Improve Performance with QaaWS with multiple RefreshButtons??

HI,
I read, that a connection opens maximal 2 QaaWS. I want to improve Performance.
Currently I tried to refresh 6 connections with one Button. Would it improve performance if I split this 1 Button with 6 Connections to 3 buttons each 2 connections ?
Thanks,
BWBW

Hi
HTTP 1.1 limits the number of concurrent HTTP requests to maximum two, so your dashboard will actually be able to send & receive maximum 2 request simultaneously, third will stand-by till one of those first two is handled.
QaaWS performance is mostly affected by database performance, so if you plan to move to LO to improve performance, I'd recommend you use LO from WebI parts, as if you use LO to consume a universe query, you will experience similar performance limitations.
If you actually want to consume WebI report parts, and need report filters, you can also consider XI 3.1 SP2 BI Services, where performance is better than QaaWS, and interactions are also easier to implement.
Hope that helps,
David.

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Improve performance with union all

Hello there,
Oracle Database 11g Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
SQL> show parameter optimizer
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select ct.*
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select t1.*
from tabel1 t1
 join tabel2 t2
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 join tabel4 t4
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and ct.date < :enddate
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I tried the following thing, which was actually even slower!
with t1c as
select t1.*
from tabel1 t1
 join tabel2 t2
 on t2.key = t1.key
where t1.id = :id
and t1.date >= :startdate
and t1.date < :enddate
t2c as
select t3.*
from tabel3 t3
 join tabel4 t4
 on t4.key = t3.key
where t3.id = :id
and t3.date >= :startdate
and t3.date < :enddate
select ct.*
from
select *
from t1c
union all
select *
from t2c
order by ct.dateSo in words, I have an 'union all' construction reading from different tables with matching columns 'id' and 'date'.
How can I improve this? Can it be improved? If you do not know the answer, but maybe a suggestion, I will be happy aswell!!!
Thanks in advance!
Kind regards,
Metroickha

>
So in words, I have an 'union all' construction reading from different tables with matching columns 'id' and 'date'.
How can I improve this? Can it be improved? If you do not know the answer, but maybe a suggestion, I will be happy aswell!!!
>
If you want to improve on what Oracle is doing you first need to know 'what Oracle is doing'.
Post the execution plans for the query that show what Oracle is doing.
Also post the DDL for the tables and indexes and the record counts for the tables and ID/DATE predicates.

Complex query - improve performance with nested arrays, bulk insert....?

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some questions:
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Performance with multiple out refcursors

