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SCRIPT EXTERNAL DOCUMENTATION
100-180-003-01
TONY LAUCK
REV: PETER CONKLIN
FILE: SCRIPT.RNO%006
25 JULY 70
The information in this document is subject to change without notice
and should not be construed as a comitment by Digital Equipment
Corporation. Digital Equipment Corporation assumes no responsibility
for and errors that may appear in this document.
The software described in this document is furnished under a license
and may be used or copied only in accordance with the terms of such
license.
Digital Equipment Corporation assumes no responsibility for the use or
reliability of its software on equipment that is not supplied by
DIGITAL.
Copyright (C) 1973,1979 by Digital Equipment Corporation
The following are trademarks of Digital Equipment Corporation:
DIGITAL DECsystem-10 MASSBUS
DEC DECtape OMNIBUS
PDP DIBOL OS/8
DECUS EDUSYSTEM PHA
UNIBUS FLIP CHIP RSTS
SCRIPT 25 JULY 70 100-180-003-01 Page 2
COMPUTER LABS FOCAL RSX
COMTEX INDAC TYPESET-8
DDT LAB-8 TYPESET-10
DECCOMM DECsystem-20 TYPESET-11
SCRIPT 25 JULY 70 100-180-003-01 Page 3
THE PROGRAM DESCRIBED IN THIS MEMORANDUM WAS DEVELOPED TO AID THE
STUDY OF THE PDP-10 MONITOR. IT IS NOT A SUPPORTED PRODUCT, BUT IS
AVAILABLE TO CUSTOMERS ON A FOR INFORMATION PURPOSES ONLY BASIS.
CONTENTS
1 PURPOSE
2 JOB CAPABILITY
3 CONTROL FEATURES
4 ANALYSIS OF RESULTS
5 FORMAT OF SCRIPT FILES
6 OPERATING INSTRUCTIONS
SCRIPT 25 JULY 70 100-180-003-01 Page 4
1.0 PURPOSE
THE SCRIPT PROGRAM ALLOWS PREDETERMINED SEQUENCES OF
CHARACTERS TO BE SENT OVER MULTIPLE PSEUDO-TELETYPES AND
THEREBY ALLOW THE SIMULATION OF A LOAD ON THE TIME-SHARING
SYSTEM. THE RESULTS OF A RUN CAN BE WATCHED ON-LINE AND
STATISTICS OF RESPONSE TIME, ETC. CAN BE RECORDED ON THE
SYSTEM DISK.
2.0 JOB CAPABILITY
THE SCRIPT PROGRAM HAS BEEN WRITTEN AS A REENTRANT PROGRAM.
THE CODE AND TEXT TO BE SENT ARE IN THE HIGH SEQMENT AND CAN
BE SHARED BY SEVERAL JOBS, EACH WITH A 1K LOW SEGMENT. EACH
JOB CAN CONTROL UP TO 14 JOBS, SO IT BECOMES POSSIBLE TO
SIMULATE A LARGE NUMBER OF PDP-10 TIME-SHARING USERS.
SCRIPT 25 JULY 70 100-180-003-01 Page 5
CONTROL FEATURES
3.0 CONTROL FEATURES
THE SCRIPT IS LOADED INTO THE HIGH SEGMENT FROM ANY PDP-10
INPUT DEVICE. IN ADDITION TO THE TEXT TO BE SENT, CONTROL
COMMANDS CAN BE INCLUDED TO DETERMINE THE SPEED AT WHICH THE
SIMULATED USERS WILL OPERATE.
