Performance problems with Reports 6i

Hello,
We have reports server installed on Windows NT, generating reports in html format, requested through Oracle 9iAS.
When we have approx. 20 reports being generated simultaneously, RWCGI60.exe processes start to accumulate in the task manager and do not end.
When the RWCGI60.exe started to accumulate, RWRUN60.EXE was not using any CPU time.
After some minutes, without requesting any additional reports, RWRUN60.EXE stared using 99% of CPU and evntually all the RWCGI60.exe processes were evacuated and ended.
Is there any configuration we can do to the Reports Server to handle this load?

There is a maxconnect setting in reports server configuration file. The setting allows you to control how many connections the server is able to open at any time. When more cgi executables are invoked than the maxconnect, only "maxconnect" number of cgi gets connected, other cgi will get error message and quit very quickly.
If you don't want cgi to compete your machine resource, you should run reports server in separate machine.
Thanks,
-Shaun

Similar Messages

Performance problem with report query

Hi,
I am encountering a performance issue with a page returning a report.
I have a page that has a region which joins 2 tables. One table has about 220,00 rows, while the other contains roughly 60,000 rows. In the region source of the report region, the query includes join condition with local variables. For example, the page is page 70, and some join conditions are:
and a.id=:P70_ID
and a.name like :P70_NAME
I run the query that returns a large number of rows from sqlplus, and it takes less than 30 sec to complete.
When I run the page, the report took about 3 minutes to return.
In this case, :P70_NAME is initialized to '%' on the page.
I then tried to substitute variable value directly in the query:
and a.id=1000
and a.name like '%'
this time the report returned in about 30 sec.
I then tried another thing which specified the region as "PL/SQL Function returning sql query", and modified the region as follows:
l_sql := '.......';
l_sql := l_sql || 'and a.id=' || v('P70_ID')
and similar substituting :P70_NAME to v('P70_NAME') and append its value to the l_sql string.
The report query page also returned in 30 sec.
Is there any known performance issue with using the bind variable (:PXX_XXX) in the report region?

If you are able.. flush the shared_pool, run your
report then query the v$sql_area or v$sql_text tables.
Or do a google query and look up Cary Milsap's piece on enabling extended trace .. there is your sure fire way of finding the problem sql. I am still learning htmldb but is there a way to alter session enable trace in some pre-query block?

Performance problem with Orcacle / Crystal reports 8.5 / ASP

Hi,
I have a performance problem with reports running crystal reports 8.5 with oracle databases.
Fetching data appears to be slow. Oracle trace reports (tkprof) shows that fetchsize=1.
Fetchsize in Oracle ODBC is 15 (default).
How can I update te fetchsize in crystal reports?
I would appreciate any help.

CR XI R2 is also still available for purchase. This is the last version of CR to use the RDC. Contact sales at 866-681-3435.
Make sure the installed versin is 11.5.12.1838 - if it is not, apply SP6:
https://smpdl.sap-ag.de/~sapidp/012002523100015859952009E/crxir2win_sp6.exe
MSM:
https://smpdl.sap-ag.de/~sapidp/012002523100000634032010E/crxir2sp6_rdc_mm.zip
- Ludek
Edited by: Ludek Uher on Jan 4, 2011 10:05 AM

Performance problem with Mavericks.

Performance problem with Mavericks. My Mac is extremly slow after upgrading to Mavericks. What can i do to solve that?