Hello,
I've created a sp with 10 output refcursors, it is actually to fetch Programinfo from the database.
earlier i had used 4-5 seperate sp's and called them from C# code, and it was taking abt 70-100 millisec to fetch one program.
Now i wanted to improve the performance, and i tried to create a simgle sp which has 10 output refcursors, now this is taking abt 110-1125 ms to fetch one program.
i'm pasting below the new sp i've writtten, please let me know how I can imprrve the performance, please help me, thanks - shruti
PROCEDURE "CPADMIN"."CPX_SP_FETCH_PROGRAMINFO_N" (
"I_PROGRAMID" IN NUMBER,
"I_VERSION" IN NUMBER,
"O_REFCUR" OUT SYS_REFCURSOR,
"O_REFCUR1" OUT SYS_REFCURSOR,
"O_REFCUR2" OUT SYS_REFCURSOR,
"O_REFCUR3" OUT SYS_REFCURSOR,
"O_REFCUR4" OUT SYS_REFCURSOR,
"O_REFCUR5" OUT SYS_REFCURSOR,
"O_REFCUR6" OUT SYS_REFCURSOR,
"O_REFCUR7" OUT SYS_REFCURSOR,
"O_REFCUR8" OUT SYS_REFCURSOR,
"O_REFCUR9" OUT SYS_REFCURSOR
) IS
-- SP Name : CPX_SP_FETCH_PROGRAMINFO
-- Description : Fetches program Info by ProgramID
-- Input Param : I_PROGRAMID - EventID
--                    I_VERSION - Program Version
-- Output Param : O_REFCUR - refcursor
-- Output Param : O_REFCUR1 - refcursor for final languages
-- Output Param : O_REFCUR2 - refcursor for genre
-- Output Param : O_REFCUR3 - refcursor for category
-- Output Param : O_REFCUR4 - refcursor for numeric fields
-- Output Param : O_REFCUR5 - refcursor for date fields
-- Output Param : O_REFCUR6 - refcursor for credit language id
-- Output Param : O_REFCUR7 - refcursor for credits data
-- Output Param : O_REFCUR8 - refcursor for credits data
-- Output Param : O_REFCUR9 - refcursor for credits data
-- Tables : CPX_Program, CPX_PROGRAM_VERSION
-- Created By : Shruti Lalwani - 24Jan2008
-- Change History : shruti lalwani - 26 Mar 2008
-- removed the LanguageId input param
intCnt number;
intIsFinal number;
intPVersion number;
intLVersion number;
strLanguage varchar2(100);
intSchCnt number;
BEGIN -- executable part starts here
if I_VERSION > 0 then
     -- get the particular version from cpx_program_version
     select count(*) into intCnt
     from CPX_PROGRAM Prg
     inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
     and Prg.ID = I_PROGRAMID
     and PrgV.VErsion = I_VERSION;
     if intCnt > 0 then
          open o_refcur for
          select Prg.ID as ProgramID, Prg.Type_ID as PrgType,
          PrgV.VErsion as ProgramVersion, Prg.Schedule_Only, Prg.Origin, Prg.Status_ID as StatusId,
          nvl(Prg.IN_USE_BY,0) as IN_USE_BY_ID,
          nvl((select Usr.Display_Name from CPX_User Usr where ID= Prg.IN_USE_BY),' ') as IN_USE_BY_NAME,
          nvl(in_use_since,TO_DATE('1-Jan-1970','DD-MON-YY HH:MI:SS AM')) as In_Use_since, Prg.Latest_Version as Latest_Version
          --in_use_since as In_Use_since, Prg.Latest_Version as Latest_Version
          from CPX_PROGRAM Prg
          inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
          and Prg.ID = I_PROGRAMID
          and PrgV.VErsion = I_VERSION;
          open o_refcur1 for
          select DISTINCT PrgContT.Language_ID as LanguageID
          from CPX_PROGRAM Prg
          inner join CPX_PROGRAM_CONTENT_TEXT PrgContT on Prg.ID = PrgContT.Program_ID
          and PrgContT.Program_version = (case when I_VERSION > 0 then I_VERSION else Prg.Latest_version end)
          and Prg.ID = I_PROGRAMID
          and PrgContT.Language_id >= 0;
          open o_refcur2 for
          select PrgText.Field_Id as FieldID, PrgText.Content as Content, PrgText.Variant_Id as VariantId,PrgText.Language_ID as Language_ID
          from CPX_Program_Content_Text PrgText
          inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgText.Program_Id
          inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
          inner join CPX_Language lang on PrgText.Language_Id= lang.ID
          and PrgV.Version = PrgText.Program_version
          and Prg.Id= I_PROGRAMID and PrgV.Version = I_VERSION
          order by PrgText.Language_ID, FieldId asc;
          select schedule_only into intSchCnt
          from CPX_PROGRAM Prg
          inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
          and Prg.ID = I_PROGRAMID
          and PrgV.VErsion = I_VERSION;
          -- fetch only for real program
          if intSchCnt = 0 then
               open o_refcur3 for
               select language_id, version
               from CPx_PROGRAM_LANGUAGE_STATUS
               where program_id = I_PROGRAMID and version > 0;
               open o_refcur4 for
