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    Maximizing the Performance ofthe Oracle eBusiness Suite

    Ahmed AlomariApplications Performance Group

    Oracle CorporationJune 14, 2005

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    Agenda

    Architecture Application Services Tier Forms Reports Concurrent Manager Apache

    Mod PL/SQL Jserv/JVM

    Portal Discoverer

    Network Performance

    Data Server Tier Application Tuning 11i10 Performance Improvements Q & A

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    Architecture

    Java Server Pages (JSP)

    Forms

    Reports

    Discoverer

    Concurrent Manager

    Servlet Engine

    WebListener

    Portal Real Application

    Clusters (RAC)

    Data Server Tier

    TNS

    (Net8)

    JDBC

    (Thin)

    PL/SQL Gateway

    http

    Application Tier

    Clients

    AOLJ

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    Application Services Tier

    Forms Deploy with socket mode for internal users:

    connectMode=socket (appsweb.cfg)

    Enable Forms Dead Client Detection Value specified in minutes Terminates f60webmx processes for dead clients. FORMS60_TIMEOUT=10

    Enable Forms Abnormal Termination Handler Do not set FORMS60_CATCHTERM

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    Application Services Tier

    Forms Upgrade to the latest Forms patch set (patch set 16)

    Forms patchset 7 (6.0.8.16.X) introduced aregression which affects scalability (bug 2269913).

    - Results in Forms generating invalid SQL.

    - Fixed in Forms patchset 10 (6.0.8.19.X).

    Refer to MetaLink document 125767.1 for Formspatchset upgrades.

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    Application Services Tier

    Forms Cancel Query Should not be enabled unless you are on Forms patchset

    14 (Forms version 6.0.8.23.x or higher).

    Refer to MetaLink Note 138159.1 for instructions on howto enable and tune Cancel query related parameters.

    Cancel Query increases middle-tier CPU as well as DBCPU.

    To Disable Cancel Query

    Set the Profile FND: Enable Cancel Query to No.

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    Application Services Tier

    Forms Ensure users are optimally utilizing the

    professional Forms interfaces.

    Avoid Blind queries Provide selective criteria in Find windows and

    LOVs. Avoid opening and closing forms across

    transactions.

    - Users which need to switch responsibility inorder to complete a business transactionshould instead keep the relevant Forms open.

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    Application Services Tier

    Forms (Tracing) If the form is slow, or a specific flow in the Form

    is slow, first generate a complete SQL trace usingthe Trace menu in Help-Diagnostics.

    If the SQL trace does not account for the majorityof the response time experienced by the user,then generate a Forms Runtime Diagnostics(FRD) Trace.

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    Application Services Tier

    Forms (Tracing SQL Trace)

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    Application Services Tier

    Forms (Tracing FRD Trace) Logon to Applications 11i with the following

    parameters appended to the URL:play=&record=collect&log=/tmp/oeform.trc

    Navigate through the flows which you would liketo trace.

    Exit from Oracle Applications completely.

    Review the trace file from the application server

    (/tmp/oeform.trc).

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    Application Services Tier

    Reports Ensure users provide selective parameters to the

    standard Reports. Review the Report output:

    Number of rows returned to the report. Number of report pages.

    SQL Trace can be generated at RequestSubmission Time (SRS form Debug Options) orby setting the Enable Trace flag in the

    Concurrent Program Definition Form.

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    Application Services Tier

    Reports (Tracing) If the SQL trace for the report does not account for the

    elapsed time of the request, then generate a Reportstrace by appending tracing parameters the to concurrentprogram command line.

    The following are the trace options: TRACE_ALL : log all possible trace information in the trace file. (DEFAULT) TRACE_APP : log trace information on all the report objects in the trace file. TRACE_BRK : list breakpoints in the trace file. TRACE_ERR : list error messages and warnings in the trace file. TRACE_PLS : log trace information on all the PL/SQL objects in the trace file.

    TRACE_PRF : log performance statistics in the trace file. TRACE_SQL : log trace information on all the SQL in the trace file. TRACE_TMS : enter a timestamp for each entry in the trace file.

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    Application Services Tier

    Reports (Tracing) Enabling Reports Trace (pre 11i10)

    Sign-on to Apps with System Administrator responsibility Navigate to Concurrent -> Program -> Define Query the concurrent program (report) which you want to trace.

    Locate the Options field and enter the following values : TRACEOPTS= TRACEFILE= Save the concurrent program Run the report and a trace file will be generated. Remember to clear the trace options after running the report.

    Enabling Reports Trace (11i10) Use the Debug Options page at request submission.

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    Application Services Tier Reports (Trace Output)

    Report: /u02/appl/fnd/11.5.0/reports/US/FNDSCURS.rdfLogged onto server:

    Username:

    . . . . . . . .

    23:59:57 APP ... ( Generic Graphical Object B_SECURITY_GROUP_NAME1

    23:59:57 APP ... ) Generic Graphical Object B_SECURITY_GROUP_NAME1

    23:59:57 APP ... ( Generic Graphical Object B_USER_NAME1

    . . . . . . . .+-------------------------------------+

    | Report Builder Profiler statistics |

    +-------------------------------------+

    TOTAL ELAPSED Time: 2243.04 seconds

    Reports Time: 1196.62 seconds (53.34% of TOTAL)

    ORACLE Time: 1046.41 seconds (46.65% of TOTAL)

    UPI: 1046.00 seconds

    SQL: 0.40 seconds

    TOTAL CPU Time used by process: 904.71 seconds

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    Application Services Tier

    Concurrent Manager Avoid enabling an excessive number of standard

    or specialized managers. Use specialization rules and work shifts to bind

    specific jobs to specific time windows. Helps avoid scheduling resource intensive batchrequests during peak activity.

    For jobs which spawn parallel workers such asAuto Invoice or Payroll, set the sleep time of the

    Conflict Resolution Manager (CRM) to null (i.e.10 seconds). The default value is 60 seconds.

