Response time much more in migrated AIX database than in Windows database

We migrated a 9.2.0.6 database from windows to AIX (on same oracle version). Initially we were getting really slow response on direct sqls and batch sqls fom application server. Then we tuned aix database a bit and got a better response time for direct sqls on aix database.
Now queries run faster on aix database than the db on windows.
However, the queries from applciation (ACCURATE application) are still twice slower on aix database compared to windows database.
Can anyone suggest a possible cause or tuning area?
We have checked on network level and found no bottlenecks.
Regards,
Garima

user650817 wrote:
We migrated a 9.2.0.6 database from windows to AIX (on same oracle version). Initially we were getting really slow response on direct sqls and batch sqls fom application server. Then we tuned aix database a bit and got a better response time for direct sqls on aix database.
Now queries run faster on aix database than the db on windows.
However, the queries from applciation (ACCURATE application) are still twice slower on aix database compared to windows database.
Can anyone suggest a possible cause or tuning area?Garima,
if you have particular queries that you know of that are behaving differently, you could start right away by comparing the execution plans and tracing the execution using the SQL trace facility and the "tkprof" trace file analyzer.
If you want to get an overview of the database performance, you should consider installing STATSPACK on both systems if you haven't done so yet and create snapshots to compare statspack reports from both systems for a representative time period. This way you can gather information about the top wait events and top SQLs of the periods analyzed.
By the way, how did you "migrate" the database? Did you use export/import to migrate? What about the statistics for the cost based optimizer, could these be different between the two systems or are you still using the rule based optimizer?
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

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Copyright (c) 1982, 2005, Oracle. All rights reserved.
Trace file: pacs_ora_5800.trc
Sort options: default
count    = number of times OCI procedure was executed
cpu      = cpu time in seconds executing
elapsed = elapsed time in seconds executing
disk     = number of physical reads of buffers from disk
query    = number of buffers gotten for consistent read
current = number of buffers gotten in current mode (usually for update)
rows     = number of rows processed by the fetch or execute call
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delete TABLEAs
where
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call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.01          0          3         13           1
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.01          0          3         13           1
Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: ALL_ROWS
Parsing user id: 36
Rows     Row Source Operation
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Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
SQL*Net message to client                       1        0.00          0.00
SQL*Net message from client                     1        3.60          3.60
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(:B1 )
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          1          7           1
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          1          7           1
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 36     (recursive depth: 1)
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TMP_TABLEAS_TRIGGER
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Execute      1      0.00       0.00          0          0          0           0
Fetch        2      0.00       0.00          0          3          0           1
total        4      0.00       0.00          0          3          0           1
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Parsing user id: 36     (recursive depth: 1)
Rows     Row Source Operation
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.12       0.11          0      50411          2           1
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.12       0.11          0      50411          2           1
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16731    VIEW VW_NSO_1 (cr=217 pr=0 pw=0 time=17208 us)
16731     SORT UNIQUE (cr=217 pr=0 pw=0 time=17206 us)
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Execute      1      0.10       0.11          0      50411          2           1
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16731    VIEW VW_NSO_1 (cr=217 pr=0 pw=0 time=17251 us)
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          3         10           1
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          3         10           1
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Optimizer mode: ALL_ROWS
Parsing user id: 36     (recursive depth: 1)
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          1          7           1
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          1          7           1
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch        2      0.00       0.00          0          3          0           1
total        4      0.00       0.00          0          3          0           1
Misses in library cache during parse: 0
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Execute      1      0.00       0.00          0          0          0           0
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total        3      0.01       0.00          0         68          0           1
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.29       0.29          0     121996          0           0
Fetch        0      0.00       0.00          0          0          0           0
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          3          0           0
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          3          0           0
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ID IN (SELECT ID FROM TABLEAAA WHERE AAID IN(SELECT AAID FROM
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call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.26       0.29          0     121996          0           0
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.26       0.29          0     121996          0           0
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 36     (recursive depth: 2)
Rows     Row Source Operation
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UPDATE TABLEAS SET SUPERCEDEDBY = 0
WHERE
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          3          0           0
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          3          0           0
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 36     (recursive depth: 2)
Rows     Row Source Operation
      0 UPDATE TABLEAS (cr=3 pr=0 pw=0 time=42 us)
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Parse        0      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch        1      0.00       0.00          0          3          0           0
total        2      0.00       0.00          0          3          0           0
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 36     (recursive depth: 2)
rollback
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          2         31           0
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          2         31           0
Misses in library cache during parse: 0
Parsing user id: 36
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
log file sync                                   1        0.00          0.00
SQL*Net message to client                       1        0.00          0.00
SQL*Net message from client                     1       14.18         14.18
alter session set events '10046 trace name context off'
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Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch        0      0.00       0.00          0          0          0           0
total        2      0.00       0.00          0          0          0           0
Misses in library cache during parse: 0
Parsing user id: 36
OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
call     count       cpu    elapsed       disk      query    current        rows
Parse        3      0.00       0.00          0          0          0           0
Execute      3      0.00       0.01          0          5         44           1
Fetch        0      0.00       0.00          0          0          0           0
total        6      0.00       0.01          0          5         44           1
Misses in library cache during parse: 1
Misses in library cache during execute: 1
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
SQL*Net message to client                       3        0.00          0.00
SQL*Net message from client                     3       14.18         24.44
log file sync                                   1        0.00          0.00
OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
call     count       cpu    elapsed       disk      query    current        rows
Parse       12      0.00       0.00          0          0          0           0
Execute     13      0.79       0.82          0     344825         28           5
Fetch        6      0.01       0.00          0         77          0           3
total       31      0.81       0.82          0     344902         28           8
Misses in library cache during parse: 0
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    0 internal SQL statements in session.
   16 SQL statements in session.
    0 statements EXPLAINed in this session.
Trace file: pacs_ora_5800.trc
Trace file compatibility: 10.01.00
Sort options: default
       1 session in tracefile.
      16 user SQL statements in trace file.
       0 internal SQL statements in trace file.
      16 SQL statements in trace file.
      16 unique SQL statements in trace file.
    1066 lines in trace file.
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Venkat