If you are still experiencing slow down issues, it maybe because of a few other reasons.
Our experience with OS X upgrades, and Mavericks is no exception, is that users have installed a combination of third party software and/or hardware that is incompatible and/or is outdated that causes many negative performance issues when upgrading to a new OS X version.
Your Mac's hard drive maybe getting full.
Do you run any antivirus software on your Mac? Commercial Antivirus software can slow down and negatively impact the normal operation of OS X.
Do you have apps like MacKeeper or any other maintenance apps like CleanMyMac 1 or 2, TuneUpMyMac or anything like these apps, installed on your Mac? These types of apps, while they appear to be helpful, can do too good a job of data "cleanup" causing the potential to do serious data corruption or data deletion and render a perfectly running OS completely dead and useless leaving you with a frozen, non-functional Mac.
Your Mac may have way too many applications launching at startup/login.
Your Mac may have old, non-updated or incompatible software installed.
Your Mac could have incompatible or outdated web browser extensions, plugins or add-ons.
Your Mac could have connected third party hardware that needs updated device drivers.
It would help us to help you if we could have some more technical info about your iMac.
If you so choose, please download, install and run Etrecheck.
Etrecheck was developed as a simple Mac diagnostic report tool by a regular Apple Support forum user and technical support contributor named Etresoft. Etrecheck is a small, unobstrusive app that compiles a static snapshot of your entire Mac hardware system and installed software.
This is a free app that has been honestly created to provided help in diagnosing issues with Macs running the new OS X 10.9 Mavericks.
It is not malware and can be safely downloaded and installed onto your Mac.
http://www.etresoft.com/etrecheck
Copy/paste and post its report here in another reply thread so that we have a complete profile of your Mac's hardware and installed software so we can all help continue with your Mac performance issues.
Thank you.

Performance problem with CR SDK

Hi,
I'am currently on a customer site and I have the following problem :
The client have a performance problem with a J2EE application wich call a Crystal report with th CR SDK. To reproduce the problem on the local machine (the CR server), I have developped a little jsp page wich used the Crystal SDK to open a Crystal report on the server (this report is based on a XML data source), setting the new data source (with a new xml data flow) and refresh the report in PDF format.
The problem is that the 2 first sequences take about 5 seconde each (5 sec for the opening report and 5 seconds for the setting data source). Then the total process take about 15 seconds to open and refresh the document that is very long for a little document.
The document is a 600Ko file, the xml source is a 80Ko file.
My jsp page is directly deployed on the tomcat of the Crystal Report Server (CRXIR2 without Service Pack).
The Filestore and the MySQL database are on the CR server.
The server is a 4 quadripro (16 proc) with 16Go of RAM and is totally dedicated to Crystal Report. For the moment, there is no activity on the server (it is also used for the test).
The mains jsp orders are the followings :
IEnterpriseSession es = CrystalEnterprise.getSessionMgr().logon("administrator", "", "EDITBI:6400", "secEnterprise");
    IInfoStore infoStore = (IInfoStore) es.getService("", "InfoStore");
    IInfoObjects infoObjects = infoStore.query("SELECT * FROM CI_INFOOBJECTS WHERE SI_NAME='CPA_EV' AND SI_INSTANCE=0 ");
    IInfoObject report = (IInfoObject) infoObjects.get(0);
IReportAppFactory reportAppFactory = (IReportAppFactory)es.getService("RASReportFactory");
ReportClientDocument reportClientDoc = reportAppFactory.openDocument(report.getID(), 0, null);
IXMLDataSet xmlDataSet = new XMLDataSet();
xmlDataSet.setXMLData(new ByteArray(ligne_data_xml));
xmlDataSet.setXMLSchema(new ByteArray(ligne_schema_xml));
DatabaseController db = reportClientDoc.getDatabaseController();
db.setDataSource(xmlDataSet, "", "");
ByteArrayInputStream bt = (ByteArrayInputStream)reportClientDoc.getPrintOutputController().export(ReportExportFormat.PDF);
My question is : does this method is the good one to do this ?
Thank's in advance for your help
Best regards
Emmanuel

Hi,
My problem is not resolved and I have'nt news from the support.
If you have any idea/info, don't forget me
Thank's in advance
Emmanuel