3.1 TIMING PARAMETERS
PARAMETERS SUBJECT TO VARIATION INCLUDE TYPE-IN TIME,
TYPE-OUT TIME, AND USER "THINK" TIME. THE TYPE-IN AND
TYPE-OUT TIME CAN BE SPECIFIED AS A CONSTANT OR AS A RATE,
IN WHICH CASE THE TIME WOULD DEPEND ON THE NUMBER OF
CHARACTERS SENT OR RECEIVED. THE "THINK" TIME IS BROKEN UP
INTO TWO PARTS: 1) THE ALLOWED RESPONSE TIME, AND 2) "FREE"
TIME. IF THE COMPUTER GIVES INSTANTANEOUS RESPONSE TO A
COMMAND, THE TOTAL DELAY IS SIMPLY THE SUM OF THE TWO
QUANTITIES. IF RESPONSE IS GREATER THAN ALLOWED, "THINK"
TIME IS EQUAL TO THE "FREE" TIME. IN BETWEEN, "THINK" TIME
IS THE SUM OF ALLOWED RESPONSE PLUS "FREE" TIME MINUS THE
ACTUAL COMPUTER RESPONSE TO THE COMMAND. ONE ADDITIONAL
TIME FACTOR ALLOWED IS THE ABILITY TO SET A MAXIMUM RESPONSE
PLUS TYPE-OUT DELAY FOR A GIVEN COMMAND. IF THE COMMAND
EXCEEDS THIS LIMIT, THEN THE JOB IS INTERRUPTED BY SENDING
TWO CONTROL-C CHARACTERS OVER THE PSEUDO TELETYPE. THIS
ALLOWS A SCRIPT TO INCLUDE PROGRAM LOOPS WHICH ARE
INTERRUPTED AFTER A SPECIFIED TIME INTERVAL. THE OPERATOR
CAN MULTIPLY THESE DELAY TIMES BY AN INTEGER FACTOR. IN
PARTICULAR, THEY CAN BE SET TO 0 TO DEBUG A SCRIPT WITHOUT
THE DELAYS PRESENT.
3.2 REPETITION OF SCRIPTS
AN ADDITIONAL SCRIPT LANGUAGE FEATURE ALLOWS THE SCRIPT TO
SPECIFY HOW MANY TIMES IT WILL BE EXECUTED, SO THAT STEADY
STATE LOADING CONDITIONS CAN BE MEASURED. THE OPERATOR CAN
OVERRIDE THE REPEAT COUNT.
3.3 STAGGERING LOAD BUILDUP
WHEN MULTIPLE JOBS ARE TO FOLLOW THE SCRIPT, THE SCRIPT MAY
SPECIFY A STAGGERING INTERVAL SO THAT LOAD BUILDUP CAN BE
GRADUAL.
3.4 MULTIPLE USER NUMBERS
AS AN OPTIONAL FEATURE, THE SCRIPT PROGRAM WILL CONVERT THE
"#" CHARACTER INTO A TWO DIGIT OCTAL STRING EQUAL TO THE PTY
UNIT NUMBER. THIS WILL ALLOW ONE SCRIPT TO LOG MANY JOBS IN
UNDER DIFFERENT NUMBERS OR FOR MULTIPLE JOBS TO USE SEPERATE
FILES. ALL STANDARD SCRIPTS USE THIS FEATURE TO LOG INTO
[4,777#].
SCRIPT 25 JULY 70 100-180-003-01 Page 6
ANALYSIS OF RESULTS
4.0 LOGGING OF RESULTS
THE SCRIPT PROGRAM MAKES AN ENTRY IN THE LOG FILE FOR EACH
LINE OF PTY DATA SENT TO THE TIME-SHARING SYSTEM. THE TIME,
IDENTITY OF A PARTICULAR JOB, NUMBER OF CHARACTERS SENT,
NUMBER OF CHARACTERS RECEIVED, NUMBER OF BUFFERS RECEIVED,
AND TOTAL RESPONSE TIME ARE ALL RECORDED. IN ADDITION,
DELAYS IN SENDING OR SIMULATING TELETYPE OUTPUT DUE TO POOR
SCRIPT PROGRAM RESPONSE ARE ALSO RECORDED. THIS PROVIDES
SOME IDEA OF HOW THE RESPONSE TO THE CONTROLLING JOB
AFFECTED SYSTEM LOAD AND RESPONSE TIME MEASUREMENTS.
IDEALLY THE CONTROLLLING JOB WOULD BE REAL-TIME, I.E. HIGH
PRIORITY AND LOCKED IN CORE. DELAYS TO THE SCRIPT
INPUT/OUTPUT LIGHTEN THE OVERALL SYSTEM LOAD, WHILE DELAYS
IN RECEIVING REQUESTS FOR MORE INPUT ARE MEASURED AS IF THE
USER JOB HAD EXPERIENCED WORSE RESPONSE THAN IT ACTUALLY
DID.
