Contents | Previous | Next

CMS-Intensive (FS8F)

Workload Description

FS8F simulates a CMS user environment, with variations simulating a minidisk environment, an SFS environment, or some combination of the two. Table 1 shows the search-order characteristics of the two environments used for measurements discussed in this document.

Table 1. FS8F workload characteristics

The measurement environments have the following characteristics in common:

• A Bactrian-distribution think time averaging 30 seconds is used. (See Glossary of Performance Terms for an explanation of Bactrian distribution.)

• The workload is continuous in that scripts, repeated as often as required, are always running during the measurement period.

• Teleprocessing Network Simulator (TPNS) simulates users for the workload. TPNS runs in a separate processor and simulates LU2 terminals. User traffic travels between the processors through 3088 multisystem channel communication units.

FS8F Variations

Two FS8F workload variants were used for measurements, one for minidisk-based CMS users, and the other for SFS-based CMS users.

FS8F0R Workload:   All filemodes are accessed as minidisk; SFS is not used. All of the files on the C-disk have their FSTs saved in a shared segment.

FS8FMAXR Workload:   All file modes, except S and Y (which SFS does not support), the HELP minidisk, and T-disks that are created by the workload, are accessed as SFS directories. The CMSFILES shared segment is used. All read-only SFS directories are defined with PUBLIC READ authority and are mapped to VM data spaces. The read/write SFS directory accessed as file mode D is defined with PUBLIC READ and PUBLIC WRITE authority. The read/write SFS directories accessed as file modes A and B are private directories.

FS8F Licensed Programs

The following licensed programs were used in the FS8F measurements described in this document:

• VS COBOL II Compiler and Library V1R4M0

• Document Composition Facility V1R4M0

• VS FORTRAN Compiler/Library/Debug V2R5M0

• IBM High Level Assembler V1R2M0

• OS PL/I V2R3M0 Compiler & Library

• C & PL/I Common Library V1R2M0

• VTAM V3R4M1 (VTAM runs only)

• NCP V5R4M0 (VTAM runs only)

Shared Segments

CMS allows the use of saved segments for shared code. Using saved segments can greatly improve performance by reducing end users' working set sizes and thereby decreasing paging. The FS8F workload uses the following saved segments:

Measurement Methodology

A calibration is made to determine how many simulated users are required to attain the desired processor utilization for the baseline measurement. That number of users is used for all subsequent measurements on the same processor and for the same environment.

The measurement proceeds as follows:

• All of the users are logged on by TPNS.

• A script is started for each user after a random delay of up to 15 minutes. (The random delay prevents all users from starting at once.)

• A stabilization period (the length depending on the processor used) is allowed to elapse so that start-up anomalies and user synchronization are eliminated.

• At the end of stabilization, measurement tools are started simultaneously to gather data for the measurement interval.

• At the end of the measurement interval, the performance data is reduced and analyzed.

FS8F Script Description

FS8F consists of 3 initialization scripts and 17 workload scripts. The LOGESA script is run at logon to set up the required search order and CMS configuration. Then users run the WAIT script, during which they are inactive and waiting to start the CMSSTRT script. The CMSSTRT script is run to stagger the start of user activity over a 15 minute interval. After the selected interval, each user starts running a general workload script. The scripts are summarized in Table 2.

Table 2. FS8F workload script summary

The following are descriptions of each script used in the FS8F workload.

LOGESA: Initialization Script:  

 LOGON userid
 SET AUTOREAD ON
 IF FS8F0R workload
 THEN
     Erase extraneous files from A-disk
     Run PROFILE EXEC to access correct search order,
       SET ACNT OFF, SPOOL PRT CL D, and TERM LINEND OFF
 ELSE
     Erase extraneous files from A-directory
     Run PROFILE EXEC to set correct search order, SET ACNT OFF,
       SPOOL PRT CL D, and TERM LINEND OFF
 END
 Clear the screen
 SET REMOTE ON

WAIT: Ten-Second Pause:  
Leave the user inactive in a 10-second wait loop.

CMSSTRT: Random-Length Pause:  
Delay, for up to 15 minutes, the start for each user to prevent all users from starting scripts at the same time.