Performance problem with Integration with COGNOS and Bex

Hi Gems
I have a performance problem with some of my queries when integrating with the COGNOS
My query is simple which gets the data for the date interval : "
From Date: 20070101
To date:20070829
When executing the query in the Bex it takes 2mins but when it is executed in the COGNOS it takes almost 10mins and above..
Any where can we debug the report how the data is sending to the cognos. Like debugging the OLEDB ..
and how to increase the performance.. of the query in the Cognos ..
Thanks in Advance
Regards
AK

Hi,
Please check the following CA Unicenter config files on the SunMC server:
- is the Event Adapter (ea-start) running ?, without these daemon no event forwarding is done the CA Unicenter nor discover from Ca unicenter is working.
How to debug:
- run ea-start in debug mode:
# /opt/SUNWsymon/SunMC-TNG/sbin/ea-start -d9
- check if the Event Adaptor is been setup,
# /var/opt/SUNWsymon/SunMC-TNG/cfg_sunmctotng
- check the CA log file
# /var/opt/SUNWsymon/SunMC-TNG/SunMCToTngAdaptorMain.log
After that is all fine check this side it explains how to discover an SunMC agent from CA Unicenter.
http://docs.sun.com/app/docs/doc/817-1101/6mgrtmkao?a=view#tngtrouble-6
Kind Regards

Performance problems with jdk 1.5 on Linux plattform

Performance problems with jdk 1.5 on Linux plattform
(not tested on Windows, might be the same)
After refactoring using the new features from java 1.5 I lost
performance significantly:
public Vector<unit> units;
The new code:
for (unit u: units) u.accumulate();
runs more than 30% slower than the old code:
for (int i = 0; i < units.size(); i++) units.elementAt(i).accumulate();
I expected the opposite.
Is there any information available that helps?