AS A FURTHER CHECK ON ERRORS IN RESPONSE TIME MEASUREMENTS
DUE TO POOR SCRIPT PROGRAM RESPONSE, A "+" CHARACTER IS
OUTPUT WHEN POOR SCRIPT PROGRAM RESPONSE MAY HAVE CAUSED THE
PT WAKE FUNCTION IN THE MONITOR TO FAIL. WHEN THIS HAPPENS,
THE SCRIPT PROGRAM WILL WAKE UP BASED ON ITS SLEEP INTERVAL
AND NOT ON OBJECT JOB RESPONSE. NORMALLY, THE MONITOR
RESETS THE SLEEP COUNT WHEN A JOB RUNNING ON A
PSEUDO-TELETYPE NEEDS SERVICE. THE SCRIPT PROGRAM TESTS THE
PTY FLAGS, AND IF THE PTY DOESN'T NEED SERVICE SLEEPS.
IDEALLY, THIS SLEEP WILL BE TERMINATED IMMEDIATELY BY THE
MONITOR. HOWEVER, SHOULD THE SCRIPT PROGRAM BE RESCHEDULED
BETWEEN TESTING THE PTY AND DOING THE SLEEP, THIS CAN'T
HAPPEN. IN THIS CASE, THE SCRIPT PROGRAM COULD SLEEP FOR
ITS MAXIMUM INTERVAL. THIS COULD BE UP TO 5 SECONDS.
UNFORTUNATELY, THERE IS NO WAY TO TELL IF THIS HAPPENED.
THE "+" IS SET WHENEVER A JOB GETS RESPONSE AND THE TIME OF
DAY EXCEEDED THE TIME OF DAY THE SLEEP ENTRY WOULD HAVE
TERMINATED. THIS CAN OCCUR ALSO DUE TO POOR RESPONSE ONCE
THE SLEEP INTERVAL HAS TERMINATED.
4.1 DEFINITION OF RESPONSE TIME
THE RESPONSE TIME MEASURED IS THE TOTAL TIME FROM OUTPUTTING
("TYPING") A LINE OVER THE PTY UNTIL THE PROGRAM REQUESTS
THE NEXT LINE OR TIMES OUT TO TWO CONTROL-C CHARACTERS, LESS
TIME SPENT SIMULATING TTY OUTPUT. THUS, IF ONE LINE TO THE
SYSTEM PRODUCES 50 LINES OF OUTPUT, ONE RESPONSE TIME WILL
BE RECORDED, WHICH IS THE TOTAL TIME THE USER WAS WAITING
FOR THE COMPUTER.
SCRIPT 25 JULY 70 100-180-003-01 Page 7
ANALYSIS OF RESULTS
4.2 OVERLAP AND ITS EFFECT ON RESPONSE TIME
MEASUREMENTS
THERE IS ONE POSSIBLE DIFFICULTY: OVERLAP BETWEEN OUTPUT
AND THE NEXT INPUT. NORMALLY AN OUTPUT-BOUND PROGRAM IS
WOKEN UP WHEN 8 CHARACTERS OF SPACE REMAIN IN THE MONITOR
BUFFER. THUS A 0.8 SECOND DELAY (AT 10 CHARACTERS/SEC)
WOULD NOT CAUSE A PAUSE IN TYPE-OUT. UNFORTUNATELY, THE PTY
TRANSFERS A LINE AT A TIME, SO THIS OVERLAPPED TIME IS LOST.
THE NET AFFECT IS TO MAKE THE MEASURED RESPONSE TIMES LOOK A
LITTLE WORSE THAN RESPONSE TIMES AN ACTUAL TTY USER WOULD
SEE. INCIDENTALLY, SHOULD THE PROGRAM REQUEST INPUT WHILE
TYPEOUT IS IN PROGRESS, ALL TYPEOUT DELAY WILL BE COMPLETED
BEFORE ACTING ON THE INPUT REQUEST.
4.3 DIFFERENT BUFFERING MODES
IF THE SCRIPT SPECIFIED OUTPUT AS A FUNCTION OF TIME, THEN
THE SCRIPT PROGRAM WAITS UNTIL THE DELAY IS UP, THEN DATA IS
TRANSFERRED OVER THE PTY TO THE SCRIPT PROGRAM. WHEN THE
SCRIPT SPECIFIES AN OUTPUT RATE, THE SCRIPT PROGRAM MUST
FIRST READ THE DATA FROM THE PTY, DETERMINE THE DELAY, AND
THEN SLEEP. SPECIFYING ONE MODE OR THE OTHER MAY BE
APPROPRIATE TO PARTICULAR PROGRAMS DUE TO DIFFERENT
BUFFERING MODES.
