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On-Line Batch What has been achieved? Questions?`5Rules of EngagementIf 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$ Who am I?  aDBA Independent consultant Performance tuning UK Oracle User Group Unix SIG Chair www.ukoug.org6AA X   V1AphorismKPerformance is exactly what the user perceives it to be. No more, no less.X3Aphorism-Performance Tuning is a search for lost time.Y4AphorismWhen you have eliminated the impossible, whatever remains, however improbable, must be the truth. A Study in Scarlet, Arthur Conan-DoyleJb';   &c7AphorismDetection 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-Doyle2r%q$%XPIA (On-Line) PerformanceVArchitecture brief overview Sources of Metrics Graphical Techniques Tracing Techniques6 ; ;V:It isn t always the database!  _Understand architecture Web front end Network Application server Database What can you measure?622 `   PeopleSoft Internet ArchitecturehPIA is 4-tier architecture Each component can contribute to response time Need to measure each component$NN Sources of Metrics (1)PBrowser Proxy Server 3rd Party software Local agent on PC Web Server Access LogZ! ! Sources of Metrics (2)XBEA/Tuxedo Service Trace TMADMIN Oracle Database SQL_Trace PSFT Application Server TraceH ( (^HintAll 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.$,,h8Sources of Metrics  Web/Proxy Access LogUStandard format for access log www.w3.org/pub/WWW/TR/logfile.html Apache is different$77Web/Proxy Access LogFields 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 & Queryl*DD*  DIHow 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=11-24-2000-00:00:008 n^         JSample 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 GET 200 /peoplesoft8/signin.css - 2002-03-15 21:51:04 0.05 1186 10.0.0.2 go-faster-1 GET 200 /peoplesoft8/images/secondaryPSFTLogo.gif - 2002-03-15 21:51:10 3.414 8101 10.0.0.2 go-faster-1 POST 200 /servlets/iclientservlet/peoplesoft8/ ICType=Panel&Menu=ADMINISTER_WORKFORCE_(GBL)&Market=GBL&PanelGroupName=PERSONAL_DATA&RL=&target=main2__ L4E PRA2 Apache Access Log#httpd.conf LogFormat "%{%Y.%m.%d %H:%M:%S}t|%T|%B|%u|%h|%{User-Agent}i|%>s|%m|%U|%q" monitoring CustomLog logs/access.log monitoring>K 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_DATAAA&a*?22?2 !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.6k &k &YDownload Bandwidth#version: 1.0 #Fields: date time time-taken bytes c-ip c-dns cs-method sc-status cs-uri-stem cs-uri-query 2002-09-10 11:29:52 0.359 15832 141.93.249.74 141.93.249.74 GET 200 /XXXXXXXX/images/topPSFTLogo.gif -L!M H4\ ZSources of Metrics BEA/Tuxedo Service TraceEdit psappsrv.ubx file CLOPT= -r -e APPQ.stderr&  -r enables trace to stderr file -e qualifies name of stderr file$2A2Ab KEdit psappsrv.cfg,Add a new variable to the trace section Thus service trace can be enabled/disabled from configuration file New variable will appear in the configuration dialogue [Trace] TuxedoServiceTrace=-r(LEdit psappsrv.ubx, Change every CLOPT entry in psappsrv.ubx. File name is set manually. Same as queue name RQADDR="APPQ" CLOPT="{$Trace\TuxedoServiceTrace} -e {LOGDIR}{FS}APPQ.stderr {$PSAPPSRV\Spawn Server} -s@..{FS}psappsrv.lst -- -C {CFGFILE} -D {$Domain Settings\Domain ID} -S PSAPPSRV"VHH6mtQ#>MResultant 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"DVV-}G    Sample Tuxedo Service Trace~Each service called to domain is logged SERVICE 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 46672718(W'V(C> < ; ; ; < ;? ;!Tuxedo Service TraceService - 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_- # - '   Kb#@N Txrpt Utility_SERVICE SUMMARY REPORT SVCNAME 9a-10a TOTALS Num/Avg Num/Avg --------------- -------- ------- ICScript 8/1.43 8/1.43 ICPanel 6/3.47 6/3.47 JavaMgrGetObj 1/0.04 1/0.04 GetCertificate 1/0.73 1/0.73 --------------- ------- ------- TOTALS 16/2.06 16/2.06``; % `[Sources of Metrics "BEA/Tuxedo TMADMIN UtilityBEA Interactive command line interface Can be included in scripts -r for read only in monitoring scripts pq (printqueue) psr (printserver) pclt (printclient)6B'6B'6tj   #PQWhat 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+LIaI ` $b\$PSRWhat 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 ICPanel PSSAMSRV.