Notice of the PGA in AWR report

Similar Questions

• about the scripts for AWR report data!

  Hi all.
  
  
  The oracle's 10 g 2.
  
  I would like to extract the following data by issuing a query, and not by AWR report.
  
  ----------------------------------------------------------------------------------------------
  1 load of overall profile cache
  ~~
  
  2. global Cache efficiency percentages (target local + remote100%)
  
  Access - local cache buffer %: 99.91
  Access - remote cache buffer %: 0.07
  Access - disk buffer %: 0.02
  
  
  3. global Cache and messaging statistics - Enqueue Services
  ~~
  
  ----------------------------------------------------------------------------------------------
  
  What is the data dictionary (DBA_HIST tables *) for the above data?
  
  You will be greatly appreciated if you give me an example of a query for them.
  
  Thanks in advance.
  Best regards.

  You can get the SQL code of sprepins.sql in $ORACLE_HOME/rdbms/admin

  Concerning
  Vincent

• questions about the awr report & sqlt

  Hi guys,.

  DB version: 10.2.0.5

  Need your advice.

  For my AWR report, I put the 30-day retention period. From my understanding, the information in awr report are taken from several views of dba_hist *.

  Points of view takes only those albums n intenstive SQL Statistics on resources?

  I ask this because I have a doubt. Let's say that on 18/03/2014, I detected a long SQL with sql id xxx.

  Using SQLT (such method), I can only see the historical performance of Plan (delta) for this particular SQLs 16/03, 17/03, 18/03.

  In this case, we can say that the SQLs shot only 3 days for the last 30 days? Or it can also mean that the particular SQL was not classfified at the top of the page resource n intensive 18/02 to 15/03 SQLs (probably use a better plan - for example: plan a different value)?

  Thank you

  That is right.

  Concerning

  Jonathan Lews

• How to take awr report

  A little confused in the generation of awr report using awrrpt.sql

  Here are the pictures that we have in the repository.

  	8257 November 13, 2013 02:00	1
  	8258 November 13, 2013 02:30	1
  	8259 November 13, 2013 03:00	1
  	8260 November 13, 2013 03:30	1
  	8261 November 13, 2013 04:00	1
  	8262 November 13, 2013 04:30	1

  And the test run we had was between 02:15 at 03:45.  What shots should I choose as the ID of the snap-snap-in begin end snap ID.

  I got this question when I saw how the shots were taken as snap ID 8258

  SNAP_ID BEGIN_INTERVAL_TIME

  END_INTERVAL_TIME

  --------- ------------------------------ ----------------------------

  8258 13 NOVEMBER 13 02.00.19.314 AM

  13 NOVEMBER 13 02.30.23.284 AM

  where I was going to select 8257 as the ID of the snap-snap-in begin.

  Which snap IDs makes more sense for the time window of 02:15 at 03:45.

  Thank you

  Siva.

  Yes, after 02:15 activity is recorded in wink 8258, because at the time the 8257 snap was taken (02:00) the workload has not watched yet. In order something to be registered, it must extend the instant collection interval. Instant is the current state of the instance, and if you set the snapshot collection at intervals of more than an hour, you might be missing information. Also there is no need to set the very short interval (provable 15 min.). An hour is an average value, and that's by default. On the first response I wrote snap 8527 because under 'time window' 8527 is correct snap_id, but in the context of statistical collection snap_id 8528 is correct.

  Post edited by: IvicaArsov

• question of AWR report

  Hi all

  Oracle 11 g RAC 2

  Solaris

  get below the question when awr report generating.

  type: report

  number of days: 10

  declare

  *

  ERROR on line 1:

  ORA-20200: Instant Begin Id 10020 does not exist for this database instance.

  ORA-06512: at line 22

  Please someone help me why over error. (Note am capable of generating the report of 5 days but not 10 days)

  Thank you

  Mike.

  Eventually, the retention period is less than 10 days?

  DBA_HIST_SNAPSHOT query to find the oldest snapshot available.

  Hemant K Collette

• A user to our small business reports that she one day noticed that the contents of its files to Outlook Express disappeared. Records are intact, but the messages have disappeared.

  Outlook express content of some files went

  A user to our small business reports that she one day noticed that the contents of its files to Outlook Express disappeared.  Records are intact, but the messages have disappeared.  Strangely, what happened to half of its files; the content in the other half is still there.

  She uses Outlook Express 6.

  Suggestions?

  Pamela

  In addition to comments of Bruce, likely OE compacted messages and in doing so, he probably wiped out the where they are absent.  Check your Inbox and message store bak files which are backups dbx files prior to compaction (see www.oehelp.com/OETips.aspx#2).  If you cannot find the bak files, then you will probably use the extract of the service drive of my DBXpress program (see www.oehelp.com/DBXpress/).

  Steve

• How to activate the keys to generate and view the AWR reports Developer SQL

  Version: 4.0.3.16

  Build: HAND - 16.84

  S/n > (sid) > Performance > AWR report viewer

  I am able to select the start and end ID, but the following buttons are disabled:

  • Entries Toggel
  • Generate the report
  • Save to file
  • Open in browser

  What needs to be done to enable these buttons?

