Section of the AWR report

Similar Questions

• 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.

• 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

• 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 can I rearrange the columns in the not displayed section of the interactive report.

  Hello

  My interactive report contains 185 columns and requieres users to build its reports with some columns, but he gets lost between this amount of columns, it would be easier if the columns in the do not display the interactive report section would be automatically sorted, is it possible?

  Thank you very much

  Hi Eva,

  A solution would be to order the column names in alphabetical order. You can create a dynamic JavaScript action to manage the sort.

  The shuttle of the attribute IR "Select columns" have the ID "apexir_SHUTTLE_LEFT" or hidden columns and 'apexir_SHUTTLE_RIGHT' to the displayed columns.

  The function that you create might look like:

  var options = $('select#apexir_SHUTTLE_LEFT option');
  var arr = options.map(function(_, o) { return { t: $(o).text(), v: o.value }; }).get();
  arr.sort(function(o1, o2) { return o1.t > o2.t ? 1 : o1.t < o2.t ? -1 : 0; });
  options.each(function(i, o) {
    o.value = arr[i].v;
    $(o).text(arr[i].t);
  });
  
  var options = $('select#apexir_SHUTTLE_RIGHT option');
  var arr = options.map(function(_, o) { return { t: $(o).text(), v: o.value }; }).get();
  arr.sort(function(o1, o2) { return o1.t > o2.t ? 1 : o1.t < o2.t ? -1 : 0; });
  options.each(function(i, o) {
    o.value = arr[i].v;
    $(o).text(arr[i].t);
  });
  

  You need to find the right timing for dynamic action to run, I suppose the click on the button "Select columns" would do the trick.

  Kind regards

  Vincent

  http://vincentdeelen.blogspot.com

• 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

• How to find the total number of queries from the awr report

  Hi all
  
  Is it possible to find on the total number of queries fired on the database of an AWR report.

  No, it means that there are 26,459,500 executions and captured SQLs accounts 93.9% of total executions, i.e. the 24 845 execs 470.5.

• What exactly is "enq: KO - checkpoint fast object" in the AWR reports

  Hello
  
  We are profiling the performance of the application of a third party, and the CWA report shows a significant amount of time (about 30% of the time of the DB) dedicated to that wait on the event.
  
  I can't find any documentation on it and a search here shows anything either.
  
  For what is this wait event associated with? What kind of SQL/model using the application may cause this?
  
  Looking at the views from ASHES, it seems that this is mainly caused by a SELECT statement.
  
  
  Thank you
  Thomas

  The above link contains a very fine definition of Jones.

  Why it happens I think you're running of database 11 g and a lot of reading of direct path (the new way to do a FTS (& Fast restricted full index scan) in 11 g where Oracle directly reads things in PGA of a process) occur. What you need to consider is what is it really a problem? or simply that you see this top in the events of waiting?

  Published by: amardeep.sidhu on June 26, 2012 16:07

• 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

• 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...

• 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

• Details of SQL query in AWR report

  Hello
  
  In the AWR report, I found that there are a few SQL with full table scan queries
  How drill us in this topic and find which table have full analysis
  
  Yes with Explain plan we can do but is there another way in Oracle 11g
  Please let me know
  
  
  See you soon

  Knight wrote:

  In the AWR report, I found that there are a few SQL with full table scan queries
  How drill us in this topic and find which table have full analysis

  Yes with Explain plan we can do but is there another way in Oracle 11g
  Please let me know

  What, exactly, you look in the AWR report allowing you to decide that some SQL statements are complete tablescans but, at the same time, don't show you the tables that are being analyzed?

  If the statement is visible in the SQL "order by...» "sections of report then execution plans and workloed for education is also in the AWR. You can access either from Enterprise Manager, either by running the report $ORACLE_HOME/rdbms/admin/awrsqrpt.sql.

  Concerning
  Jonathan Lewis
  http://jonathanlewis.WordPress.com
  Author: core Oracle

• ANALYSYS AWR REPORT

  Hi all, can tell me the procedure to analyze the AWR reports?

  Here is a link to some documents which will give you a good overview.
  http://www.Oracle.com/technetwork/database/focus-areas/performance/tips-perf-AWR-SQL-report-129542.PDF
  http://www.nyoug.org/presentations/2008/Sep/Ault_AWR.PDF

  Have you read through the material in the database Performance Tuning Guide?
  http://docs.Oracle.com/CD/B28359_01/server.111/b28274/AutoStat.htm#i27008

  See section 5.2 Overview of the automatic workload repository

• Number of processors and cores in AWR report

  Hello

  I have a report AWR to my system and a couple of entries confuse me.

  Q1. It's showing 3 carrots, 2 Sockets and 4 processors. The CPU and the Sockets, I understand that 2 chips with 2 processors per chip so 4 CPU.

  What confuses me, is the fact that it shows 3 carrots. Is that that by CPU cores? Othererwise 3-4 makes no sense?

  Q2. What is the difference between DB, time CPU and CPU DB?

  My understanding is that DB time is the time used by the process, including the time processor and wait time. Because a system can have more than one processor, it is quite natural that DB time may exceed to elapse time - since you have multiple processors that contribute to this time (I guess that DB time cannot be really more time elapse * our processors?)

  In fact, you could say if DB time does not exceed the time to elapse, then you have a Nock idle system?

  My understanding of time CPU, is that it's time where each process actually gets treatment CPU (so it does not time-out). I think that the AWR report confusingly used the term time CPU and CPU DB, to mean the same thing?

  clearly greatly appreciated

  Jim

  
  

  Hi Jimbo,

  Q1. "Nuclei" in the CWA report represents the quantity of physical processor cores and the "processors" takes into account the simultaneous multithreading so in your case, one option could be a CPU Socket has a dual core (not type hyperthreading) and the other CPU Socket has one heart (hyperthreaded). If this is the case, you will have 3 physical 4 CPU cores, (because it takes into account the hyper-threaded architecture) and 2 taken. It's just an option, you will need to check it out.

  Q2. No-Idle wait events are events that are not classified by Oracle as a "Idle" of events to wait wait:

  • Example of Idle wait-event: SQL * Net client message (server process is waiting for the client process to do something)
  • Idle wait-event example: db file scattered read (event waiting user IO representing a multilock read as full scan of the table or full scan small index.
  • You can get a complete list of active waiting events by running:

  Select name from v$ event_name where wait_class <> "inactive".

  • You can get a full list of the events of inactive waiting by running:

  Select name from v$ event_name where wait_class = 'Idle '.

  
  

  DB time is therefore the sum of all events of active waiting and also the CPU time that is a statistic:

  • You can see the value of the amount of time CPU in 10s of miiliseconds (centisecondes) for an exeuting session:

  SELECT THE VALUE

  FROM v$ sesstat JOIN v$ statname USING (statistics #)

  WHERE name = 'CPU used by this session' AND SID =

  • You can see the value of the time total CPU in 10s of milliseconds (centisecondes) for the instance of exeuting:

  SELECT the value from v$ sysstat

  WHERE name = 'CPU used by this session.