TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

GETTAB TABLES
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%CVRNX
%CVRHX
%CVRLX
%CVRSC*
%CVRNC
%CVRHC
%CVRLC
%CVNRI
%CVNXI
%CVNEI
========================================================
Number of responses reflected in %CVRSX
=======================================================
High-sum square of responses in %CVRNX
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Low-sum square of responses in %CVRNX
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Sum of CPU responses
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Number of CPU responses
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High-sum square of CPU responses
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Low-Sum Square of CPU Responses
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Obsolete
==============================================:=========
Number of characters received
=======================================================
Number of characters sent
==============================================:=========
Number of characters echoed
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The Responses Subtable contains information concerning
times calculated for user jobs, on a per-CPU basis.
subtable is made up of blocks of four words each. Each
information pertaining to a type of response that is
following format is used for each block:
the response
The responses
block contains
measured.' The
Word 1:
Word 2:
Sum of responses, where response time is measured in
ticks
Number of responses
Words 3 - 4:
A double-word integer containing the sum of squares
response times.
of
%CVRSI is the input response time. This value is increased every time
a job runs a program whose first event (of those measured and stored
in %CVRSI, %CVRSO, and %CVRSR) is a terminal input operation. Note
that the input response time is calculated only once for this program,
the first time it does input from the terminal, and is measured from
the time that the monitor receives the command to run the program, to
the time the program does its first terminal input UUo.
%CVRSO is the output response time and is similar to the input
response time. Only the first terminal output done by the program is
calculated and added to this word.
%CVRSR is the quantum requeue response time. This time is measured
for compute-bound jobs (jobs that finish a CPU quantum without
performing a terminal input or output operation), and measures the
amount of time from the time the monitor receives the command to run
the program, to the time the program must be rescheduled for more CPU
time. Again, this time is calculated only once for each program
execution.
%CVRSX is the response time for the first of the above three events to
occur for the job. If a program does an input operation before an
output and before a quantum expires, the input response time (also
calculated in %CVRSI) is stored in %CVRSX. If a second job runs a
program that does an output operation first, the response time for the
output is stored in %CVRSO and added to %CVRSX.
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