - ntvv2
Introduction • Ntvv2 (http://me.zing.vn/apps/ntvv2) – 1.M daily active user – Average 800 rps (per webserver) max 1100 rps – 9300 rps (all database servers) – 3 webservers • Use Membase for cache and storage • Use other db for secondary storage • All bussiness function is moved to PHP extension
Why to write PHP module? Make complicated Bussiness functions run faster, consume less memory PHP high-level overhead cpu/mem Advance facility with PHP-FPM Cache something in PHP process Strictly Confidential – Do Not Distribute
PHP extension basic What is an extension? Lifecycle Setting up a build environment http://devzone.zend.com/article/4486 http://devzone.zend.com/article/1021-Extension-Writing-Part-I- Introduction-to-PHP-and-Zend
What is an extension? Have you ever used PHP extension? PHP consist of many extensions All function we used is from extensions
Lifecycle
Setting up build environment - Setup PHP-devel - Sample extension
Is it complicated? ● Is there any sexier and easier way? ● We can use SWIG
SWIG SWIG is an interface compiler that connects programs written in C and C++ with scripting languages such as PHP, Python, Ruby... How SWIG works Using SWIG Install module to PHP extensions Sample Strictly Confidential – Do Not Distribute
How SWIG works
What does SWIG do for you ? Namespace Constants Type conversion For simple types (int, float, char *, enum) Wraps complex types Pointers to structs and classes Exposes functions
Using SWIG Defile module in swig file Generate source code Create module project, build it
Define module Data type Wrapper class/functions %module ntvv2module %{ #include <string> #include <vector> #include <list> #include <string> #include “ntvvgame.h" %} struct LandInfo{ int id; std::string data; } ; Strictly Confidential – Do Not Distribute LandInfo updateLandInfo(int uid, int landID);
Exposure •Swig recognizes C/C++ declarations 'struct' or 'class' functions •Hiding elements %ignore solver::noupdate; %include “satsolver/solver.h”
Useful commands •Renaming %rename("to_s") asString(); %rename( "name=" ) set_name( const char *name ); %rename("empty?") empty(); •Aliasing %alias get "[]"; •Constants %constant int Script = C_CONSTANT; •Defines %define YUILogComponent "bindings" %enddef %define %macro(PARAMETER)
SWIG steps Generate code Create project, compiling – Add genterated code to project Running – Add extension module to PHP
Sample Cache data in PHP module Strictly Confidential – Do Not Distribute
Q&A

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02 vng thanhnt-speedup_ntvv2_by_ph_pextmodule_

  • 1. 18/12/2010 Speed up ZingMe-NTVV2 with PHP extension module By Nguyen Trung Thanh ZingMe Team leader Web Technical - VNG
  • 4. Introduction • Ntvv2 (http://me.zing.vn/apps/ntvv2) – 1.M daily active user – Average 800 rps (per webserver) max 1100 rps – 9300 rps (all database servers) – 3 webservers • Use Membase for cache and storage • Use other db for secondary storage • All bussiness function is moved to PHP extension
  • 5. Why to write PHP module? Make complicated Bussiness functions run faster, consume less memory PHP high-level overhead cpu/mem Advance facility with PHP-FPM Cache something in PHP process Strictly Confidential – Do Not Distribute
  • 6. PHP extension basic What is an extension? Lifecycle Setting up a build environment http://devzone.zend.com/article/4486 http://devzone.zend.com/article/1021-Extension-Writing-Part-I- Introduction-to-PHP-and-Zend
  • 7. What is an extension? Have you ever used PHP extension? PHP consist of many extensions All function we used is from extensions
  • 9. Setting up build environment - Setup PHP-devel - Sample extension
  • 10. Is it complicated? ● Is there any sexier and easier way? ● We can use SWIG
  • 11. SWIG SWIG is an interface compiler that connects programs written in C and C++ with scripting languages such as PHP, Python, Ruby... How SWIG works Using SWIG Install module to PHP extensions Sample Strictly Confidential – Do Not Distribute
  • 13. What does SWIG do for you ? Namespace Constants Type conversion For simple types (int, float, char *, enum) Wraps complex types Pointers to structs and classes Exposes functions
  • 14. Using SWIG Defile module in swig file Generate source code Create module project, build it
  • 15. Define module Data type Wrapper class/functions %module ntvv2module %{ #include <string> #include <vector> #include <list> #include <string> #include “ntvvgame.h" %} struct LandInfo{ int id; std::string data; } ; Strictly Confidential – Do Not Distribute LandInfo updateLandInfo(int uid, int landID);
  • 16. Exposure •Swig recognizes C/C++ declarations 'struct' or 'class' functions •Hiding elements %ignore solver::noupdate; %include “satsolver/solver.h”
  • 17. Useful commands •Renaming %rename("to_s") asString(); %rename( "name=" ) set_name( const char *name ); %rename("empty?") empty(); •Aliasing %alias get "[]"; •Constants %constant int Script = C_CONSTANT; •Defines %define YUILogComponent "bindings" %enddef %define %macro(PARAMETER)
  • 18. SWIG steps Generate code Create project, compiling – Add genterated code to project Running – Add extension module to PHP
  • 19. Sample Cache data in PHP module Strictly Confidential – Do Not Distribute
  • 20. Q&A