IUCV Statistics

The Entire Net-Work IUCV driver issues API calls to communicate with CP. To help tune each link and the driver itself, the IUCV driver provides the statistics shown below. The statistics for a link and the driver are identical, with the exception of the title line (a).

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This multiple line display is produced when the command IUCV xxxx STATS is issued, or when the automatic statistics interval expires and PSTATS=Y is specified in the LINK statement. Values are displayed and updated asynchronously; therefore, the totals displayed may not always be accurate. The contents are as follows:

Line Shows the . . .
a name of the link or driver, its state (e.g., active or inactive), and the length of time since statistics were last reset or the link was last connected. Length of time is displayed in hours:minutes:seconds format and in seconds:milliseconds.
b cumulative number of bytes and messages written, and the cumulative number of API calls.
c average number of bytes and messages written, and the average number of read API calls per second.
d cumulative number of bytes and messages read, and the cumulative number of read API calls.
e average number of bytes and messages read, and the average number of read API calls per second.