Flow Map Manual

Database Object Attributes
Flow Map Object Attributes
E–4 098935 Tandem Computers Incorporated
Database Object
Attributes
BLOCK-SPLITS. Number of blocks spilt during writes to file.
CACHE-HITS. Number of times a read operation found the required block in cache,
which saves a disk I/O.
CACHE-WRITE-CLEANS. Number of times a required block is found clean in cache for a
write operation. This saves a disk read to bring the block in. Counter type:
Incrementing.
CACHE-WRITE-HITS. Number of times a write operation found the required block dirty
in cache, which saves a disk I/O.
CAHECH-READ-HITS. Number of times a read operation found the required block in
cache, which saves a disk I/O.
DELETES. Number of calls to the WRITEUPDATE or WRITEUPDATEUNLOCK
procedure with a buffer length of zeros.
DISC-READS. The number of physical disk reads performed.
DRIVER-INPUT-CALLS. Number of read operations.
DRIVER-OUTPUT-CALLS. Number of write operations.
ESCALATIONS. The number of times a lock escalated to a file-level lock.
EXTENT-ALLOCATIONS. The number of times a file extent was allocated.
FILE-BUSY-TIME. Time in microseconds spent executing waited I/O requests.
INFO-CALLS. Number of calls to the FILEINFO and FILERECINFO procedures
regarding the file.
LOCK-BOUNCES. Number of bounced locks (FELOCKED or error 73) returned by the
disk process to the File System. For an SQL table, this error is a result of using the
CONTROL TABLE command with the RETURN-IF-LOCKED option. For an Enscribe
file, this is a result of using the SETMODE function 4 with Param 1.<15>=1 (alternate
lockmode). Counter type: Incrementing.
LOCK-TIMEOUTS. Count of timeouts for lock wait operations.
LOCK-WAITS. The number of times a call waited for a lock request.
LOCKWAIT-TIME. Total time spent waiting for a locked record or file to be unlocked.
MAX-LOCKWAIT-TIME. Time the longest lock wait operation took.
MESSAGE-BYTES. The number of message bytes sent and received for this file open.
MESSAGES. The number of messages sent for this open, including the OPEN messages.
OPENERS. Count of file openers.
READS. Number of calls to the READ, READLOCK, READUPDATE, and
READUPDATELOCK procedures.
RECORDS-ACCESSED. The number of records read by the disk process or file system to
perform the operations.