Required memory sizes for the Observe program
[Content revised from the 8th edition]
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Date of Revision |
Description |
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March 5, 2024 |
Added as new section |
This section explains how to calculate the required memory sizes for the HULFT Observe program.
The calculation formula differs depending on the storage area where the code conversion table is loaded.
The storage area where the code conversion table is loaded is specified in Storage for Code Conversion Table (CODE-CONVERSION-LOCATION) in the System Environment Settings file ((HULFT.PARMLIB(HULPRM)).
For details, refer to Administration Manual.
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The calculations shown here are intended to serve as a guide. Calculated memory sizes and the actual memory sizes may differ depending on the system environment in use.
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For the Observe program, the values in the formulas for Send Request assume that Work File Transfer is specified for the transfer mode.
(1) When loading the code conversion table into a "31-bit storage area"
Use the formulas shown below to calculate the required memory sizes for the Observe program (unit: KB).
Formula for the below-the-line storage
Required memory size for the Observe program in the below-the-line storage = a + b
Formula for the above-the-line storage
Required memory size for the Observe program in the above-the-line storage = c + d
The below tables show the calculations for the substituted values.
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Below-the-line storage |
Remarks |
|---|---|---|---|
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a |
Startup |
204KB |
Fixed value |
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b
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Send Request |
(Number of Observe processing instances executed simultaneously x 56KB) + 80KB |
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Resend Request |
(Number of Observe processing instances executed simultaneously x 12KB) + 56KB |
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Remote Job Execution |
(Number of Observe processing instances executed simultaneously x 32KB) + 92KB |
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Manager Connection |
(Number of Observe processing instances executed simultaneously x 28KB) + 96KB |
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Above-the-line storage |
Remarks |
|---|---|---|---|
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c |
Startup |
2,872KB |
Fixed value |
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d
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Send Request |
(Number of Observe processing instances executed simultaneously x 1,088KB) + 1,320KB |
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Resend Request |
(Number of Observe processing instances executed simultaneously x 312KB) + 646KB |
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Remote Job Execution |
(Number of Observe processing instances executed simultaneously x 640KB) + 584KB |
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Manager Connection |
(Number of Observe processing instances executed simultaneously x 4,100KB) + 1,470KB |
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Calculation example 1
If the calculation is for Send Request and the number of Observe processing instances executed simultaneously is "4", calculate the required memory sizes for the Observe program as shown below.
- Required memory size for the Observe program (below-the-line storage)
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a: 204KB
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b: ((4 x 56) + 80)KB
- Required memory size for the Observe program (above-the-line storage)
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c: 2,872KB
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d: ((4 x 1,088) + 1,320)KB
The above calculations result in the following required memory sizes for the Observe program:
Required memory size in the below-the-line storage: a + b = 508KB
Required memory size in the above-the-line storage: c + d = 8,544KB
Calculation example 2
If the calculation is for Manager Connection and the number of Observe processing instances executed simultaneously is "3", calculate the required memory sizes for the Observe program as shown below.
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Required memory size for the Observe program (below-the-line storage)
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a: 204KB
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b: ((3 x 28) + 96)KB
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Required memory size for the Observe program (above-the-line storage)
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c: 2,872KB
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d: ((3 x 4,100) + 1,470)KB
The above calculations result in the following required memory sizes for the Observe program:
Required memory size in the below-the-line storage: a + b = 384KB
Required memory size in the above-the-line storage: c + d = 16,642KB
(2) When loading the code conversion table into a "64-bit storage area"
Use the formulas shown below to calculate the required memory sizes for the Observe program (unit: KB).
Formula for the below-the-line storage
Required memory size for the Observe program in the below-the-line storage = a + b
Formula for the above-the-line storage
Required memory size for the Observe program in the above-the-line storage = c + d
The below tables show the calculations for the substituted values.
|
|
|
Below-the-line storage |
Remarks |
|---|---|---|---|
|
a |
Startup |
204KB |
Fixed value |
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b
|
Send Request |
(Number of Observe processing instances executed simultaneously x 56KB) + 80KB |
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|
Resend Request |
(Number of Observe processing instances executed simultaneously x 12KB) + 56KB |
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Remote Job Execution |
(Number of Observe processing instances executed simultaneously x 32KB) + 92KB |
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Manager Connection |
(Number of Observe processing instances executed simultaneously x 28KB) + 96KB |
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Above-the-line storage |
Remarks |
|---|---|---|---|
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c |
Startup |
2,096KB |
Fixed value |
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d
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Send Request |
(Number of Observe processing instances executed simultaneously x 1,088KB) + 1,240KB |
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Resend Request |
(Number of Observe processing instances executed simultaneously x 312KB) + 646KB |
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Remote Job Execution |
(Number of Observe processing instances executed simultaneously x 640KB) + 584KB |
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|
|
Manager Connection |
(Number of Observe processing instances executed simultaneously x 4,100KB) + 1,470KB |
|
Calculation example 1
If the calculation is for Send Request and the number of Observe processing instances executed simultaneously is "4", calculate the required memory sizes for the Observe program as shown below.
- Required memory size for the Observe program (below-the-line storage)
-
-
a: 204KB
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b: ((4 x 56) + 80)KB
- Required memory size for the Observe program (above-the-line storage)
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c: 2,096KB
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d: ((4 x 1,088) + 1,240)KB
The above calculations result in the following required memory sizes for the Observe program:
Required memory size in the below-the-line storage: a + b = 508KB
Required memory size in the above-the-line storage: c + d = 7,688KB
Calculation example 2
If the calculation is for Manager Connection and the number of Observe processing instances executed simultaneously is "3", calculate the required memory sizes for the Observe program as shown below.
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Required memory size for the Observe program (below-the-line storage)
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a: 204KB
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b: ((3 x 28) + 96)KB
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Required memory size for the Observe program (above-the-line storage)
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c: 2,096KB
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d: ((3 x 4,100) + 1,470)KB
The above calculations result in the following required memory sizes for the Observe program:
Required memory size in the below-the-line storage: a + b = 384KB
Required memory size in the above-the-line storage: c + d = 15,866KB