Document revision date: 30 March 2001
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OpenVMS Performance Management


Previous Contents Index

Appendix A
Appendix A Decision Trees
Appendix B
Appendix B MONITOR Data Items
Appendix C
Appendix C MONITOR Multifile Summary Report
Appendix D
Appendix D ODS--1 Performance Information
     D.1     Disk or Tape Operation Problems (Direct I/O)
         D.1.1         Device I/O Rate Is Below Capacity
         D.1.2         Explicit QIO Usage Is Too High
     D.2     Adjust Working Set Characteristics: Establish Values for Ancillary Control Processes
     D.3     Enable Swapping for Disk ACPs
     D.4     Remove Blockage Due to ACP
         D.4.1         Blockage Due to a Device, Controller, or Bus
         D.4.2         Reduce Demand on the Device That Is the Bottleneck
         D.4.3         Reduce Demand on the Controller That Is the Bottleneck
         D.4.4         Reduce Demand on the Bus That Is the Bottleneck
Glossary
Glossary Glossary
Index
Index
Examples
4-1 Image-Level Accounting Report
7-1 Procedure to Obtain Working Set Information
7-2 Displaying Working Set Values
Figures
3-1 OpenVMS Memory Configuration
3-2 Working Set Regions for a Process
3-3 Effect of Working Set Size on Page Fault Rate
3-4 Setting Minimum and Maximum Page Fault Rates
3-5 An Example of Working Set Adjustment at Work
3-6 Example Without Shared Code
3-7 Example with Shared Code
A-1 Verifying the Validity of a Performance Complaint
A-2 Steps in the Preliminary Investigation Process
A-3 Investigating Excessive Paging---Phase I
A-4 Investigating Excessive Paging---Phase II
A-5 Investigating Excessive Paging---Phase III
A-6 Investigating Excessive Paging---Phase IV
A-7 Investigating Excessive Paging---Phase V
A-8 Investigating Swapping---Phase I
A-9 Investigating Swapping---Phase II
A-10 Investigating Swapping---Phase III
A-11 Investigating Limited Free Memory---Phase I
A-12 Investigating Disk I/O Limitations---Phase I
A-13 Investigating Disk I/O Limitations---Phase II
A-14 Investigating Terminal I/O Limitations---Phase I
A-15 Investigating Terminal I/O Limitations---Phase II
A-16 Investigating Specific CPU Limitations---Phase I
A-17 Investigating Specific CPU Limitations---Phase II
C-1 Prime-Time OpenVMS Cluster Multifile Summary Report
Tables
3-1 Static Parameter VBSS_ENABLE Bit Settings
3-2 Dynamic Parameter VBSS_ENABLE2 Bit Settings
3-3 Parameter MMG_CTLFLAGS Bit Settings
8-1 Components of a Typical Disk Transfer (4- to 8-Block Transfer Size)
B-1 Summary of Important MONITOR Data Items


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