This line identifies the DDNAME of a file for which delays due to wait for I/O completion were observed.
Under Heading | This is Displayed |
---|---|
Description | The volume ID (VOLSER) for the DDNAME. For a multivolume data set, the first volume is displayed. |
Percent of Time | The percentage of the measurement interval time the step was waiting for completion of I/O for the indicated DDNAME. |
This line identifies the file request macro that caused a wait for I/O completion.
Under Heading | This is Displayed |
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Name | The DASD I/O macro function (GET, PUT, CHECK, etc.) that caused the wait. |
Description | The address of the macro (return address) in CSECT+offset format. |
Percent of Time | The percentage of the measurement interval time the step was waiting for completion of I/O for the indicated macro. |
This line identifies the data management load module in which the wait occurred.
Under Heading | This is Displayed |
---|---|
Name | Name of load module in which WAIT request was issued. |
Description | Functional description of the load module if one is available. |
Percent of Time | The percentage of the measurement interval time the step was waiting for completion of I/O. |
This line identifies the CSECT in the data management load module in which the wait occurred.
Under Heading | This is Displayed |
---|---|
Name | Name of CSECT in which WAIT request was issued. |
Description | Functional description of the CSECT if one is available. |
Percent of Time | The percentage of the measurement interval time the step was waiting for completion of I/O. |
This line identifies an SVC (Supervisor Call) that issued the wait.
Under Heading | This is Displayed |
---|---|
Name | Name of SVC (Supervisor Call) in which WAIT request was issued. |
Description | Functional description of the SVC. |
Percent of Time | The percentage of the measurement interval time the step was waiting for completion of I/O. |
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