HP 3000 Manuals

HP Performance Collection Software User's Manual (for MPE Systems)

WAIT THRESHOLD 

               [CPU=percent   ]
WAIT THRESHOLD [DISC=percent  ]
               [MEMORY=percent]
               [IMPEDE=percent]
where percent indicates the portion of the 1-minute sample interval
during which the process was waiting.

The default for WAIT THRESHOLD is the following:

     WAIT THRESHOLD CPU=50, DISC=50, MEMORY=25, IMPEDE=25

The WAIT THRESHOLD directive sets the time a process must wait for a
certain resource before becoming interesting and being logged.

Do not confuse the parameters of the WAIT THRESHOLD directive with those
of the THRESHOLD directive since many of them are similar.  THRESHOLD
parameters set the amount of a given resource that a process must use in
order to be logged.  WAIT THRESHOLD parameters set the length of time a
process must wait for a resource in order to be logged.  WAIT THRESHOLD
parameter values are expressed as the percentage of time during the
1-minute sample interval that the process waited for the resource.
Percent values can range between 1.0 and 100.0 percent.

CPU=percent 

This parameter sets how long a process must wait for access to the CPU
before becoming interesting and being logged.  It is only used if process
logging is enabled.

For example, WAIT CPU=10.5 indicates a process will be logged if it must
wait for access to the CPU for more than 10.5 percent of a 1-minute
sample interval.

DISC=percent 

This parameter sets how long a process must wait for data transfer to or
from a disc drive before becoming interesting and being logged.

For example, WAIT DISC=50 indicates a process will be logged if it must
wait for disc for more than half (50 percent) of the 1-minute sample
interval.

MEMORY=percent 

This parameter sets how long a process must wait for code or data to be
brought into main memory before becoming interesting and being logged.

IMPEDE=percent 

This parameter sets how long a process must wait in the IMPEDE state
during the 1-minute sample interval before becoming interesting and being
logged.

The IMPEDE state is a software synchronization mechanism and can be used
for many situations, such as synchronizing access to the HP TurboINMAGE
databases.

MPE/iX 5.0 Documentation