  Hello

  After entering start Id and the Id of the end, the button "report" will be activated, and then after that the report generated (by clicking the report generate) rest buttons button is activated. As shown in the image below.

  

  Hope it will be useful.

  Kind regards

  Sanjaya

• Bug? : cannot execute predefined "last awr" report with the latest version of the SQL Developer

  Using sql developer before 4.x... report works fine

  Using SQL developer 4.0.0.13... report fails with ORA-01422

  using the actual query to generate awr against the same range of component snap works perfectly

  I opened a SR on the question

  Thank you

  It's always a good idea to open a SR when you are able.  I assume that you have already received a response from support.  For others I wondered about this, the question is likely related to running the report against a CCR environment, as indicated in the following bug:

  Bug 18132564 - LAST AWR REPORT FAILS WITH ORA-01422 IN CCR ENVIRONMENTS
  

  The call of the AWR report requires parameters for a DB and an ID of Instance, so that the report should run, as in earlier versions, for only the current instance, or be modified to run all instances in the cluster.

  Kind regards

  Gary

  SQL development team

  P.S.: And, in fact, a discussion prior forum - ai2 4.0-AWR and ASH giving ora-01427

  lead following bugs are connected and supposed to be fixed for SQL Developer 4.0...

  
  

  Bug 17481944 - PERFORMANCE PANELS NEED AWR/ASH/ADDM FOR RAC ENVIRONMENTS SUPPORT

  
  

  ... with the developer commenting

  I've added a number instance selection control to the various reports: ASH,.
  AWR, difference and SQL. The control is supposed to be visible when the
  connection is a RAC system, tests should a RAC.

  So if you are not on a RAC system, or are on CARS but do not see the selection number instance control, please let us know.

  Post edited by: Gary Graham

• The main events in AWR report

  Hi all

  11.2.0.1

  AIX 6.1

  I had this big event awr report.

  Can you help me how to interpret this please. Or what is the value of looking here?  Thank you very much

  The main events in AWR report

  I have

  n

  Snap              s       Snap                                                                                                    A

  Snap the t hard event time start Avgwt DB A

  Time event ID # (m) expected grade (s) (ms) % S waiting class

  ------ --------------- --- ---------- ---------------------------------------- ----- -------------- -------------- -------- ------- ------ ---------------

  13902 13/09/16 09:00 1 60.05 os thread start 1 140,00 11.08 79,11 56 0,0 Concurrency

  13902 13/09/16 09:00 60.05 1 CPU time 2 0.00 0.00 9,45 48 0.0 CPU

  13902 13/09/16 09:00 1 60.05 log file parallel write 3 1506.00 1.84 1.22 9 0.0 IO system

  13902 13/09/16 09:00 1 60.05 control file parallel write 4 1291.00 1.41 1.09 7 0.0 IO system

  13902 13/09/16 09:00 1 log file sync 60.05 5 721.00 1.03 1.43 commit 5 0.0

  13903 13/09/16 10:00 1 60.05 os thread start 1 138.00 10.36 75,10 47 0.0 Concurrency

  13903 13/09/16 CPU 60.05 1 10:00 hour 2 0.00 0.00 10,28 47 0.0 CPU

  13903 13/09/16 10:00 1 60.05 log file parallel write 3 1575.00 1.73 1.10 8 0.0 IO system

  13903 13/09/16 10:00 1 60.05 direct path read 3 486.00 1.73 3.56 8 0.0 IO user

  13903 13/09/16 10:00 1 60.05 control file parallel write 4 1285.00 1.51 1.17 7 0.0 IO system

  13903 13/09/16 10:00 1 log file sync 60.05 5 823.00 1.08 1.32 commit 5 0.0

  13904 13/09/16 11:00 60.05 1 CPU time 1 0.00 17,06 0.00 CPU 32 0.0

  13904 13/09/16 11:00 1 60.05 os thread start 2 145.00 10,65 73.46 20 0.0 Concurrency

  Thanks, I just tell the users, there is no problem in the comic book, and the stats is normal and no suspiscious activity and that the problem is in the minds of users only.

• What is the measure of the value "Waiting" in AWR report?

  Event	Expected	% Time - out	Wait total (s) times	AVG wait (ms)	Waiting for /txn
  SQL * Net more data from dblink	406 747		466	1	184.13
  reading of scattered files DB	28 659		330	12	12.97
  SQL * Net message from dblink the	30 115		254	8	13.63
  log file parallel write	21 021		177	8	9.52

  Hi all

  As the example below, I question what is the measure of the value "Waiting" in the section "event wait" AWR report?

  Because "Expected" the value is high, but "Queue time Total (s)" is low. example "SQL * Net message from dblink the" a 30 115 "expected' but 'Queue time Total (s)' lower 'DB file scattered read' w 28 659 'wait '.

  Could you please explain more about the value "waiting"?

