IBM iDoctor iSeries job watcher : advanced performance tool

IBM iDoctor iSeries job watcher advanced performance tool

This IBM Redbooks publication is intended for those familiar with most of the IBM-provided iSeries performance tools that are generally available through the i5/OS operating systems commands and iSeries Navigator interfaces and the additional-cost Performance Tools for iSeries, 5722-PT1, licensed pr...

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Detalles Bibliográficos
Autor principal: Cook, Jim (-)
Autor Corporativo: International Business Machines Corporation. International Technical Support Organization (-)
Otros Autores: Chromey, Sandi, Edgerton, Tom, Hatt, Debbie
Formato: Libro electrónico
Idioma:Inglés
Publicado: Research Triangle Park, N.C. : IBM, International Technical Support Organization c2005.
Edición:1st ed
Colección:IBM redbooks.
Materias:
Operating systems (Computers)
Client/server computing.
Ver en Biblioteca Universitat Ramon Llull:https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009627080106719
Tabla de Contenidos:
  • Front cover
  • Contents
  • Notices
  • Trademarks
  • Preface
  • The team that wrote this redbook
  • Become a published author
  • Comments welcome
  • Chapter 1. iDoctor for iSeries Job Watcher positioning
  • 1.1 Job Watcher view of IBM-provided iSeries performance tools
  • 1.2 Components of performance
  • 1.3 System-level tools
  • 1.3.1 Real-time performance tools
  • 1.3.2 WRKSYSSTS command
  • 1.3.3 WRKACTJOB command
  • 1.3.4 WRKDSKSTS command
  • 1.3.5 WRKSYSACT command
  • 1.3.6 Collection Services
  • 1.3.7 Management Central
  • 1.3.8 Collect performance trace data
  • 1.3.9 Performance Explorer
  • 1.3.10 Database Monitor for iSeries
  • 1.3.11 SQL performance monitors
  • 1.3.12 iDoctor for iSeries suite of products
  • 1.4 Performance tools for previously collected data
  • 1.4.1 Performance Tools for iSeries Licensed Program product (5722-PT1)
  • 1.4.2 Performance Management for iSeries
  • 1.4.3 Performance Explorer
  • 1.5 Using the system available performance tools
  • 1.6 Expanded Job Watcher overview
  • Chapter 2. Overview of job waits and iDoctor for iSeries Job Watcher
  • 2.1 Simplified view of running and waiting
  • 2.2 Job Watcher terminology
  • 2.3 Level set on wait conditions
  • 2.4 The mysteries of waiting
  • 2.5 Are waits bad?
  • 2.6 Detailing waits
  • 2.7 iDoctor for iSeries Job Watcher
  • 2.8 Waiting point groupings (wait buckets)
  • 2.8.1 Do wait buckets defeat the purpose of many block points?
  • 2.8.2 Job Watcher wait points (ENUMs) and wait buckets
  • 2.9 LIC queuing primitives and more granular wait points
  • 2.9.1 Disclaimer
  • 2.9.2 Bucket 1: Dispatched Time (previously referred to as CPU)
  • 2.9.3 Bucket 2: CPU queuing
  • 2.9.4 Bucket 3: Total block time
  • 2.9.5 Bucket 4: Reserved
  • 2.9.6 Bucket 5: DASD (page faults)
  • 2.9.7 Bucket 6: DASD (non-fault reads)
  • 2.9.8 Bucket 7: DASD space usage contention.
  • 2.9.9 Bucket 8: Idle/waiting for work
  • 2.9.10 Bucket 9: DASD writes
  • 2.9.11 Bucket 10: DASD (other reads or writes)
  • 2.9.12 Bucket 11: DASD operation start contention
  • 2.9.13 Bucket 12: Mutex/Semaphore contention
  • 2.9.14 Bucket 13: Journal serialization
  • 2.9.15 Bucket 14: Machine level gate serialization
  • 2.9.16 Bucket 15: Seize contention
  • 2.9.17 Bucket 16: Database record lock contention
  • 2.9.18 Bucket 17: Object lock contention
  • 2.9.19 Bucket 18: Other waits
  • 2.9.20 Bucket 19: Main storage pool overcommitment
  • 2.9.21 Bucket 20: Java user (including locks)
  • 2.9.22 Bucket 21: Java JVM
  • 2.9.23 Bucket 22: Java (other)
  • 2.9.24 Bucket 23: Socket accepts
  • 2.9.25 Bucket 24: Socket transmits
  • 2.9.26 Bucket 25: Socket receives
  • 2.9.27 Bucket 26: Socket (other)
  • 2.9.28 Bucket 27: IFS pipe
  • 2.9.29 Bucket 28: IFS (other)
  • 2.9.30 Bucket 29: Data queue receives
  • 2.9.31 Bucket 30: MI queue (other)
  • 2.9.32 Bucket 31: MI wait on events
  • 2.9.33 Bucket 32: Abnormal contention
  • 2.10 Management Central's use of wait bucket mapping
  • Chapter 3. Getting started
  • 3.1 Enhancements to Job Watcher at V5R3M0
  • 3.1.1 The collection engine
  • 3.1.2 GUI
  • 3.1.3 Naming
  • 3.2 How to obtain Job Watcher
