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Intel 170 Servers, AS/400 RISC Server, 7xx Servers manual Resources

Models: 7xx Servers 170 Servers AS/400 RISC Server

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Resources

The i5/OS Java and WebSphere performance team maintains a list of performance-related documents at http://www.ibm.com/systems/i/solutions/perfmgmt/webjtune.html.

The Java Diagnostics Guide provides detailed information on performance tuning and analysis when using IBM Technology for Java. Most of the document applies to all platforms using IBM’s Java VM; in addition, one chapter is written specifically for i5/OS information. The Diagnostics Guide is available at http://www.ibm.com/developerworks/java/jdk/diagnosis/.

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008	Chapter 7 - Java Performance	141

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Intel 170 Servers, AS/400 RISC Server, 7xx Servers manual Resources

Contents

January/April/October Toolcat Mkttools GET AS4ADV36 Package Table of Contents 107 Performance Observations and Tips117 System Application Server Instance 119157 10.2 DB2 for i5/OS access with Odbc 155158 11.1196 Supported Backup Device Rates 243199 200IPL Performance 19.6 User Pool Faulting Guidelines 310 19.7 17.7 File Level Backup Performance 292284 285334 Switchable IASP’s 327 Geographic Mirroring 329335 What the Estimator is Not 335Disclaimer Notice Special NoticesIpds Purpose of this Document Introduction Page Interactive Indicators and Metrics ISeries and AS/400 Risc Server Model Performance BehaviorOverview 3 V5R3 Disclaimer and Remaining Sections4 V5R2 and V5R1 Server Model Behavior V4R5 V5R2Page 100 Server Model Differences Custom Server Model Performance Highlights of Model 7xx Servers Model 7xx and 9/98 ModelPerformance Highlights of Model 170 Servers Additional Server Considerations Performance Highlights of Custom Server ModelsExample Interactive UtilizationServer Dynamic Tuning SDT Page Affects of Server Dynamic Tuning Managing Interactive Capacity Interactive/Server characteristics in the real worldIs Interactive really Interactive? Page Migration from Traditional Models Number of interactive transactions per hour Interval end time hour and minuteUpgrade Considerations for Interactive Capacity 13.2 V5R1 DSD Performance Behavior Domino-Complementary Processing V5R1 Non-Domino ProcessingInteractive Processing Running Linux on a Dedicated Server Logical Partitioning on a Dedicated ServerPage Effect of CPU Speed on Batch Batch PerformanceEffect of Dasd Type on Batch Batch Workload DescriptionExpert Cache Tuning Parameters for BatchJob Priority Dynamic Priority SchedulingPage DB2 for i5/OS Performance New for i5/OS V6R1I5/OS V6R1 SQE Query Coverage Query Attribute POWER5 Processor POWER6 Processor Records Inserted/Selected DB2 i5/OS V5R4 HighlightsI5/OS V5R4 SQE Query Coverage I5/OS V5R3 Highlights I5/OS V5R3 SQE Query CoverageCommon table expressions Deletes Derived tables I5/OS V5R3 SQE Performance Enhancements Like/Substring predicates DB2 Multisystem LOB columnsPartitioned Table Support V5R2 Highlights Introduction of the SQL Query Engine Materialized Query Table Support Fast Delete SupportSQE Optimizer SQE Database Statistics SQE Query EngineStatistic Usage Example Indexing SQE for V5R2 SummaryEncoded Vector Indices EVIs DB2 for i5/OS Memory Sharing Considerations DB2 Symmetric Multiprocessing feature IntroductionDecision Support Queries SMP Performance SummaryJournaling and Commitment Control JournalingRemote Journal Function Smapp System-Managed Access Path Protection SmappCommitment Control DB2 Multisystem for i5/OSCopyright IBM Corp Triggers Referential IntegrityDescription Variable Length