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From SMICM u2192 goto u2192 Http log u2192 server display entries. We can see the response time as 43 milliseconds
07/May/2010:23:03:22 -0500] - "POST XXXXXXXX HTTP/1.1" 404 2118 [43] h[-]
By defining the parameter icm/HTTP_logging_0 we can adjust the %T value, but I want to use ALM (alert management) to send an alert if the response time is more than X seconds seconds.
I thought of using log file monitoring but help.sap.com says we can define condition like X > 3 sec send an alert instead it will search for exact error message.
I want to avoid writing script using awk(unix) as I do not have OS access.
Please let me know if anyone has automated Abap webdynpro monitoring or any other thoughts is appreciated.
Thanks,
Venkat.

HI Venkat,
Try to explore this MTE (Use CCMS) , not sure you can achieve what you need ...
WDAClass
WebDynproABAPClass
You can reach here
SID\sapserver_SID_00\Web Dynpro ABAP\CpuTime
Hope it will help

IMac screen response time?

I plan to do some gaming on the iMac. What is the screen's response time?

would depend on the model really
IPS panel typically have a better looking image then TN panels
but at least on paper TN panels always have a lower response time
read more
http://asia.cnet.com/lcd-types-tn-vs-va-vs-ips-62213690.htm
http://www.tftcentral.co.uk/articles/panel_technologies.htm
lcd panel types
the external appledisplay lists
Response time: 12 ms
http://www.apple.com/displays/specs.html
to get the max worst case fps with 12ms you to a 1/12ms == 83.33Fps
but if the lcd panel has a refreshrate of 60Hz that will set the max fps unless you disable v-sync
in which case you're inviting tearing to happen which is bad mmkey
all those things being said I game on my imac 21" 2011 model mostly in windows8.1 and skyrim and batman A city and the likes and it runs great

Difference between max response time of operation and service.

Hi All,
I am using ALSB to implement SOA.While monitoring the statistics for a proxy service based on WSDL (web service) ,noticed one thing that max response time of a service operation is different than max response time for that particular service.E.g max response time for one of the operation is 3462 (ms) where as max response time for that service was 4467 (ms).
Can any one help me to identify why there is difference between these two?