Here's the complete benchmark code I used:package test;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Vector;
public class IterationPerformanceTest {
     private int m_size;
     public IterationPerformanceTest(int size) {
          m_size = size;
     public long getArrayForLoopDuration() {
          Integer[] testArray = new Integer[m_size];
          for (int item = 0; item < m_size; item++) {
               testArray[item] = new Integer(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (int index = 0; index < m_size; index++) {
               builder.append(testArray[index]);
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getArrayForEachDuration() {
          Integer[] testArray = new Integer[m_size];
          for (int item = 0; item < m_size; item++) {
               testArray[item] = new Integer(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (Integer item : testArray) {
               builder.append(item);
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getArrayListForLoopDuration() {
          ArrayList<Integer> testList = new ArrayList<Integer>();
          for (int item = 0; item < m_size; item++) {
               testList.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (int index = 0; index < m_size; index++) {
               builder.append(testList.get(index));
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getArrayListForEachDuration() {
          ArrayList<Integer> testList = new ArrayList<Integer>();
          for (int item = 0; item < m_size; item++) {
               testList.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (Integer item : testList) {
               builder.append(item);
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getArrayListIteratorDuration() {
          ArrayList<Integer> testList = new ArrayList<Integer>();
          for (int item = 0; item < m_size; item++) {
               testList.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          Iterator<Integer> iterator = testList.iterator();
          while(iterator.hasNext()) {
               builder.append(iterator.next());
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getLinkedListForLoopDuration() {
          LinkedList<Integer> testList = new LinkedList<Integer>();
          for (int item = 0; item < m_size; item++) {
               testList.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (int index = 0; index < m_size; index++) {
               builder.append(testList.get(index));
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getLinkedListForEachDuration() {
          LinkedList<Integer> testList = new LinkedList<Integer>();
          for (int item = 0; item < m_size; item++) {
               testList.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (Integer item : testList) {
               builder.append(item);
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getLinkedListIteratorDuration() {
          LinkedList<Integer> testList = new LinkedList<Integer>();
          for (int item = 0; item < m_size; item++) {
               testList.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          Iterator<Integer> iterator = testList.iterator();
          while(iterator.hasNext()) {
               builder.append(iterator.next());
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getVectorForLoopDuration() {
          Vector<Integer> testVector = new Vector<Integer>();
          for (int item = 0; item < m_size; item++) {
               testVector.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (int index = 0; index < m_size; index++) {
               builder.append(testVector.get(index));
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getVectorForEachDuration() {
          Vector<Integer> testVector = new Vector<Integer>();
          for (int item = 0; item < m_size; item++) {
               testVector.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          for (Integer item : testVector) {
               builder.append(item);
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
     public long getVectorIteratorDuration() {
          Vector<Integer> testVector = new Vector<Integer>();
          for (int item = 0; item < m_size; item++) {
               testVector.add(item);
          StringBuilder builder = new StringBuilder();
          long start = System.nanoTime();
          Iterator<Integer> iterator = testVector.iterator();
          while(iterator.hasNext()) {
               builder.append(iterator.next());
          long end = System.nanoTime();
          System.out.println(builder.length());
          return end - start;
      * @param args
     public static void main(String[] args) {
          IterationPerformanceTest test = new IterationPerformanceTest(1000000);
          System.out.println("\n\nRESULTS:");
          long arrayForLoop = test.getArrayForLoopDuration();
          long arrayForEach = test.getArrayForEachDuration();
          long arrayListForLoop = test.getArrayListForLoopDuration();
          long arrayListForEach = test.getArrayListForEachDuration();
          long arrayListIterator = test.getArrayListIteratorDuration();
//          long linkedListForLoop = test.getLinkedListForLoopDuration();
          long linkedListForEach = test.getLinkedListForEachDuration();
          long linkedListIterator = test.getLinkedListIteratorDuration();
          long vectorForLoop = test.getVectorForLoopDuration();
          long vectorForEach = test.getVectorForEachDuration();
          long vectorIterator = test.getVectorIteratorDuration();
          System.out.println("Array      for-loop: " + getPercentage(arrayForLoop, arrayForLoop) + "% ("+getDuration(arrayForLoop)+" sec)");
          System.out.println("Array      for-each: " + getPercentage(arrayForLoop, arrayForEach) + "% ("+getDuration(arrayForEach)+" sec)");
          System.out.println("ArrayList for-loop: " + getPercentage(arrayForLoop, arrayListForLoop) + "% ("+getDuration(arrayListForLoop)+" sec)");
          System.out.println("ArrayList for-each: " + getPercentage(arrayForLoop, arrayListForEach) + "% ("+getDuration(arrayListForEach)+" sec)");
          System.out.println("ArrayList iterator: " + getPercentage(arrayForLoop, arrayListIterator) + "% ("+getDuration(arrayListIterator)+" sec)");
//          System.out.println("LinkedList for-loop: " + getPercentage(arrayForLoop, linkedListForLoop) + "% ("+getDuration(linkedListForLoop)+" sec)");
          System.out.println("LinkedList for-each: " + getPercentage(arrayForLoop, linkedListForEach) + "% ("+getDuration(linkedListForEach)+" sec)");
          System.out.println("LinkedList iterator: " + getPercentage(arrayForLoop, linkedListIterator) + "% ("+getDuration(linkedListIterator)+" sec)");
          System.out.println("Vector     for-loop: " + getPercentage(arrayForLoop, vectorForLoop) + "% ("+getDuration(vectorForLoop)+" sec)");
          System.out.println("Vector     for-each: " + getPercentage(arrayForLoop, vectorForEach) + "% ("+getDuration(vectorForEach)+" sec)");
          System.out.println("Vector     iterator: " + getPercentage(arrayForLoop, vectorIterator) + "% ("+getDuration(vectorIterator)+" sec)");
     private static NumberFormat percentageFormat = NumberFormat.getInstance();
     static {
          percentageFormat.setMinimumIntegerDigits(3);
          percentageFormat.setMaximumIntegerDigits(3);
          percentageFormat.setMinimumFractionDigits(2);
          percentageFormat.setMaximumFractionDigits(2);
     private static String getPercentage(long base, long value) {
          double result = (double) value / (double) base;
          return percentageFormat.format(result * 100.0);
     private static NumberFormat durationFormat = NumberFormat.getInstance();
     static {
          durationFormat.setMinimumIntegerDigits(1);
          durationFormat.setMaximumIntegerDigits(1);
          durationFormat.setMinimumFractionDigits(4);
          durationFormat.setMaximumFractionDigits(4);
     private static String getDuration(long nanos) {
          double result = (double)nanos / (double)1000000000;
          return durationFormat.format(result);
}