FieldsPerformance Expectations Reuse Deleted Record Space Description of FunctionComparison to Normal Inserts Performance References for DB2 Copyright IBM Corp Communications Performance CCIN3 System i Ethernet SolutionsCommunication Performance Test Environment HardwareSoftware Communication and Storage observations Dasd PerformanceLarge data transfer FTP Streaming Performance TCP/IP non-secure performanceTCP/IP Secure Performance RR & Acrr Performance1167 565.4 530.0 479.6 462.1 202.2 SSL Performance249.7 53.4 48.0 31.3 27.4 478.4 55.7 53.3 36.9 31.9VPN Performance SSL Relative PerformancePerformance Observations and Tips VPN Relative Performance27.5 10.9 15.4 18.7 88.8Page APPC, ICF, CPI-C, and Anynet Page HPR and Enterprise extender considerations Test Type Hprip Link Hprip Link Speed AnyNetSpeed = 10Mbps = 100Mbps For network information select Networking Additional InformationWeb 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 PHP Zend Core for System ConfigurationZend Core for Database and Workload DescriptionOS / DB Database AccessDatabase Persistent versus Non-Persistent Connections Zend Platform Database Isolation LevelsPHP System Sizing What’s new in V6R1? WebSphere Application ServerThi ShoUsing direct map native Jdbc Tuning changes in V6R1Using ‘threadUsed=false custom property toolbox Jdbc Use of unix sockets toolbox JdbcPage Topology of the Trade Application Page WebSphere Application Server Trade Capacity Results Trade3 Measurement ResultsTrade 6 Primitives Trade Scalability ResultsDescription 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 IBM WebFacing WebFaced applications, one simple, oneModerate, and one complex. See .4, for More in line with the other two machines Version 5.0 of WebfacingMany 5250 applications have been implemented With best performance techniques, such asDisplay File Record I/O Processing Tuning the Record Definition CacheCache Size Effect Cache Management Definition Cache Content ViewerDefinitions would be retained in the cache with few cache Misses for not commonly used recordsCache Viewer Button operations Cache Management Record Definition Loader Button OperationCompression Record Definition Loader Button operations OperationWebfacing Compression Enabling Compression in IBM Http Server powered by ApacheAdditional Resources PartnerWorld for Developers Webfacing website WebSphere Host Access Transformation Services Hats What’s new with V5R4 and HatsHats Customization Hats Customization CPW/User IBM Systems Workload Estimator for Hats System Application Server InstancePage WebSphere Commerce WebSphere PortalWebSphere Commerce Payments Performance Tips and Techniques Connect for iSeriesPerformance Observations/Tips Connect for iSeries Connector TypesPage Java Performance IntroductionWhat’s new in V6R1 IBM Technology for Java 32-bit and 64-bit Garbage Collection Native CodeJIT Compiler Classic VM 64-bitPage Garbage Collection Bytecode Verification Functional Considerations Determining Which JVM to UsePerformance Considerations General Guidelines Capacity PlanningJava Performance Tips and Techniques Classic VM-specific Tips I5/OS Specific Java Tips and TechniquesJava Language Performance Tips Consider the special property os400.jit.mmi.thresholdMinimize synchronized methods Java i5/OS Database Access Tips Instead, the above procedure should be written asPool Database Connections Resources IBM Software Solutions System i Cryptographic SolutionsIBM Hardware Solutions Cryptography PerformanceCSP API Sets Cryptography Performance Test EnvironmentMeasurement Results Software Cryptographic API PerformanceBytes/Second Hardware Cryptographic API PerformanceEncryption Threads Cipher Encrypt Performance4764 Transactions/second