1. 1 #Dynatrace
PHP#Meetup#Atlanta,#GA#
April#2015#
Harald#Zeitlhofer#
PHP#Applica;on#Performance#
harald.zeitlhofer@dynatrace.com#
@HZeitlhofer#

2. 2 #Dynatrace
• Technology#Strategist#at#Dynatrace#
• Database#and#Web#Development#
• PHP#for#more#than#15#years#
• Love#to#discover#new#things#
Harald#Zeitlhofer#

3. 3 #Dynatrace
I’m#from#Austria#
?

4. 4 #Dynatrace

5. 5 #Dynatrace
But#you#already##
know#that...#

6. 6 #Dynatrace
Also#from#Austria#

7. 7 #Dynatrace
You#might#have#heard#of...#

8. 8 #Dynatrace
Applica;on#Performance#

9. 9 #Dynatrace
PHP#Applica;on#Performance#

10. 10 #Dynatrace
PHP#OpCache#

11. 11 #Dynatrace
PHP#OpCache#disabled#

12. 12 #Dynatrace
PHP#OpCache#enabled#

13. 13 #Dynatrace

14. 14 #Dynatrace
Nginx#–#PHP#transac;on#flow#

15. 15 #Dynatrace
Nginx#FastCGI#cache#

16. 16 #Dynatrace
Nginx#FastCGI#cache#

17. 17 #Dynatrace

18. 18 #Dynatrace

19. 19 #Dynatrace

20. 20 #Dynatrace
lessc#library#caused#
performance#hotspot#

21. 21 #Dynatrace

22. 22 #Dynatrace
Spelix#

23. 23 #Dynatrace
/katgrp/browse#

24. 24 #Dynatrace
/cave/browse/gis/$/katgrp/1626#

25. 25 #Dynatrace
/katgrp/get/$/1626#

26. 26 #Dynatrace
Back#to#/cave/browse/gis/$/katgrp/1626#

27. 27 #Dynatrace
Sessions#in#PHP#
• session_start()#locks#the#file#where#session#data#are#stored#
• Released#when#script#ends#
• Use#session_write_close()#to#unlock#the#file#before#execu;ng#slower#code#
• Or#create#your#own##
save#handler#with##
session_set_save_handler()#

28. 28 #Dynatrace
Looks#be`er#now…#

29. 29 #Dynatrace
But#…#

30. 30 #Dynatrace
/katgrp/browse#server#side#execu;on#
;me#to#check#the#
database#!#

31. 31 #Dynatrace
From#the#DB#perspec;ve#

32. 32 #Dynatrace
Here#we#go:#
what#about##
3rd#party#content?#

33. 33 #Dynatrace
3rd#party#content#

34. 34 #Dynatrace
3rd#party#content#

35. 35 #Dynatrace
Performance#Tools#

36. 36 #Dynatrace
www.dynatrace.com#
Thank#you#!!!#
Harald&Zeitlhofer&
Senior#Technology#Strategist#
#HZeitlhofer#
harald.zeitlhofer@dynatrace.com#
h`p://blog.dyntrace.com#