4.4 ANALYSIS OF RESPONSE TIME RESULTS
IN ANY EVENT, THE USER MUST ANALYZE RESPONSE-TIME RESULTS
WITH A KNOWLEDGE OF THESE FACTORS, AND AN UNDERSTANDING OF
THE OVERLAP BETWEEN USER PROGRAM BUFFERS, MONITOR BUFFERS,
AND SCRIPT BUFFERS. ALTERNATELY, IF PSYCHOLOGICAL SYSTEM
PERFORMANCE IS IMPORTANT, THE USER CAN USE THE SYSTEM
MANUALLY AND SEE HOW CLEVERLY THE SYSTEM IS CONCEALING ITS
RESPONSE. THE MAIN PURPOSE OF THE SCRIPT PROGRAM IS TO
OBTAIN CONSISTENT RELATIVE RESPONSE FIGURES TO ASSESS THE
EFFECT OF HARDWARE AND SOFTWARE CHANGES IN THE TIME-SHARING
SYSTEM.
SCRIPT 25 JULY 70 100-180-003-01 Page 8
FORMAT OF SCRIPT FILES
5.0 FORMAT OF SCRIPT FILES
5.1 COMMAND LINES
A SCRIPT FILE CONSISTS OF SCRIPT LINES WHICH END WITH A
<LINE FEED> CHARACTER. SCRIPT LINES ARE EITHER COMMAND
LINES OR TEXT LINES. COMMAND LINES ARE USED TO CONTROL
TYPING AND OPERATION OF THE SCRIPT PROGRAM. TEXT LINES ARE
SENT OVER THE PSEUDO TELETYPE TO RUN THE OBJECT JOBS.
5.2 TEXT LINES
A COMMAND LINE BEGINS WITH ONE EXCLAMATION POINT WHICH IS
FOLLOWED BY A NON-EXCLAMATION POINT CHARACTER.
A TEXT LINE BEGINS WITH NO EXCLAMATION POINT, OR WITH TWO
EXCLAMATION POINTS. IN THIS CASE, ONLY THE SECOND IS SENT
TO THE OBJECT JOB. IF A SCRIPT LINE BEGINS WITH ONE
UP-ARROW, THEN THE UP-ARROW IS NOT SENT; INSTEAD THE NEXT
CHARACTER IS CONVERTED TO A CONTROL CHARACTER BY
COMPLEMENTING BIT 100. TWO UP-ARROWS RESULT IN ONE UP-ARROW
BEING SENT. (THE CR/LF AT THE END OF ANY LINE STARTING WITH
A SINGLE UP-ARROW ARE NOT SENT.)
NOTE THAT "!" AND "^" HAVE NO SIGNIFICANCE EXCEPT AT THE
BEGINNING OF A TEXT OR COMMAND LINE.
5.3 COMMAND LINE SYNTAX
COMMAND LINES CONSIST OF NUMBERS AND LETTER SWITCHES.
SWITCHES THAT TAKE NUMERICAL VALUES MAY BE PRECEEDED BY A
NUMBER. A NUMBER CONSISTS OF POSSIBLY ONE MINUS SIGN
FOLLOWED BY A STRING OF DECIMAL DIGITS. THERE CAN BE NO
SPACES OR TABS BETWEEN THE START AND END OF A NUMBER. AT
OTHER POINTS, SPACES AND TABS ARE IGNORED IN COMMAND LINES.
SHOULD A NUMBER NOT BE SPECIFIED, THE LAST NUMBER SUPPLIED
IS ASSUMED. IF NO VALUE HAS BEEN SUPPLIED, A ZERO IS
ASSUMED AT THE START OF EACH COMMAND LINE.
CERTAIN LETTER SWITCHES MAY NOT HAVE NUMBERS ASSOCIATED WITH
THEM. THESE SWITCHES MAY NOT BE PRECEEDED BY A NUMBER
UNLESS THERE IS AN INTERVENING LETTER SWITCH THAT ALLOWS A
NUMBER.