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    Application Services Tier

    Concurrent Manager Database Resource Manager Integration

    Define Resource Consumer Groups andassociate specific concurrent programs with a

    resource group. Allows an administrator to constrain the amount of

    CPU resources used by a concurrent program.

    Resource Groups can also be defined for onlineusers using the profile FND: Resource ConsumerGroup.

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    Application Services Tier

    Concurrent Manager Transaction Managers

    Used for Inventory Transactions as well as other synchronousonline processing.

    Ensure enough transaction managers exist to service the

    request load. Set the profile Concurrent:Wait for Available TM to 1 (second).

    Set TP:INV Transaction processing mode to On-lineprocessing for small inventory requests from the UI.

    Set the sleep time on the transaction managers to a high

    number (e.g. 10 minutes).- Avoids constant polls to check for shutdown requests.

    Transaction Managers can also be traced.

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    Application Services Tier

    Concurrent Manager Enabling Tracing

    Program Level

    - Enable the trace option in the concurrent program

    definition form. Request Level (new in 11i10)

    - Use the Debug Options button in the RequestSubmission Form

    - The profile Concurrent: Allow Debugging

    should be set to Yes.

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    Application Services Tier

    Concurrent Manager Enabling Trace at the Program Level

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    Application Services Tier Concurrent Manager

    Enabling Trace at the Request Level

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    Application Services Tier Concurrent Manager

    Enabling Trace at the Request Level

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    Application Services Tier

    Apache On UNIX, Apache is process based (httpd), and mods

    such as mod PL/SQL run within the process addressspace of the httpd processes.

    On Windows, Apache is multi-threaded (Apache.exe).

    Tune the number of processes and number of clients(httpds.conf):

    MinSpareServers 5

    MaxSpareServers 10

    StartServers 5 MaxClients 512

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    Application Services Tier

    Apache Minimize levels of logging (httpds.conf):

    LogLevel warn

    SSLLogLevel warn

    Enable Caching of non-HTML resources includingimages, style sheets, and Java script.

    Caches content in the browser cache.

    - Reduces network round-trips (non SSL)

    - Reduces network bandwidth utilization (SSL)

    Included in AutoConfig templates in 11.5.8 (orhigher).

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    Application Services Tier

    Apache Enable Caching of non-HTML resources (httpd.conf or

    apps.conf)

    #enable the generation of the Expires header for files under /OA_HTML/ExpiresActive On

    #expire images one month after last client access

    ExpiresByType image/gif "access plus 1 month"

    #expire stylesheets one week after the last client access

    ExpiresByType text/css "access plus 1 weeks"#expire javascript libraries one day after the last client access

    ExpiresByType text/javascript "access plus 1 days

    ExpiresByType application/x-javascript "access plus 1 day"

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    Application Services Tier

    Apache Review Apache Access Log file to ensure images

    are being satisfied from the browser cache. Http code 200 (request for document)

    Http code 304 (request for time stamp)

    130.35.127.106 - - [23/Oct/2002:19:00:21 -0700] "GET /OA_MEDIA/FNDINVDT.gif HTTP/1.1" 200 821130.35.127.106 - - [25/Oct/2002:14:38:23 -0700] "GET /OA_MEDIA/FNDINVDT.gif HTTP/1.1" 304 -130.35.127.106 - - [25/Oct/2002:14:38:23 -0700] "GET /OA_MEDIA/FNDWATHS.gif HTTP/1.1" 200 190130.35.127.106 - - [25/Oct/2002:14:38:23 -0700] "GET /OA_MEDIA/FNDREDPT.gif HTTP/1.1" 200 70130.35.127.106 - - [25/Oct/2002:14:39:23 -0700] "GET /OA_HTML/OA.jsp?page=/oracle/apps/icx/por/rcv/pages/ReceivingHomePage&OAHP=ICXPOR_MENU&OASF=ICXPOR_RCV_HOME_PAGE&dbc=ap107fam_ipdev11i&language_code=US&transactionid=70A5819F04C0F411

    HTTP/1.1" 200 14130.35.127.106 - - [25/Oct/2002:14:39:34 -0700] "GET /servlets/PoolMonitor?jvm HTTP/1.1" 200 7954130.35.127.106 - - [25/Oct/2002:14:41:03 -0700] "GET /OA_HTML/US/ICXINDEX_ipdev11i.htm HTTP/1.1" 304 -130.35.127.106 - - [25/Oct/2002:14:41:03 -0700] "GET /OA_MEDIA/logo.gif HTTP/1.1" 304 -130.35.127.106 - - [25/Oct/2002:14:41:03 -0700] "GET /OA_MEDIA/appslogo.gif HTTP/1.1" 304 -130.35.127.106 - - [25/Oct/2002:14:41:03 -0700] "GET /OA_MEDIA/FNDJLFRL.gif HTTP/1.1" 304 -130.35.127.106 - - [25/Oct/2002:14:41:03 -0700] "GET /OA_MEDIA/FNDINVDT.gif HTTP/1.1" 304 -130.35.127.106 - - [25/Oct/2002:14:41:03 -0700] "GET /OA_MEDIA/FNDJLFRR.gif HTTP/1.1" 304 -

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    Application Services Tier

    Apache Mod PL/SQL Configure a dedicated mod PL/SQL Listener

    Improves performance and scalability

    - Significantly reduces overall number of

    sessions/connections.- Reduces latency of web requests.

    - Improves cursor sharing.

