Measure Reference Manual

INFO-CALLS
Number of calls to these procedures that resulted in a message being dispatched to a process (IOP
or other) to obtain the information requested:
DEVICEINFOFILE_GETINFOBYNAME_FILEINFO
DEVICEINFO2FILE_GETINFOLISTBYNAME_FILERECINFO
FILEGETINFO_LISTFILE_GETINFO_
For OSS, the number of fstat(), fstatvfs(), fpathconf(), getsockname(), getpeername(), getsockopt(),
and sockatmark() API calls for this file.
This counter includes both user and system calls to these procedures.
Counter type: Incrementing.
LOCK-WAITS
Number of times a call waited for a lock request. For OSS, counts whether a fcntl (,F_SETLKW)
lock request waited for another lock.
Counter type: Incrementing.
MESSAGE-BYTES
Number of message bytes sent and received for this file open.
For OSS, counts the total number of message data bytes sent or received for MESSAGES from
server processes and the OSS name server for this file.
Typically, MESSAGE-BYTES is equal to the total number of READ-BYTES and WRITE-BYTES. However,
for the OSSPIPE FILE open type, when the OSSPIPE opener is in the same CPU as the OSSPIPE
buffer, MESSAGES are not used for every read() or write(). Because MESSAGE-BYTES is only
incremented when MESSAGES is used, MESSAGE-BYTES may differ from the total number of
READ-BYTES and WRITE-BYTES .
This counter does not include bytes transferred by direct bulk I/O. The DBIO-READ-BYTES and
DBIO-WRITE-BYTES counters measure direct bulk I/O transfers.
In D-series and G-series RVUs, this is a 32-bit counter. In H-series and J-series RVUs, this is a 64-bit
counter.
In G-series RVUs, the MESSAGE-BYTES-F field is a 64-bit version of MESSAGE-BYTES.
Counter type: Accumulating.
MESSAGES
Number of messages sent for this open, including the OPEN messages. Because file labels might
exceed the 30-KB file-message limit, multiple OPEN messages might be sent.
For OSS file opens, MESSAGES is the total number of messages sent or received from server
processes and the OSS name server for this file. It does not include the OPEN message, which is
tracked in the PROCESS entity. For OSS sockets, MESSAGES and MESSAGE-BYTES reflect OSS
name server activity only.
Typically, MESSAGES is equal to the total number of READS and WRITES. However, for the
OSSPIPE FILE open type, when the OSSPIPE opener is in the same CPU as the OSSPIPE buffer,
MESSAGES are not used for every read() or write().
Counter type: Incrementing.
240 Entities and Counters