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 ) ,YCYC PY %PCLTWho 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 0/0/0 GO-FASTER-1 NT JSH 0:21:13 IDLE 0/0/0 GO-FASTER-1 NT tmadmin 0:00:00 IDLE 0/0/0 GO-FASTER-1 PS JavaClient 0:02:30 BUSY/W 0/0/0,DD b2\Sources of Metrics &Oracle SQL TraceTuning tool Session trace Format it with TKPROF Find long running SQL statements Total SQL Time for session call count cpu elapsed disk query current rows ------- ------ -------- ---------- ---------- ---------- ---------- ---------- Parse 72289 173.06 175.45 7 14654 94 0 Execute 77140 64.02 67.37 205495 766343 170611 78630 Fetch 50599 33.20 34.28 17302 971624 80146 143218 ------- ------ -------- ---------- ---------- ---------- ---------- ---------- total 200028 270.28 277.10 222804 1752621 250851 221848Dm8m 6 | zCSmall 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(,,TRUE);4?>> k9Sources of Metrics 5Graphical 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&  &  m:Sample SQL*Loader FilebLOAD DATA INFILE 'APPQ.stderr' REPLACE INTO TABLE txrpt WHEN (1) = '@' FIELDS TERMINATED BY WHITESPACE TRAILING 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")22M#  -6Tips about Graphs4Connect 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 seriesx>pE>pE E7 Example: CPU Utilisation8!Example: Apache Servlet Times9"Longest http conversations:#Example: Tuxedo Service Time;$(tmadmin - PCLT - Connect Client Sessions"<% tmadmin - PCLT - Busy/Wait Users=&tmadmin - PQ - Queue Length>'&tmadmin - PSR - print server processes ?(3Relating different metrics produces new information@)Batch PerformanceSources of Metrics GraphOSources of Metrics (1)~Process Scheduler Request Table PSPRCSRQST need to archive this table maintain history in another table with on DELETE trigger6 T TQGraphical AnalysisPSources 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~#0% #0% ,`VRTop AE Statements AE PC % Cum % % Cum % Stmt Execute SQL SQL PC SQL SQL Total Total Rank 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 &  P1goVC,Oracle SQL*Trace & TKPROFEnable 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 0 Execute 36 55.09 86.80 0 2973787 3 1 Fetch 0 0.00 0.00 0 0 0 0 ------- ------ -------- ---------- ---------- ---------- ---------- ---------- total 72 55.11 86.81 0 2973787 3 1tA!&!8A!&!7   Triggers  *Process Scheduler Status Change On-Connect  MEnable Trace Archiving data during purge routines Altering session parametersM o;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'))      cp<On-Connect Triggers  ccreate or replace trigger sysadm.psqrysrv_session_trigger after logon on sysadm.schema declare l_program VARCHAR(64); begin SELECT program INTO l_program FROM v$session WHERE sid IN(SELECT sid FROM v$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); ...ddb  O  q=For example& psys.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','psqrysrv_session_trigger fired');  $ %  3' ]Further sources of Information8PSFT Customer Connection Red Papers 8.4 PIA, Power Users$$$TAphorismThe problems change from release to release, but the methods by which they are investigated remain the same. 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BB ?D 3 @@@i+G ] BB @D 3 @@@i+ G ] BB AD 3 @@@i+G ] BB BD 3 @@@i+G ] BB CD 3 @@@i+&G '] BB DD 3 UUUi+C8 9 B ED 3 Y1 G   FD  `DNf @1))?  t"Java Servlet (presentation logic)6# GD  `N @1))?@ 0 z.Tuxedo Application Server (application logic)0/ HD HdO1))?  #DBMS (application data & meta-data0$ ID  `O2 @1))?0   9SQL JD  `P2 @1))? @   DTuxedo Message KD  `DQ2 @1))?p   d http / https  E OD  R 3GHrfjJf11?P`,$D  0 KOracle SQL*TraceH D 0޽h ?OD nnnfE   0(  x  c $   x  c $D0  H  0޽h ? nnnfE   0<$(  <r < S    r < S d@`  H < 0޽h ? ___f3f'  ) ''@TV5&(  x  c $   F     T    # i @@   # B]CZDEFi+WZ]ZW @`  BB  3 @@@i+  N  S i+  BB  3 UUUi+ z BB  B 3 UUUi+{ | B   3  e BB   3 @@@i+ } BB   3 @@@i+} ~d BB  B 3 @@@i+e }f BB  3 @@@i+ d N  S qqqi+ z B  3  h BB  3 z\Zi+ X BB  3 z\Zi+` a BB B 3 z\Zi+ _ BB  3 z\Zi+ B  3 & - B  3 & - B  3 & - B  3 & - B  3 & - B  3 & - B  3 & - B  3 & - B  3 & - B  3 & -% B  3 &% -, B   3 &, -4 B ! 3 &4 -; B " 3 &; -C B # 3 &C -J B $ 3 &J -R B % 3 &R -Y B & 3 &Y -` B ' 3 &` -h B ( 3 &h -o B ) 3 &o -w B * 3 &w -~ B + 3 &~ - B , 3 & - B - 3 & - B . 3 & - B / 3 & - H 0 C i+) * BB 1 3 qqqi+& % BB 2 3 qqqi+& ' N 3 S qqqi+? # BB 4 3 i+<   5 # BCDEFqqqqqqi+ @`8  H2 6 C i+  # N2 7 S @@@i+, = B 8 3 R) h@ BB 9B 3 @@@i+RG gH BB : 3 @@@i+G }H BB ; 3 @@@i+< =] BB < 3 @@@i+ d BB = 3 @@@i+4 5] N2 > S @@@i+N% ^. BB ? 3 @@@i+G ] BB @ 3 @@@i+ G ] BB A 3 @@@i+G ] BB B 3 @@@i+G ] BB C 3 @@@i+&G '] BB D 3 UUUi+C8 9 B E 3 Y1 G   F  `f @1))?  t"Java Servlet (presentation logic)6# G  ` @1))?@ 0 z.Tuxedo Application Server (application logic)0/ H H1))?  #DBMS (application data & meta-data0$ I  `$2 @1))?0   9SQL J  `2 @1))? @   DTuxedo Message K  `2 @1))?p   d http / https  O L  d 3G(HjJf11?[1,$ 0 OWebserver Access LogQ M  $ 3G%%HojJf11?P,$ 0 QProxy Server Access LogO N   3GHjJf11?P ,$ 0 OTuxedo Service TraceK O   3GHrfjJf11?P`,$ 0 KOracle SQL*Traces P  d 3GDTHjJf11?P@L ,$ 0 sTuxedo tmadmin scriptb S s ZGPHmI)?~  ,$D  0b T s ZG HI#)?~  ,$D  0b U s ZG H-IPx)?  ,$D  0b V s ZG7 H^\I`&)? K ,$D  0H  0޽h ?LMNOPLMSNLTONU NPV nnnfE   `(  l  C    l  C 0  H  0޽h ? nnnfE   ( o l  C İ   l  C $0  H  0޽h ? ___f3f   0( @` x  c $   x  c $0  H  0޽h ? nnnfE  x(  x  c $   X  0A?PppH  0޽h ? nnnfE  x( ~2}2 x  c $ij   X  0A?PRH  0޽h ? nnnfE  x (   x   c $$   X   0A?PpH   0޽h ? nnnfE  x(  x  c $   X  0A?PP H  0޽h ? nnnfE  x(  x  c $D   X  0A?UtH  0޽h ? nnnfE  x ( P. x  c $   X  0A?P@`QH  0޽h ? nnnfE  x0 ( S  x   c $   X   0A?PQH   0޽h ? nnnfE  x@$(  $x $ c $d   X $ 0A?PPH $ 0޽h ? nnnfE  xP((  88X (x ( c $Ķ   X ( 0A ?P38H ( 0޽h ? nnnfE   p00(  0x 0 c $   x 0 c $0  H 0 0޽h ? nnnfE  9 0(  x  c $   x  c $0  H  0޽h ? nnnfE : x(  x  c $Ĺ   X  0A ?P H  0޽h ? nnnfE   (  l  C    l  C 0  H  0޽h ? ___f3f  ; 0(  x  c $D   x  c $<``  H  0޽h ? nnnfE   H0(  Hx H c $<   x H c $$<0  H H 0޽h ? nnnfER  K  |( '0 |l | C <   r | S D< 0  l | C <p 0  H | 0޽h ? ___f3f  J @(  l  C d<   l  C <0  H  0޽h ? ___f3f  I `$(  r  S <   r  S D<0  H  0޽h ? ___f3f  H (   l  C $<   l  C <0  H  0޽h ? ___f3f  G L( ^ Ll L C $<   l L C <0  H L 0޽h ? ___f3f  > TL(  x  c $Ts   x  c $s0    C PA 8C:\User\graphics\jlbook.jpg,$ 0H  0޽h ? nnnfEd +  p$( P $l $ C r  < H $ 0޽h ? nnnfE  , `,0( 8,LTXTP ,x , c $  < x , c $q0 < H , 0޽h ? nnnfE@ < Pn(    3 r4gֳgֳ ? ` <   # lgֳgֳ ? < b2  c gֳgֳvd @?UQl$ 000 : 2 b2  c Tgֳgֳvd @?@UQ< l$ 000 : 2 b2  c gֳgֳvd @? UQ l$ 0 00 : 2 b2  c gֳgֳvd @?@ TP< l$ 0!00 : 2 B  s *޽h ? f3f3f 0 ((  ^  S ;    c $Tv    H  0޽h ? ̙33 0 \T,(  ,^ , S ;  N , c $4x   Independent consultant specialising in the performance tuning of PeopleSoft systems. I ve spent 13 years working with Oracle databases, the last 6 of which have spent working with PeopleSoft. If you ve been to these gatherings you will have seen me before Nowadays I am an independent consultant, but I still specialise in performance tuning ZH , 0޽h ? ̙33   0  x h (  h^ h S P  r  h c $+     In the beginning PeopleSoft was a two-tier system. A windows client interacted directly with the database. Today on the application designer and data mover still do that. In 1997 PeopleTools 7.0 introduced a full three-tier windows client that used the Tuxedo Application