    Documented in Oracle 9i Application Server Using thePL/SQL Gateway Release 1 (v1.0.2.2)

    - http://technet.oracle.com/docs/products/ias/doc_library/1022doc_otn/apps.102/a90099/apptroub.htm#634180

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    Application Services Tier

    Apache Mod PL/SQL (dedicated listener)

    1. For the main Listener running on Port 7000, edit the file$IAS_HOME/Apache/modplsql/cfg/plsql.conf as follows:

    Disable the mod PL/SQL service from the main listener by commenting out the

    lines between the two Location parameters as follows:

    #

    # SetHandler pls_handler

    # Order deny,allow

    # Allow from all

    #

    Comment out the following line as follows:

    # LoadModule plsql_module /d1/ias/Apache/modplsql/bin/modplsql.so

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    Application Services Tier

    Apache Mod PL/SQL (dedicated listener)

    2. Configure the main listener to forward all mod_plsql requests to thededicated mod PL/SQL listener by adding the following line:

    ProxyPass /pls/ http://sechost.us.oracle.com:8888/pls/

    For the dedicated mod PL/SQL Listener running on Port 8888, configure eachDAD to override the default CGI environment variables in order to allowredirects. Edit the file $IAS_HOME/Apache/modplsql/cfg/wdbsvr.app and addthe following line for each DAD:

    cgi_env_list=SERVER_NAME=mainhost.us.oracle.com,SERVER_PORT=7000,HOST=mainhost.us.oracle.com:7000

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    Application Services Tier

    Apache Jserv / JVM Minimize Jserv logging

    log=true

    log.channel.warning=true

    log.file=/d1/ias/Apache/Jserv/logs/jserv_7000.log

    Review error log files for exceptions. Disable auto reload in production environments:

    autoreload.classes=false

    autoreload.file=false

    Use Jserv Auto Load Balancing

    Configure Multiple Zones. Provides higher availability and improves scalability.

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    Application Services Tier

    Apache Jserv / JVM Upgrade to the latest JDK (1.4.2_08).

    Do not disable hotspot or the JIT (i.e.DCOMPILER=NONE or Xint).

    Enable verbose GC in order to optimally tune theheap sizes based on the GC traffic.

    Minor Collections

    Major Collections

    Elapsed Time of GC

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    Application Services Tier

    Apache Jserv / JVM Enable Verbose GC Output

    Overload wrapper.bin with a shell wrapper in order toredirect stdout to a file.

    Existing:wrapper.bin=/apps/jdk/jdk1.4.2/bin/java

    Change To:Wrapper.bin=/apps/scripts/java.sh

    java.sh:=========

    /apps/jdk/jdk1.4.2/bin/java -verbosegc $* >> /apps/logs/java.log

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    Application Services Tier

    Apache Jserv / JVM (Verbose GC Output)/apps/logs/java.log:

    [GC 30460K->1369K(510848K), 0.1135695 secs][Full GC 15135K->1686K(510848K), 0.2700469 secs][GC 32123K->2131K(510848K), 0.0203634 secs]

    [GC 32595K->2130K(510848K), 0.0113639 secs][GC 32593K->2171K(510848K), 0.0129179 secs][GC 32635K->2419K(510848K), 0.0567306 secs][GC 32881K->3157K(510848K), 0.2906981 secs][GC 33620K->3197K(510848K), 0.0320023 secs][GC 33661K->3218K(510848K), 0.0103013 secs][GC 33674K->3309K(510848K), 0.0487887 secs]

    [GC 33769K->3532K(510848K), 0.0531514 secs][GC 33983K->3784K(510848K), 0.0552549 secs][GC 34248K->4056K(510848K), 0.0624969 secs][GC 34520K->4404K(510848K), 0.0555575 secs][GC 34868K->4828K(510848K), 0.0587044 secs][GC 35292K->5242K(510848K), 0.0945290 secs]

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    Application Services Tier

    Apache Jserv / JVM Utilize the verbose GC output to tune the JVM heaps

    (-Xmx and Xms) accordingly.

    Review the frequency of collections, especially

    major collections (i.e. Full GC). Start with:

    - -Xms256M and Xmx512M

    - -XX:NewSize=60M -XX:MaxNewSize=120M

    Above settings have been incorporated in 11i10.

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    Application Services Tier

    Apache Jserv / JVM Process Identification (V$SESSION)

    Specify the property DCLIENT_PROCESSID in theJVM startup shell script.

    Set automatically in 11i10.

    Existing:wrapper.bin=/apps/jdk1.4.2/bin/java

    Change To:Wrapper.bin=/apps/scripts/java.sh

    java.sh:=========#!/bin/sh/apps/jdk1.4.2/bin/java -verbosegc -DCLIENT_PROCESSID=$$ $* >> /d2/logs/java.log

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    Application Services Tier

    Apache Jserv / JVM Process Identification (V$SESSION) Allows you to map the JDBC session from v$session

    to a particular JVM process.

    Set automatically in 11i10SID MACHINE PROCESS MODULE LOGON---- ------------------------- ------------ ------------------ -----------------41 aptier1.us.oracle.com 28806 JDBC Thin Client 12/02/04 14:26:4342 aptier2.us.oracle.com 1723 JDBC Thin Client 12/02/04 14:27:0143 aptier3.us.oracle.com 3201 JDBC Thin Client 12/02/04 14:28:1544 aptier1.us.oracle.com 28807 JDBC Thin Client 12/02/04 14:29:17

    . . . . . . .. . . . . . .

    aptier1{apps_a}-> ps -ef | grep 28806

    apps_a 28806 28561 0 14:26:39 pts/20 0:00 /bin/sh ./java.shapps_a 28807 28806 53 14:26:40 pts/20 8:55 /jdk1.4.2/bin/../bin/sparc/native_threads/java

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    Application Services Tier

    Apache Jserv / JVM JDK 1.4.2 is Certified with Apps.

    Refer to MetaLink note 246105.1 for details onupgrading to the JDK 1.4.2.