Bytes/secondCCA CSP Cryptography Observations, Tips and RecommendationsSupported number of 4764 Cryptographic Coprocessors ISeries NetServer File Serving Performance ISeries NetServer File Serving PerformanceConclusion/Explanations Response TimePage 10.1 DB2 for i5/OS access with Jdbc Jdbc Performance Tuning TipsDB2 for i5/OS Jdbc and Odbc Performance References for Jdbc 10.2 DB2 for i5/OS access with Odbc Odbc Performance Settings Page Microsoft Odbc webpage References for OdbcDomino on Mail and Calendaring Users MCU Domino Workload DescriptionsDomino Domino Web Access formerly known as iNotes Web AccessDomino Domain Monitor Additional memory was added for this test Domino Web Access client improvements with DominoResponse Time and Megahertz relationship Collaboration Edition and Domino Edition offerings Collaboration EditionDomino Edition Performance Tips / Techniques Page Page Domino Subsystem Tuning Domino Web AccessMain Storage Options Performance Monitoring StatisticsMinimize Thousands V5R3 Main Storage Options Response Times Sizing Domino on SystemPerformance Data Collection Tools Lpar and Partial Processor ConsiderationsSystem i NotesBench Audits and Benchmarks Performance Improvements for WebSphere MQ V5.3 CSD6 WebSphere MQ for iSeriesQueue Manager Start Following an Abnormal End Checkpoint Following a Journal Receiver Roll-overConclusions, Recommendations and Tips Test Description and ResultsOther Sources of Information Linux on iSeries Performance Basic Requirements -- Where Linux RunsSummary Key IdeasLinux on iSeries Architecture Linux on iSeries Technical OverviewLinux on iSeries Run-time Support Basic Configuration and Performance Questions Computational Performance -- C-based code General Performance Information and ResultsNumber Processors Partition Computational Performance -- JavaWeb Serving Performance Network Operations TCP/IP Function Megabit Ethernet LAN Virtual LANGcc and High Optimization gcc compiler option -O3 Gcc Compiler, VersionVirtual Disk Value of Virtual LAN and Virtual Disk13.7 DB2 UDB for Linux on iSeries Top Tips for Linux on iSeries Performance Linux on iSeries and IBM eServer Workload EstimatorPage Page Page Internal Native Attachment Dasd PerformanceDevices & Controllers Direct Attach Native Hardware CharacteristicsIntensive Workload Performance Comparison 14.1.2 iV5R2 Direct Attach DasdIntensive Workload 14.1.3 571B 14.1.3.1 571B RAID5 vs RAID6 10 15K 35GB Dasd14.1.3.2 571B IOP vs Iopless 10 15K 35GB Dasd Dasd 14.1.4 571B, 5709, 573D, 5703, 2780 IOA Comparison Chart14.1.4.4 14.1.5.1 14.1.6.2 Comparing 571E/574F and 571F/575B IOP and IOPLess1000 2000 3000 4000 Ops/Sec 14.1.7.4 14.1.8.1 Performance Limits on the 571F/575BPage 14.1.9.2 14.1.9.1 Direct Attach 571E/574F and 571F/575B Observations 100 200 300 400 500 600 Ops/Sec New in iV5R4M5 14.2.1 9406-MMA CEC vs 9406-570 CEC DasdRAID Hot Spare 14.2.3 12X Loop Testing Non Encrypted ASP vs Encrypted ASP New in iV6R1M0 Encrypted ASPNon Encrypted ASP vs Encrypted ASP 100 350 600 850 1100 1350 1600 1850 14.3.2 57B8/57B7 IOAPOWER6 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 Generic Concepts General Vios ConsiderationsGeneric 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 Virtual Scsi Bandwidth-Multiple Network Storage Spaces Native vs. Virtual PerformanceNwsd Read Scaling Virtual Scsi Bandwidth-Disk Scaling Sizing Sizing when using Dedicated ProcessorsCPU milliseconds to process virtual Scsi I/O transaction Sizing when using Micro-Partitioning Disk 1GB Sequential Read Sizing memoryAIX Virtual IO Client Performance Guide Supported Backup Device Rates Save/Restore PerformanceUse Optimum Block Size Useoptblk Save Command Parameters that Affect PerformanceData Compression Dtacpr Data