               select      PrgG.Genre_Id as GenreID
               from CPX_PROGRAM Prg
               inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
               inner join CPX_PROGRAM_GENRE PrgG on PrgG.Program_id = Prg.ID
               and Prg.ID = I_PROGRAMID
               and PrgV.VErsion = I_VERSION
               and PrgG.Program_version = PrgV.VErsion;
               open o_refcur5 for
               select PrgCat.Category_Id as CategoryID
               from CPX_PROGRAM Prg
               inner join CPX_PROGRAM_CATEGORY PrgCat on Prg.ID = PrgCat.Program_ID
               and PrgCat.Program_version = (case when I_VERSION > 0 then I_VERSION else Prg.Latest_version end)
               and Prg.ID = I_PROGRAMID;
               open O_RefCur6 for
               select PrgNum.Field_Id as FieldID, PrgNum.Content as Content, PrgNum.Variant_Id as VariantId
               from CPX_Program_Content_Number PrgNum
               inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgNum.Program_Id
               inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
               and PrgV.Version = PrgNum.Program_version
               and Prg.Id= I_PROGRAMID and PrgV.Version = I_VERSION
               order by FieldId asc;
               open O_RefCur7 for
               select PrgDate.Field_Id as FieldID, PrgDate.Content as Content
               from CPX_Program_Content_Date PrgDate
               inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgDate.Program_Id
               inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
               and PrgV.Version = PrgDate.Program_version
               and Prg.Id= I_PROGRAMID and PrgV.Version = I_VERSION
               order by FieldId asc;
               open o_refcur8 for
               select DISTINCT PrgCredit.Language_ID as LanguageID
               from CPX_PROGRAM PRg
               inner join CPX_PROGRAM_CREDIT PrgCredit on Prg.ID = PrgCredit.Program_ID
               and PrgCredit.Program_version = (case when I_VERSION > 0 then I_VERSION else Prg.Latest_version end)
               and Prg.ID = I_PROGRAMID
               and PrgCredit.Language_id >= 0;
               open O_RefCur9 for
               select PrgCr.Role_Id as RoleID, PrgCr.Person_Id as PersonID, PrgCr.character as Character,
               PrgCr.Sequencenr as Sequencenr, Person.first_name as First_Name , Person.Last_Name as Last_Name,Language_ID
               from CPX_Program_Credit PrgCr
               inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgCr.Program_Id
               inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
               inner join CPX_Person Person on PrgCr.Person_ID = Person.ID
               and PrgV.Version = PrgCr.Program_version
               and Prg.Id= I_PROGRAMID and PrgV.Version = I_VERSION
               order by PrgCr.Language_ID,PrgCr.Sequencenr asc;
          end if;
     end if;
else
     -- get the latest version from cpx_program
     if I_VERSION = -1 then
          select count(*) into intCnt
          from CPX_PROGRAM Prg
          inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
          and Prg.Latest_Version = PrgV.Version
          and Prg.ID = I_PROGRAMID;
          if intCnt > 0 then
               open o_refcur for
               select Prg.ID as ProgramID, Prg.Type_ID as PrgType,
               Prg.Latest_VErsion as ProgramVersion, Prg.Schedule_Only, Prg.Origin, Prg.Status_ID as StatusId,
               nvl(Prg.IN_USE_BY,0) as IN_USE_BY_ID,
               nvl((select Usr.Display_Name from CPX_User Usr where ID= Prg.IN_USE_BY),' ') as IN_USE_BY_NAME,
               nvl(in_use_since,TO_DATE('1-Jan-1970','DD-MON-YY HH:MI:SS AM')) as In_Use_since, Prg.Latest_Version as Latest_Version
          --in_use_since as In_Use_since, Prg.Latest_Version as Latest_Version
          from CPX_PROGRAM Prg
               inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
               and Prg.Latest_Version = PrgV.VErsion
               and Prg.ID = I_PROGRAMID;
               open o_refcur1 for
               select DISTINCT PrgContT.Language_ID as LanguageID
               from CPX_PROGRAM Prg
               inner join CPX_PROGRAM_CONTENT_TEXT PrgContT on Prg.ID = PrgContT.Program_ID
               and PrgContT.Program_version = (case when I_VERSION > 0 then I_VERSION else Prg.Latest_version end)
               and Prg.ID = I_PROGRAMID
               and PrgContT.Language_id >= 0;
               open o_refcur2 for
