1993 Tuning Letters

Home Publications Cheryl Watson’s Tuning Letter Tables of Contents 1993 Tuning Letters

Nov/Dec 1993 (46 pages) 
FOCUS: Tuning Cache 

        • Review & Definitions
        • More Controllers
        • Monitoring Cache
        • Controlling Cache
        • Software Products
        • Tuning Cache
        • Cache Candidates
        • Cache Bibliography

In Brief

      • Unnecessary Overhead
      • New SRM Workload Manager
      • New CPU Comparison Chart

Update Sheet Issued 4/94 

Sep/Oct 1993 (no issue)

July/Aug 1993 (32 pages) 
FOCUS: LPAR Update 

        • EMIF
        • MDF
        • MVS 4.3 & 9021 SEC 228150

Tuning Tips

        • Tuning Logical Swap (SP 3.1.3)
        • Changes in Logical Swap
        • Logical Swap Experiences
        • Using Hiperspaces With SAS

Downsizing Dangers

        • Why Downsize?
        • A Reasonable Approach
        • Bibliography

Q & A

        • Inconsistent TSO Response Time
        • RMF Workload Measures

Feedback

      • Frequency of Therapeutic IPLs
      • More on Dual Copy

Supplement 

          SHARE 81.0 Trip Report (14 pages)

Update Sheet Issued 2/94 

May/June 1993 (34 pages)
FOCUS: IBM Cache Overview 

        • Introduction
        • History
        • Caching Basics
        • Caching Operations
        • Extended Functions
        • Advanced Functions

SP 4.3 Tuning Recommendations

        • Some Interesting Notes
        • SMF Synchronization
        • Virtual Storage Management
        • RMF Tape Mount Monitor
        • SRM FIXCIDX Parameter
        • SMF Enhancements
        • New Capture Time
        • PR/SM Changes

In Brief

        • New Transaction Definition
        • New Amdahl Performance Report

Feedback

      • CSCBs and ACF2
      • More on IRA500E
      • Tracking Germains

March/April 1993 (57 pages) 

      MVS Overview: SORT

      • Sort Basics
      • SyncSort Basics
      • DFSORT Basics
      • Sort Measurements
      • Sort Utilities

FOCUS: Tuning Sorts 

        • An Approach to Tuning
        • Analyzing Sort Activity
        • Setting System Defaults
        • Tuning Execution Parameters
        • Tuning Storage
        • Tuning Sort Work Areas
        • Tuning Sort Files
        • Tuning Sort Exits
        • Tuning SyncSort Summary
        • Tuning DFSORT Summary
        • Finding Alternatives
        • Sort Bibliography
        • Parameter Cross-reference

In Brief

        • Interesting IBM Publications
        • Notes From Share

Q & A

        • What’s Maximum Region Size?

Feedback

      • More on LPA
      • NSR Degradation

Update Sheet Issued 6/93

Jan/Feb 1993 (41 pages) 
MVS Overview

        • Virtual Storage Basics

MVS Measurements

        • Virtual Storage

In Brief

      • Interesting Manuals
      • Table I – Subpools

FOCUS: Tuning Virtual Storage 

        • Using VIRTUAL=REAL
        • Managing Region Size
        • Tracking Common Storage
        • Tuning PLPA
        • Exploiting 31-bits
        • Avoiding Fragmentation
        • More Tips
        • Controlling Hiperspaces & Data Spaces
        • Virtual Storage

Bibliography

        Q & A

        • Therapeutic IPLs

Feedback

      • Paging Increased With SP 4.2

Update Sheet Issued 12/93