server. In 2000 PeopleTools 8.x appeared with a fully internet client. The database still stores the application and the application server is responsible for extracting the relevant application objects from the database as well as the application data. That hans t really changed. The application server bundles the component (the thing we used to call the panel group) will all the html, JavaScript fragments and graphics and send that to the servlet. The servlet, which is closely bound with the webserver unpacks that message, sends the page to the browser and rest of those objects are loaded by the browser from the webserver. The Servlet also holds session information for each connected user. There is a lot of work going on at different tiers in the chain. Depending on circumstances different components can contribute differently to response times. Our objective is to measure all of this. (see www.go-faster.co.uk for detailed PIA/Tuxedo architectural overview) H h 0޽h ? ̙33  0 C;p(  p^ p S P  5 p c $   There are lots of things to measure in the PeopleTools 8. Each tier in the diagram on the pervious slide produces its own set of metrics. The key is to relate different sets. In the light of what I have just said about perception, the most important place to measure is as close to the client as possible. That can be difficult. There is 3rd party software that will put agents on the clients. Page detailer is a part of the Websphere suite. One technique that I have used is to introduce a proxy server. Most webservers can be configured as proxy servers. So I put a proxy server physically close to the clients that I want to measure. Similarly the web server can also record all the same requests but now their duration will be the time at the webserver. This time that the request took to actually process. The difference in these duration is the time lost across the network. , N qH p 0޽h ? ̙33  0 px(  x^ x S P  ~ x c $<   The access log will record all the requests including their duration as measured at the proxy server. There is a standard format for webserver logs. WebLogic conforms to this standard, Apache does not. There are a number of things that you can records.H x 0޽h ? ̙33 0 F(  ^  S P  <  c $<  < <(But apache is no longer supported in 8.4H  0޽h ? ̙33 0 ZR(  ^  S P  <L  c $<  < Pipe symbols have been used as separators because it s very unlikely to appear elsewhere in the trace.H  0޽h ? ̙33\ 0 0(  ^  S P  <  c $4<  < So to summarise the enhanced access log will tell you about activity at the web or proxy server. Everything you need to know about a request.H  0޽h ? ̙33 0 G?(  ^  S P  9  c $t.   The Tuxedo service trace will log every service that goes via the application server. There is almost, but not quite, a one-to-one relationship between web server and app server requests. The difference between web server service time and app server service time is the time spent by the servlet on the JVM. Using SQL trace it is possible to aggregate SQL time over a period. You can determine the proportion of SQL time in Tuxedo time. H  0޽h ? ̙33 0 R(  ^  S P    c $-   H4The trace is a text file,which is easy to work with.H  0޽h ? ̙33 0  =(  ^  S P    c $t0   3The fields in the service traceH  0޽h ? ̙33 0 ((  ^  S P    c $I    H  0޽h ? ̙33 0 ((  ^  S P    c $J    H  0޽h ? ̙33 0 ((  ^  S P    c $L    H  0޽h ? ̙33 0 ((  ^  S P    c $$M    H  0޽h ? ̙33 0  ((  ^  S P    c $    H  0޽h ? ̙33u 0 5-p(  ^  S P  '  c $d   My tactic for dealing with almost any log file is the same. Load it into a database, manipulate the data with SQL - you may have to match entries in different logsH  0޽h ? ̙33 0 ((  ^  S P    c $    H  0޽h ? ̙33  0 ((  ^  S P    c $d    H  0޽h ? ̙33# 0 ((  ^  S P    c $    H  0޽h ? ̙33( 0 `,((  ,^ , S P   , c $$    H , 0޽h ? ̙33) 0 4((  4^ 4 S P   4 c $D    H 4 0޽h ? ̙33, 0 L((  L^ L S