    ~15% performance improvement. Parallel GC (-XX:+UseParNewGC)

    Detail GC Statistics (-XX:+PrintGCDetails)

    [GC [DefNew: 2047K->0K(2112K), 0.0012660 secs] 2472K->424K(3520K), 0.0014699 secs][GC [DefNew: 2047K->0K(2112K), 0.0012561 secs] 2472K->424K(3520K), 0.0014669 secs]

    [GC [DefNew: 2047K->0K(2112K), 0.0012672 secs] 2472K->424K(3520K), 0.0014754 secs][GC [DefNew: 0K->0K(2112K), 0.0018657 secs][Tenured: 20227K->227K(21416K), 0.1107343secs] 20227K->227K(23528K), 0.1387975 secs][GC [DefNew: 0K->0K(2112K), 0.0019746 secs][Tenured: 20227K->227K(21416K), 0.1105988secs] 20227K->227K(23528K), 0.1384847 secs][GC [DefNew: 0K->0K(2112K), 0.0019862 secs][Tenured: 20227K->227K(21416K), 0.1105816secs] 20227K->227K(23528K), 0.1386478 secs]

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    Application Services Tier

    Apache Jserv / JVM JDK 1.4 provides new JVM monitoring tool (jvmstat)

    Download fromhttp://developers.sun.com/dev/coolstuff/jvmstat/

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    Application Services Tier

    Java Server Pages (JSPs) Precompile the JSPs to avoid dynamic compilation. Users experience poor performance for the initial page loads. Potential deadlocks if multiple users attempt to compile the

    same JSP. Potential JVM death due to OutOfMemoryException during

    concurrent compilation. MetaLink Document 215268.1 provides the instructions and the

    patch reference for an automated script to perform theprecompilation.

    - ojspCompile Script With the latest version of ojspCompile, it takes 15 minutes to

    compile all the JSPs.

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    Application Services Tier

    Java Server Pages (JSPs) Use a separate JVM to perform the JSP compilation.

    Automatically set in 11i10.

    root.properties:

    servlet.oracle.jsp.JspServlet.initArgs=translate_params=true,unsafe_reload=false,page_repository_root=/appl_top/115/common/html/jsp/pagecache,alias_translation=true,developer_mode=false,javaccmd=/usr/jdk142/bin/javac,send_error=true

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    Application Services Tier

    Portal Tuning Tune the number of content fetcher threads for PPE

    (poolSize). Default is 25.

    Adjust the fetch request timeout (requesttime).

    Adjust the fetch connection request timeout (stall).

    zone.properties:

    servlet.page.initArgs=poolSize=50

    servlet.page.initArgs=requesttime=200servlet.page.initArgs=stall=100

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    Application Services Tier

    Portal Tuning Ensure that the mod PL/SQL cache is enabled and

    sized appropriately:

    $APACHE_TOP/modplsql/cfg/cache.cfg:

    [PLSQL Cache]enabled=yestotal_size=100000000cleanup_size=75000000cleanup_interval=86400;

    [Cookie Cache]enabled=yestotal_size=25000000cleanup_size=15000000cleanup_interval=86400max_size = 0

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    Application Services Tier

    Discoverer 4i Viewer Tuning Disable Query Prediction by setting QPPEnable=0 in pref.txt.

    Set ObjectsAlwaysAccessible=1 to avoid extra workbookSQL validation, and related dictionary SQL.

    Set the Query Governor option Limit retrieved query data to:

    to 100 rows. Set the option After opening a worksheet: to Dont run

    query.

    Ensure Custom workbooks define mandatory parameters.

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    Network Performance

    Network performance is often neglected.

    Networks with poor latency or low bandwidthimpacts user response time.

    Can also impact concurrent programs if the

    network between the application tier and dataserver tier is not optimal.

    A direct switch should be used between theapplication tier and data server tier Latency should ideally be ~1-2ms per round-trip.

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    Network Performance

    Use the ping command to determine the latency of requests. Varythe packet size to determine the average latency. Do not use thedefault ping packet size of 32 bytes.

    D:\>ping aptierhost.us.oracle.com -l 2048

    Pinging aptierhost.us.oracle.com [139.185.128.27] with 2048 bytes of data:

    Reply from 139.185.128.27: bytes=2048 time=371ms TTL=252Reply from 139.185.128.27: bytes=2048 time=330ms TTL=252Reply from 139.185.128.27: bytes=2048 time=361ms TTL=252Reply from 139.185.128.27: bytes=2048 time=360ms TTL=252

    D:\>ping aptierhost.us.oracle.com -l 512

    Pinging aptierhost.us.oracle.com [139.185.128.27] with 512 bytes of data:

    Reply from 139.185.128.27: bytes=512 time=231ms TTL=252Reply from 139.185.128.27: bytes=512 time=210ms TTL=252Reply from 139.185.128.27: bytes=512 time=231ms TTL=252Reply from 139.185.128.27: bytes=512 time=220ms TTL=252

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    Network Performance

    Use the ping command to determine the latency between theapplication server and the data server. Use a packet size of 2Ksince this the default size for SQL*Net traffic.

    aptierhost{applmgr}-2-> ping -s dbtierhost 2048

    PING dbtierhost.us.oracle.com: 2048 data bytes2056 bytes from dbtierhost.us.oracle.com (144.25.76.250): icmp_seq=0. time=1. ms2056 bytes from dbtierhost.us.oracle.com (144.25.76.250): icmp_seq=1. time=1. ms2056 bytes from dbtierhost.us.oracle.com (144.25.76.250): icmp_seq=2. time=1. ms2056 bytes from dbtierhost.us.oracle.com (144.25.76.250): icmp_seq=3. time=1. ms2056 bytes from dbtierhost.us.oracle.com (144.25.76.250): icmp_seq=4. time=1. ms2056 bytes from dbtierhost.us.oracle.com (144.25.76.250): icmp_seq=5. time=1. Ms

    ---- dbtierhost.us.oracle.com PING Statistics----6 packets transmitted, 6 packets received, 0% packet lossround-trip (ms) min/avg/max = 1/1/1

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    Network Performance

    Measure the sustained bandwidth on both theclient network (i.e. desktops) as well as theapplication-tiers.

    Use traceroute (or tracert) utility to determinenumber of hops and impact on latency.

    Monitor network statistics including packetrates, error rates, collisions, etc.. using tools

    such as netstat i.

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    Data Server Tier

    Refer to the MetaLink document 216205.1 Database InitializationParameters and Configuration for Oracle Applications 11i. Ensure mandatory parameters are set correctly.

