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IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008	Chapter 6 - Web Server and WebSphere	116

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Intel 7xx Servers, 170 Servers, AS/400 RISC Server manual PartnerWorld for Developers Webfacing website

Contents

January/April/October Toolcat Mkttools GET AS4ADV36 Package Table of Contents Performance Observations and Tips 107117 System Application Server Instance 11910.2 DB2 for i5/OS access with Odbc 155 157158 11.1Supported Backup Device Rates 243 196199 200IPL Performance 17.7 File Level Backup Performance 292 19.6 User Pool Faulting Guidelines 310 19.7284 285Switchable IASP’s 327 Geographic Mirroring 329 334335 What the Estimator is Not 335Special Notices Disclaimer NoticeIpds Purpose of this Document Introduction Page Overview Interactive Indicators and MetricsISeries and AS/400 Risc Server Model Performance Behavior Disclaimer and Remaining Sections 3 V5R3Server Model Behavior V4R5 V5R2 4 V5R2 and V5R1Page 100 Server Model Differences Custom Server Model Model 7xx and 9/98 Model Performance Highlights of Model 7xx ServersPerformance Highlights of Model 170 Servers Performance Highlights of Custom Server Models Additional Server ConsiderationsInteractive Utilization ExampleServer Dynamic Tuning SDT Page Affects of Server Dynamic Tuning Interactive/Server characteristics in the real world Managing Interactive CapacityIs Interactive really Interactive? Page Migration from Traditional Models Interval end time hour and minute Number of interactive transactions per hourUpgrade Considerations for Interactive Capacity 13.2 V5R1 DSD Performance Behavior Interactive Processing Domino-Complementary ProcessingV5R1 Non-Domino Processing Logical Partitioning on a Dedicated Server Running Linux on a Dedicated ServerPage Batch Performance Effect of CPU Speed on BatchEffect of Dasd Type on Batch Batch Workload DescriptionTuning Parameters for Batch Expert CacheJob Priority Dynamic Priority SchedulingPage I5/OS V6R1 SQE Query Coverage DB2 for i5/OS PerformanceNew for i5/OS V6R1 Query Attribute POWER5 Processor POWER6 Processor DB2 i5/OS V5R4 Highlights Records Inserted/SelectedI5/OS V5R4 SQE Query Coverage Common table expressions Deletes Derived tables I5/OS V5R3 HighlightsI5/OS V5R3 SQE Query Coverage Like/Substring predicates DB2 Multisystem LOB columns I5/OS V5R3 SQE Performance EnhancementsPartitioned Table Support SQE Optimizer V5R2 Highlights Introduction of the SQL Query EngineMaterialized Query Table Support Fast Delete Support SQE Query Engine SQE Database StatisticsStatistic Usage Example Encoded Vector Indices EVIs IndexingSQE for V5R2 Summary DB2 Symmetric Multiprocessing feature Introduction DB2 for i5/OS Memory Sharing ConsiderationsDecision Support Queries SMP Performance SummaryRemote Journal Function Journaling and Commitment ControlJournaling System-Managed Access Path Protection Smapp SmappDB2 Multisystem for i5/OS Commitment ControlCopyright IBM Corp Referential Integrity TriggersVariable Length Fields DescriptionPerformance Expectations Comparison to Normal Inserts Reuse Deleted Record SpaceDescription of Function Performance References for DB2 Copyright IBM Corp Communications Performance System i Ethernet Solutions CCIN3Software Communication Performance Test EnvironmentHardware Large data transfer FTP Communication and Storage observationsDasd Performance TCP/IP non-secure performance Streaming PerformanceRR & Acrr Performance TCP/IP Secure PerformanceSSL Performance 1167 565.4 530.0 479.6 462.1 202.2249.7 53.4 48.0 31.3 27.4 478.4 55.7 53.3 36.9 31.9SSL Relative Performance VPN PerformanceVPN Relative Performance Performance Observations and Tips27.5 10.9 15.4 18.7 