Compaction CompactDatabase File related Workloads WorkloadsUser Mix User Mix 3GB contains 12,300 objectsComparing Performance Data Lower Performing Backup Devices Medium & High Performing Backup DevicesUltra High Performing Backup Devices Use of Multiple Backup Devices Parallel and Concurrent Library Measurements Large File Concurrent Save and Restore RatesLarge File Parallel Save and Restore RatesUser Mix Concurrent User Mix Concurrent RunsNumber of Processors Affect Performance 450 440 430 420100 Dasd and Backup Devices Sharing a TowerVirtual Tape 200Data To Save Hours Parallel Virtual Tapes 500Concurrent Virtual Tapes 1500 1000Large File Virtual Tape Scaling Save Write to Virtual tape Save and Restore Scaling using a Virtual Tape DriveLarge File Save User Mix Saves PCI-X ™ In a 5094/5294 tower use slot C08 or C09 High-End Tape Placement on System700 250 SLR60 15.19 5XX Tape Device RatesMeasurements in GB/HR all 8 Dasd in the system ASP Source File 1GB 15.21 5XX DVD RAM and Optical Library High Software CompressionASP 15.23 9406-MMA DVD RAM1GB 15.24 9406-MMA 576B IOPLess IOAIV5R4M5 July What’s New and Tips on Performance What’s New IV6R1M0 MarchIV5R4 January AugustIPL Performance IPL Performance ConsiderationsIPL Test Description Software Configuration 16.3 9406-MMA System Hardware InformationActive Database 16.4 9406-MMA IPL Performance Measurements Normal 1 iV5R4M5 Normal IPL Power-On Cold Start16.5 9406-MMA IPL Performance Measurements Abnormal 1 iV5R4M5 Abnormal IPL Partition MSDMSD Affects on IPL Performance Measurements 16.7.2 5XX Large system Hardware Configuration 16.7.1 5XX Small system Hardware Configuration16.7 5XX System Hardware Information Database16.8 5XX IPL Performance Measurements Normal 1 Normal IPL Power-On Cold Start16.9 5XX IPL Performance Measurements Abnormal Measurement units are in hours, minutes and secondsIPL Tips 16.10 5XX IOP vs IOPLess effects on IPL Performance NormalIntegrated BladeCenter and System x Performance V5R4 iSCSI Host Bus Adapter iSCSI HBAIntegrated xSeries Adapter IXA Effects of Windows and Linux loads on the host system Integrated xSeries Servers IXS17.2.1 IXS/IXA Disk I/O Operations ISCSI Disk I/O Operations Extended Write OperationsCrtsbsd SBSDQGPL/QFPHIS POOLS1 10000 ISCSI virtual I/O private memory pool17.2.5 IXS/IXA IOP Resource Virtual Ethernet ConnectionsISCSI attached servers IXS and IXA attached serversMachine Pool MBytes Base Pool Qfphis Private Pool Total Disk I/O CPU CostCPW per 1k Disk Operations Further notes about IXS/IXA Disk OperationsISCSI Target, IXA Capacity Comparison MB per Second Disk I/O ThroughputVE Capacity Comparisons Virtual Ethernet CPU Cost and CapacitiesPP TCP Stream i5/OS to Windows VE CPW CostWindows CPU Cost File Level Backup PerformanceFlbu SAV / RST Rates Additional Sources of InformationMicrosoft Hardware Compatibility Test URL See V5R3 Information Logical Partitioning LparV5R2 Additions General TipsV5R1 Additions ConsiderationsPerformance on a 12-way system Lpar Performance ConsiderationsPage Lpar Throughput Increase Lpar Measurements Over a Standalone 12-way 5920 26 %5700 21 % Miscellaneous Performance Information TPC-C Commercial PerformanceSAP Performance Information VolanoMark SPECjbb2000Dynamic Priority Scheduling Delay Cost TerminologyPriority Mapping to Delay Cost Curves Qdynptyscd = ‘1’ on Qdynptyscd = ‘0’ Performance Testing ResultsMain Storage Sizing Guidelines Memory Tuning Using the Qpfradj System ValueAdditional Memory Tuning Techniques User Pool Faulting Guidelines Setobjacc Set Object AccessLarge Memory Systems Batch Interactive19.7 AS/400 NetFinity Capacity Planning AS/400 NetFinity Software Inventory Performance Conclusions/Recommendations for NetFinity General Performance