ILLEGAL CHARACTERS OR BAD SYNTAX RESULT IN AN ERROR WHEN
PROCESSING JOBS. THESE ERRORS ARE NOT DETECTED WHEN THE
SCRIPT IS LOADED INTO THE HIGH SEGMENT.
SCRIPT 25 JULY 70 100-180-003-01 Page 9
FORMAT OF SCRIPT FILES
A COMMAND LINE MAY INCLUDE A COMMENT BY USING A SEMICOLON.
A DOUBLE SEMICOLON AND ANY CHARACTERS REMAINING ON THE
COMMAND LINE ARE DELETED WHEN THE SCRIPT IS LOADED AND SO
USE NO CORE AT RUN-TIME. THE FIRST 6 CHARACTERS FOLLOWING
THE FIRST PERCENT SIGN OF THE DOUBLE SEMICOLON COMMENT OF
THE FIRST SCRIPT LINE (IF ANY) ARE TAKEN AS THE SCRIPT'S
VERSION NUMBER (USUALLY "%NNN").
A COMMAND LINE MUST NOT END WITH A NUMBER. THUS A LETTER
SWITCH MUST FOLLOW ANY NUMBER IN A COMMAND LINE.
5.4 LETTER SWITCHES
I IF NON-NEGATIVE ARGUMENT SUPPLIED -- SETS TYPE-IN
DELAY
IF NEGATIVE ARGUMENT SUPPLIED -- SETS TYPE-IN
RATE.
O SAME AS I EXCEPT THAT IT SETS TYPE-OUT RATE.
R IF NON-NEGATIVE ARGUMENT SUPPLIED -- SETS ALLOWED
RESPONSE TIME
F IF NON-NEGATIVE ARGUMENT SUPPLIED -- SETS FREE TIME
S IF NON-NEGATIVE ARGUMENT SUPPLIED -- SETS STAGGER TIME
T IF POSITIVE ARGUMENT SUPPLIED -- SETS NUMBER OF
TIMES TO DO SCRIPT.
C IF A POSITIVE ARGUMENT SUPPLIED -- SETS MAXIMUM
DELAY BEFORE PROGRAM
SENDS ^C^C
IF ZERO ARGUMENT SUPPLIED -- INHIBITS SENDING
^C^C TIME-OUT
L NO ARGUMENTS ALLOWED -- SETS L MODE FLAG
N NO ARGUMENTS ALLOWED -- CLEARS L MODE
FLAG
U NO ARGUMENTS ALLOWED -- SETS U MODE FLAG
V NO ARGUMENTS ALLOWED -- CLEARS U MODE
FLAG
Q IF POSITIVE ARGUMENT SUPPLIED -- SETS NUMBER OF
EXPECTED ERRORS
IF ZERO ARGUMENT SUPPLIED -- INHIBITS ERROR
CHECKING
(APPLIES FOR NEXT LINE ONLY)
X NO ARGUMENTS ALLOWED -- REST OF LINE IS
SCRIPT 25 JULY 70 100-180-003-01 Page 10
FORMAT OF SCRIPT FILES
COMMENT TO OPERATOR
5.5 TIMING UNITS
TIMES ARE IN MILLISECONDS. RATES ARE IN MILLISECONDS PER
CHARACTER.
5.6 L MODE
WHEN L MODE IS SET <CR> AND <LF> WILL NOT BE SENT OVER THE
PTY. THUS A LINE ENDING WITH <ALTMODE> CAN BE SENT. ANY
LINE MUST END HOWEVER WITH A FULL CHARACTER SET BREAK
CHARACTER DUE TO A LIMITATION IN THE PTY.
5.7 U MODE.
WHEN SET U MODE CONVERTS "#" IN TEXT LINES INTO A STRING OF
TWO OCTAL DIGITS EQUAL TO THE PTY UNIT NUMBER. (LEADING
ZEROS WILL BE INCLUDED.) ALL DEC SCRIPTS USE THIS FEATURE
TO LOG IN THE JOB UNDER PPN 4,77700 THROUGH 4,77777 (I.E.,
4,777#).
5.8 INITIAL VALUES.
AT THE START OF EACH PASS OVER A SCRIPT, THE FOLLOWING
PARAMETERS ARE SET UP. ALL REMAINING QUANTITIES ARE SET TO
ZERO.
