OpenVMS System Performance Management

PARSEC Group
Denver, Colorado, United States

Course Format: Classroom | E-learning | Virtual Class | Online | On-site | Blended | Self-paced

Course Description:

'' This course presents OpenVMS performance under three subsystems: Memory Management, I/O and CPU. This course features:

Isolating performance bottlenecks to one of the three subsystems.
Effects of SYSGEN parameters on each of the subsystems, when to change these parameters and when other management modifications or the purchase of new hardware will be required.
Sufficiency (keeping the system running), as well as tuning considerations.
The relative merits/drawbacks of using AUTOGEN

Course ContentsGeneral Performance Topics

Module Outline.
Performance Issues.
Performance Bottlenecks.
OpenVMS Performance Metrics.
OpenVMS Performance Tools.
Layout of Virtual Address Space

Module Outline.
Layout of Virtual Address Space (VAX, Alpha, I64).
Address Space.
OpenVMS Alpha Memory Management.
P0 Space Contents.
P1 Space Layout.
System Space Layout (Alpha, I64).
System Space.
S0/S1 Space.
Monitoring Pool.
Nonpaged Pool Reclamation.
Pool Zones.
Lock Manager Use of Pool Zones.
Image Activation and Paging

Module Outline.
Paging Compared to Swapping.
Address Translation.
Page Faults.
Locating Pages in Virtual Memory.
Producing an Image File.
Image Activation and Paging.
Image Activation.
Free Page List.
Valid Pages and the Working Set List.
Free List Fault Rate.
Modified List Fault Rate.
Secondary Hard Faults.
Interpreting Paging Metrics

Module Outline.
Sample Display from $Monitor Page.
Interpreting the $Monitor Page Display.
Interpreting Paging Metrics.
$SHOW MEMORY (Alpha, I64).
$MONITOR Page.
Working Sets and Automatic Working Set Adjustment

Module Outline.
Working Set List.
Working Set Size vs. Working Set List Size.
Parameters Affecting the Working Set List Size.
Automatic Working Set Adjustment.
Working Set Performance Considerations.
AWSA Performance Considerations.
AWSA Parameters.
Locality and Paging Performance

Module Outline.
Locality.
Locality Issues.
Effects of Poor Locality.
Effect of Improving Locality.
Shared Image Cost and Benefits

Module Outline.
Shared Image Costs and Benefits.
Image Activation and Paging.
Linking Shareable Images.
Alpha & I64 Resident Images.
Shared Address Data.
The Modified Page List and Modified Page Writing

Module Outline.
Modified Page List.
Modified Page List Parameters and Metrics.
Modified Page List Performance Considerations.
MPL Performance and Analysis.
Page File Exhaustion.
Modified Page Writer Parameter Relationships.
The Swapper and Memory Reclamation

Module Outline.
The Swapper and Memory Reclamation.
Free Page List Parameter Relationships.
General I/O Flow

Module Outline.
General I/O Flow.
Geometry of Disks.
Time-Based Components of a Disk Transfer.
Optimization of Disk Operations.
Virtual I/O Cache.
Extended File Cache (XFC).
XFC SYSGEN Parameters.
Permanent vs. Dynamic XFC Cache Size.
Monitoring the XFC.
SHOW MEMORY/CACHE.
Monitoring Volume Activity.
Monitoring File Activity.
Cache Control.
Resetting Cache Counters.
Analyzing the Effects of Fragmentation

Module Outline.
Determining I/O Rates.
Dump of Header for X.Dat.
Effect of Making File Contiguous.
Effect of Making Both Files Contiguous.
Using Multiple Spindles.
Controller Optimizations

Module Outline.
Controller Optimizations.
Locating Bottlenecks.
Other Optimizatons Through Layered Products.
RAID.
Files-11 ODS-2 Concepts

Module Outline.
Files-11 Terminology.
Directory Concepts.
File Open Operation.
Contiguity and the File System

Module Outline.
Contiguity and the File System.
Window Turns.
Preventing Fragmentation.
Split Transfers.
Window Turns Versus Split Transfers.
Accessing Sequential Files.
Accessing Files Randomly.
File System Caches

Module Outline.
File System Caches.
$MONITOR File.
Shared and Private Caches.
Checking for Shrunken Caches.
RMS Structures and Design Considerations

Module Outline.
RMS File Concepts.
Summary of RMS File Organizations.
File Structures.
Indexed File Organization for a File with No Alternate Keys.
RMS Interfaces for Affecting File Structure.
Bucket Splits.
Indexed File Growth.
Factors Affecting Bucket Splits.
Duplicate Keys for Data Records.
Compression.
RMS Utilities