    Optimally configure the buffer cache and shared pool as per theworkload and the number of users: [typical configuration for 2,000 Apps users]

    db_block_buffers=800,000 shared_pool_size=2000M

    A poorly sized buffer cache results in excessive buffer gets andphysical I/O.

    A poorly sized shared pool results in library cache and shared poollatch contention due to reloads and lack of space.

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    Data Server Tier

    Enable asynchronous I/O Consider using Quick I/O or equivalent if using file

    system based files for the DB files. Quick I/O improves performance and scalability by simulating

    raw devices, and avoiding file system cache traffic for the DB

    files. Use locally managed temp files (uniform) for the

    temporary tablespace. Install Stats Pack (spcreate.sql) and use spauto.sql to

    automate hourly snapshots. Stats Pack reports can be used to trend transaction

    rates and business flows.

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    Data Server Tier

    Stats Pack Report (Instance Summary)

    STATSPACK report for

    DB Name DB Id Instance Inst Num Release Cluster Host------------ ----------- ------------ -------- ----------- ------- ------------GSIAP 317772662 gsi1ap 1 9.2.0.5.0 YES agsidbs1

    Snap Id Snap Time Sessions Curs/Sess Comment------- ------------------ -------- --------- -------------------

    Begin Snap: 503400 18-May-05 11:00:01 ####### .0End Snap: 503405 18-May-05 16:00:04 ####### .0Elapsed: 300.05 (mins)

    Cache Sizes (end)~~~~~~~~~~~~~~~~~

    Buffer Cache: 5,313M Std Block Size: 8K

    Shared Pool Size: 2,864M Log Buffer: 1,024K

    . . . . . . . . . . . .

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    Data Server Tier

    Stats Pack Report (Instance Summary)

    Load Profile~~~~~~~~~~~~ Per Second Per Transaction

    --------------- ---------------Redo size: 462,767.56 26,266.16

    Logical reads: 54,537.81 3,095.50Block changes: 3,237.12 183.74

    Physical reads: 2,403.22 136.40Physical writes: 272.19 15.45

    User calls: 518.96 29.46Parses: 223.29 12.67

    Hard parses: 1.26 0.07Sorts: 199.15 11.30Logons: 1.85 0.11

    Executes: 1,566.48 88.91Transactions: 17.62

    % Blocks changed per Read: 5.94 Recursive Call %: 88.46Rollback per transaction %: 3.18 Rows per Sort: 102.78

    . . . . . . . . . . . .

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    Data Server Tier Stats Pack Report (Instance Summary)Instance Efficiency Percentages (Target 100%)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Buffer Nowait %: 99.90 Redo NoWait %: 100.00Buffer Hit %: 96.03 In-memory Sort %: 99.96Library Hit %: 99.87 Soft Parse %: 99.44

    Execute to Parse %: 85.75 Latch Hit %: 99.82Parse CPU to Parse Elapsd %: 69.57 % Non-Parse CPU: 97.34

    Shared Pool Statistics Begin End------ ------

    Memory Usage %: 90.55 76.14% SQL with executions>1: 66.70 75.37

    % Memory for SQL w/exec>1: 60.86 71.08

    Top 5 Timed Events~~~~~~~~~~~~~~~~~~ % Total

    Event Waits Time (s) Ela Time-------------------------------------------- ------------ ----------- --------db file sequential read 16,187,270 134,274 31.12CPU time 110,764 25.67global cache cr request 21,410,811 66,129 15.33db file scattered read 3,184,765 23,571 5.46KJC: Wait for msg sends to complete 10,722,532 20,446 4.74

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    Data Server Tier Stats Pack Report (Wait Events)

    AvgTotal Wait wait Waits

    Event Waits Timeouts Time (s) (ms) /txn---------------------------- ------------ ---------- ---------- ------ --------db file sequential read 16,187,270 0 134,274 8 51.0global cache cr request 21,410,811 56,241 66,129 3 67.5db file scattered read 3,184,765 0 23,571 7 10.0KJC: Wait for msg sends to c 10,722,532 194,069 20,446 2 33.8row cache lock 74,583 5,842 17,796 239 0.2 wait for unread message on b 73,977 4,624 13,054 176 0.2SQL*Net more data to client 6,021,483 0 8,873 1 19.0enqueue 114,204 19,898 7,427 65 0.4 buffer busy global CR 516,382 18 4,735 9 1.6 buffer busy waits 434,054 192 3,857 9 1.4direct path read 1,239,648 0 3,226 3 3.9inactive session 1,774 1,774 1,784 1006 0.0latch free 242,171 19,203 1,694 7 0.8db file parallel read 121,670 0 1,280 11 0.4direct path write 1,270,008 0 1,110 1 4.0log file sync 604,002 244 1,097 2 1.9SQL*Net message from dblink 20,365 0 1,080 53 0.1

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    Data Server Tier Review Top 5 Timed Events section in the Stats Pack

    reports to determine the overall instance utilization.

    For latch free waits, latch contention is often a symptomdue to a legitimate problem such as non-sharable SQL,sub-optimal SQL which performs full table or full index

    scans, dynamic object creation/removal, etc.. Review the latch Statistics section of the Stats Pack report to

    determine the hot latches.

    Enable tracing for a few of the sessions waiting on the latch

    as well as the holder to determine the actual cause.