  Thank you

  Hiko

  taohiko wrote:

  Event	Waits	%Time -outs	Wait total (s) times	Avg wait (ms)	Waits /txn
  SQL * Net more data from dblink	406 747		466	1	184.13
  reading of scattered files DB	28 659		330	12	12.97
  SQL * Net message from dblink the	30 115		254	8	13.63
  log file parallel write	21 021		177	8	9.52

  Hi all

  As the example below, I question what is the measure of the value "Waiting" in the section "event wait" AWR report?

  It is simply a... count the number of times where the system had to "WAIT" on the specified event.

  Because "Expected" the value is high, but "Queue time Total (s)" is low. example "SQL * Net message from dblink the" a 30 115 "expected' but 'Queue time Total (s)' lower 'DB file scattered read' w 28 659 'wait '.

  Watch "AVG time-out.    In one case, there are fewer occurrences of the event, but the average wait by event time was higher.

  If I buy 3 burgers and pay $1000 each

  or I buy 500 burgers and pay $1.00 each.

  Why 3 hamburgers cost more than 500 burgers?

  Could you please explain more about the value "waiting"?

  "Waiting" is the number of times that the system had to wait for the named event, during the sampling period.

  "Total wait time" is the total time (measured in seconds) spent waiting on all occurrences of the specified event, during the sampling period.

  "Avg" wait"is the time (expressed in milliseconds) means spent on each occurrence of the specified event, during the sampling period.

  It seems pretty obvious.  You count how many times it happens something (wait), you measure it, time spent doing this something fracture (total wait time) and tells you the total time spent (total wait time) by the number of times it happened (waits) to find out the average time spent on each occurrence of that something.

  Thank you

  Hiko

• AWR report cannot locate the bad SQLs

  DB version: 11.2.0.2
  Platform: Solaris 10
  
  In our data base RAC 2 nodes, we have patterns of 20 applications. When an application is faced with performance problems, we try to generate AWR for the period in question. But the stats (like bad SQLs) for this scheme to be buried because there is another application SQLs performing even worse.
  
  I know that we cannot create AWR report for specific patterns. But I wonder how his stats are collected in a multi-schema RAC environments that will differentiate between applications.

  But the stats (like bad SQLs) for this scheme to be buried because there is another application SQLs performing even worse.

  Since all applications run in a database and query of the other application run bad then they will be the first candidate of tunning since these are taking more resources and impact on other application requests.
  You can also generate report of ASH for module specific or customer with assistance from under the option set in report of ash.

  set target_module_name = ";
  set target_action_name = ";
  set target_client_id = ";

• that means the great value of 'Call' recursive % in AWR report?

  Hi all.
  
  I saw "call recursive %: 85%" supported the section profile an awr report.
  --> This could be a problem?
  --> otherwise, depends on the type of application?
  
  ---
  
  From my understanding,.
  
  1. the client calls-> calls DBMS user
  2 recursive calls-> calls for DBMS internal, such as the process of background, function or procedures.
  
  ---
  
  I would like to hear about your experience.
  
  Thanks in advance.
  Best regards.

  a recursive call is a call, for example, which must be completed before the user SQL can be completed.

  Read this to understand what I mean:

  http://it.Toolbox.com/blogs/confessions/how-Oracle-really-works-27-recursive-calls-20300

  Osama...

• The AWR report.

  I received a task to read the AWR report, what do I really see in the AWR report? The report I got is 11Hours where they have a lot of data migrations. I know how to take AWR report, but I'm not really sure. What I find in report AWR to ensure that the database performs well during the migration.
  

  select * from v$version
  BANNER                                                                           
  -------------------------------------------------------------------------------- 
  Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production     
  PL/SQL Release 11.2.0.2.0 - Production                                           
  CORE     11.2.0.2.0     Production                                                         
  TNS for HPUX: Version 11.2.0.2.0 - Production                                    
  NLSRTL Version 11.2.0.2.0 - Production                                           

  An AWR report has a ton of information - covering how read all sections (and then how to answer) would mean at least a book.

  Level the most basic, however, you want to probably take a look at the events of top 5 waiting to see that the database is waiting, the time of database is average time spent vs in the header to see how busy the database, and the various statements of Top SQL by x to see the SQL statements are represented the majority of the database is waiting to see what statements could be tuned to improve performance.

  Justin

• Default location of the AWR report in windows?

  Can someone please tell me the default location of the AWR report for Oracle 10 g for Windows?

  In the current directory, you are when it is connected to the database to generate the report.

  Nicolas.

• The AWR reports specific to the instance or scale the database?

  I could not find references to documentation which clearly indicates an AWR report generated in a RAC database instance if the specific instance or it contains all instances of database RAC (aggregated) information. Can someone tell me please to resources which should clarify this point.
  
  Env: 10.2.0.4
  
  Published by: user589121 on September 29, 2009 12:15

  Hope this helps:
  [Automatic repository of the workload in Oracle RAC environments | http://download.oracle.com/docs/cd/E11882_01/rac.112/e10718/monitor.htm#i1009926]

  -André