ASM617F: Assemble (HLASM) and Run:  

 QUERY reader and printer
 SPOOL PRT CLASS D
 XEDIT an assembler file and QQUIT
 GLOBAL appropriate MACLIBs
 LISTFILE the assembler file
 Assemble the file using HLASM (NOLIST option)
 Erase the text deck
 Repeat all the above except for XEDIT
 Reset GLOBAL MACLIBs
 Load the text file (NOMAP option)
 Generate a module (ALL and NOMAP options)
 Run the module
 Load the text file (NOMAP option)
 Run the module 2 more times
 Erase extraneous files from A-disk

ASM627F: Assemble (F-Assembler) and Run:  

 QUERY reader and printer
 Clear the screen
 SPOOL PRT CLASS D
 GLOBAL appropriate MACLIBs
 LISTFILE assembler file
 XEDIT assembler file and QQUIT
 Assemble the file (NOLIST option)
 Erase the text deck
 Reset GLOBAL MACLIBs
 Load the TEXT file (NOMAP option)
 Generate a module (ALL and NOMAP options)
 Run the module
 Load the text file (NOMAP option)
 Run the module
 Load the text file (NOMAP option)
 Run the module
 Erase extraneous files from A-disk
 QUERY DISK, USERS, and TIME

XED117F: Edit a VS BASIC Program:  

 XEDIT the program
 Get into input mode
 Enter 29 input lines
 Quit without saving file (QQUIT)

XED127F: Edit a VS BASIC Program:  

 Do a FILELIST
 XEDIT the program
 Issue a GET command
 Issue a LOCATE command
 Change 6 lines on the screen
 Issue a TOP and BOTTOM command
 Quit without saving file
 Quit FILELIST
 Repeat all of the above statements, changing 9 lines instead of 6 and
   without issuing the TOP and BOTTOM commands

XED137F: Edit a COBOL Program:  

 Do a FILELIST
 XEDIT the program
 Issue a mixture of 26 XEDIT file manipulation commands
 Quit without saving file
 Quit FILELIST

XED147F: Edit a COBOL Program:  

 Do a FILELIST
 XEDIT the program
 Issue a mixture of 3 XEDIT file manipulation commands
 Enter 19 XEDIT input lines
 Quit without saving file
 Quit FILELIST

COB217F: Compile a COBOL Program:  

 Set ready message short
 Clear the screen
 LINK and ACCESS a disk
 QUERY link and disk
 LISTFILE the COBOL program
 Invoke the COBOL compiler
 Erase the compiler output
 RELEASE and DETACH the linked disk
 Set ready message long
 SET MSG OFF
 QUERY SET
 SET MSG ON
 Set ready message short
 LINK and ACCESS a disk
 LISTFILE the COBOL program
 Run the COBOL compiler
 Erase the compiler output
 RELEASE and DETACH the linked disk
 QUERY TERM and RDYMSG
 Set ready message long
 SET MSG OFF
 QUERY set
 SET MSG ON
 PURGE printer

COB417F: Run a COBOL Program:  

 Define temporary disk space for 2 disks using an EXEC
 Clear the screen
 QUERY DASD and format both temporary disks
 Establish 4 FILEDEFs for input and output files
 QUERY FILEDEFs
 GLOBAL TXTLIB
 Load the program
 Set PER Instruction
 Start the program
 Display registers
 End PER
 Issue the BEGIN command
 QUERY search of minidisks
 RELEASE the temporary disks
 Define one temporary disk as another
 DETACH the temporary disks
 Reset the GLOBALs and clear the FILEDEFs

FOR217F: Compile 6 VS FORTRAN Programs:  

 NUCXDROP NAMEFIND using an EXEC
 Clear the screen
 QUERY and PURGE the reader
 Compile a FORTRAN program
 Issue INDICATE commands
 Compile another FORTRAN program
 Issue INDICATE commands
 Compile another FORTRAN program
 Issue INDICATE command
 Clear the screen
 Compile a FORTRAN program
 Issue INDICATE commands
 Compile another FORTRAN program
 Issue INDICATE commands
 Compile another FORTRAN program
 Clear the screen
 Issue INDICATE command
 Erase extraneous files from A-disk
 PURGE the printer

FOR417F: Run 2 FORTRAN Programs:  

 SPOOL PRT CLASS D
 Clear the screen
 GLOBAL appropriate text libraries
 Issue 2 FILEDEFs for output
 Load and start a program
 Rename output file and PURGE printer
 Repeat above 5 statements for two other programs, except
   erase the output file for one and do not issue spool printer
 List and erase output files
 Reset GLOBALs and clear FILEDEFs

PRD517F: Productivity Aids Session:  