P   L c $<    H L 0޽h ? ̙33 1 0 F >  (  ^  S P  8   c $z   z I have realised that over the years that I have collected a number of catchphrases and quotes. When you are tackling performance problems you need to keep an eye on what you are trying to achieve. Often a user will report that the system is slow, so you have measure what the use is experiencing The availability and response time that a system produces are sum of all the components in the chain. Database - Application Server - Network - PC It takes time for requests to be transmitted over a network, through application server, be processed by the database and returned. There is a certain amount of processing on the client and that takes time too. If any component fails then the system fails. If you go to a cash point and you cant draw money, you don t care whether the central mainframe is down, or the network, or the cash point itself is down, or even if it have run out of money. The bottom line is that the system is not available, and you don t get your money. The users can only observe one thing. Their own PC One of the problems with performance is that it can all be a bit touchy feely. Users will only ever say two things: 1) The system is slow 2) The system is OK You need some sort of metric. Performance Level Agreements as a part of the SLA. The only thing that means anything to a user is time. How long do they spend waiting for the hourglass? Perhaps it also means that there is another component of your system to tune - your users OiH  0޽h ? ̙33#3 0 0s(  ^  S P    c ${   iUThere is only one currency here. Time Where are you loosing how much of your time? H  0޽h ? ̙334 0 JBP(  ^  S P  <  c $!   In order to improve the performance of a system (and by system I mean anything not just a computer system) you have to understand how it work. Answering that questions is not trivial. Because when you do the analysis properly and you may get an unexpected answer. The answer might be counter-intuitive, it may be so peculiar that you might have rejected it out of hand. This is experimental science $H  0޽h ? ̙335 0 x(  R  3 Dx  ~  C w    H  0޽h ? ̙33(7 0 px(  ^  S H r    c $T#   nThe methodology required to address performance issues is one of experimental science. Test your theory with an experiment. I ve had a presentation will all this Sherlock Holmes stuff for several years. And I put some of it into this presentation a long time ago now. In October 2002 the Royal Society of Chemistry (who are a serious bunch of scientists) very publicly awarded a gold medal to Holmes (and not his creator Conan-Doyle) because of his contributions to science. Why? Obviously it was a publicity stunt. Done because the character of Holmes is a positive scientific role model. The myth embodies a rigorous, logical, scientific techniques for investigation. So there is a serious point here, and I am not simply padding out this presentation. &X $WH  0޽h ? ̙33 0 x(  R  3 Dx  ~  C 4    H  0޽h ? ̙338 0 g_P(  ^  S P  Y  c $ԋ   So now you can use pairs of measures to measure the segment between the points of measurement The difference between proxy server and web server is network time The difference between Webserver log and Tuxedo Log is servlet time + tuxedo queue time Tuxedo queuing can be estimated from Tuxedo tmadmin scripts. An average queue of 2 requests on a queue suggests a queuing time of twice the average service time Oracle trace can only be used on a statistical basis. What proportion of Tuxedo Service time is SQL Important tip - if these traces are coming off difference servers get them time synchronised at least with each other if not a proper time source. %gH  0޽h ? ̙339 0 C;P( KgT( ^  S P  5  c $   So now you can use pairs of measures to measure the segment between the points of measurement The difference between proxy server and web server is