Pathway/iTS System Management Manual (G06.24+)

Tuning Your System Using Statistics
HP NonStop Pathway/iTS System Management Manual—426748-002
5-17
Terminal Statistics
TERMPOOL and SERVERPOOL
For TERMPOOL and SERVERPOOL, % WAIT indicates the percentage of requests
for buffer space that waited in the queue.
A nonzero value indicates that some task had to wait until sufficient space was
available. For information about sizing TERMPOOL and TERMBUF, see POOL INFO
on page 5-8 in this section.
LINK
For LINK, %WAIT indicates the percentage of requests for a link that waited in the
queue:
•
A nonzero value indicates that some of the transactions had to wait for a link to
become available.
This number, however, does not indicate the count of requests for a link to the
PATHMON process. The number of requests for links will be less than or equal to
the %WAIT number.
•
If there are insufficient links available, the PATHMON process generates a LINK
DENIED message to the log file (for the first occurrence of this problem).
The ability of TCPs and server processes to get links can profoundly affect system
performance and response time. Frequently, link availability is determined by the
attributes set for objects such as TCPs and server classes when a system is
configured. For information about how you can configure your PATHMON environment
for optimum link management and availability, see the TS/MP System Management
Manual.
DELINK
For DELINK, % WAIT indicates the percentage of requests for dissolving a link that
waited in the queue.
CHECKPOINT
For CHECKPOINT, %WAIT indicates the percentage of requests for a checkpoint that
waited in the queue.
Terminal Statistics
Terminal statistics show the amount of TCP resources used by a terminal task. These
statistics provide information about the following:
•
Input and output operations (I/O INFO)
•
Memory segments (AREA INFO)
•
Response time (RESPONSE TIME INFO)