ACTIVITY report

This report provides the user with an overview of the most important system activities.

Report output

The REPORT ACTIVITY statement is used to request the output of the ACTIVITY report. POSIX data can only be output if the monitoring program is activated.

When analyzing the monitoring results, it should be remembered that the SM2 monitoring task is a system task that is kept active for the duration of the whole monitoring process. Another system task is created for data entry in the SM2 output file, which is likewise kept active for the duration of the whole monitoring process; the same applies to user task monitoring.

When systems comprising a number of logical machines are being monitored, the mean values of the monitored data for all active logical machines are output.

 HOST0001 SM2 ACTIVITY (VM)   CYCLE:   60 S  SAMPLES:   144       <date> <time>

  CPU UTILIZATION % ( 2 LM'S)              PCS DATA             MEMORY
 +------+------+------+------+        +-------+------+ +-------+-------+-------+
 |  TU  |  TPR |  SIH | IDLE |        | SRACT | RDACT| |  NPP  | WS-ACT|WS-WACT|
 +------+------+------+------+        +-------+------+ +-------+-------+-------+
 |  8.4 | 26.5 | 26.3 | 38.6 |        |  91231|   1.1| | 820838|  26972|      0|
 +------+------+------+------+        +-------+------+ +-------+-------+-------+

         TASKS (CURRENT TASK TYPE)               TASKS IN SCHEDULER QUEUES
 +-------+-------+-------+-------+-------+ +--------+--------+--------+--------+
 | BATCH | DIALOG|   TP  |  SYS  |#-TASKS| |  #-ACT |  CPU-Q |  IO-Q  |  PAG-Q |
 +-------+-------+-------+-------+-------+ +--------+--------+--------+--------+
 |  105.2|  167.0|   58.0|  169.0|  499.1| |  148.6 |    1.8 |    0.2 |    0.0 |
 +-------+-------+-------+-------+-------+ +--------+--------+--------+--------+

                IO'S PER SEC                                      POSIX DATA
 +-------+-------+-------+-------+-------+                   +--------+--------+
 | TOTAL |  DISK |  PAGE |   TD  |  TAPE |                   | SCALL/S| FORK/S |
 +-------+-------+-------+-------+-------+                   +--------+--------+
 |3724.0 | 294.9 |   0.0 |3423.6 |   5.3 |                   |   35.6 |    0.0 |
 +-------+-------+-------+-------+-------+                   +--------+--------+

Monitoring information

(VM)	This abbreviation will be output in the first line if the system monitored is a VM2000 system.
CPU UTILIZATION %
(2 LM'S)	This additional information indicates how many logical machines were active.
Proportion of CPU time during which the CPU was in the following processor states:
TU	User programs
TPR	Processing of program interrupts
SIH	Analysis of program interrupts
IDLE	Inactive
For systems comprising a number of logical machines, mean values for all active logical machines are output. The sum of the TU, TPR, SIH and IDLE times is always 100%. For evaluation of the TU and TPR percentages, see section "Accuracy of the SM2 data". In the monitoring cycle in which reconfiguration took place, these values and the number of IO operations are marked as invalid (*). SM2 supplies a STOP time for each logical machine. This value indicates the proportion of time during which the relevant logical machine was inoperable. The STOP time is output by: SM2 in the CPU report SM2R1 in the CPU report group in reports 1 and 2 when the parameter PROCESSOR-SPLITTING=*YES is specified openSM2 Manager in the “StopTime [%]” report of CPU report group
PCS DATA
SRACT	Current overall system service rate
RDACT	Current delay of all jobs in the overall system
These fields will not contain any data if PCS was inactive during the last monitoring cycle.
MEMORY
NPP	Number of available pageable pages (4 KB) in main memory
WS-ACT	Working set of all active tasks (task queues 0 – 4) in 4 KB pages
WS-WACT	Working set of all ready, inactive tasks (task queue 5, in the case of PCS also task queue 6) in 4 KB pages
TASKS (CURRENT TASK TYPE)
BATCH	Average number of batch tasks during the monitoring cycle
DIALOG	Average number of interactive tasks during the monitoring cycle
TP	Average number of TP tasks during the monitoring cycle
SYS	Average number of system tasks during the monitoring cycle
#-TASKS	Average number of all tasks logged on to the system during the monitoring cycle
All batch, interactive, TP and system tasks are assigned to the TYPE to which they belong at the time of sampling.
TASKS IN SCHEDULER QUEUES
#-ACT	Average number of all active tasks (including SM2 tasks)
CPU-Q	Average number of tasks waiting to use the processor(s) and of tasks currently using the processor(s) (task queues 0 and 1, without the SM2 monitoring task)
IO-Q	Average number of tasks waiting for IO termination (tasks in task queue 4 with IO pend code)
PAG-Q	Average number of tasks waiting for paging (tasks in task queue 3)
IO'S PER SEC	These counts indicate the number of input/output operations (EXCP calls).
TOTAL	Sum of all IO operations per second (including paging)
DISK	Number of DMS IO operations to disk units per second (without paging IO operations)
PAGE	Number of paging IO operations per second. All paging operations (reading and writing) are counted.
TD	Number of IO operations to communication devices per second (family name TD).
TAPE	Number of IO operations to tape devices per second
POSIX DATA
SCALL/S	Number of all system calls per second
FORK/S	Number of FORK system calls per second
These two ACTIVITY report values are the same as the corresponding values of the POSIX screen. These fields will not contain any values if the POSIX monitoring program is not activated.