88.8Page APPC, ICF, CPI-C, and Anynet Page Speed = 10Mbps = 100Mbps HPR and Enterprise extender considerationsTest Type Hprip Link Hprip Link Speed AnyNet Additional Information For network information select NetworkingWeb Server and WebSphere Performance Http Server powered by Apache Relative Performance Metrics Http Server powered by Apache for i5/OS V5R4 Relative Capacity for CGI Http Server powered by Apache for i5/OS Page Page Page Page System Configuration PHP Zend Core forZend Core for Database and Workload DescriptionDatabase Access OS / DBDatabase Persistent versus Non-Persistent Connections Database Isolation Levels Zend PlatformPHP System Sizing WebSphere Application Server What’s new in V6R1?Thi ShoTuning changes in V6R1 Using direct map native JdbcUsing ‘threadUsed=false custom property toolbox Jdbc Use of unix sockets toolbox JdbcPage Topology of the Trade Application Page WebSphere Application Server Trade3 Measurement Results Trade Capacity ResultsTrade Scalability Results Trade 6 PrimitivesDescription of Trade primitives in Figure WebSphere Trade 3 Primitives Accelerator for System Trade Jdbc Response Time 1 User Time seconds Page WebSphere Application Server V51 Express Moderate, and one complex. See .4, for IBM WebFacingWebFaced applications, one simple, one Version 5.0 of Webfacing More in line with the other two machinesMany 5250 applications have been implemented With best performance techniques, such asTuning the Record Definition Cache Display File Record I/O ProcessingCache Management Definition Cache Content Viewer Cache Size EffectDefinitions would be retained in the cache with few cache Misses for not commonly used recordsCache Viewer Button operations Button Operation Cache Management Record Definition LoaderRecord Definition Loader Button operations Operation CompressionEnabling Compression in IBM Http Server powered by Apache Webfacing CompressionAdditional Resources PartnerWorld for Developers Webfacing website Hats Customization WebSphere Host Access Transformation Services HatsWhat’s new with V5R4 and Hats Hats Customization CPW/User System Application Server Instance IBM Systems Workload Estimator for HatsPage WebSphere Portal WebSphere CommerceConnect for iSeries WebSphere Commerce Payments Performance Tips and TechniquesConnect for iSeries Connector Types Performance Observations/TipsPage What’s new in V6R1 Java PerformanceIntroduction IBM Technology for Java 32-bit and 64-bit Native Code Garbage CollectionClassic VM 64-bit JIT CompilerPage Garbage Collection Bytecode Verification Determining Which JVM to Use Functional ConsiderationsPerformance Considerations Capacity Planning General GuidelinesJava Performance Tips and Techniques I5/OS Specific Java Tips and Techniques Classic VM-specific TipsConsider the special property os400.jit.mmi.threshold Java Language Performance TipsMinimize synchronized methods Instead, the above procedure should be written as Java i5/OS Database Access TipsPool Database Connections Resources System i Cryptographic Solutions IBM Software SolutionsIBM Hardware Solutions Cryptography PerformanceCryptography Performance Test Environment CSP API SetsSoftware Cryptographic API Performance Measurement ResultsHardware Cryptographic API Performance Bytes/SecondCipher Encrypt Performance Encryption Threads4764 Transactions/second Bytes/secondCryptography Observations, Tips and Recommendations CCA CSPSupported number of 4764 Cryptographic Coprocessors ISeries NetServer File Serving Performance ISeries NetServer File Serving PerformanceResponse Time Conclusion/ExplanationsPage DB2 for i5/OS Jdbc and Odbc Performance 10.1 DB2 for i5/OS access with JdbcJdbc Performance Tuning Tips References for Jdbc 10.2 DB2 for i5/OS access with Odbc