TYPE IN RATE .3 SEC/CHAR
TYPE OUT RATE .1 SEC/CHAR
ALLOWED RESPONSE TIME 10 SEC
FREE TIME 7 SEC
STAGGER TIME 20 SEC/JOB
REPEAT COUNT 1 PASS
U MODE ON, L MODE OFF
SCRIPT 25 JULY 70 100-180-003-01 Page 11
FORMAT OF SCRIPT FILES
5.9 SAMPLE SCRIPT
!;;SAMPLE SCRIPT/PFC 25 JULY 1970 IDENTIFY SCRIPT
LOGIN START LOGIN
4,777# USE 4,77700+
XXXX# PASSWORD
!XIN TELL OPERATOR
DEL *.* CLEAR DIRECTORY
MA FOO.F4
TYPE 1
1 FORMAT (' HI')
END
!L TERMINATE
$EX$$
!N
EXECUTE FOO
KJOB START LOGOUT
K KILL FILES
!XOUT TELL OPERATOR
SCRIPT 25 JULY 70 100-180-003-01 Page 12
OPERATING INSTRUCTIONS
6.0 OPERATING INSTRUCTIONS
6.1
BUILD A TIME-SHARING SYSTEM WITH SUFFICIENT JOBS AND
PSEUDO-TELETYPES. ONE CONTROL JOB WILL BE NEEDED FOR EACH
14 JOBS FOLLOWING THE SCRIPT.
6.2
CREATE AN APPROPRIATE SCRIPT.
6.3
START THE SCRIPT PROGRAM.
6.4
IT WILL TYPE OUT THE NAME OF THE CURRENTLY LOADED SCRIPT.
IF THE SEGMENT IS SHARABLE, IT WILL GO TO STEP 6.10.
6.5
IF THE SEGMENT IS NOT SHARABLE, IT ASKS "WHERE TO LOAD A
SCRIPT?". TYPE THE DEVICE, FILE NAME, EXTENSION, AND
DIRECTORY. IF ARGUMENTS ARE NOT SUPPLIED, THEY DEFAULT TO
DSK:.SCP
6.6
THE PROGRAM WILL RESPOND WITH "NAME LOADED XX LINES" AND
RETURN TO MONITOR COMMAND LEVEL. IF THERE WERE ERRORS IT
WILL ASK INSTEAD IF A SCRIPT IS TO BE LOADED. GO BACK TO
STEP 6.5.
6.7
IF THE SCRIPT IS NOT GOING TO BE SHARED TYPE "CONT" AND GO
TO STEP 6.10.
6.8
SAVE THE LOADED SCRIPT WITH A SSAVE COMMAND. EXAMPLE:
"SSAVE DSK:FOO<CR>".
6.9
START N COPIES OF THE PROGRAM BY LOGGING IN N JOBS AND
GIVING THE COMMAND "RUN DSK SCRIPT" OR WHAT EVER IS NEEDED
TO LOAD THE SAVED VERSION FROM STEP 6.8. THE INSTRUCTIONS
IN THE REMAINING STEPS SHOULD BE FOLLOWED FOR EACH OF THE N
JOBS.
SCRIPT 25 JULY 70 100-180-003-01 Page 13
OPERATING INSTRUCTIONS
6.10
THE PROGRAM WILL NOW ASK HOW MANY JOBS ARE TO BE RUN. ENTER
THE NUMBER FOR EACH CONTROL JOB ON ITS TTY. THE MAXMIMUM
NUMBER IS 14 JOBS PER CONTROL JOB. EACH OBJECT JOB NEEDS A
PTY.
6.11
SHOULD THERE BE TOO FEW PTYS, THEN THE SCRIPT PROGRAM WILL
RELEASE ALL GOTTEN SO FAR AND ASK OVER AGAIN HOW MANY JOBS
ARE TO BE RUN.
6.12
THE FIRST 1-14 JOBS RUN BY A GIVEN SCRIPT JOB CAN BE
MONITORED ON ANY DEVICE. THIS IS USEFUL FOR DEBUGGING A NEW
SCRIPT. ANSWER THE QUESTION "WATCH HOW MANY JOBS?"