network time The difference between Webserver log and Tuxedo Log is servlet time + tuxedo queue time Tuxedo queuing can be estimated from Tuxedo tmadmin scripts. An average queue of 2 requests on a queue suggests a queuing time of twice the average service time Oracle trace can only be used on a statistical basis. What proportion of Tuxedo Service time is SQL Important tip - if these traces are coming off difference servers get them time synchronised at least with each other if not a proper time source. %gH  0޽h ? ̙33@ 0 (((  (^ ( S P   ( c $<    H ( 0޽h ? ̙33A 0 0c(  0^ 0 S P   0 c $   YEI will leave you with a final piece of Sherlock Holmes and my thanks.H 0 0޽h ? ̙33D 0 Hh(  H^ H S P   H c $4u   ^JIn this presentation I am going to discuss what I mean by  Performance Tuning , and what I believe is the correct to approach it. Then I am going to get into some technical detail. I will handle on-line and batch processing separately. I will talk about the kind of performance metrics that you need to watch in order to work out what has to be tuned, Then I will round off with a description of what was achieved at the various places that I have worked.. The technical stuff is not just theory - it has been done for real - you can do it too.H H 0޽h ? ̙33I 0 xQ(  x^ x S P  < x c $t<  < GPeopleTools 8.4 has weblogic server 6.1. The configuration file is a lttle different. It is now an XML file. You can edit it, but there is now a much improved console to control it. Problem with file rotation on WL - seems to loose the extended format., )H x 0޽h ? ̙33 J 0 Z(  ^  S P  <  c $<  < P<And this is what a sample trace looks like Look at the first two lines. These look like comments, but they actually determine the format of the access log. You create this two lines yourself as a seed logfile, and when the server restarts it reads these, and the format of the logfile that follows is determined.H  0޽h ? ̙330K 0 (  ^  S P    c $T0   vbSo that the service trace can be controlled easily I usually add a new variable in the trace file.H  0޽h ? ̙33BL 0 (  ^  S P    c $2   .Now customise the ubx fileto use the new variable. LOGDIR is a delivery variable that is the location of the LOGS directory. Thus the stderr logs go to same directory as the other log files. I generally make the name of the stderr file the same as the queue so I can easily distinguish between queues> kSFH  0޽h ? ̙33M 0 f^(  ^  S P  X  c $+   When you configure a domain the variable names are fully resolved in .ubb. So it s a good place to check that the domain is correctly reconfigured. Recently had problem with 8.16.02 PSQRYSRV on AIX - can start with -rFH  0޽h ? ̙33#N 0 @s(  ^  S P    c $1   iUTXPRT utility shipped by BEA with tuxedo to analyse the trace - gives hourly figures.H  0޽h ? ̙33O 0 ((  ^  S P    c $d    H  0޽h ? ̙33Q 0 ((  ^  S P    c $$    H  0޽h ? ̙33R 0 ((  ^  S P    c $d<    H  0޽h ? ̙33S 0 ((  ^  S ;    c $t    H  0޽h ? ̙33T 0 ((  ^  S P    c $D<    H  0޽h ? ̙33NV 0 (  X  C Dx    S T&   There s a lot of other technology - how do you know it s the database.H  0޽h ? ̙33X 0 T(  ^  S P    c $$   J6So we are looking for ways to measure time I am going to take the on-line side of PeopleSoft, the PIA first. You are going to see that V8 provides many different metrics, which tell you different things about different parts of the technology, so I will start with a very high-level overview of the technology.H  0޽h ? ̙33 0 (  R  3 Dx    C 4<   &Note timestamp is the time when the service has finished, because you only know the duration when a request finishes. Not normally an issue unless you are trying to match web requests to proxy requests, or web requests to tuxedo servers. H  0޽h ? ̙33Z 0 C;`8(  8^ 8 S P  5 8 c $,   So now you can use pairs of measures to measure the segment between the points of measurement The difference between