Odbc Performance Settings Page References for Odbc Microsoft Odbc webpageDomino on Domino Workload Descriptions Mail and Calendaring Users MCUDomino Web Access formerly known as iNotes Web Access DominoDomino Domain Monitor Domino Web Access client improvements with Domino Additional memory was added for this testResponse Time and Megahertz relationship Domino Edition Collaboration Edition and Domino Edition offeringsCollaboration Edition Performance Tips / Techniques Page Page Domino Web Access Domino Subsystem TuningPerformance Monitoring Statistics Main Storage OptionsMinimize Thousands Sizing Domino on System V5R3 Main Storage Options Response TimesLpar and Partial Processor Considerations Performance Data Collection ToolsSystem i NotesBench Audits and Benchmarks WebSphere MQ for iSeries Performance Improvements for WebSphere MQ V5.3 CSD6Queue Manager Start Following an Abnormal End Checkpoint Following a Journal Receiver Roll-overTest Description and Results Conclusions, Recommendations and TipsOther Sources of Information Basic Requirements -- Where Linux Runs Linux on iSeries PerformanceSummary Key IdeasLinux on iSeries Technical Overview Linux on iSeries ArchitectureLinux on iSeries Run-time Support Basic Configuration and Performance Questions General Performance Information and Results Computational Performance -- C-based codeWeb Serving Performance Number Processors PartitionComputational Performance -- Java TCP/IP Function Megabit Ethernet LAN Virtual LAN Network OperationsGcc and High Optimization gcc compiler option -O3 Gcc Compiler, VersionValue of Virtual LAN and Virtual Disk Virtual Disk13.7 DB2 UDB for Linux on iSeries Linux on iSeries and IBM eServer Workload Estimator Top Tips for Linux on iSeries PerformancePage Page Page Dasd Performance Internal Native AttachmentDirect Attach Native Hardware Characteristics Devices & Controllers14.1.2 iV5R2 Direct Attach Dasd Intensive Workload Performance ComparisonIntensive Workload 14.1.3.2 571B IOP vs Iopless 10 15K 35GB Dasd 14.1.3 571B14.1.3.1 571B RAID5 vs RAID6 10 15K 35GB Dasd 14.1.4 571B, 5709, 573D, 5703, 2780 IOA Comparison Chart Dasd14.1.4.4 14.1.5.1 Comparing 571E/574F and 571F/575B IOP and IOPLess 14.1.6.21000 2000 3000 4000 Ops/Sec 14.1.7.4 Performance Limits on the 571F/575B 14.1.8.1Page 14.1.9.2 14.1.9.1 Direct Attach 571E/574F and 571F/575B Observations New in iV5R4M5 14.2.1 9406-MMA CEC vs 9406-570 CEC Dasd 100 200 300 400 500 600 Ops/SecRAID Hot Spare 14.2.3 12X Loop Testing New in iV6R1M0 Encrypted ASP Non Encrypted ASP vs Encrypted ASPNon Encrypted ASP vs Encrypted ASP 14.3.2 57B8/57B7 IOA 100 350 600 850 1100 1350 1600 1850POWER6 520 57B8/57B7 6 RAID5 Dasd in CEC 14.3.3 572A IOA Page SAN Storage Area Network External 14.5 iV6R1M0 -- Vios and IVM Considerations General Vios Considerations Generic ConceptsGeneric Configuration Concepts Page Page Chdev -dev hdisk03 -attr pv=yes will assign a Pvid to hdisk3 Page Vios and JS12 Express and JS22 Express Considerations 001 10000 20000 30000 40000 50000 60000 Vios CPU Vios Average Dasd Response Time Seconds BladeCenter S and JS12 Express Page Page System Workload Response Time Seconds IBM i operating system 5.4 Virtual Scsi Performance Page Introduction Virtual Scsi Performance Examples Native vs. Virtual Performance Virtual Scsi Bandwidth-Multiple Network Storage SpacesNwsd Read Scaling Virtual Scsi Bandwidth-Disk Scaling Sizing when using Dedicated Processors SizingCPU milliseconds to process virtual Scsi I/O transaction Sizing when using Micro-Partitioning Sizing memory Disk 1GB Sequential ReadAIX Virtual IO Client Performance Guide Save/Restore Performance Supported Backup Device RatesSave Command Parameters that Affect Performance Use Optimum Block Size