               select PrgText.Field_Id as FieldID, PrgText.Content as Content, PrgText.Variant_Id as VariantId,PrgText.Language_ID as Language_ID
               from CPX_Program_Content_Text PrgText
               inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgText.Program_Id
               inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
               inner join CPX_Language lang on PrgText.Language_Id= lang.ID
               and Prg.Latest_Version = PrgV.Version
               and PrgV.Version = PrgText.Program_version
               and Prg.Id= I_PROGRAMID
               order by PrgText.Language_ID, FieldId asc;
               select schedule_only into intSchCnt
               from CPX_PROGRAM Prg
               inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
               and Prg.Latest_Version = PrgV.VErsion
               and Prg.ID = I_PROGRAMID;
               -- fetch only for real program
               if intSchCnt = 0 then
                    open o_refcur3 for
                    select language_id, version
                    from CPx_PROGRAM_LANGUAGE_STATUS
                    where program_id = I_PROGRAMID and version > 0;
                    open o_refcur4 for
                    select      PrgG.Genre_Id as GenreID
                    from CPX_PROGRAM Prg
                    inner join CPX_PROGRAM_VERSION PrgV on Prg.ID=PrgV.Program_ID
                    inner join CPX_PROGRAM_GENRE PrgG on PrgG.Program_id = Prg.ID
                    and Prg.Latest_Version = PrgV.Version
                    and PrgG.Program_version = PrgV.VErsion
                    and Prg.ID = I_PROGRAMID;
                    open o_refcur5 for
                    select PrgCat.Category_Id as CategoryID
                    from CPX_PROGRAM Prg
                    inner join CPX_PROGRAM_CATEGORY PrgCat on Prg.ID = PrgCat.Program_ID
                    and PrgCat.Program_version = (case when I_VERSION > 0 then I_VERSION else Prg.Latest_version end)
                    and Prg.ID = I_PROGRAMID;
                    open O_RefCur6 for
                    select PrgNum.Field_Id as FieldID, PrgNum.Content as Content, PrgNum.Variant_Id as VariantId
                    from CPX_Program_Content_Number PrgNum
                    inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgNum.Program_Id
                    inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
                    and Prg.Latest_Version = PrgV.Version
                    and PrgV.Version = PrgNum.Program_version
                    and Prg.Id= I_PROGRAMID
                    order by FieldId asc;
                    open O_RefCur7 for
                    select PrgDate.Field_Id as FieldID, PrgDate.Content as Content
                    from CPX_Program_Content_Date PrgDate
                    inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgDate.Program_Id
                    inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
                    and Prg.Latest_Version = PrgV.Version
                    and PrgV.Version = PrgDate.Program_version
                    and Prg.Id= I_PROGRAMID
                    order by FieldId asc;
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                    select DISTINCT PrgCredit.Language_ID as LanguageID
                    from CPX_PROGRAM PRg
                    inner join CPX_PROGRAM_CREDIT PrgCredit on Prg.ID = PrgCredit.Program_ID
                    and PrgCredit.Program_version = (case when I_VERSION > 0 then I_VERSION else Prg.Latest_version end)
                    and Prg.ID = I_PROGRAMID
                    and PrgCredit.Language_id >= 0;
                    open O_RefCur9 for
                    select PrgCr.Role_Id as RoleID, PrgCr.Person_Id as PersonID, PrgCr.character as Character,
                    PrgCr.Sequencenr as Sequencenr,Person.first_name as First_Name , Person.Last_Name as Last_Name, Language_ID
                    from CPX_Program_Credit PrgCr
                    inner join CPX_PROGRAM_VERSION PrgV on PrgV.Program_Id = PrgCr.Program_Id
                    inner join CPX_PROGRAM Prg on Prg.Id= PrgV.Program_Id
                    inner join CPX_Person Person on PrgCr.Person_ID = Person.ID
                    and Prg.Latest_Version = PrgV.Version
                    and PrgV.Version = PrgCr.Program_version
                    and Prg.Id= I_PROGRAMID
                    order by PrgCr.Language_ID,PrgCr.Sequencenr asc;
          end if;
          end if;
     end if;
end if;
END "CPX_SP_FETCH_PROGRAMINFO_N";