  • 3.3 Starting a Job Watcher collection
  • 3.3.1 Connecting to your system
  • 3.3.2 Access Job Watcher
  • 3.3.3 Starting the Job Watcher collection wizard
  • 3.3.4 Data collection options
  • 3.3.5 Job and task options
  • 3.3.6 More on selecting specific jobs and tasks
  • 3.3.7 Ending Options window
  • 3.3.8 Job Watcher Wizard summary
  • 3.3.9 Active Job Watcher
  • 3.4 Stopping a Job Watcher collection
  • 3.5 Viewing Job Watcher data
  • 3.5.1 Job Watcher view
  • 3.5.2 iDoctor preferences
  • 3.5.3 Reports and graphs: Example 1
  • 3.5.4 Graphs and reports: Example 2
  • 3.5.5 Tabs in the Interval Details window.
  • 3.5.6 Additional Job Watcher graphs
  • Chapter 4. Analysis example: traditional batch ILE RPG application
  • 4.1 Analyzing the problem
  • 4.2 Activation group usage
  • Chapter 5. SQL, call stack, and journal analysis examples
  • 5.1 Our example application and preliminary performance analysis
  • 5.2 SQL analysis
  • 5.2.1 Getting started
  • 5.2.2 Viewing an active SQL statement using the GUI
  • 5.2.3 Data Viewer
  • 5.2.4 Finding jobs running most SQL statements
  • 5.3 Call stack analysis for task counts
  • 5.3.1 Produce the resolved call stack file
  • 5.3.2 The call stack for jobs with active SQL statements
  • 5.3.3 Finding user programs running active SQL statements
  • 5.3.4 Finding any SQL-related or database-related system activity
  • 5.4 Journal analysis
  • 5.4.1 No journal caching
  • 5.4.2 Journal caching
  • Chapter 6. Analysis example: Java application
  • 6.1 Two problem scenarios
  • 6.2 CPU "misusage"
  • 6.2.1 Job Watcher
  • 6.3 Heap growth
  • 6.3.1 Heap Analyzer
  • Appendix A. Installing and uninstalling Job Watcher details
  • Installation requirements
  • Installing Job Watcher
  • Uninstalling Job Watcher
  • Server side
  • Client side
  • Appendix B. Database files created by Job Watcher
  • Job Watcher terminology
  • Files created by every Job Watcher collection
  • Files created only when call stack information is specified in a Job Watcher collection
  • Files created only when SQL information is specified in a Job Watcher collection
  • Files created only when activation group information is specified in a Job Watcher collection
  • Files created only when sockets information is specified in a Job Watcher collection
  • Description of ENUM to queueing bucket identifier mappings
  • Description of ENUM to queueing bucket mappings
  • Getting started writing queries over Job Watcher collection data.
  • The master file QAPYJWTDE for jobs, threads, and tasks
  • Status file QAPYJWSTS
  • Job file QAPYJWPRC
  • Task dispatchable unit priorities scheme
  • Appendix C. Querying and graphing tips for Job Watcher
  • Querying Job Watcher data
  • Query definition interface
  • Accessing the query definition interface
  • Viewing your query
  • Saving your new query definition
  • Working with query definitions
  • SQL Query view
  • Accessing the SQL Query view
  • Changing field (column) headings in your query results
  • Graph views
  • User-defined graphs
  • Appendix D. Overview of Job Watcher 5250 commands
  • Job Watcher 5250 commands
  • WCHJOB command
  • WCHJOB parameters
  • CPYJWCOL command
  • CPYJWCOL parameters
  • DLTJWCOL command
  • DLTJWCOL parameters
  • FTPJWCOL command
  • FTPJWCOL parameters
  • RSTJWCOL command
  • RSTJWCOL parameters
  • SAVJWCOL command
  • SAVJWCOL parameters
  • ADDPRDACS command
  • RTVSTKDTA command
  • tRTVSTKDTA parameters
  • Automatically submit a Job Watch
  • Appendix E. Job Watcher advanced topics
  • Collection specification tips
  • Interval size
  • Ensure job names are captured for all jobs on the system
  • Collect data as fast as possible?
  • The Job Watcher collection process in detail
  • Task count state changes
  • Waits that span multiple intervals
  • Job run/wait profile: how to fill in blank intervals
  • Before and after graphs for filled blank interval support
  • Job Watcher limitations
  • Glossary
  • Related publications
  • IBM Redbooks
  • Online resources
  • How to get IBM Redbooks
  • Using the SQL examples in this redbook
  • IBM Support and downloads
  • IBM Global Services
  • Index
  • Back cover.

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