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Go-Faster Consultancy Ltd. 1
Performance Metrics:What to Measure in the
PeopleSoft 8 Environment
David KurtzGo-Faster Consultancy Ltd.
www.go-faster.co.uk
Go-Faster Consultancy Ltd. 2
Agenda
• What is Performance Tuning?
• On-Line
• Batch
• What has been achieved?
• Questions?
Go-Faster Consultancy Ltd. 3
Rules of Engagement
• If you can’t hear me - say so now!
• Feel free to ask on-topic questions during the presentation.
• This presentation (with notes) will be available on the Tech SIG page on Customer Connection and on – www.go-faster.co.uk
Go-Faster Consultancy Ltd. 4
Who am I?
• DBA– Independent consultant– Performance tuning
– UK Oracle User Group • Unix SIG Chair
• www.ukoug.org
Go-Faster Consultancy Ltd. 5
Aphorism
• Performance is exactly what the user perceives it to be. No more, no less.
• Poor performance is when the user’s perception does not match their expectation.
Go-Faster Consultancy Ltd. 6
Aphorism
• Performance Tuning is a search for lost time.
Go-Faster Consultancy Ltd. 7
Aphorism
• When you have eliminated the impossible, whatever remains, however improbable, must be the truth.
– A Study in Scarlet, Arthur Conan-Doyle
• It is a capital mistake to theorise before one has data.
The Memoirs of Sherlock Holmes, Arthur Conan-Doyle
Go-Faster Consultancy Ltd. 8
Aphorism
• Detection is, or ought to be, an exact science. It should be be treated in the same cold and unemotional manner.– The Sign of Four, Arthur Conan-Doyle
Go-Faster Consultancy Ltd. 9
PIA (On-Line) Performance
• Architecture– brief overview
• Sources of Metrics
• Graphical Techniques
• Tracing
• Techniques
Go-Faster Consultancy Ltd. 10
It isn’t always the database!
• Understand architecture– Web front end– Network– Application server– Database
• What can you measure?
Go-Faster Consultancy Ltd. 11
PeopleSoft Internet Architecture
• PIA is 4-tier architecture– Each component can contribute to response
time– Need to measure each component
Java Servlet
(presentation logic)
Java Servlet
(presentation logic)
Tuxedo Application
Server
(application logic)
Tuxedo Application
Server
(application logic)
DBMS
(application data & meta-
data
DBMS
(application data & meta-
data
SQLTuxedo
Messagehttp / https
Go-Faster Consultancy Ltd. 12
Sources of Metrics (1)
• Browser– Proxy Server– 3rd Party software
• Local agent on PC
• Web Server– Access Log
Go-Faster Consultancy Ltd. 13
Sources of Metrics (2)
• BEA/Tuxedo– Service Trace– TMADMIN
• Oracle Database– SQL_Trace– PSFT Application Server Trace
Go-Faster Consultancy Ltd. 14
Hint
• All the data collected on a time base.
• Therefore, make sure that the clocks on all machines are synchronised at least with each other.– PC clocks are particularly liable to drift.
Go-Faster Consultancy Ltd. 15
Sources of Metrics
Java Servlet
(presentation logic)
Java Servlet
(presentation logic)
Tuxedo Application
Server
(application logic)
Tuxedo Application
Server
(application logic)
DBMS
(application data & meta-data
DBMS
(application data & meta-data
SQLTuxedo
Messagehttp / https
Webserver Access Log
Proxy ServerAccess Log
Go-Faster Consultancy Ltd. 16
Web/Proxy Access Log
• Standard format for access log– www.w3.org/pub/WWW/TR/logfile.html
– Apache is different
Go-Faster Consultancy Ltd. 17
Web/Proxy Access Log
• Fields– Date, Time (finish not start)– Time Taken
• accurate to OS time units (1/100ths or 1/1000ths)
• only 1s on Apache
– Message size bytes– Client IP addresses & DNS names– URI stem & Query
Go-Faster Consultancy Ltd. 18
