APEX Performance Analyse

Transcription

1 APEX Performance Analyse DOAG 2018 Peter

2 Tools Tools Tools

3 Activity Log Browser Developer Tools APEX Debug Trace Hierarchical Profiler

4 Co-Founder of FOEX

5

6 How to measure: Page Load

7 DB Time

8 Network Time

9 Client Time

10 = Total Time User waits

11 Stop Watch?

12 Browser Developer Tools

13 Google Chrome

14 Firefox

15 Safari

16 TTFB = Time to first Byte = DB-Time+Network-Time

17 (Page) Load = DB-Time+Network-Time+Client-Time

18 Network tab explained in detail

19 Save as HAR (HTTP Archive)

20 Review HAR Files Some Browser Developer Tools (eg. Firefox) also support loading HAR files and displaying their content

21 Activity Log

22 View APEX_WORKSPACE_ACTIVITY_LOG

23 View APEX_WORKSPACE_ACTIVITY_LOG

24 App Builder has many predefined Activity Reports

25 App Builder has many predefined Activity Reports

26 Logging can be deactivated

27 APEX Debug

28 Activate Debug in APEX as Developer

29 Activate Debug in APEX f?p=app:page:session::yes/levelx::: OR APEX_DEBUG.enable(p_level) OR APEX_SESSION.set_debug(p_session_id,p_level) debug messages are logged into internal rolling tables will be purged after x days (default 14)

30 Instance wide Debug debug level 9 - instance debug <id>. opens editor with debug details!attention! Every APEX session on the DB is debugged!!

31 View Debug Output

32 View Debug Output

33 Debug Overview

34 Debug Detail Information

35 View Debug Output

36 Debug Level 9 also shows the plan of executed queries

37 Trace

38 Activate Trace Mode in APEX f?p=app:page:session:::::&p_trace=yes OR APEX_SESSION.set_trace(p_session_id, SQL ) activates events (10046 trace name context forever, level 12) writes a message into APEX Debug log with the trace file identifier (as of APEX 18.1)

39 Trace File Identifier logged in APEX Debug *as of APEX **APEX 19.1 will also include trace file name

40 Programmatically activate Trace in PL/SQL Attention! This can generate tons of trace files. Will be called for every page render/submit/ajax!!!

41 Get Trace File Name (new in 12.2)

42 Get Trace File Content (12.2)

43 TKPROF or SQL Developer

44 TKPROF or SQL Developer

45 Enable/Disable Trace Instance wide APEX_INSTANCE_ADMIN.set_parameter( ENABLE_TRACE, N );

46 Hierarchical Profiler

47 The PL/SQL Hierarchical Profiler

48 Activate HPROF in APEX f?p=app:page:session:::::&p_trace=hprof OR APEX_SESSION.set_trace(p_session_id, HPROF ) activates sys.dbms_hprof.start_profiling writes a message into APEX Debug log with the hprof file name (as of APEX 18.1)

49 Programmatically activate HPROF in PL/SQL

50 HPROF in APEX needs some setup at first setup directory and grant privileges SQL> conn / as sysdba SQL> create directory tmp as '/tmp'; SQL> grant read,write on directory tmp to APEX_xxxxxx; SQL> grant execute on dbms_hprof to APEX_xxxxxx; SQL> grant execute on dbms_hprof to <parsing-schema>; configure profile directory SQL> conn APEX_xxxxxx/... SQL> exec wwv_flow_instance_admin.set_parameter('hprof_directory','tmp');

51 HPROF creates files on the DB Server

52 File content - not very readable

53 Convert HPROF.trc File to readable output plshprof -output report test.trc OR DBMS_HPROF.analyze('PLSHPROF_DIR', test.trc')

54 HTML Report

55 Visualize HPROF Output Data in APEX

56 Enable/Disable HPROF Instance wide APEX_INSTANCE_ADMIN.set_parameter( ENABLE_TRACE, N );

57 Helpful Links

58

59 More links and knowledge - my blog will feature more detailed posts on all those tools reference#analyze

60 Thanks! Follow FOEXPlugins foex-gmbh