Report output
The REPORT POSIX statement is used to request the output of the POSIX report. The report can only be output if the SM2 administrator has activated the monitoring process using the statement START-MEASUREMENT-PROGRAM TYPE=*POSIX.
HOST0001 SM2 POSIX CYCLE: 60 S <date> <time>
-------- OPTION A -------- -------- OPTION M --------
IGET/S NAMEI/S MSG/S SEMA/S
0.0 2.0 0.0 2.1
-------------------------------- OPTION B --------------------------------
BREAD/S BWRITE/S LREAD/S LWRITE/S RCACHE % WCACHE %
0.0 0.0 0.1 0.1 100.0 100.0
PREAD/S PWRITE/S
0.0 0.0
-------------------------------- OPTION C --------------------------------
SCALL/S SREAD/S SWRITE/S FORK/S EXEC/S RCHAR/S
35.6 4.3 0.3 0.0 0.0 986.4
WCHAR/S
22.7
Monitoring information
The individual entries have the following meanings:
OPTION A provides information on the use of system routines for file access: | |
IGET/S | Number of files determined by means of the Inode entry in the UFS (Berkeley “fast file system”) file system |
NAMEI/S | Number of times per second a path name is searched for in the file system |
OPTION M provides information on message and semaphore activities: | |
MSG/S | Number of accesses to messages per second |
SEMA/S | Number of semaphore activities per second |
OPTION B provides information on buffer utilization: | |
BREAD/S, BWRITE/S | Number of data transmissions per second between the system buffer and the hard disk or other block-oriented devices |
LREAD/S, LWRITE/S | Accesses to the system buffer per second |
RCACHE, WCACHE | Cache-memory hit percentage, i.e. RCACHE: 1-BREAD/LREAD (in percent) WCACHE: 1-BWRITE/LWRITE (in percent) |
PREAD/S, PWRITE/S | Number of physical data transmissions per second (raw device) |
OPTION C provides information on system calls: | |
SCALL/S | All types of system call per second |
SREAD/S, SWRITE/S, FORK/S, EXEC/S | Specific system calls |
RCHAR/S, WCHAR/S | Characters transmitted by means of read( ) and write( ) system calls |