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    Data Server Tier Stats Pack Report (Expensive SQL)

    CPU ElapsdPhysical Reads Executions Reads per Exec %Total Time (s) Time (s) Hash Value--------------- ------------ -------------- ------ -------- --------- ----------

    3,413,015 1 3,413,015.0 7.9 1970.29 6716.03 976039043Module: ALECDCSELECT distinct ooha.order_number , fu.user_name , rac.customer_name , to_char(wctc.last_update_date, 'DD-MON-YY hh24:mi') , DECODE(SUBSTR(wctc.comments, 1, 21),

    'NOTE: This Order-Line', wctc.process_flag || ': manually screened', DECODE(wctc.process_flag ,'101','101: host u

    2,229,632 1 2,229,632.0 5.2 2115.49 35448.22 1280227044Module: ALECDCselect distinct pv.segment1 , nvl(pv.vendor_name_alt, pv.vendor_name) , ai.invoice_num , hr.name ,

    '[email protected]' from po_vendors pv ,ap_invoices_all ai , ap_holds_all ah , hr_organi

    zation_units hr where ai.payment_status_flag||''='Y' and

    1,990,002 1 1,990,002.0 4.6 2321.34 23934.41 4063073269Module: OKILOADDRBEGIN OKI_REFRESH_PUB.REFRESH_ADDRS( :errbuf, :rc ); END;

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    Data Server Tier Monitor CPU and Memory Utilization

    Monitor paging

    Monitor I/O statistics, including service times.

    Review Stats Pack reports and correlate top

    SQL to the business flows. Review expensive custom SQL

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    Data Server Tier Gathering Statistics

    Do not gather statistics excessively on entireschemas or the entire database such as nightly orweekly.

    Do not gather statistics on permanentobjects during

    peak intervals. Gathering statistics invalidates cursors Gathering statistics requires dictionary and object

    level locks. Plans are not likely to change if the data distribution

    has not changed.

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    Data Server Tier Gathering Statistics

    For tables which are growing at a rapid rate, gatherstatistics only on those tables.

    Use only FND_STATS or the Gather Schema andGather Table Statistics Concurrent Programs

    Do NOT USE the analyze nor dbms_stats commanddirectly. It is not supported, and results in sub-optimal plans.

    Review the table and index statistics for the objects

    which appear in the top SQL section of Stats Pack.

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    Data Server Tier Gathering Statistics Enhancements (11i10)

    Gather Schema Statistics Auto Gather option

    - Gather Statistics only on tables which have changed

    - Change threshold is user definable.

    - Utilizes the Table Monitoring feature. To enable schemamonitoring:

    -SQL> exec fnd_stats.ENABLE_SCHEMA_MONITORING()

    Auto List option

    - Lists the objects which have changed. Maintain history of Statistics Collection No Invalidate Option

    - Does not invalidate cursors.

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    Data Server Tier Gathering Statistics Enhancements (11i10)

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    Data Server Tier Verifying the StatisticsSQL> set serveroutput onSQL> exec apps.fnd_stats.verify_stats ('ONT','OE_ORDER_LINES_ALL');===================================================================================================Table OE_ORDER_LINES_ALL===================================================================================================last analyzed sample_size num_rows blocks12-03-2004 22:59 3726829 37268290 3527197

    Index name last analyzed num_rows LB DK LB/key DB/key CF----------------------------------------------------------------------------------------------------OE_ORDER_LINES_N1 12-03-2004 22:12 36018080 87310 2097282 1 5 11719150OE_ORDER_LINES_N10 12-03-2004 22:12 26519270 68610 2230418 1 4 10949180OE_ORDER_LINES_N11 12-03-2004 22:12 16310880 96200 11196380 1 1 7668050OE_ORDER_LINES_N12 12-03-2004 22:12 50 1 20 1 1 19OE_ORDER_LINES_N13 12-03-2004 22:12 1363149 3132 138681 1 3 547938. . .. . .OE_ORDER_LINES_N5 12-03-2004 22:12 0 0 0 0 0 0

    OE_ORDER_LINES_N6 12-03-2004 22:12 158583 410 158670 1 1 85032OE_ORDER_LINES_N7 12-03-2004 22:12 103459 238 18873 1 2 48075OE_ORDER_LINES_N9 12-03-2004 22:12 4276030 11060 3101971 1 1 2444110OE_ORDER_LINES_U1 12-03-2004 22:12 37510470 91790 37510470 1 1 17574490----------------------------------------------------------------------------------------------------Histogram StatsSchema Table Name Status last analyzed Column Name----------------------------------------------------------------------------------------------------ONT OE_ORDER_LINES_ALL present 03-12-2004 22:59 OPEN_FLAG

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    Data Server Tier Verifying the Statistics Column StatisticsSQL> set serveroutput onSQL> exec apps.fnd_stats.verify_stats ('ONT','OE_ORDER_LINES_ALL',0,TRUE);===================================================================================================Table OE_ORDER_LINES_ALL===================================================================================================last analyzed sample_size num_rows blocks12-03-2004 22:59 3726829 37268290 3527197

    ----------------------------------------------------------------------------------------------------Column StatsColumn name sample_size num_distinct num_nulls density last analyzed---------------------------------------------------------------------------------------------------- ACCOUNTING_RULE_DURATION 0 37219060 0 12-03-2004 22:51 ACCOUNTING_RULE_ID 1882057 72 18398490 .013888888 12-03-2004 22:34. . .BOOKED_FLAG 3724692 2 0 .5 12-03-2004 22:51. . .CANCELLED_FLAG 3724692 2 0 .5 12-03-2004 22:51

    . . .LINE_ID 3721906 37219060 0 .000000026 12-03-2004 22:34LINE_NUMBER 3721906 5649 0 .000177022 12-03-2004 22:34LINE_SET_ID 10420 18873 37114860 .000052985 12-03-2004 22:34OPTION_NUMBER 1350665 1176 23740270 .00085034 12-03-2004 22:51ORDERED_ITEM_ID 3210194 50265 5117120 .000019894 12-03-2004 22:34UPGRADED_FLAG 3125945 2 5987470 .5 12-03-2004 22:51 VEH_CUS_ITEM_CUM_KEY_ID 0 37219060 0 12-03-2004 22:34 VISIBLE_DEMAND_FLAG 668876 2 30558160 .5 12-03-2004 22:51

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    Data Server Tier Enable the Auto memory manager

    Pga_aggregate_target can be set to tune the PGA for the entireinstance.

    Automatically tunes hash area and sort area sizes Returns unused memory to the OS.

    Enable System Managed Undo

    No more ORA-1555s!!! Set undo_retention to the length of the longest running request.