Performance problems with new Java Tiger style recommendations

Performance problems with jdk 1.5 on Linux plattform
(not tested on Windows, might be the same)
using the new style recommendations.
I need fast Vector loops for high speed mathematical calculations, some
hints about the fastest way to program that loop would be also great!
After refactoring using the new features from java 1.5 (as recommended from
SUN) I lost performance significantly:
using a vector:
public Vector<unit> units;
The new code (recommended from SUN for Java Tiger for redesign):
for (unit u: units) u.accumulate();
runs more than 30% slower than the old code:
for (int i = 0; i < units.size(); i++) units.elementAt(i).accumulate();
I expected the opposite.
Is there any information available that helps?
The following additional information I got from Mr. Shankar Unni:
I got some fairly anomalous results comparing ArrayList and Vector: for the
1.5-style loops, ArrayList was faster then Vector, but for a loop with get()
calls, Vector was faster. Vector was even faster than that using
elementAt(), which was a surprise:
For a million summing iterations over a 100-element array:
vector elementAt loop took 3446 ms.
vector get loop took 3796 ms.
vector iterator loop took 5469 ms.
arraylist get loop took 4136 ms.
arraylist iterator loop took 4668 ms.

If your topic doesn't change, please stay in your original post.

Performance problems with SAP GUI 7.10 and BEx 3.5 Patch 400?

Hi everybody,
we installed SAP GUI 7.10 and BEx 3.5 Patch 400 and detected hugh performance problems with this version in comparison to the SAP GUI 6.40 and BEx 3.5 or BEx 7.0 Patch 800.
Does anybody detect the same problems?
Best regards,
Ulli

Most important question when you are talking about performance-issues:
which OC are you working on and which excel version?
ciao
Joke

Performance Problems with "For all Entries" and a big internal table

We have big Performance Problems with following Statement:
SELECT * FROM zeedmt_zmon INTO TABLE gt_zmon_help
FOR ALL ENTRIES IN gt_zmon_help
    WHERE
    status = 'IAI200' AND
    logdat IN gs_dat AND
    ztrack = gt_zmon_help-ztrack.
In the internal table gt_zmon_help are over 1000000 entries.
Anyone an Idea how to improve the Performance?
Thank you!

>
Matthias Weisensel wrote:
> We have big Performance Problems with following Statement:
>
>
SELECT * FROM zeedmt_zmon INTO TABLE gt_zmon_help
>   FOR ALL ENTRIES IN gt_zmon_help
>     WHERE
>     status = 'IAI200' AND
>     logdat IN gs_dat AND
>     ztrack = gt_zmon_help-ztrack.
>
> In the internal table gt_zmon_help are over 1000000 entries.
> Anyone an Idea how to improve the Performance?
>
> Thank you!
You can't expect miracles. With over a million entries in your itab any select is going to take a bit of time. Do you really need all these records in the itab? How many records is the select bringing back? I'm assuming that you have got and are using indexes on your ZEEDMT_ZMON table.
In this situation, I'd first of all try to think of another way of running the query and restricting the amount of data, but if this were not possible I'd just run it in the background and accept that it is going to take a long time.