Tips and Techniques Adjusting Your Performance Tuning for ThreadsHistory Coming ChangeSolution ProblemGeneral Performance Guidelines -- Effects of Compilation In-liningOptimization Levels Theory -- and Practice Typical Storage Costs System Level ConsiderationsBrief Example Order1 Orderj Ordert OrderNShort but Important Tip about Data Base Which is more important?Final Thought About Memory and Competitiveness HMT Described Hardware Multi-threading HMTHMT and SMT Compared and Contrasted HMT Feature SMT FeatureSome key similarities and differences are Models With/Without HMTPOWER6 520 Memory Considerations Aligning Floating Point Data on Power6 Page Switchable IASP’s High Availability Switchable Resources ConsiderationsHigh Availability Performance Workload DescriptionSystem Configuration Workload ConfigurationHardware Configuration Cabling MapGeographic Mirroring Switchover TipsWorkload Description Hardware Configuration Cabling Map Large System ConfigurationGeographic Mirroring Measurements Switchable Towers using Geographic MirroringSynchronization on an idle system Active StateGeographic Mirroring Tips IBM Systems Workload Estimator Estimator Access Merging PM for System i data into the EstimatorWhat the Estimator is Not Page Commercial Processing Workload CPW Appendix A. CPW and CIW DescriptionsCPW Application Description Compute Intensive Workload CIW Page Page Performance Data Collection Services How Collection Services worksStarting Collection Services Batch Modeling Tool Bchmdl Page Page V6R1 Additions October CPW values for the IBM Power Systems IBM i operating systemCPW values for the IBM Power 595 IBM i operating system V6R1 Additions AugustV6R1 Additions April V6R1 Additions January Table C.3.1. CPW values for Power System ModelsIBM System i using the POWER5 processor technology IBM System i using the POWER6 processor technologyV5R4 Additions July V5R4 Additions January/May/August 2006 and January/AprilModel Edition Accelerator IBM ~ i5 Servers V5R3 Additions May, July, August, October 2004, JulyValue ExpressCPU ISeries Model 8xx Servers V5R2 Additions February, May, July750 540V5R2 Additions Model 810 and 825 iSeries for Domino FebruaryModels share L2 cache between 2 processors Standard Models 8xx ServersTable C.9.2.1 Standard Models 8xx Servers 10 V5R1 AdditionsTable C.9.1.1 Model 8xx Servers Model 8xx Servers10.3 V5R1 Dedicated Server for Domino Model 2xx ServersTable C.10.2.1 Model 2xx Servers Table C.10.3 .1 Dedicated Servers for DominoCapacity Upgrade on-demand Models CPW Values and Interactive Features for CUoD ModelsActive Stand-by 840-2352 840-2353 840-2354 16500 Table C.10.4.1.1 V5R1 Capacity Upgrade on-demand Models11 V4R5 Additions 11.1 AS/400e Model 8xx ServersTable C.11.1 Model 8xx Servers All new Condor models Dedicated Server for Domino Table C.11.2.1 Model 2xx ServersTable C.11.3.1 Dedicated Server for Domino 12 V4R4 Additions SB Models12.1 AS/400e Model 7xx Servers Table C.11.4.1 SB ModelsTable C.12.2.1 Current Model 170 Servers Model 170 Servers Current 170 ServersPrevious Model 170 Servers AS/400e Dedicated Server for Domino2407 2408 2409 120 Table C.12.2.2 Dedicated Server for Domino14 AS/400e Custom Servers 13 AS/400e Model Sxx Servers15 AS/400 Advanced Servers Table C.13.1 AS/400e Servers16 AS/400e Custom Application Server Model SB1 Table C.15.1 AS/400 Advanced Servers V4R1 and V4R2Table C.15.2 AS/400 Advanced Servers V3R7 Table C.16.1 AS/400e Custom Application Server Model SB1 17 AS/400 Models 4xx, 5xx and 6xx SystemsTable C.17.1 AS/400 Risc Systems Table C.17.2 AS/400e Systems18 AS/400 Cisc Model Capacities Table C.18.6 AS/400 Cisc Model 9406 Systems Table C.18.7 AS/400 Advanced Systems CiscTable C.18.8 AS/400 Advanced Servers Cisc