TPDC Manual (G06.24+)

Using the Collected Data
Tandem Performance Data Collector (TPDC) Manual—526357-001
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Running the SPAM TACL Macros
Values are from 0 to 999 minutes. The default value is 0, which causes the
reports to compute the interval size such that the entire window (or BEGIN time
to end of window) is shown. Example:
INTERVAL 5, BEGIN 08:30
IOFACTOR physIO:cache-hit-CPU-cost-ratio
specifies how much more CPU cost a physical I/O (driver call minus cache hit)
incurs than a cache hit. Use this option with reports that attempt to apportion
Disc Process CPU time to the files or partitions accessed or to the programs
accessing the files or partitions.
Values are from 0.0 to 99.9. The default value is 2.0 (the same default used by
the Tandem Capacity Model (TCM) program). Example:
IOFACTOR 2.5
MINMSGS minimum-messages-received
specifies the minimum number of messages a process must receive in order
for PGOVIEW and PROFILE to show program resource consumptions and
wait times per message received. If the average number of messages received
by processes run from a given program file is below MINMSGS, the PGOVIEW
chart and PROFILE report instead show program resource consumptions and
wait times per second of the average lifetime of one of these processes.
Values are from 1 to 9999. The default value is 10. Example:
MINMSGS 15
NEEDLE access-selectivity-percentage
specifies the selectivity threshold. The unit of measure is records used as a
percentage of records accessed. This option is used with the HAYSTCK report,
which is intended to show openers of files (SQL/MP tables) whose accesses
exhibit low selectivity; that is, relatively small values for the records-used to
records-accessed ratio.
Values are from 0.0001 to 99.9999 percent. The default value is 1.0000
percent (one record used for every one hundred records accessed). HAYSTCK
shows only opens that exhibit a selectivity equal to or less than this
percentage. Example:
NEEDLE 0.0001 (one in a million)
PROGRAM partial-name
specifies a partial name of one or more programs, enabling you to examine the
activity against a particular program or set of programs for some reports, such
as PROFILE and PROGLIO. The partial name can be any contiguous string of