Performance problems with EP 6 and MS IE

Hi everybody,
since a couple of days, we are facing a sever performance problem with our SAP EP 6.0. When I access the system with MS Internet Explorer 6.0, it takes 5-10 minutes after the Login. With Firefox Browser, the performance is ok. Therefore I assume that it must be a problem with the IE settings. Does anybody know a solution?
Best regards,
Michael

There are a few things that this could be. I've seen the setting "Empty Temporary Internet Files folder when browser is closed" cause a lot of performance problems (This is in the advanced settings in your IE).
This will cause your cache to be cleared out each time the browser is closed and cause a lot more data to be downloaded each time you login to the system.
For more analysis I'd recommend putting a tool like HTTPWatch into your IE browser and seeing which requests are using the most time.

There is any Performance problem with Creation of many Y or Z Programs.

HI,
There is any Performance problem with Creation of many Y or Z Programs. plz give clarity regarding this to me......
regards
ganesh

Ganesh,
Can you please mention the context and the purpose of creating these custom program. And application are you referring to?
Regards,
Rohit

Performance problem with ojdbc14.jar

Hi,
We are having performance problem with ojdbc14.jar in selecting and updating (batch updates) entries in a table. The queries are taking minutes to execute. The same java code works fine with classes12.zip ans queries taking sub seconds to execute.
We have Oracle 9.2.0.5 Database Server and I have downloaded the ojdbc14.jar from Oracle site for the same. Tried executing the java code from windows 2000, Sun Solaris and Opteron machines and having the same problem.
Does any one know a solution to this problem? I also tried ojdbc14.jar meant for Oracle 10g, that did not help.
Please help.
Thanks
Yuva

My code is doing some thing which might be working well with classes12.zip and which does not work well with ojdbc14.jar? Any general suggestions to make the code better, especially for batch updates.
But for selecting a row from the table, I am using index columns in the where cluase. In the code using PreparedStatement, setting all the reuired fields. Here is the code. We have a huge index with 14 fields!!. All the parameters are for where clause.
if(longCallPStmt == null) {
longCallPStmt = conn.prepareStatement(longCallQuery);
log(Level.FINE, "CdrAggLoader: Loading tcdragg entry for "
+GeneralUtility.formatDate(cdrAgg.time_hour, "MM/dd/yy HH"));
longCallPStmt.clearParameters();
longCallPStmt.setInt(1, cdrAgg.iintrunkgroupid);
longCallPStmt.setInt(2, cdrAgg.iouttrunkgroupid);
longCallPStmt.setInt(3, cdrAgg.iintrunkgroupnumber);
longCallPStmt.setInt(4, cdrAgg.iouttrunkgroupnumber);
longCallPStmt.setInt(5, cdrAgg.istateregionid);
longCallPStmt.setTimestamp(6, cdrAgg.time_hour);
longCallPStmt.setInt(7, cdrAgg.icalltreatmentcode);
longCallPStmt.setInt(8, cdrAgg.icompletioncode);
longCallPStmt.setInt(9, cdrAgg.bcallcompleted);
longCallPStmt.setInt(10, cdrAgg.itodid);
longCallPStmt.setInt(11, cdrAgg.iasktodid);
longCallPStmt.setInt(12, cdrAgg.ibidtodid);
longCallPStmt.setInt(13, cdrAgg.iaskzoneid);
longCallPStmt.setInt(14, cdrAgg.ibidzoneid);
rs = longCallPStmt.executeQuery();
if(rs.next()) {
cdr_agg = new CdrAgg(
rs.getInt(1),
rs.getInt(2),
rs.getInt(3),
rs.getInt(4),
rs.getInt(5),
rs.getTimestamp(6),
rs.getInt(7),
rs.getInt(8),
rs.getInt(9),
rs.getInt(10),
rs.getInt(11),
rs.getInt(12),
rs.getInt(13),
rs.getInt(14),
rs.getInt(15),
rs.getInt(16)
}//if
end_time = System.currentTimeMillis();
log(Level.INFO, "CdrAggLoader: Loaded "+((cdr_agg==null)?0:1) + " "
+ GeneralUtility.formatDate(cdrAgg.time_hour, "MM/dd/yy HH")
+" tcdragg entry in "+(end_time - start_time)+" msecs");
} finally {
GeneralUtility.closeResultSet(rs);
GeneralUtility.closeStatement(pstmt);
Why that code works well for classes12.zip (comes back in around 10 msec) and not for ojdbc14.jar (comes back in 6-7 minutes)?
Please advise.

