Pathway/iTS System Management Manual (G06.24+)

Tuning Your System Using Statistics
HP NonStop Pathway/iTS System Management Manual—426748-002
5-13
AREA INFO
SIZE
For the code area, SIZE indicates the total number of bytes allocated for all
SCREEN COBOL code. You define this value with the SET TCP CODEAREALEN
command.
The value you specify depends on the number and the size of the screen programs in
your applications. The code area should be large enough to hold all of the SCREEN
COBOL code. (Sizes of 2 MB and larger are not unusual.)
Two possible methods for estimating code area are:
•
You can estimate a value by using the size of the SCREEN COBOL programs (the
screen data plus the RUNUNIT SIZE listed for these programs compiled with MAP)
that make up the applications for this TCP. Note that RUNUNIT SIZE does not
include base and overlay screens.
Not all of the screen programs are executed all of the time; the most regularly used
programs determine the amount of code space most often required.
•
You can specify a value larger than required (choose a large size, such as three or
four megabytes).
Table 5-2. TCP Statistics for AREA INFO
Statistic For CODE, Indicates For DATA, Indicates
SIZE Total number of bytes allocated to the
code area for all SCREEN COBOL
object code
Total size of all slots for all
terminal tasks
REQ CNT Number of requests for defined code
segments
N.A.
MAX ALLOC Largest number of bytes allocated from
the code area at any given time
Largest number of bytes used in
the data area at one time by all
terminals
AVG ALLOC Average number of bytes allocated
from the code area at one time
N.A.
CUR ALLOC Current number of bytes allocated from
the code area
Current number of bytes used in
the data area by all of the active
terminals
MAX REQ Largest number of bytes requested for
SCREEN COBOL code space
N.A.
AVG REQ Average number of bytes requested for
SCREEN COBOL code space
N.A.
% ABSENT Percentage of the code segments that
are not in the code area at the time the
TCP is ready to execute a terminal task
N.A.