APPROPRIATELY. A NULL RESPONSE (JUST <CR>) WILL RESULT IN
ALL JOBS BEING MONITORED. IF YOU ANSWER WITH A NUMBER MORE
THAN 0, IT WILL ASK "WHERE". RESPOND WITH DEVICE, FILE
NAME, EXTENSION, AND DIRECTORY. THE DEFAULTS ARE DSK:.WCH.
SHOULD THE DEVICE BE UNAVAILABLE, OR THE FILE UNENTERABLE,
AN ERROR MESSAGE WILL APPEAR ON THE TELETYPE AND THE
QUESTION WILL BE ASKED AGAIN.
SHOULD AN ERROR OCCUR ON THE DEVICE WHILE RUNNING, THE RUN
WILL NOT BE SUSPENDED. HOWEVER, SUBSEQUENT MONITORING WILL
BE INHIBITED. IF MORE THAN ONE JOB IS BEING MONITORED, EACH
LINE IS PRECEEDED BY THE PROCESS NUMBER (01-14, DECIMAL).
EXCEPT ON A TELETYPE MONITOR, EACH LINE WILL BE INDENTED 2*I
SPACES.
6.13
IF THE SCRIPT CALLS FOR FASTER OUTPUT THAN THE DEVICE CAN
HANDLE, THEN THE SCRIPT JOB WILL GO INTO I/O WAIT. THIS
WILL RESULT IN VERY LONG DELAY TIMES ATTRIBUTED TO THE
SCRIPT PROGRAM. THIS CONDITION SHOULD BE AVOIDED BY
CHANGING THE SCRIPT PARAMETERS, USING A FASTER DEVICE OR NOT
MONITORING AT ALL.
6.14
THE PROGRAM WILL NOW ASK, "WHERE TO LOG RESPONSE TIMES?"
ANSWER WITH A DEVICE, FILE NAME, EXTENSION, AND DIRECTORY.
ARGUMENTS NOT SUPPLIED WILL DEFAULT TO DSK:.RSP. A NULL
RESPONSE (JUST <CR>) WILL RESULT IN NO RESPONSES BEING
LOGGED.
SCRIPT 25 JULY 70 100-180-003-01 Page 14
OPERATING INSTRUCTIONS
IF THE DEVICE IS NOT AVAILABLE, OR IF THE FILE CAN NOT BE
ENTERED, GO BACK TO STEP 6.14.
SHOULD A DATA ERROR OCCUR WHILE RUNNING, THE RUN WILL
PROCEED WITH SUBSEQUENT RESPONSE LOGGING INHIBITED. AN
ERROR MESSAGE WILL APPEAR ON THE TELETYPE.
6.15
SCRIPT ASKS "REPEAT COUNT = ". TYPE A DECIMAL NUMBER. IF
ZERO OR NULL, THE REPEAT COUNT IN THE SCRIPT WILL BE USED.
6.16
SCRIPT ASKS "DELAY FACTOR = ". TYPE A DECIMAL NUMBER. THIS
MULTIPLIES ALL THE DELAY TIMES. IF 1 OR NULL (JUST <CR>),
THE SCRIPT IS TAKEN LITERALLY, IF 0, DELAYS ARE IGNORED.
6.17
SCRIPT ASKS "STAGGER TIME = ". TYPE A DECIMAL NUMBER. IF
NULL, THE VALUE IN THE SCRIPT WILL BE USED. IF 0, NO
STAGGERING WILL APPLY. IF NON-ZERO, THE VALUE TYPED IN WILL
BE TAKEN (IN SECONDS).
6.18
SCRIPT ASKS "SEE COMMENTS TO OPERATOR? ". TYPE YES OR NO.
IF YES, ALL X SCRIPT COMMANDS WILL BE TYPED AS PROCESSED
PREFIXED BY THE PROCESS NUMBER (1-14) IN DECIMAL WITHIN
PARENTHESIS.