Module Outline.
File Definition Language.
Techniques for Creating Data Files Using an FDL File.
Creating a Data File from an FDL File.
Optimizing RMS Indexed Files.
Examining File Structures.
Example Using RMS Utilities to Tune an Indexed File Structure.
Example Testing Random Access of Indexed Files.
RMS I/O Buffering Considerations

Module Outline.
Buffers and Buckets.
Design Considerations.
Multiblock Count Example.
Read Ahead/Write Behind.
Deferred Write.
Setting Up Multiple Buffers.
Determining the Number of Local Buffers.
Global Buffers.
Monitor RMS

Module Outline.
MONITOR RMS.
MONITOR RMS Example.
Understanding CPU Performance

Module Outline.
CISC vs. RISC Architectures.
Understanding CPU Performance.
VAX Alignment Considerations Example.
Data Alignment Issues.
Nonaligned Data Example.
Nonaligned and Compiler Aligned Data Sample Runs.
Aligned Data Example.
Badly Aligned Macro Example.
Well Aligned Macro Example.
C Code with Bad Alignment.
C Small Data Accesses Issues.
C Code with Good Alignment.
Debugger Issues.
Using the Break/Unaligned Debugger Option.
CPU Performance and Symmetric Multiprocessing.
Galaxy Performance Options.
Galaxy Computing Model.
Galaxy Shared Everything Model.
CPU Migration Under Galaxy.
Sample CPU Migration Using DCL.
CPU Controls Using DCL.
Understanding Time Spent in Modes

Module Outline.
OpenVMS Access Modes.
Interrupt Stack/State Time.
MONITOR TIMER.
Sample $MONITOR TIMER.
Impact of High Timer Service Rate.
MP Synchronization Time.
Dedicated CPU Lock Manager.
Dedicated CPU Lock Manager Interaction.
Dedicated CPU Lock Manager Examples.
Impact of the Dedicated CPU Lock Manager.
Dedicated CPU Lock Manager Litmus Test.
Idle Time.
Examining Time Spent in Access Modes.
Compatibility Mode Time.
Analyzing Time Spent in Modes.
OpenVMS Scheduling and Priorities

Module Outline.
Quantum and CPU Time.
Priorities.
Waiting States.
States of Concern.
Class Scheduler.
Class Scheduler Example.
PIXSCAN and DORMANTWAIT.
Locking Concepts

Module Outline.
Locking Concepts.
Other Characteristics of Locks.
Application Design and Locking Performance.
Locking Considerations.
Record Options in RAB for Locking Shared Files.
Sample $MONITOR LOCK/Local Buffers.
$MONITOR LOCK Display (Global Buffers).
Interpreting the $MONITOR LOCK Display.
Lock Manager Parameters.
Global Buffers.
Global Buffer Read-mode Bucket Locking.
RMS Contention Policies.
Setting RMS Contention Policies.
No Query Locking.
Distributed Locking Concepts

Module Outline.
Distributed Locking Concepts.
LOCKDIRWT and PE1.
PE1 Processing.
MONITOR RLOCK.
Sample $MONITOR RLOCK.
Lock Tree Inbound Example.
Higher Activity Example.
Higher LOCKDIRWT Example.
Performance Issues with Distributed Locking.
Distributed Locking Example.
The MSCP Server

Module Outline.
MSCP Server.
Interpreting $MONITOR MSCP.
...''

Phone:(888) 472-7732

School Address:

999 18th Street
Suite 1725
Denver, CO 80202 USA

Jobs & Resumes: Denver
Houses & Roommates: Denver

OpenVMS System Management I: Essentials for Established Systems
OpenVMS System Management II: Installation, Configuration and Customization
Managing Complex OpenVMS Systems
OpenVMS DCL Procedures
OpenVMS System, Network and Internet Security
OpenVMS Immersion
HP OpenVMS v8.3 technical update: User/Management features
HP OpenVMS v8.3 technical update: Programming/Internals features
TCP/IP Services for hp OpenVMS
OpenVMS DECnet Plus
OpenVMS v8.3 Internals for System Managers
OpenVMS Accelerated System Administration
HP OpenVMS v8.3 Programming Features
Scaleable Multithreaded Applications
HP OpenVMS Alpha Crash Dump Analysis
DECforms User Interface Programming
hp Tru64 UNIX Utilities and Commands
hp Tru64 UNIX System Administration
hp Tru64 UNIX Network Administration

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