How to Enable WebLogic Trace
#weblogic.properties
#required
weblogic.httpd.enableLogFile=true
weblogic.httpd.logFileName=access.log
weblogic.httpd.logFileFormat=extended
#recommended
weblogic.httpd.logRotationType=date
weblogic.httpd.logRotationPeriodMins=1440
weblogic.httpd.logRotationBeginTime=11-24-2000-00:00:00
Go-Faster Consultancy Ltd. 19
Sample WebLogic Access Log
#Version: 1.0#Fields: date time time-taken bytes c-ip c-dns cs-method sc-status cs-
uri-stem cs-uri-query 2002-03-15 21:51:03 0.981 8057 10.0.0.2 go-faster-1 GET
200 /servlets/iclientservlet/peoplesoft8/signon.html-
2002-03-15 21:51:03 0.11 2103 10.0.0.2 go-faster-1 GET200 /peoplesoft8/signin.css -
2002-03-15 21:51:04 0.05 1186 10.0.0.2 go-faster-1 GET200 /peoplesoft8/images/secondaryPSFTLogo.gif -
2002-03-15 21:51:10 3.414 8101 10.0.0.2 go-faster-1 POST200 /servlets/iclientservlet/peoplesoft8/
ICType=Panel&Menu=ADMINISTER_WORKFORCE_(GBL)&Market=GBL&PanelGroupName=PERSONAL_DATA&RL=&target=main2
Go-Faster Consultancy Ltd. 20
Apache Access Log
#httpd.confLogFormat "%{%Y.%m.%d %H:%M:%S}t|%T|%B|%u|%h|%{User-Agent}i|%>s|%m|%U|%q" monitoring
CustomLog logs/access.log monitoring
Go-Faster Consultancy Ltd. 21
Sample Apache Access Log
2002.02.26 09:57:06|0|275|-|127.0.0.1|Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 4.0; Q312461)|200|GET|/peoplesoft8/cache/PT_NEXTTAB_ENG_1.gif|
2002.02.26 09:57:17|0|31847|-|127.0.0.1|Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 4.0; Q312461)|200|POST|/servlets/iclientservlet|?ICType=Panel&Menu=ADMINISTER_WORKFORCE_(GBL)&Market=GBL&PanelGroupName=JOB_DATA
2002.02.26 09:57:26|0|30959|-|127.0.0.1|Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 4.0; Q312461)|200|POST|/servlets/iclientservlet|?ICType=Panel&Menu=ADMINISTER_WORKFORCE_(GBL)&Market=GBL&PanelGroupName=JOB_DATA
Go-Faster Consultancy Ltd. 22
What does the access log tell us?
• A date and time for every request
• Who made the request?
• How long did it take to serve?
• What was requested?– Which component (panel group)?
• Indicate possible bandwidth problems.
Go-Faster Consultancy Ltd. 23
Download Bandwidth
#version: 1.0#Fields: date time time-taken bytes c-ip c-dns
cs-method sc-status cs-uri-stem cs-uri-query2002-09-10 11:29:52 0.359 15832
141.93.249.74 141.93.249.74 GET 200/XXXXXXXX/images/topPSFTLogo.gif -
Go-Faster Consultancy Ltd. 24
Sources of Metrics
Java Servlet
(presentation logic)
Java Servlet
(presentation logic)
Tuxedo Application
Server
(application logic)
Tuxedo Application
Server
(application logic)
DBMS
(application data & meta-data
DBMS
(application data & meta-data
SQLTuxedo
Messagehttp / https
Tuxedo ServiceTrace
Go-Faster Consultancy Ltd. 25
BEA/Tuxedo Service Trace
• Edit psappsrv.ubx file
• CLOPT=“-r -e APPQ.stderr…”– -r enables trace to stderr file– -e qualifies name of stderr file
Go-Faster Consultancy Ltd. 26
Edit psappsrv.cfg
• Add a new variable to the trace section
• Thus service trace can be enabled/disabled from configuration file
• New variable will appear in the configuration dialogue
[Trace]
TuxedoServiceTrace=-r
Go-Faster Consultancy Ltd. 27
Edit psappsrv.ubx
• Change every CLOPT entry in psappsrv.ubx.
• File name is set manually. – Same as queue name
RQADDR="APPQ"CLOPT="{$Trace\TuxedoServiceTrace} -e {LOGDIR}
{FS}APPQ.stderr {$PSAPPSRV\Spawn Server} -s@..{FS}psappsrv.lst -- -C {CFGFILE} -D {$Domain Settings\Domain ID} -S PSAPPSRV"
Go-Faster Consultancy Ltd. 28
Resultant psappsrv.ubb
• When domain is configured .ubb file is generated. All variables are fully resolved.