Performance problem with recordset object

Hi,
I have a performance problem with record set object. Is it true using RecordSet object as argument to the method will cause any perfomance degradation?
here is my code.
finStmtList = selectFinancialStatements(rs, shortFormat, latestOnly, true);
I changed the code by populating the recordset in the method that called the above statement. previously the population of valueobject is within the select FinancialStatements.
Now the method looks like
finStmtList = selectFinancialStatements(ValueObject, shortFormat, latestOnly, true);
Is this fix will result in any performance gain?

Can any one suggest me that the above RecordSet Object contains large number of records that counts up to 1000 rows and having 30 columns? I tested the application. But the performance varies from time to time.
Is there any other way to fine tune it?

Performance problem with sdn_nn - new 10g install

I am having a performance problem with sdn_nn after migrating to a new machine. The old Oracle version was 9.0.1.4. The new is 10g. The new machine is faster in general. Most (non-spatial) batch processes run in half the time. However, the below statement is radically slower. The below statement ran in 45 minutes before. On the new machine it hasn't finished after 10 hours. I am able to get a 5% sample of the customers to finish in 45 minutes.
Does anyone have any ideas on how to approach this problem? Any chance something isn't installed correctly on the new machine (the nth version of the query finishe, albeit 20 times slower)?
Appreciate any help. Thanks.
- Jack
create table nearest_store
as
select /*+ ordered */
a.customer_id,
b.store_id nearest_store,
round(mdsys.sdo_nn_distance(1),4) distance
from customers a,
stores b
where mdsys.sdo_nn(
b.geometry,
a.geometry,
'sdo_num_res=1, unit=mile',
1
) = 'TRUE'
;

Dan,
customers 110,000 (involved in this query)
stores 28,000
Here is the execution plan on the current machine:
CREATE TABLE STATEMENT cost = 81947
LOAD AS SELECT
PX COORDINATOR
PX SEND QC (RANDOM) :TQ10000
ROW NESTED LOOPS
1 1 PX BLOCK ITERATOR
1 1ROW TABLE ACCESS FULL CUSTOMERS
1 3 PARTITION RANGE ALL
1 3 TABLE ACCESS BY LOCAL INDEX ROWID STORES
DOMAIN INDEX STORES_SIDX
I can't capture the execution plan on the old database. It is gone. I don't remember it being any different from the above (full scan customers, probe stores index once for each row in customers).
I am trying the query without the create table (just doing a count). I'll let you know on that one.
I am at 10.0.1.3.
Here is how I created the index:
create index stores_sidx
on stores(geometry)
indextype is mdsys.spatial_index LOCAL
Note that the stores table is partitioned by range on store type. There are three store types (each in its own partition). The query returns the nearest store of each type (three rows per customer). This is by design (based on the documented behavior of sdo_nn).
In addition to running the query without the CTAS, I am also going try running it on a different machine tonight. I let you know how that turns out.
The reason I ask about the install, is that the Database Quick Installation Guide for Solaris says this:
"If you intend to use Oracle JVM or Oracle interMedia, you must install the Oracle Database 10g Products installation type from the Companion CD. This installation optimizes the performance of those products on your system."
And, the Database Installlation Guide says:
"If you plan to use Oracle JVM or Oracle interMedia, Oracle strongly recommends that you install the natively compiled Java libraries (NCOMPs) used by those products from the Oracle Database 10g Companion CD. These libraries are required to improve the performance of the products on your platform."
Based on that, I am suspicious that maybe I have the product installed on the new machine, but not correctly (forgot to set fast=true).
Let me know if you think of anything else you'd like to see. Thanks.
- Jack

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