I have also noticed this inconsistence. There is probably no explanation in OSB (ALSB) documentation, so I can only guess. Maybe OSB starts to measure response time for service earlier then for an operation. The reason for that could be that OSB can identify service (based on endpoint) earlier then operation (based on request data which have to be parsed first). This could cause a difference in response times. However, this difference should be much smaller than a second (your case). In my case it is usually a matter of few milliseconds.
Please remember that all of above is just my imagination. :-)

Long database response time during hot backup

Hello,
We are running Oracle 10g R2 on AIX 5.3. Our database is approximately 20G in size.
Our users are running applications which are highly sensitive to database response times. So any significant delay in database response time(say about more than 5 seconds) has serious impact on the user applications.
Everyday we take online backups using RMAN and we recently discovered that during the online backup process we are experiencing a serious performance problems at certain periods. For example a typical query which normally takes ~0.5 secods for database to respond takes about >30 seconds for several times during the process. to observe the problem more clearly we also wrote some test scripts which make random queries to the database to measure any delays in response times, and seen that we are getting late responses at several occasions(which normally never happen even when we run the script for a day without running RMAN online backup).
We have gone through IBM's whitepaper on "Tuning AIX for Oracle" and seen that there isn't any misconfiguration that would have bad impact on oracle performance on the AIX side.
Also we have gone throught the following:
http://www.oracle.com/technology/deploy/availability/pdf/rman_performance_wp.pdf
http://www.oracle.com/technology/deploy/availability/pdf/br_optimization.pdf
http://download-west.oracle.com/docs/cd/B19306_01/backup.102/b14191/rcmtunin.htm#sthref1057
We normally take our backups to tape drive. In order to test for any I/O bottlenecks we experimented by taking the backups to the disk drive. We have tried DURATION and MINIMIZE LOAD parameters, and also tried setting the RATE parameter to very low values(about 2M/s which normally reaches to about 100M/s) which resulted in total elapsed time for backups to increase from 30 mins to about 4-5 hours. And we came to find out that there is no improvement about the issue in any of these scenarios.
Also we ran the ADDM reports which claimed I/O bottleneck with about 20% impact on the system, so we tried decreasing I/O using the RATE parameter and then ADDM said "low I/O bottleneck".
Database responsiveness is a vital for our system. What measures can we take to avoid such slowness?
Thanks.

Hello,
Isn't there anything we can do about it? the application software is working almost real-time with the database and cannot tolerate long delays(with which I mean something longer than 5 seconds) due to the nature of the the system.
I wonder if there are any other methods to decrease the online backup load on the system.
Thanks for the response.
Edited by: Emrek on 13.Nis.2010 04:03

T-code SUIM taking much more time for generating output for profie change.

Hi All
We want to extract report for profile addition and deletion for Users in ECC 6. While executing the the t-code SUIM it is taking much more time (taking more than 20 hrs). This problem is coming after patch application
Please give the solution/Suggest to minimize the time taken in report generation.
Thanks-
Guru Prasad Dwivedi

Hello Prasad,
The reason for the performance trouble is a new feature regarding the user change documents. Since note 874850 and 1015043 you will get a more complete overview about the changes regarding a user.
The disadvantage of that new feature is, that in some customer system usage scenario, the performance is very poor. That's the case, if the central change documents are intensivly used also by other applications and the tables CDPOS, CDHDR, ... contains a very big count of rows. Unfortunatly the user change documents can not be searched by the key columns of the central change docs. - so the bad response time can explained.
What now ... ?
There are some work arounds to get the change documents on faster way.
1st. - You can get the former report output and performance if you
       would use the report RSUSR100 instead of the new RSUSR100N in
       separate mode.
2nd. - If you want to use the new report RSUSR100N directly and only
       want to get the information about the traditional topics
       (content of USH* tables) you should only mark the search areas
       on the tabstrip 'user attributes') to get a better performance.
     - furthermore limit the date range, if possible
3rd. - You should regulary (monthly) archive the user relevant documents
       for PFCG and IDENTITY from the central change documents.
       As per our note 1079207 chapter 3 you can reload that archives
       into more selective tables.
       The selection for change documents will be rather faster over
       reloaded archived documents than the documents in the
       central change documents tables.
Best Regards,
Guilherme de Oliveira.

