Measure Reference Manual

READS
Number of read operations (from the communications line to memory) performed by the I/O
process. Because the I/O process modifies this counter before the I/O operation, this counter
includes both successful and unsuccessful operations. The RETRIES counter counts the number of
I/O operations retries due to failures.
Counter type: Incrementing.
REQUESTS
Number of requests received by the I/O process for the communications line. To determine how
long the requests were queued before being read by the I/O process, measure the I/O process
and examine the RECV-QTIME counter of the PROCESS entity. After reading a request, the I/O
process places it on an internal queue.
Counter type: Incrementing.
RESPONSE-TIME
Time that the I/O process spent on terminal response for all measured subdevices on the line. A
transaction is a read from a terminal followed immediately by a write to the terminal. Terminal
response is the interval between the end of the read and the beginning of the write. TRANSACTIONS
counts the number of transactions.
For SNAX lines, this counter is always zero.
Counter type: Response time.
RETRIES
Number of times the I/O process retried an I/O operation because of an error on the
communications line.
Counter type: Incrementing.
TRANSACTIONS
Number of terminal transactions performed by the I/O process for all measured subdevices on the
line. A transaction is a read from a terminal followed immediately by a write to the terminal.
Terminal response is the interval between the end of the read and the beginning of the write.
RESPONSE-TIME measures the time spent on the transactions.
For SNAX lines, this counter is always zero.
Counter type: Incrementing.
WRITE-BUSY-TIME
The time spent writing to the communications line. This counter measures the time from the instruction
that starts the write to the interrupt that signals the end of the I/O operation. Any process can run
during this time.
Counter type: Busy.
WRITES
Number of write operations (from memory to the communications line) performed by the I/O
process. Because the I/O process modifies this counter before the I/O operation, this counter
includes both successful and unsuccessful operations. The RETRIES counter counts the number of
I/O operations retries due to failures.
Counter type: Incrementing.
Legacy Style Only ID Field DDL Definitions for LINE Entities
These ID fields are used in Legacy Style DDL records only.
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