proxy server and web server is network time The difference between Webserver log and Tuxedo Log is servlet time + tuxedo queue time Tuxedo queuing can be estimated from Tuxedo tmadmin scripts. An average queue of 2 requests on a queue suggests a queuing time of twice the average service time Oracle trace can only be used on a statistical basis. What proportion of Tuxedo Service time is SQL Important tip - if these traces are coming off difference servers get them time synchronised at least with each other if not a proper time source. %gH 8 0޽h ? ̙33[ 0 C;`@(  @^ @ S P  5 @ c $G   So now you can use pairs of measures to measure the segment between the points of measurement The difference between proxy server and web server is network time The difference between Webserver log and Tuxedo Log is servlet time + tuxedo queue time Tuxedo queuing can be estimated from Tuxedo tmadmin scripts. An average queue of 2 requests on a queue suggests a queuing time of twice the average service time Oracle trace can only be used on a statistical basis. What proportion of Tuxedo Service time is SQL Important tip - if these traces are coming off difference servers get them time synchronised at least with each other if not a proper time source. %gH @ 0޽h ? ̙33\ 0 C;H(  H^ H S P  5 H c $dR   So now you can use pairs of measures to measure the segment between the points of measurement The difference between proxy server and web server is network time The difference between Webserver log and Tuxedo Log is servlet time + tuxedo queue time Tuxedo queuing can be estimated from Tuxedo tmadmin scripts. An average queue of 2 requests on a queue suggests a queuing time of twice the average service time Oracle trace can only be used on a statistical basis. 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Aphorism Aphorism Aphorism AphorismPIA (On-Line) PerformanceIt isnt always the database!!PeopleSoft Internet ArchitectureSources of Metrics (1)Sources of Metrics (2)HintSources of MetricsWeb/Proxy Access LogWeb/Proxy Access LogHow to Enable WebLogic TraceSample WebLogic Access LogApache Access LogSample Apache Access Log"What does the access log tell us?Download BandwidthSources of MetricsBEA/Tuxedo Service TraceEdit psappsrv.cfgEdit psappsrv.ubxResultant psappsrv.ubbSample Tuxedo Service TraceTuxedo Service TraceTxrpt UtilitySources of MetricsBEA/Tuxedo TMADMIN UtilityPQPSRPCLTSources of MetricsOracle SQL TraceSmall Application ServersSources of MetricsGraphical AnalysisSample SQL*Loader FileTips about GraphsExample: CPU UtilisationExample: Apache Servlet TimesLongest http conversationsExample: Tuxedo Service Time)tmadmin - PCLT - Connect Client Sessions!tmadmin - PCLT - Busy/Wait Userstmadmin - PQ - Queue Length'tmadmin - PSR - print server processes4Relating different metrics produces new informationBatch PerformanceSources of Metrics (1)Graphical AnalysisSources of Metrics(2)Top AE StatementsOracle SQL*Trace & TKPROF TriggersProcess SchedulerOn-Connect Triggers For exampleFurther sources of Information Aphorism Questions? AphorismFPerformance Metrics: What to Measure in the PeopleSoft 8 Environment  Fonts UsedDesign Template Slide TitlesC(RZ _PID_GUID _PID_HLINKSAN{ADDE6536-DA92-4740-94D2-DF4EDEF98DB9}A,0257,2,Custom Topic A258,3,Custom Topic B259,4,Vital Statistics260,5,Favorite Links to Visit257,2,Custom Topic A258,3,Custom Topic B259,4,Vital Statistics260,5,Favorite Links to VisitRoot EntrydO)*9Pictures`Current UserGSummaryInformation(Y      !"#$%&'()*+,-/012345F%_㡟 AdministratorAdministrator  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~      !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~      !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~      !"#$%&'()*+,-/012345789:;<=FRoot EntrydO)Pictures`Current User6SummaryInformation(YPowerPoint Document(şDocumentSummaryInformation8.