Updated: 11 December 1998

OpenVMS Performance Management

A
Accounting utility (ACCOUNTING)
collecting data
image-level
disabling
enabling
interpreting data
report generation
ACP (ancillary control process)
establishing values for
for ODS-1 disks
parameters
removing blockage
Adjustment period
definition
ALTPRI system privilege
Ancillary control process
See ACP
Application code sharing
Audit
performance
Authorize utility (AUTHORIZE) #1
Authorize utility (AUTHORIZE) #2
priorities
adjusting
quotas
modifying
AUTOGEN command procedure
changing system parameters
feedback mode #1
feedback mode #2
feedback report
swapper trimming
Automatic working set adjustment
See AWSA
AWSA (automatic working set adjustment) #1
AWSA (automatic working set adjustment) #2
AWSA (automatic working set adjustment) #3
AUTOGEN
enabling
investigating status
page faulting
parameters
adjusting
swapper trimming
tuning
tuning to respond to increased demand
voluntary decrementing #1
voluntary decrementing #2
B
Backing store
paging files
section files
Backup utility (BACKUP)
restoring contiguity on fragmented disks
Balance set
definition
Balance slots
real
virtual
disabling
enabling
BALSETCNT system parameter
adjusting #1
adjusting #2
artificially induced swapping
increasing
reducing
Batch jobs
establishing values for
Batch processing environment
working set limits
Batch queues
creating
jobs
base priority
working set characteristics
Borrowing
analyzing problems
deciding when too generous
tuning to make more effective
Buffered I/O
definition
in relation to terminal operation problems
Buffers
RMS
reducing disk I/O
BUGCHECKFATAL system parameter
C
Caches
file system
adjusting
hit rate
miss rate
See also Page caches
sizes
virtual I/O
Class scheduler #1
Class scheduler #2
Collided page (COLPG) wait state
Common event flag (CEF) wait state
Complaints
analyzing
hardware
log files
Compute-bound processes
controlling growth
curtailing
suspending
Compute queue
optimal length
Context switching
definition
Convert utility (CONVERT)
restoring contiguity on fragmented disks
CPU resource
affected by swapping
assessing relative load
capacity
types of
compute queue
optimal length
equitable sharing
inequitable sharing
load balancing in an OpenVMS Cluster
offloading
on a network
processor modes
reducing consumption
response time
CPUs (central processing units)
adding capacity #1
adding capacity #2
determining when capacity is reached
limitations
isolating
time spent in supervisor mode
D
DEC File Optimizer for OpenVMS
restoring contiguity on fragmented disks
DECamds
DECevent utility
Demand Zero Fault Rate
Detached processes
base priority
establishing values for
working set characteristics
Direct I/O #1
Direct I/O #2
definition
map
Disk I/O resource
disk capacity and demand
data transfer capacity
demand by users and the system
seek capacity
equitable sharing
evaluating responsiveness
factors limiting performance
function
improving responsiveness
load balancing
offloading
RAM disks
virtual I/O cache
reducing consumption
solid-state disks
Disks
activity due to paging or swapping
average response time
direct access
fragmentation of
correcting
effect on system performance
MSCP served
remote access
thrashing
investigating
transfer
components
Dormant processes
DORMANTWAIT system parameter
E
Error log files
Error Log utility (ERROR LOG)
Executive mode
RMS
F
Faults
See Pages
Feedback mode
See AUTOGEN
File-extend parameters
setting
File system
ACP parameters
cache
ACP/XQP parameters
adjusting
hit rate
miss rate
caching
high-water marking
I/O activity
Free List Fault Rate
Free page (FPG) wait state
Free-page list
evaluating
limited free memory
analyzing
FREEGOAL system parameter
page faulting
setting
FREELIM system parameter
page faulting

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