Measure Reference Manual

ENDING-UCL-LOCK
(Legacy Style only) No longer used.
ENDING-UDS
(Legacy Style only) Number of user process data segment frames allocated in physical memory at
the end of the measurement interval. With SPRs to T9050G05 and later PVUs, ENDING-UDS
frames are included in the ENDING-UCL counter.
Counter type: Snapshot.
ENDING-UDS-LOCK
(Legacy Style only) No longer used.
MEM-QLEN-MAX
(Legacy style only) Maximum number of items on the queue described by the MEM-QTIME counter.
In Measure G05 and later PVUs, zero. In earlier PVUs, the maximum number of queued page
faults since the processor was loaded.
Counter type: Max queue.
MEM-QTIME
(Legacy Style only) Amount of CPU time that processes in the measured processor spent waiting
on page faults. (A page fault does not cause the system to remove the process from the ready list.)
In Measure G05 and later PVUs, the activity measured by this counter changed somewhat because
of changes in memory handling. In earlier G-series RVUs (and all D-series RVUs), page-fault requests
were handled by the memory manager ($VIRTUAL). Concurrent requests had to queue for processing.
In Measure G05 and later PVUs, the handling of page-faulting is a system library function. No
queueing occurs because multiple requests are processed concurrently. As a result, MEM-QTIME
is always zero.
PageFunctionRelated Counter
167Measures the time all processes spent on the ready
list, including time spent waiting on page faults
CPU-QTIME
174Measures the time a process spent waiting on page
faults
PROCESS MEM-QTIME
305Counts the number of page faults generated by a
process
PROCESS PAGE-FAULTS
Counter type: Queue.
SEND-BUSY-TIME
(Legacy Style only) In D-series RVUs, time that the CPU spent sending data to other CPUs; that is,
the time spent executing SEND instructions. This counter partially overlaps the INTR-BUSY-TIME
counter.
In G-series RVUs, no longer used.
Counter type: Busy.
STARTING-SCL-LOCK
(Legacy Style only) No longer used.
174 Entities and Counters