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PHP7 - For Its Best Performance

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Intro to how to achieving best performance of PHP7

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PHP7 - For Its Best Performance

  1. 1. PHP7 For Its Best Performance @laruence
  2. 2. SELF INTRODUCTION ‣ Author of Yaf, Yar, Yac, Yaconf, Taint Projects ‣ Maintainer of Opcache, Msgpack, PHP-Lua Projects ‣ PHP Core Developer Since 2011 ‣ Zend Consultant Since 2013 ‣ One of PHP7 Core Developers: Dmitry Stogov, Xinchen Hui, Nikita Popov ‣ Chief Software Architect at Lianjia Since 2015
  3. 3. W3Techs.com 100 ‣ Released in 1994 by Rasmus Lerdorf ‣ 20+ Years Programming Language ‣ Most Popular Web Service Program Language ‣ PHP7 is Released at 3 Dec 2015 ‣ Latest Version is PHP7.0.4 PHP
  4. 4. ‣ For Unicodes Supports ‣ Started in 2005, Die in 2010 ‣ Most Features Goes Into PHP-5.3 ‣ ++PHP5 = PHP7 PHP6
  5. 5. ‣ Based on PHP-5.5 JIT-Opcache Project ‣ One year long work for better PHP performance PHP7
  6. 6. ‣ Memory Optimization - PHP spends 20% time on Memory ‣ Reduce Memory allocations ‣ Reduce Memory Usage ‣ Reduce Memory Indirection ‣ Cache friendly PHPNG zval gc_infoblock_info 0 16 40 56 Zval in PHP5 zval 0 16 Zval in PHP7
  7. 7. ‣ Improved Performance: PHP 7 is up to twice as fast as PHP 5.6 ‣ Significantly Reduced Memory Usage ‣ Abstract Syntax Tree ‣ Consistent 64-bit Support ‣ Improved Exception Hierarchy ‣ Many Fatal Errors Converted to Exceptions ‣ The Null Coalescing Operator (??) ‣ Return & Scalar Type Declarations ‣ Anonymous Classes ‣ And More.. PHP7
  8. 8. BENCHMARK
  9. 9. REAL-LIFE APPLICATION BENCH
  10. 10. PHP5.6 VS PHP7
  11. 11. PERFORMANCE COMPARISON BY ULABOX
  12. 12. PERFORMANCE COMPARISON BY ATRAPALO
  13. 13. PERFORMANCE COMPARISON BY WEIBO 15% 20% 25% 30% 35% 40% 45% 12/13/15 12/14/15 12/15/15 12/16/15 12/17/15 12/18/15 12/19/15 12/20/15 12/21/15 12/22/15 12/23/15 12/24/15 12/25/15 12/26/15 12/27/15 12/28/15 12/29/15 12/30/15 12/31/15 01/01/16 01/02/16 01/03/16 01/04/16 01/05/16 01/06/16 01/07/16 01/08/16 01/09/16 01/10/16 01/11/16 01/12/16 01/13/16 01/14/16 01/15/16 01/16/16 01/17/16 01/18/16 01/19/16 01/20/16 01/21/16 01/22/16 01/23/16 01/24/16 01/25/16 01/26/16 01/27/16 01/28/16 01/29/16 01/30/16 01/31/16 02/01/16 02/02/16 02/03/16 02/04/16 02/05/16 CPU : User Time 0 1 2 3 4 5 6 7 8 DateTime 12/14/15 13 12/15/15 9 12/16/15 5 12/17/15 1 12/17/15 21 12/18/15 17 12/19/15 13 12/20/15 9 12/21/15 5 12/22/15 1 12/22/15 21 12/23/15 17 12/24/15 13 12/25/15 9 12/26/15 5 12/27/15 1 12/27/15 21 12/28/15 17 12/29/15 13 12/30/15 9 12/31/15 5 1/1/16 1 1/1/16 21 1/2/16 17 1/3/16 13 1/4/16 9 1/5/16 5 1/6/16 1 1/6/16 21 1/7/16 17 1/8/16 13 1/9/16 9 1/10/16 5 1/11/16 1 1/11/16 21 1/12/16 17 1/13/16 13 1/14/16 9 1/15/16 5 1/16/16 1 1/16/16 21 1/17/16 17 1/18/16 13 1/19/16 9 1/20/16 5 1/21/16 1 1/21/16 21 1/22/16 17 1/23/16 13 1/24/16 9 1/25/16 5 1/26/16 1 1/26/16 21 1/27/16 17 1/28/16 13 1/29/16 9 1/30/16 5 1/31/16 1 1/31/16 21 2/1/16 17 2/2/16 13 2/3/16 9 2/4/16 5 2/5/16 1 Used Memory
  14. 14. ‣ PHP 7 is Up to Twice as Fast as PHP 5.6 ‣ Significantly Reduced Memory Usage ‣ However, It Could Be Faster… MAKE PHP7 FASTER
  15. 15. ‣ Unix Domain Socket ‣ FastCGI Params ‣ Use Static PM ‣ Less Configuration is Better ‣ Opt Children Number = Total CPU Resource / CPU Usage Per Request ‣ Of course, 400 children also make sense NGNIX+PHP-FPM
  16. 16. ‣ Deploying Document Root in Tmpfs ‣ Use Fixed Size Memory ‣ Data Could Be Lost After Reboot USE TMPFS
  17. 17. USE LATEST COMPILER ‣ More Compiler Optimization ‣ GCC4.8 - Global Registers ‣ %r14 : execute_data ‣ %r15: opline ‣ Up to 10% Performance Improvement
  18. 18. Using PGO is simple in PHP7 USE PGO ‣ Profile Guided Optimization ‣ Optimize for Specific Cases ‣ Optimization According to Data Collected 
 in Runtime ‣ Up to 7% Performance Improvement ‣ Each Coin Has Two Side
  19. 19. ‣ Persistent Secondary File-Based Cache for OPCache ‣ Shared Memory is Limited ‣ Cache Can Live Across Processes ‣ opcache.file_cache=/tmp/ ‣ opcache.file_cache_only? OPCACHE FILE CACHE
  20. 20. ‣ Hugepages - Reduce TLB Miss ‣ Opcache.huge_code_page - Reduce iTLB miss ‣ Shared Memory ‣ Regular Memory Allocations ‣ Note: SIGBUS on Forking ‣ USE_ZEND_ALLOC_HUGE_PAGES = 1 ‣ PHP7.0.5 USE HUGEPAGES
  21. 21. Always Do Your Own Benchmark
  22. 22. ‣ http://w3techs.com/technologies/overview/programming_language/all ‣ http://talks.php.net/confoo16#/perf2014 ‣ https://carlosbuenosvinos.com/first-tests-with-php7-in-production-at-atrapaloeng/ ‣ https://techblog.badoo.com/.../how-badoo-saved-one-million-dollars-switching-to-php7/ Links
  23. 23. Q&A

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