@symfonyday portugal

1. RATIONALLYBOOST
SYMFONY2APPLICATION
2014 VERSION

2. welcometothe
bundle.com@liuggiowelcometothebundle.com

3. PERFORMANCE PROBLEM?

4. PERFORMANCE PROBLEM?TODAY SPEED IS A FEATURE

5. BUSINESSNEEDSSPEED?
(speed in terms of adding a new feature, bug hunting ...)

6. load
balancer
reverse
proxy
CDN
web
server
MQ
DB
cache
session
storage
DB
internal
storage
BROWSER
private
cache
shared cache
DNS
ISP
your company

7. GUESS
PRIDE PREJUDICE AND GUESSING

8. THEENDLESSCYCLE
make change
benchmark
profile

9. benchmarking
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm
the process of comparing …
sterilized environment - disable profiler
1

10. ab
$ apt-get install apache-utils
$ ab -e output.csv -c 10 -t 10 http://book.local
$ ab -p post.txt -T application/x-www-form-urlencoded -e output.csv -kc 10 -t 10 http://book.local
● http_load simple
● siege complete
● jmeter complex
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm

11. ProfilingXHProf demo ...2
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm
make
change
benchmark
profile

12. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm

13. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm

14. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm

15. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm

16. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm

17. Make Changes
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchm
3
make
change
benchmark
profile

18. 404
silver bullet
Not Found
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

19. ● Think as readonly filesystem
● Don’t let the user wait
● Caches are your friends
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
● Try to quit from the optimization-cycle

20. PHPAPC
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
● apc.stat=0 (need maintenance)
● fragmentation
(symfony is not slow! opcode, php 5.4, apc)

21. ● Zend Opcode
● ACPu (emulate all the apc_* calls)
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
PHP5.5

22. HHVM
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
(hhvm - HPHPc - Performance on real application)

23. HHVM = PHP++ ?
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
(HHVM is a great opportunity for Symfony and for object oriented lovers)

24. symfonyecosystem
● $ composer dump-autoload --optimize
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● twig extension http://twig.sensiolabs.org/doc/installation.html

25. symfonyecosystem
● [ASSETIC] use assetic and CDN, compress and minify files
● [SWIFT MAILER] email in the spool like Redis/Gearman or MQ
(remember to flush)
● [PROXY] no logic in the constructor!
<service id="foo" class="AcmeFoo" lazy="true" />
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

26. [MONOLOG]
don’t log to file in production
debugging: Sentry or Graylog
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

27. yourcachewarmup
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

28. liip/LiipDoctrineCacheBundle
Doctrine/Common/Cache
Without bundle
services.yml
in your application
Use a bundle
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

29. doctrineORM
● Database Abstraction Layer (DBAL)
● Object Relational Mapper (ORM)
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30. ORMcaches
metadata, query, result
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change

31. understandUOW
Unit Of Work
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

32. UOWeffect
TLDR;
keeps track changes of objects
and coordinates the writing
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
Maintains
a list of objects affected by a business transaction
and coordinates the writing out of changes and the
resolution of concurrency problems

33. UnitofWork
Managed
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

34. UnitofWork
Managed
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35. UOWeffect
flush is expensive*
while { …. $this->em->persist($v); $this->em->flush() }
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
* profile your domain first.

36. Reducing the flush cost*
— Number of managed Entities
— Type of entities (Read-Only)
$em->flush($entity);
/**
* @Entity
* @READONLY*/
Class Status {
$em->getUnitOfWork()
->markReadOnly($entity);
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
* if you really need

37. Reducing the flush cost*
/** @Entity
* @ChangeTrackingPolicy("DEFERRED_EXPLICIT”)
tracking policy
implicit DB === UOW explicit DB != OUW
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
* if you really need

38. doctrineORM
● Reference
● Partial object*
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
$q = $em->createQuery("select partial u.{id,name} from DomainUser u");
$comment->setPost($em->getReference(‘AcmeBundleEntityPost’, $postId));
* smelling tip, inconsistent objects

39. doctrineORM
● Change Hydration *
HYDRATE_OBJECT
$query->setHydrationMode(DoctrineORMQuery::HYDRATE_ARRAY);
HYDRATE_SCALAR
HYDRATE_SINGLE_SCALAR
HYDRATE_SIMPLEOBJECT
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
* Object Oriented will cry.

40. theHidden
Hydrationcache *
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
* Be careful, only for Read operations

41. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
theHydrationcache *
With ResultCache
With HydrationCache
* profile data from my domain not yours.

42. cacheproblem
● invalidation
● cache miss storm
morelesscache
● pre-caching cache-back
● microcaching
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

43. doctrineORMassociation
● Fetching is LAZY by default
● Changing for some queries
● Fetching EXTRA LAZY
$query = …
$query->setFetchMode(“Order”, “Cart”, “LAZY”);
->contains($entity); ->count(); ->slice($offset, $length);
/*** @ManyToOne(targetEntity=”Cart”, cascade={“all”}, fetch=”EAGER”)
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

44. ->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
HTTPCache
● http specification
● validation / expiration
● safe methods
● Edge Side Included
http://symfony.com/doc/current/book/http_cache.html

45. measure … and Metrics?
● Behaviour
● Measure applications data
● Don’t use for benchmarking
Visual tool to better understand the reality
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma

46. benchmark->profile->make change
metrics produces graphs decisions
composer install liuggio/statsd-client-bundle ~1

47. Optimizing dev tool
->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchmark->profile->make change->benchma
https://www.flickr.com/photos/itomcash/12953162645/sizes/l/
(multiple xdebug configs, db on ram, tricks, shared and private fixtures)

48. OOD, SOA, DDD, 12factors
Architecture

49. BALANCED
OPTIMIZATION vs MAINTAINABILITY
BE

50. References
1. http://labs.qandidate.com/blog/2013/10/21/running-symfony-standard-on-hhvm/
2. http://www.appdynamics.com/blog/php/php-performance-crash-course-part-1-the-basics/
3. https://support.cloud.engineyard.com/entries/26902267-PHP-Performance-I-Everything-You-Need-
to-Know-About-OpCode-Caches
4. https://speakerdeck.com/dshafik/lonestar-php-fast-not-furious-how-to-identify-and-fix-slow-code
5. http://share.ez.no/learn/ez-publish/ez-publish-performance-optimization-part-1-of-3-introduction-
and-benchmarking/%28page%29/5
6. http://www.linuxhelp.in/2012/11/benchmarking-with-http-load.html
7. https://speakerdeck.com/bastianhofmann/profiling-php-applications
8. http://www.symfony.com
9. http://blog.ircmaxell.com/2013/09/rambling-on-internals.html
10. .P of EAA page 184 Patterns of Enterprise Application Architecture by Martin Fowler
11. https://doctrine-orm.readthedocs.org/en/latest/reference/unitofwork.html
12. http://docs.doctrine-project.org/en/latest/reference/change-tracking-policies.htmlFlush optimization
13. http://slides.seld.be/?file=2011-10-20+High+Performance+Websites+with+Symfony2.html#1
Credits:
https://www.flickr.com/photos/kelehen/8962203423
https://www.flickr.com/photos/itomcash/12953162645

51. QUESTIONSARE
ALWAYSBETTER
THANANSWERS
@liuggio
https://joind.in/10783