UseoptblkData Compression Dtacpr Data Compaction CompactWorkloads Database File related WorkloadsUser Mix User Mix 3GB contains 12,300 objectsComparing Performance Data Ultra High Performing Backup Devices Lower Performing Backup DevicesMedium & High Performing Backup Devices Use of Multiple Backup Devices Parallel and Concurrent Library Measurements Save and Restore Rates Large File ConcurrentSave and Restore Rates Large File ParallelUser Mix Concurrent Runs User Mix Concurrent450 440 430 420 Number of Processors Affect PerformanceDasd and Backup Devices Sharing a Tower 100200 Virtual TapeData To Save Hours 500 Parallel Virtual Tapes1500 1000 Concurrent Virtual TapesSave and Restore Scaling using a Virtual Tape Drive Large File Virtual Tape Scaling Save Write to Virtual tapeLarge File Save User Mix Saves High-End Tape Placement on System PCI-X ™ In a 5094/5294 tower use slot C08 or C09700 250 15.19 5XX Tape Device Rates SLR60Measurements in GB/HR all 8 Dasd in the system ASP Source File 1GB 15.21 5XX DVD RAM and Optical Library Software Compression High15.23 9406-MMA DVD RAM ASP15.24 9406-MMA 576B IOPLess IOA 1GBWhat’s New and Tips on Performance What’s New IV6R1M0 March IV5R4M5 JulyIV5R4 January AugustIPL Test Description IPL PerformanceIPL Performance Considerations Active Database Software Configuration16.3 9406-MMA System Hardware Information 1 iV5R4M5 Normal IPL Power-On Cold Start 16.4 9406-MMA IPL Performance Measurements Normal16.5 9406-MMA IPL Performance Measurements Abnormal 1 iV5R4M5 Abnormal IPL Partition MSDMSD Affects on IPL Performance Measurements 16.7.1 5XX Small system Hardware Configuration 16.7.2 5XX Large system Hardware Configuration16.7 5XX System Hardware Information Database1 Normal IPL Power-On Cold Start 16.8 5XX IPL Performance Measurements Normal16.9 5XX IPL Performance Measurements Abnormal Measurement units are in hours, minutes and seconds16.10 5XX IOP vs IOPLess effects on IPL Performance Normal IPL TipsIntegrated xSeries Adapter IXA Integrated BladeCenter and System x PerformanceV5R4 iSCSI Host Bus Adapter iSCSI HBA 17.2.1 IXS/IXA Disk I/O Operations Effects of Windows and Linux loads on the host systemIntegrated xSeries Servers IXS Extended Write Operations ISCSI Disk I/O OperationsISCSI virtual I/O private memory pool Crtsbsd SBSDQGPL/QFPHIS POOLS1 10000Virtual Ethernet Connections 17.2.5 IXS/IXA IOP ResourceIXS and IXA attached servers ISCSI attached serversDisk I/O CPU Cost Machine Pool MBytes Base Pool Qfphis Private Pool TotalFurther notes about IXS/IXA Disk Operations CPW per 1k Disk OperationsDisk I/O Throughput ISCSI Target, IXA Capacity Comparison MB per SecondVirtual Ethernet CPU Cost and Capacities VE Capacity ComparisonsVE CPW Cost PP TCP Stream i5/OS to WindowsFile Level Backup Performance Windows CPU CostAdditional Sources of Information Flbu SAV / RST RatesMicrosoft Hardware Compatibility Test URL See Logical Partitioning Lpar V5R3 InformationV5R2 Additions General TipsConsiderations V5R1 AdditionsLpar Performance Considerations Performance on a 12-way systemPage Lpar Throughput Increase Lpar Measurements 5700 21 % Over a Standalone 12-way5920 26 % SAP Performance Information Miscellaneous Performance InformationTPC-C Commercial Performance SPECjbb2000 VolanoMarkDelay Cost Terminology Dynamic Priority SchedulingPriority Mapping to Delay Cost Curves Performance Testing Results Qdynptyscd = ‘1’ on Qdynptyscd = ‘0’Memory Tuning Using the Qpfradj System Value Main Storage Sizing GuidelinesAdditional Memory Tuning Techniques Large Memory Systems User Pool Faulting GuidelinesSetobjacc Set Object Access Interactive Batch19.7 AS/400 NetFinity Capacity Planning AS/400 NetFinity Software Inventory Performance Conclusions/Recommendations for NetFinity