Test program running taking much more time on high end server T5440 than low end server T5220

Hi all,
I have written the following program and run on both T5440 [1.4 GHz, 95 GB RAM, 32 cores(s), 256 logical (virtual) processor(s),] and T5220 [(UltraSPARC-T2 (chipid 0, clock 1165 MH) , 8GB RAM, 1 core, 8 virtual processors )] on same OS version. I found that T5540 server takes more time than T5220. Please find below the details.
test1.cpp
#include <iostream>
#include <pthread.h>
using namespace std;
#define NUM_OF_THREADS 20
struct ABCDEF {
char A[1024];
char B[1024];
void *start_func(void *)
    long long i = 6000;
    while(i--)
                ABCDEF*             sdf = new ABCDEF;
                delete sdf;
                sdf = NULL;
    return NULL;
int main(int argc, char* argv[])
    pthread_t tid[50];
    for(int i=0; i<NUM_OF_THREADS; i++)
                pthread_create(&tid[i], NULL, start_func, NULL);
                cout<<"Creating thread " << i <<endl;
    for(int i=0; i<NUM_OF_THREADS; i++)
                pthread_join(tid[i], NULL);
                cout<<"Waiting for thread " << i <<endl;
After executing the above program on T5440 takes :
real 0.78
user 3.94s
sys 0.05
After executing the above program on T5220 takes :
real 0.23
user 1.43s
sys 0.03
It seems that T5440 which is high end server takes almost 3 times more time than T5220 which is low end server.
However, I have one more observation. I tried the following program :
test2.cpp
#include <iostream>
#include <pthread.h>
using namespace std;
#define NUM_OF_THREADS 20
struct ABCDEF {
char A[1024];
char B[1024];
int main(int argc, char* argv[])
    long long i = 6000000;
    while(i--)
        ABCDEF* sdf = new ABCDEF;
        delete sdf;
        sdf = NULL;
    return 0;
It seems that T5440 server is fast in this case as compaired to T5220 server.
Could anyone please help me out the exact reason for this behaviour as my application is slow as well on this T5440 server. I have posted earlier as well for the same issue.
Thanks in advance !!!
regards,
Sanjay

You already asked this question...
48 hours earlier, and in the same Solaris forum space
Repeating the post isn't going to get you a response any faster, and actually now have people NOT respond because you are not showing any patience.
These are end-user community forums, not a place to expect Oracle Technical Support.   There is no obligation that there be a response.
If you have a business-critical issue and hope to get accurate and timely response, then use your service contract credentials to open a Support request.
This new redundant post is locked.
Edit:
It appears that at the same time the O.P. posted this redundant thread, they also posted the same question to at least one other forum web site:
http://www.unix.com/solaris/229269-test-program-running-taking-much-more-time-high-end-server-t5440-than-low-end-server-t5220.html

SSRS report is consuming much more time to fetch data from DB even direct run SP takes less than a second

Hi,
we are using SQL SERVER 2008R2 X64 RTM version.
One of the SSRS report designed by developer is consuming much more time( 5 to 6 minutes ) to fetch data from DB. Even direct run of Stored Procedure (Called in report )takes less than a second to display the result set.
Please help.
Regards Naveen MSSQL DBA

Hi Naveen,
Based on my understanding, you spend a little time retrieving data with a stored procedure from database in dataset designer. However, it takes long time to run the report to display the data, right?
In Reporting Services, the total time to generate a report include TimeDataRetreval, TimeProcessing and TimeRendering. In your scenario, since you mentioned retrieving data costs a little time, you should check the table
Executionlog3 in the ReportServer database to find which section costs most of time, TimeProcessing or TimeRendering. Then you can refer to this article to optimize your report:
Troubleshooting Reports: Report Performance.
Besides, if parameters exist in the report, you should declare variables inside of the stored procedure and assign the incoming parameters to the variables. For more information, please refer to the similar thread:
Fast query runs slow in SSRS.
If you have any question, please feel free to ask.
Best regards,
Qiuyun Yu
Qiuyun Yu
TechNet Community Support

Response time much more in migrated AIX database than in Windows database

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