This is remarkably ugly from the standpoint of fetching all of this information using separate REF CURSORS because you seem to be hitting the same tables, for example "CPX_PROGRAM," again and again and again. Why not hit the tables once, load an interim result set into an array and then use that subset of your table data to then extract what you need?

Improving performance with overlapping MCs?

I'm having some performance issues in certain areas of a flash game Im making.
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Everything runs fine untill the large map is zoomed in and/or scrolled such that the right side buttons and stuff are overlapping them map. Then the framerate jumps down from a nice smooth 30 fps to about 3 fps while the map is moving. There are no issues with the map moving when they don't overlap.
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At the moment, I've had to resort to making the _visible property of the button pannel = false during the sim stage. However, this is not an ideal solution, it's just what I've had to resort to to be able to test the workings of the game. eventually, I'll want the player to be able to see how the commands are executing while the sim is running.

Live Performances, with multiple harware????

I just bought a powerbook, and live 5..
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the powerbook only has one usb slot and one firewire slot.
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I've bought a usb hub (dosen't work?"
the guys ant apple tell me I cant but a firewire hub...
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really? I had picked up one of those belkin stackable usb hubs, and nothing worked through it, even my xkeys didn't read???
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Hi,
 
We just move to WL 9 and the development response time is quite slow compare to 8.1.
 
Does anyone think that using only the WL Express 9 license could improve the performance since must of the features will be disabled ?
 
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Hi,
You can refer to the following URL on asktom website for detailed explanation about IN & Exists
http://asktom.oracle.com/pls/ask/f?p=4950:8:3465613697817080707::NO::F4950_P8_DISPLAYID,F4950_P8_B:953229842074,Y
HTH
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If the prob is not clear enough please feel free to make questions.
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Giovanni
EDIT
How can I be 100% sure that the TcpNoDelay was correctly used? Shall I specify it somehow also in the ServerSocket? Or in teh Socket obj is enough??
Edited by: nemo83 on Oct 4, 2011 1:33 AM

How is this different from your RMI Network Performances degradation?
Locking.

How to Improve performance with beans and Sessions

Instead of using so many session variables, can i use a bean object which will hold all the variables, then put that bean object in a session.
How it will effect the performance and how abt memory, which it will consume.

Why would you have to scope so many variables in the session? Exactly how much information do you actually need to maintain throughout an entire user visit? You may want to review your scope for variables. I have discovered that for the most part, I only need to keep most data for the life of the page that uses it.

How to tune performance of a cube with multiple date dimension?

Hi,
I have a cube where I have a measure. Now for a turn time report I am taking the date difference of two dates and taking the average, max and min of the date difference. The graph is taking long time to load. I am using Telerik report controls.
Is there any way to tune up the cube performance with multiple date dimension to it? What are the key rules and beset practices for a cube to perform well?
Thanks,
Amit

Hi amit2015,
According to your description, you want to improve the performance of a SSAS cube with multiple date dimension. Right?
In Analysis Services, there are many tips to improve the performance of a cube. In this scenario, I suggest you only keep one dimension, and only include the column which are required for your calculation. Please refer to "dimension design" in
the link below:
http://www.mssqltips.com/sqlservertip/2567/ssas--best-practices-and-performance-optimization--part-3-of-4/
If you have any question, please feel free to ask.
Simon Hou
TechNet Community Support

Will there performance improvement over separate tables vs single table with multiple partitions?

Will there performance improvement over separate tables vs single table with multiple partitions? Is advisable to have separate tables than having a single big table with partitions? Can we expect same performance having single big table with partitions? What is the recommendation approach in HANA?

Suren,
first off a friendly reminder: SCN is a public forum and for you as an SAP employee there are multiple internal forums/communities/JAM groups available. You may want to consider this.
Concerning your question:
You didn't tell us what you want to do with your table or your set of tables.
As tables are not only storage units but usually bear semantics - read: if data is stored in one table it means something else than the same data in a different table - partitioned tables cannot simply be substituted by multiple tables.
Looked at it on a storage technology level, table partitions are practically the same as tables. Each partition has got its own delta store & can be loaded and displaced to/from memory independent from the others.
Generally speaking there shouldn't be too many performance differences between a partitioned table and multiple tables.
However, when dealing with partitioned tables, the additional step of determining the partition to work on is always required. If computing the result of the partitioning function takes a major share in your total runtime (which is unlikely) then partitioned tables could have a negative performance impact.
Having said this: as with all performance related questions, to get a conclusive answer you need to measure the times required for both alternatives.
- Lars

Slow performance refreshing report with multiple subreports in main report

I am using multiple subreports in my main report that appear to be slowing down the performance of the report considerably. Is there something I can do to increase performance with subreports.

Hi Brian,
Subreports are a known performance hog.
I would suggest going back to the drawing board and rethinking on the layout of the report. The best thing, of course, would be to completely get rid of the subreports by creating a single SQL statement that takes care of all the report's requirements.
Sometimes it is imperative to have subreports, in which case, you should try to make sure any selection filters from both the Main Report and the Subreport are passed back to the database.
Also, avoid using Page N of M for better performance - with or without Subreports.
-Abhilash

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