GPA Manual for G-series RVUs

Guardian Performance Analyzer (GPA) Manual – (544977-001) Page 35 of 106
(6)
DYNAMIC PCBS: The number of dynamic process control blocks on
the node. This figure represents processes that were started and
stopped during the measurement period analyzed by GPA. (These
processes are also known as transients).
(7)
OUT OF BALANCE CPU COUNT: The number of processors on the
node that GPA has found to be relatively over- or underutilized,
hence out of balance.
(8)
MOST BUSY CPU: The most utilized processor on the node, that is,
the one with the highest percentage busy time.
(9)
LEAST BUSY CPU: The least utilized processor on the node.
(10)
AVG CPU BUSY: The average percentage busy time of all
processors on the node. The maximum value expected is the
recommended target utilization for this type of processor.
(11)
AVG DISK VOLUME BUSY: The average percentage busy time of
all disk volumes on the node.
(12)
AVG DISK PROCESS BUSY: The average of the percentage busy
times of all disk processes running on the node.
(13)
% - RECOMMENDED RESOURCES: The extent to which the node
is being utilized in relation to the maximum recommended (100
percent) level. The value for this parameter is derived by dividing the
AVG CPU BUSY time (Item 10 above) by the maximum
recommended utilization level. For most CPUs, the maximum
recommended utilization level is 60 to 75 percent busy, depending on
the CPU type.
(14)
NODE SWAP RATE: The total number of page swaps per second
for all of the processors on the node. Each page swap represents a
page (2048 bytes) of data or code that a processor is forced to
transfer from disk to memory. GPA considers a node swap rate
greater than 1 to be excessive and indicates on this line the cause for
such a condition (memory shortage or load imbalance).
Disk Volume Performance
This subsection of the report (Example 3-2) is a table that indicates the extremes in
disk volume performance for the node. The format is such that the differences in high
and low values can easily be seen as an indication of system performance.