    Utilize Auto Segment Tablespace Management No need to manually set Freelist/freelist groups. A bitmap is used to

    automatically scale the segment related parameters.

    Enable PL/SQL Native Compilation Improves PL/SQL execution performance. Improves scalability by removing a lot of stress off of the shared

    pool.

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    Data Server Tier

    New Tablespace Model for the eBusiness Suite: Consolidates the number of Apps tablespaces from 400

    tablespaces to 10.

    Optimizes performance via the wide stripe model.

    Ideal for customers migrating to RAC or migrating to rawdevices.

    Uniform extents, locally managed

    No more fragmentation!

    Migration script can be used to migrate a schema at a time.

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    Data Server Tier New Tablespace Model for the eBusiness Suite:

    Objects are classified by object type and access patterns:

    Transaction tables Transaction indexes Reference/SEED Interface

    Summary Management Archive NoLogging Queue Media Temporary Undo System Total = 12 Tablespaces

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    Data Server Tier

    Applications Tablespace Migration Utility MetaLink note 248857.1 ARU # is 3381489

    Migration timings: (complete migration) 1.4 Terabyte customer DB

    24 hours New size of DB after migration (850 GB).

    250 GB customer DB 4 hours New size of DB after migration (150 GB).

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    Application Tuning

    Review the MetaLink note RecommendedPerformance Patches for the Oracle E-Business Suite, 244040.1. Recommended performance patches for all the

    modules and tech. stack components areconsolidated in this note.

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    Application Tuning Workflow

    When starting background engines via Concurrent Manager,set the Process Stuck parameter to No.

    Start a separate background engine to handle stuckprocesses with a very low frequency such as once or twice aday.

    Use deferred activities to improve online response times andfacilitate asynchronous processing for flows such asScheduling, PO Document Approval, etc..

    Establish a regular frequency for purging Workflow runtimedata (FNDWFPR - Purge Obsolete Workflow Runtime Data).

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    Application Tuning Order Management

    OM Pack J contains numerous performance fixes includingPricing performance fixes.

    Ensure that debugging is disabled: OM: Debug Level, set to 0 for OFF QP: Debug Mode, set to Request Viewer Off

    WSH: Debug Enabled, set to No WSH: Debug Level, set to 0 for OFF

    Use the streamlinedworkflows. Removes unnecessary activities and sub-processes. Improves performance and amount of WF data

    significantly. New streamlined flow in 11.5.10

    - Line Flow Generic: Performance Refer to MetaLink note 130511.1

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    Application Tuning Order Management

    For online order entry, use the new Quick Sales Order Form Provides a checkbox deferred pricing which can be

    used to defer price calculation until the order is saved.

    Also improves overall speed of order entry from afunctional / navigational perspective.

    Enable AutoScheduling

    Use deferred activities

    Tax Calculation

    Credit Check

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    Application Tuning Payroll

    Tune the number of threads, chunk size and the buffer sizes(pay_action_parameters):

    THREADS=25 CHUNK_SIZE = 20 BAL BUFFER SIZE=550 EE BUFFER SIZE =550 RR BUFFER SIZE =550 COST BUFFER SIZE=550

    Set threads to 1.5-2.0 times the number of data server

    processors. Set LOW_VOLUME=N to enable optimal plans.

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    Application Tuning

    OA Framework Applications Refer to MetaLink note 123456.1 (Recommended Patches for

    Applications) and MetaLink note 275880.1 (Framework Roadmap). If running FWK 5.7, ensure that you are running the latest rollup

    patch for 5.7H. Refer to MetaLink note 258333.1.

    Upgrade to the latest 9iR2 JDBC Drivers (MetaLink note164317.1) Pool Monitor can be used to monitor the resource utilization

    Application Module Pool Memory Utilization JVM Properties Pre 11i10: https:///servlet/OAAppModPoolMonitor 11i10: Login->Diagnostics->Show Pool Monitor.

    http://var/www/apps/conversion/current/tmp/scratch4030/https://%3Chostname%3E/servlet/OAAppModPoolMonitorhttp://var/www/apps/conversion/current/tmp/scratch4030/https://%3Chostname%3E/servlet/OAAppModPoolMonitor
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    Application Tuning OA Framework Applications (Pool Monitor)

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    Application Tuning OA Framework Applications (Pool Monitor)

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    Application Tuning (OA)

    Tracing Framework Applications Set profile FND : Diagnostics to Yes at user level

    Login to Self Service as the above user

    Click on Diagnostics icon at the top of page Select Set Trace Level and click Go

    Select the desired trace level and click Save

    Perform the activity that you want to trace

    Exit application

    (O )

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    Application Tuning (OA)

    Tracing Framework Applications

    A li i T i

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    Application Tuning

    AOLJ Connection Pool (dbc configuration) $FND_TOP/secure/.dbc

    Number of DB connections used by the Java based Self-Service Applications.

    - Start with a reasonable default such as 100 or 200.

    FND_JDBC_MAX_CONNECTIONS=200

    - Tune FND_JDBC_MAX_CONNECTIONS as per theamount of user concurrency (per JVM).

    AOLJ automatically decays idle connections and resizes

    the pool.

    A li ti T i

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    Application Tuning

    AOLJ Connection Pool (dbc configuration) Disable sanity checks in production environments

    FND_JDBC_USABLE_CHECK=false

    FND_JDBC_PLSQL_RESET=false

    Reduce the number of OXTA JDBC connections

    In jserv.properties file, add the following entries

    - wrapper.bin.parameters=-DOXTAOutThreads=1

    - wrapper.bin.parameters=-DOXTAInPoolSize=1

    If running multiple JVMs, the OXTA connections can be a

    significant portion of the total JDBC connections. Automatically set in 11i10

    A li ti T i

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    Application Tuning AOLJ Connection Pool (dbc configuration)

    AOLJ Supports the use of Services for RAC loadbalancing or failover.