CLOPT=”-r -e D:\ps\hr8\appserv\hr8d\LOGS\APPQ.stderr -p 1,600:3,10 -s@..\psappsrv.lst -s@..\psqcksrv.lst -sICQuery -sSqlQuery:SqlRequest -- -C psappsrv.cfg -D HR8D -S PSAPPSRV"
Go-Faster Consultancy Ltd. 29
Sample Tuxedo Service Trace
• Each service called to domain is loggedSERVICE PID SDATE STIME EDATE ETIME ------- --- ----- ----- ----- ----- @ICScript 390 1014717320 4586495 1014717322 4588397 @ICScript 390 1014717322 4588467 1014717322 4588537@ICScript 390 1014717322 4588557 1014717323 4589259@ICScript 390 1014717332 4598021 1014717332 4598171@ICScript 390 1014717355 4621745 1014717361 4627554@ICScript 390 1014717365 4631329 1014717366 4632511@ICScript 390 1014717375 4641944 1014717377 4643306@ICPanel 390 1014717380 4646761 1014717381 4647783@ICPanel 390 1014717388 4654202 1014717391 4657567@ICPanel 390 1014717396 4662614 1014717401 4667271
Go-Faster Consultancy Ltd. 30
Tuxedo Service Trace
• Service - Name of Service
• Pid - An OS PID of listener or handler
• Sdate/Edate - Start/End Date
– Seconds since 00:00hrs GMT 1st January 1970.
• Stime/Etime– Start/End Time in OS time units (1/ 100ths or 1/1000ths)
– Hence calculate accurate service duration
– Time on Server - not queuing
Go-Faster Consultancy Ltd. 31
Txrpt Utility
SERVICE SUMMARY REPORT
SVCNAME 9a-10a TOTALS Num/Avg Num/Avg--------------- -------- -------ICScript 8/1.43 8/1.43ICPanel 6/3.47 6/3.47JavaMgrGetObj 1/0.04 1/0.04GetCertificate 1/0.73 1/0.73--------------- ------- -------TOTALS 16/2.06 16/2.06
Go-Faster Consultancy Ltd. 32
Sources of Metrics
Java Servlet
(presentation logic)
Java Servlet
(presentation logic)
Tuxedo Application
Server
(application logic)
Tuxedo Application
Server
(application logic)
DBMS
(application data & meta-data
DBMS
(application data & meta-data
SQLTuxedo
Messagehttp / https
Tuxedo tmadmin
script
Go-Faster Consultancy Ltd. 33
BEA/Tuxedo TMADMIN Utility
• BEA Interactive command line interface
• Can be included in scripts– -r for read only in monitoring scripts
• pq (printqueue)
• psr (printserver)
• pclt (printclient)
Go-Faster Consultancy Ltd. 34
PQ
• What queues in domain
• How many servers on queue
• How many requests queued– (How much work on queue)
Prog Name Queue Name # Serve Wk Queued # Queued Ave. Len Machine--------- ------------------- --------- -------- -------- -------JSL.exe 00095.00200 1 - 0 - GO-FASTER+JREPSVR.exe 00094.00250 1 - 0 - GO-FASTER+PSSAMSRV.exe SAMQ 1 - 0 - GO-FASTER+BBL.exe 54455 1 - 0 - GO-FASTER+WSL.exe 00001.00020 1 - 0 - GO-FASTER+PSAPPSRV.exe APPQ 1 - 0 - GO-FASTER+
Go-Faster Consultancy Ltd. 35
PSR
• What servers exist?
• How many requests have they handled?
• What are they doing right now?
Prog Name Queue Name Grp Name ID RqDone Load Done Current Service--------- ---------- -------- -- ------ --------- ---------------BBL.exe 54455 GO-FAST+ 0 3 150 ( IDLE )PSAPPSRV.exe APPQ APPSRV 1 9 450 ICPanelPSSAMSRV.exe SAMQ APPSRV 100 0 0 ( IDLE )WSL.exe 00001.00020 BASE 20 0 0 ( IDLE )JSL.exe 00095.00200 JSLGRP 200 0 0 ( IDLE )JREPSVR.exe 00094.00250 JREPGRP 250 5 250 ( IDLE )
Go-Faster Consultancy Ltd. 36
PCLT
• Who is connected?
• Are they doing something?
• When did they connect?