Adjusting Your Performance Tuning for Threads General Performance Tips and TechniquesHistory Coming ChangeProblem SolutionOptimization Levels General Performance Guidelines -- Effects of CompilationIn-lining Theory -- and Practice System Level Considerations Typical Storage CostsOrder1 Orderj Ordert OrderN Brief ExampleWhich is more important? Short but Important Tip about Data BaseFinal Thought About Memory and Competitiveness Hardware Multi-threading HMT HMT DescribedHMT Feature SMT Feature HMT and SMT Compared and ContrastedSome key similarities and differences are Models With/Without HMTPOWER6 520 Memory Considerations Aligning Floating Point Data on Power6 Page High Availability Switchable Resources Considerations Switchable IASP’sHigh Availability Performance Workload DescriptionWorkload Configuration System ConfigurationHardware Configuration Cabling MapSwitchover Tips Geographic MirroringWorkload Description Large System Configuration Hardware Configuration Cabling MapSwitchable Towers using Geographic Mirroring Geographic Mirroring MeasurementsSynchronization on an idle system Active StateGeographic Mirroring Tips IBM Systems Workload Estimator What the Estimator is Not Estimator AccessMerging PM for System i data into the Estimator Page Appendix A. CPW and CIW Descriptions Commercial Processing Workload CPWCPW Application Description Compute Intensive Workload CIW Page Page Starting Collection Services Performance Data Collection ServicesHow Collection Services works Batch Modeling Tool Bchmdl Page Page CPW values for the IBM Power Systems IBM i operating system V6R1 Additions OctoberV6R1 Additions April CPW values for the IBM Power 595 IBM i operating systemV6R1 Additions August Table C.3.1. CPW values for Power System Models V6R1 Additions JanuaryIBM System i using the POWER6 processor technology IBM System i using the POWER5 processor technologyV5R4 Additions July V5R4 Additions January/May/August 2006 and January/AprilModel Edition Accelerator V5R3 Additions May, July, August, October 2004, July IBM ~ i5 ServersValue ExpressCPU V5R2 Additions February, May, July ISeries Model 8xx Servers750 540Model 810 and 825 iSeries for Domino February V5R2 AdditionsModels share L2 cache between 2 processors Standard Models 8xx Servers10 V5R1 Additions Table C.9.2.1 Standard Models 8xx ServersModel 8xx Servers Table C.9.1.1 Model 8xx ServersModel 2xx Servers 10.3 V5R1 Dedicated Server for DominoTable C.10.2.1 Model 2xx Servers Table C.10.3 .1 Dedicated Servers for DominoActive Stand-by 840-2352 840-2353 840-2354 Capacity Upgrade on-demand ModelsCPW Values and Interactive Features for CUoD Models Table C.10.4.1.1 V5R1 Capacity Upgrade on-demand Models 16500Table C.11.1 Model 8xx Servers All new Condor models 11 V4R5 Additions11.1 AS/400e Model 8xx Servers Table C.11.3.1 Dedicated Server for Domino Dedicated Server for DominoTable C.11.2.1 Model 2xx Servers SB Models 12 V4R4 Additions12.1 AS/400e Model 7xx Servers Table C.11.4.1 SB ModelsModel 170 Servers Current 170 Servers Table C.12.2.1 Current Model 170 ServersAS/400e Dedicated Server for Domino Previous Model 170 Servers2407 2408 2409 120 Table C.12.2.2 Dedicated Server for Domino13 AS/400e Model Sxx Servers 14 AS/400e Custom Servers15 AS/400 Advanced Servers Table C.13.1 AS/400e ServersTable C.15.2 AS/400 Advanced Servers V3R7 16 AS/400e Custom Application Server Model SB1Table C.15.1 AS/400 Advanced Servers V4R1 and V4R2 17 AS/400 Models 4xx, 5xx and 6xx Systems Table C.16.1 AS/400e Custom Application Server Model SB1Table C.17.1 AS/400 Risc Systems Table C.17.2 AS/400e Systems18 AS/400 Cisc Model Capacities Table C.18.8 AS/400 Advanced Servers Cisc Table C.18.6 AS/400 Cisc Model 9406 SystemsTable C.18.7 AS/400 Advanced Systems Cisc