    Patch 2566387 allows the use of service names inthe configuration:

    - New dbc parameter APPS_JDBC_URL

    - Used in place of DB_HOST, DB_NAME,DB_PORT

    - Useful for automatic connection load balancing

    APPS_JDBC_URL=jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(LOAD_BALANCE=ON)(ADDRESS=(PROTOCOL=TCP)(HOST=ap201ops)(PORT=1526))(ADDRESS=(PROTOCOL=TCP)(HOST=ap202ops)(PORT=1526)))(CONNECT_DATA=(SERVICE_NAME=opsperf)))

    A li ti T i

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    Application Tuning AOLJ Connection Pool Monitoring

    Use the JSP (AoljDbcPoolStatus.jsp) to monitor theconnection pool status.

    Lists DBC configuration parameter settings.

    Connection Statistics

    -Locked Connections- Available Connections

    - Closed Connections

    - Allows drill-downs to determine source of theconnection.

    http://apptier.oracle.com:1200/OA_HTML/jsp/fnd/AoljDbcPoolStatus.jsp

    A li ti T i

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    Application Tuning Connection Pool Status (AoljDbcPoolStatus.jsp)

    A li ti T i

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    Application Tuning

    Purging Implement a regular purge process includingtransient data as well as obsolete transactional data.

    Archive system related entities prior to purge such

    as FND_CONCURRENT_REQUESTS

    ICX_SESSIONS

    Purge old data before performing upgrades.

    A li ti T i

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    Application Tuning

    Product Concurrent Program Name

    FND Purge Concurrent Requestand/or Manager Data

    Purge "Sign on" Audit data

    General Ledger GL Archive and Purge

    Assets Mass Additions Purge Report

    Purge accounting tables

    Payables PurgeReceivables Archive and Purge

    Order Management Order Purge

    Purging

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    Order Management Significant improvements in pricing and order

    management.

    ,1111

    ,1111

    1

    1111

    11111

    11111

    11111

    11111

    11111

    11111

    11111

    HVOP Order Import Throughput

    . .1111

    . .11111

    11i10 Performance Improvements

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    Order Management New Java Pricing Engine

    ,111

    ,1111

    1

    1111

    11111

    11111

    11111

    11111

    Order Throughput with Pricing

    . .1111

    . .11111

    11i10 Performance Improvements

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    Inventory / Shipping 20% improvement in Pick Release.

    25% improvement in Interface Trip Stop.

    2X improvement in Ship Confirm.

    11i10 Performance Improvements

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    Workflow Improvements Java Mailer

    Parallel worker support 15,000 notifications per hour (per worker)

    Workflow engine runtime Improved Caching

    -Asset Import (5X)

    - Order Management (5%) Integration with GSM

    Business Event Listener

    Mailer

    11i10 Performance Improvements

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    Payroll Improvements New Run Balances Architecture (HRMS FP F) Improves reporting performance significantly (~90%):

    TRR 95%+

    Payroll Register 90%+ US and Canadian Forms and Reports utilize the new Balance

    Reporting Architecture. Custom reports which utilize the balance user exit also benefit

    from the new run balances arch.

    Payroll run improves by 15%. Suppression of zero and null balances provides an

    additional 10% performance improvement.

    11i10 Performance Improvements

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    TCA Customer Import Completely rewritten. Requires 9iR2 (or higher).

    Scales well with parallel workers. 300K customers per hour per worker 1 million customers imported in one hour using 4

    workers.

    11i10 Performance Improvements

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    11i10 Tracing Improvements (PL/SQL Profiler Report)

    11i10 Performance Improvements

    11i10 Performance Improvements

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    11i10 Tracing Improvements (PL/SQL Profiler Report)

    11i10 Performance Improvements

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    11i10 Tracing Improvements (Performance Info.)

    11i10 Performance Improvements

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    FND_STATS Improvements: No invalidate option can be used to avoid invalidating cursors

    while gathering statistics. Auto Gather has been added to allow statistics to be gathered

    only on those objects which have changed. Change threshold is configurable. Default is 10%. Significantly reduces the time to gather statistics. Improves manageability as FND_STATS automatically

    determines changed object list. Maintain history of all gather stats requests. Automatically determines degree of parallelism.

    11i10 Performance Improvements

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    Configuration Enhancements Reviewed and optimized default settings for the entire stack via

    AutoConfig templates including: Forms JDK DB Concurrent Manager Discoverer AOLJ DBC

    Customer Sequence Cache settings are preserved acrosspatches/upgrades if current setting exceeds standard default.

    AutoConfig support for complex configurations including RAC,Load Balancing, Firewalls, etc..

    11i10 Performance Improvements

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    Significant reduction in patching downtime Parallelized large table updates.

    FNDLOAD Improvements

    15% for small LDTs

    Orders of magnitude for large LDTs.

    Improvements to distributed AD.

    Large indexes are now created in parallel.

    APPS_MRC schema has been eliminated.

    Optimized PL/SQL recompilation order for invalid objects.

    11i10 Performance Improvements

    MetaLink References

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    MetaLink ReferencesNote #: Description:

    123456.1 E-Business Suite Recommended Patch List125767.1 Upgrading Developer 6i with Oracle Applications 11i

    138159.1 Canceling Long Running Queries in Oracle Applications 11i

    164317.1 Upgrading Oracle JDBC Drivers with Oracle E-Business Suite 11i

    215268.1 Implementing and Using the JSP Precompiler

    216205.1 Database Initialization Parameters and Configuration for Oracle Applications11i

    244040.1 Recommended Performance Patches for Oracle E-Business Suite

    246105.1 Using J2SE Version 1.4 with Oracle E-Business Suite 11i, Release 11.5.9 orHigher

    248857.1 Oracle Applications Tablespace Model Release 11i - Tablespace MigrationUtility

    258333.1 About OA Framework Mini-pack 11i.FWK.H

    275880.1 Oracle Applications Framework Release 11i Documentation Road Map

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    AQ&Q U E S T I O N SQ U E S T I O N SA N S W E R SA N S W E R S