LMID User Name Client Name Time Status Bgn/Cmmt/Abrt--------------- --------------- --------------- -------- ------- -------------GO-FASTER-1 NT WSH 0:21:14 IDLE 0/0/0GO-FASTER-1 NT JSH 0:21:13 IDLE 0/0/0GO-FASTER-1 NT tmadmin 0:00:00 IDLE 0/0/0GO-FASTER-1 PS JavaClient 0:02:30 BUSY/W 0/0/0
Go-Faster Consultancy Ltd. 37
Sources of Metrics
Java Servlet
(presentation logic)
Java Servlet
(presentation logic)
Tuxedo Application
Server
(application logic)
Tuxedo Application
Server
(application logic)
DBMS
(application data & meta-data
DBMS
(application data & meta-data
SQLTuxedo
Messagehttp / https
Oracle SQL*Trace
Go-Faster Consultancy Ltd. 38
Oracle SQL Trace
• Tuning tool • Session trace• Format it with TKPROF• Find long running SQL statements• Total SQL Time for sessioncall count cpu elapsed disk query current rows------- ------ -------- ---------- ---------- ---------- ---------- ----------Parse 72289 173.06 175.45 7 14654 94 0Execute 77140 64.02 67.37 205495 766343 170611 78630Fetch 50599 33.20 34.28 17302 971624 80146 143218------- ------ -------- ---------- ---------- ---------- ---------- ----------total 200028 270.28 277.10 222804 1752621 250851 221848
Go-Faster Consultancy Ltd. 39
Small Application Servers
• Create small application with just a single handler process
• Enable trace on that process
• Trace sample transaction (only one user)
sys.dbms_system.set_sql_trace_in_session(<sid>,<serial>,TRUE);
Go-Faster Consultancy Ltd. 40
Sources of Metrics
Java Servlet
(presentation logic)
Java Servlet
(presentation logic)
Tuxedo Application
Server
(application logic)
Tuxedo Application
Server
(application logic)
DBMS
(application data & meta-data
DBMS
(application data & meta-data
SQLTuxedo
Messagehttp / https
Webserver Access Log
Proxy ServerAccess Log
Tuxedo ServiceTrace
Oracle SQL*Trace
Tuxedo tmadmin
script
Go-Faster Consultancy Ltd. 41
Graphical Analysis
• Don’t drown in numbers– Draw a picture
• Load Data into Database– SQL_Loader (Oracle 9i External Table)
• Process Data– Matching, Aggregation
• Oracle Analytic Function
• Load data into Excel– Draw Graph
Go-Faster Consultancy Ltd. 42
Sample SQL*Loader File
LOAD DATAINFILE 'APPQ.stderr'REPLACEINTO TABLE txrpt WHEN (1) = '@'FIELDS TERMINATED BY WHITESPACETRAILING NULLCOLS(service "substr(:service,2)" -- remove leading @,pid,stimestamp ":stimestamp/
86400+2/24+TO_DATE('01011970','DDMMYYYY')",stime ":stime/100",queue ”’APPQ’",etime ":etime/100")
Go-Faster Consultancy Ltd. 43
Tips about Graphs
• Connect Excel directly to a database
• Aggregate data carefully– Too little and excel draws it badly because it adds a black border
around an area
– Too much and you lose details
• Pivot tables are useful– but Excel97 buggy
• Scatters and Trendlines– joining dots can obscure data
– Excel supports 32000 points per series
Go-Faster Consultancy Ltd. 44
Example: CPU Utilisation
Go-Faster Consultancy Ltd. 45
Example: Apache Servlet Times
Go-Faster Consultancy Ltd. 46
Longest http conversations
Go-Faster Consultancy Ltd. 47
Example: Tuxedo Service Time
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tmadmin - PCLT - Connect Client Sessions
Go-Faster Consultancy Ltd. 49
tmadmin - PCLT - Busy/Wait Users
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tmadmin - PQ - Queue Length
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tmadmin - PSR - print server processes
Go-Faster Consultancy Ltd. 52
Relating different metrics produces new information
Go-Faster Consultancy Ltd. 53
Batch Performance
• Sources of Metrics
• Graph
Go-Faster Consultancy Ltd. 54
Sources of Metrics (1)
• Process Scheduler Request Table– PSPRCSRQST
• need to archive this table
• maintain history in another table with on DELETE trigger
Go-Faster Consultancy Ltd. 55