6.19
IF SCRIPT WAS ASSEMBLED WITH THE DEBUG SWITCH ON (THE NORMAL
CASE), IT WILL ASK "DEBUG? ". ANSWER YES OR NO. IF YOU
ANSWER YES, THEN SCRIPT WILL OPERATE IN DEBUG MODE. THIS
WILL ADD TO THE MONITOR FILE (UNDER MONITORS WITH THE IMAGE
MODE SCANNER SERVICE) THE JOB STATUS EACH TIME IT IS NOTICED
TO BE DIFFERENT. THE OUTPUT WILL BE IN THE FORM "[\NN\]"
WHERE NN IS THE HIGH ORDER SIX BITS RETURNED BY THE JOBSTS
UUO. THESE BITS ARE AS FOLLOWS:
40 JOB NUMBER ASSIGNED
20 JOB COMPLETED LOGIN, NOT STARTED LOGOUT
10 TTY AT MONITOR LEVEL
04 TTY OUTPUT AVAILABLE
02 TTY IN NEED OF INPUT TO DO ANYTHING
01 CONTROL C DEFEATED
SCRIPT 25 JULY 70 100-180-003-01 Page 15
OPERATING INSTRUCTIONS
6.20
SCRIPT ASKS "WATCH FOR ERRORS?". TYPE YES OR NO. IF YES,
ALL PTY OUTPUT FOR ALL THE JOBS WILL BE MONITORED FOR "?"
LINES. UNLESS THE SCRIPT HAS PREDICTED ERRORS, ALL SUCH
LINES WILL BE TYPED ON THE TELETYPE PREFIXED BY THE PROCESS
NUMBER (1-14) IN DECIMAL WITHIN PARENTHESES AND FOLLOWED BY
TWO BELLS.
6.21
SCRIPT WILL SAY "STARTING". JOBS UNDER CONTROL OF A GIVEN
CONTROL PROGRAM WILL BE STAGGERED BY THE INTERVAL SPECIFIED
BY THE OPERATOR OR IN THE SCRIPT. IF MULTIPLE SCRIPT JOBS
ARE RUNNING, THE USER CAN STAGGER THEIR TIMING BY ENDING
STEP 6.20 AT THE APPROPRIATE TIME OF DAY.
6.22
WHEN THE LAST JOB UNDER A GIVEN SCRIPT PROGRAM HAS FINISHED,
THE MESSAGE "ALL JOBS DONE" WILL APPEAR ON THE USERS
TELETYPE AND THE LOG FILE AND MONITOR FILE WILL BE CLOSED.
THE PROGRAM WILL THEN EXIT.
6.23
SHOULD IT BE NECESSARY TO TERMINATE A RUN, STOP THE CONTROL
PROGRAM BY TYPING TWO <CONTROL C> CHARACTERS. TO CLOSE OUT
THE LOG FILE REENTER THE PROGRAM BY A REENTER COMMAND. A
MESSAGE "JOBS ABORTED" WILL APPEAR ON THE TELETYPE, AND ALL
JOBS WILL BE KJOBBED.
6.24
THE FORTRAN PROGRAM TOTAL CAN BE USED TO SUMMARIZE THE
RESPONSE LOG FILE. IT TAKES INPUT FROM 1:FOR01.DAT AND
PLACES A SHORT LISTING ON 6:FOR06.DAT.
SCRIPT 25 JULY 70 100-180-003-01 Page 16
OPERATING INSTRUCTIONS
6.25 SAMPLE DIALOGUE
R SCRIPT GET SCRIPT
NO SCRIPT LOADED
WHERE TO LOAD A SCRIPT? SYS:DELALL NAME OF SCRIPT
DELALL.SCP%002 LOADED 15 LINES
.SS DSK:DELALL SAVE SO CAN SHARE
JOB SAVED
^C
.RU DSK:DELALL GET SHARABLE COPY
SCRIPT DELALL.SCP%002 LOADED
HOW MANY JOBS TO BE RUN? 14 MAX NUMBER
WATCH HOW MANY JOBS? DO ALL
WHERE? DEL1 USE DSK:DEL1.WCH
WHERE TO LOG RESPONSE TIMES? DEL1 USE DSK:DEL1.RSP
REPEAT COUNT = USE SCRIPT VALUE
DELAY FACTOR = USE SCRIPT VALUE
STAGGER TIME = USE SCRIPT VALUE
SEE COMMENTS TO OPERATOR? Y WATCH PROGRESS
DEBUG? N NOT USUALLY NEEDED
WATCH FOR ERRORS? Y A GOOD IDEA
STARTING
(1) IN JOB 1 LOGGED IN
(2) IN JOB 2 LOGGED IN
...
(13) OUT JOB 13 LOGGED OUT
(14) OUT JOB 14 LOGGED OUT
ALL JOBS DONE IT HAS FINISHED
EXIT
^C
.