December 2, 2008 07:27am pst

1. sdstuber 458,189
2. angelIII 153,038
3. schwertner 149,572
4. sujith80 78,732
5. johnsone 64,742
6. nav_kum_v 64,639
7. jinesh_ka... 63,800
8. MikeOM_... 61,900
9. dvz 56,898
10. shajukg 50,631
11. DrSQL 45,091
12. joebednarz 39,310
13. sonicefu 38,006
14. markgeer 37,712
15. Milleniuma... 32,597
16. awking00 32,381
17. dbmullen 30,924
18. slightwv 27,650
19. aiklamha 21,393
20. rolutola 17,100
21. DiscoNova 16,078
22. sventhan 15,841
23. Dr_Billy 14,314
24. Sqaimes 14,194
25. Henka 13,364

1. sdstuber 510,384
2. angelIII 298,585
3. schwertner 235,912
4. sujith80 175,888
5. nav_kum_v 127,755
6. johnsone 119,189
7. jinesh_ka... 101,400
8. MikeOM_... 92,900
9. markgeer 84,906
10. jwahl 69,523
11. slightwv 68,195
12. dvz 64,773
13. YANN0S 58,491
14. joebednarz 52,716
15. shajukg 50,631
16. DrSQL 45,091
17. awking00 42,831
18. sonicefu 41,806
19. paquicuba 39,780
20. rbrooker 33,769
21. Milleniuma... 32,597
22. dbmullen 30,924
23. gattu007 30,342
24. LindaC 28,471
25. Akenathon 28,390

12.13.2007 at 07:23PM PST, ID: 23022837

	[x] Attachment Details

[x]

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9.0

Analysing tkprof results from a web session?

Asked by DiscoNova in Oracle 9.x

Tags: tkprof, execute, hard

I set up trace on a web application I'm working on. I manually refreshed the page five times, and got the following results that are included in the "code snippet" (the actual SQL (which is an "INSERT AS SELECT" executed through a database link into a temporary table after which more operations on the result set are performed) has been snipped):

I'm a bit baffled by the results.
1) Does this mean that the first time I ran this, a hard parse was done on the query, and the following refreshes were only soft parses?
2) Am I to expect (due to the stateless nature of web applications) that since this query is executed every time the report is generated, that the parses will always be this "high" compared to the executes?

The reason I'm asking these is that I'm a lot more used to seeing just a few parses compared to the number of executes/fetches in tkprof reports. Of course, normally I don't run the tool on web sessions, so I'm propably "out of my turf" on this one.

The system is Oracle 9.2.0.8 on Win32 platform accessed through Apache+mod_plsql.Start Free Trial

         
           
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             call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        5      0.01       0.01          0          0          0           0
Execute      5      0.70       0.72          0      45388      10058        3560
Fetch        0      0.00       0.00          0          0          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total       10      0.71       0.73          0      45388      10058        3560
 
Misses in library cache during parse: 1
Optimizer goal: CHOOSE
Parsing user id: 47     (recursive depth: 1)
 
Rows     Row Source Operation
-------  ---------------------------------------------------
    712  COUNT  
    712   VIEW  
    712    SORT ORDER BY 
    712     MERGE JOIN CARTESIAN 
    712      TABLE ACCESS BY INDEX ROWID APPLICATION 
    713       INDEX RANGE SCAN APPLICATIONS_SEARCH_GENERIC2 (object id 33223)
   2465        INDEX RANGE SCAN APPLICATION_VACANCY_IX (object id 33487)
      0        INDEX UNIQUE SCAN APPLICATION_VACANCY_LINK_PK (object id 30748)
    712      BUFFER SORT 
      1       TABLE ACCESS FULL DUAL 
 
 
Elapsed times include waiting on following events:
  Event waited on                             Times   Max. Wait  Total Waited
  ----------------------------------------   Waited  ----------  ------------
  SQL*Net message to dblink                       3        0.00          0.00
  SQL*Net message from dblink                     3        0.00          0.00
********************************************************************************

           
         

Keywords: Analysing tkprof results from a web se…

	Title
1	TKPROF
2	tkprof
3	TKPROF
4	TKPROF ?
5	running tkprof
6	stateless http

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20080716-EE-VQP-32 / EE_QW_EXPERT_20070906

Analysing tkprof results from a web session?

Asked by DiscoNova in Oracle 9.x

Tags: tkprof, execute, hard

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