Graphical Analysis
Go-Faster Consultancy Ltd. 56
Sources of Metrics(2)
• Application Engine Steps– PS_BAT_% tables– AE_TRACE=1024+128
• In Process Scheduler configuration (psprcs.cfg)
– Report to database and/or trace file
• Cobol Statement– Report to trace file
• SQL Trace
Go-Faster Consultancy Ltd. 57
Top AE Statements
AE PC % Cum % % Cum %Stmt Execute SQL SQL PC SQL SQL Total TotalRank Statement ID Count Time Time Time Time Time Time Time---- ---------------------------------------- -------- --------- -------- -------- ----- ------ ----- ------ 1 GP_PMT_PREP.CA000.CF000.S 13 11655.56 0.00 0.00 12.8 12.8 19.2 19.2 2 PeopleCode.Rowset.Fill GP_RSLT_ACUM 4725754 10065.02 0.00 0.00 11.1 23.9 16.6 35.9 3 GP_PMT_PREP.FA000.FH000.S 15 9828.60 0.00 0.00 10.8 34.8 16.2 52.1 4 GP_PMT_PREP.FA000.FC000.S 15 8556.60 0.00 0.00 9.4 44.2 14.1 66.2 5 GP_PMT_PREP.FA000.FG000.S 15 8553.51 0.00 0.00 9.4 53.6 14.1 80.3 6 GP_PMT_PREP.FA000.FB000.S 15 8322.51 0.00 0.00 9.2 62.8 13.7 94.1 7 PeopleCode.Rowset.Fill GP_RSLT_PIN 3177786 6906.78 0.00 0.00 7.6 70.4 11.4 105.5 8 PeopleCode.CNuK_ 4725754 4696.51 0.00 0.00 5.2 75.6 7.8 113.2 9 PeopleCode.CDfF0_PPNw 3409180 2392.33 0.00 0.00 2.6 78.2 3.9 117.2…
Go-Faster Consultancy Ltd. 58
Oracle SQL*Trace & TKPROF
• Enable SQL Trace on batch process• Process trace file with TKPROF
– report Top n statements– sort by
• Parse/Fetch/Execute • CPU/Elapsed Time
– statement timings/execution plan
call count cpu elapsed disk query current rows------- ------ -------- ---------- ---------- ---------- ---------- ----------Parse 36 0.02 0.01 0 0 0 0Execute 36 55.09 86.80 0 2973787 3 1Fetch 0 0.00 0.00 0 0 0 0------- ------ -------- ---------- ---------- ---------- ---------- ----------total 72 55.11 86.81 0 2973787 3 1
Go-Faster Consultancy Ltd. 59
Triggers
• Process Scheduler Status Change
• On-Connect
• Enable Trace• Archiving data during
purge routines• Altering session
parameters
Go-Faster Consultancy Ltd. 60
Process Scheduler
CREATE OR REPLACE trigger sysadm.set_trace
before update of runstatus on sysadm.psprcsrqst
for each row when (new.runstatus = 7 and old.runstatus != 7 and new.prcstype IN('Application Engine','COBOL SQL',
'SQR Process','SQR Report','SQR Report For WF Delivery'))
Go-Faster Consultancy Ltd. 61
On-Connect Triggers
create or replace trigger sysadm.psqrysrv_session_trigger
after logon on sysadm.schemadeclare
l_program VARCHAR(64);begin
SELECT program INTO l_program FROM v$sessionWHERE sid IN(SELECT sid FROM v$mystat WHERE rownum = 1);IF substr(l_program,1,8) = 'PSQRYSRV' OR INSTR(UPPER(l_program),'PSNVS') > 0 THEN
sys.dbms_session.set_sql_trace(true);...
Go-Faster Consultancy Ltd. 62
For example…
sys.dbms_session.set_sql_trace(true);ALTER SESSION SET EVENTS '10053 trace name
context forever, level 1’;ALTER SESSION SET EVENTS '10128 trace name
context forever, level 2’;ALTER SESSION SET optimizer_mode=FIRST_ROWS;ALTER SESSION SET optimizer_index_caching=100;ALTER SESSION SET optimizer_index_cost_adj=1;ALTER SESSION SET sort_area_size = 100000;sys.dbms_application_info.set_module('nVision','p
sqrysrv_session_trigger fired');
Go-Faster Consultancy Ltd. 63
Further sources of Information
• PSFT Customer Connection Red Papers– 8.4 PIA, Power Users
Go-Faster Consultancy Ltd. 64
Aphorism
• The problems change from release to release, but the methods by which they are investigated remain the same.
– Jonathan Lewis (author of Practical Oracle 8i)
Go-Faster Consultancy Ltd. 65
Questions?
Go-Faster Consultancy Ltd. 66
Aphorism
• You know my methods, apply them.– A Study in Scarlet, Arthur Conan-Doyle
Go-Faster Consultancy Ltd. 67
Performance Metrics:What to Measure in the
PeopleSoft 8 Environment
David KurtzGo-Faster Consultancy Ltd.
www.go-faster.co.uk