 Run an EXEC to set up names file for user
 Clear the screen
 Issue NAMES command and add operator
 Locate a user in names file and quit
 Issue the SENDFILE command
 Send a file to yourself
 Issue the SENDFILE command
 Send a file to yourself
 Issue the SENDFILE command
 Send a file to yourself
 Issue RDRLIST command, PEEK and DISCARD a file
 Refresh RDRLIST screen, RECEIVE an EXEC on B-disk, and quit
 TRANSFER all reader files to punch
 PURGE reader and punch
 Run a REXX EXEC that generates 175 random numbers
 Run a REXX EXEC that reads multiple files of various sizes from
   both the A-disk and C-disk
 Erase EXEC off B-disk
 Erase extraneous files from A-disk

DCF517F: Edit and SCRIPT a File:  

 XEDIT a SCRIPT file
 Input 25 lines
 File the results
 Invoke SCRIPT processor to the terminal
 Erase SCRIPT file from A-disk

PLI317F: Edit and Compile a PL/I Optimizer Program:  

 Do a GLOBAL TXTLIB
 Perform a FILELIST
 XEDIT the PL/I program
 Run 15 XEDIT subcommands
 File the results on A-disk with a new name
 Quit FILELIST
 Enter 2 FILEDEFs for compile
 Compile PL/I program using PLIOPT
 Erase the PL/I program
 Reset the GLOBALs and clear the FILEDEFs
 COPY names file and RENAME it
 TELL a group of users one pass of script run
 ERASE names file
 PURGE the printer

PLI717F: Edit, Compile, and Run a PL/I Optimizer Program:  

 Copy and rename the PL/I program and data file from C-disk
 XEDIT data file and QQUIT
 XEDIT a PL/I file
 Issue RIGHT 20, LEFT 20, and SET VERIFY ON
 Change two lines
 Change filename and file the result
 Compile PL/I program using PLIOPT
 Set two FILEDEFs and QUERY the settings
 Issue GLOBAL for PL/I transient library
 Load the PL/I program (NOMAP option)
 Start the program
 Type 8 lines of one data file
 Erase extraneous files from A-disk
 Erase extra files on B-disk
 Reset the GLOBALs and clear the FILEDEFs
 TELL another USERID one pass of script run
 PURGE the printer

WND517F: Use Windows:  

 SET FULLSCREEN ON
 TELL yourself a message to create window
 QUERY DASD and reader
 Forward 1 screen
 TELL yourself a message to create window
 Drop window message
 Scroll to top and clear window
 Backward 1 screen
 Issue a HELP WINDOW and choose Change Window Size
 QUERY WINDOW
 Quit HELP WINDOWS
 Change size of window message
 Forward 1 screen
 Display window message
 TELL yourself a message to create window
 Issue forward and backward border commands in window message
 Position window message to another location
 Drop window message
 Scroll to top and clear window
 Display window message
 Erase MESSAGE LOGFILE
 IPL CMS
 SET AUTOREAD ON
 SET REMOTE ON

WND517FL: Use Windows with LOGON, LOGOFF:  

 SET FULLSCREEN ON
 TELL yourself a message to create window
 QUERY DASD and reader
 Forward 1 screen
 TELL yourself a message to create window
 Drop window message
 Scroll to top and clear window
 Backward 1 screen
 Issue a help window and choose Change Window Size
 QUERY WINDOW
 Quit help windows
 Change size of window message
 Forward 1 screen
 Display window message
 TELL yourself a message to create window
 Issue forward and backward border commands in window message
 Position window message to another location
 Drop window message
 Scroll to top and clear window
 Display window message
 Erase MESSAGE LOGFILE
 LOGOFF user and wait 60 seconds
 LOGON user on original GRAF-ID
 SET AUTOREAD ON
 SET REMOTE ON

HLP517F: Use HELP and Miscellaneous Commands:  

 Issue HELP command
 Choose HELP CMS
 Issue HELP HELP
 Get full description and forward 1 screen
 Quit HELP HELP
 Choose CMSQUERY menu
 Choose QUERY menu
 Choose AUTOSAVE command
 Go forward and backward 1 screen
 Quit all the layers of HELP
 RELEASE Z-disk
 Compare file on A-disk to C-disk 4 times
 Send a file to yourself
 Change reader copies to two
 Issue RDRLIST command
 RECEIVE file on B-disk and quit RDRLIST
 Erase extra files on B-disk
 Erase extraneous files from A-disk

Contents | Previous | Next