The Subsystem activity section of the Pool interval report displays the performance information on the subsystems during each selected interval.
One line is printed for each subsystem and active pool combination that existed during each selected interval. Changes to this section of the report include:
- The CPU Util (Average CPU utilization by the transactions in the pool) column is expanded by 1 decimal position to show more precision.
- The following columns are expanded by 1 space, in order to show values
up to 9999.9:
- Synchronous DBR
- Synchronous DBW
- Synchronous NDBR
- Synchronous NDBW
- Asynchronous DBR
- Asynchronous DBW
- Asynchronous NDBR
- Asynchronous NDBW
- The A-W (Most active-to-wait transitions) column is expanded by 1 space in order to show values up to 6 digits.
Example
Pool Interval Report 08/30/05 12:18:33
Subsystem Activity Page 1
Member . . . : PTFVTR54 Model/Serial . : 825/10-D0BFD Main storage . . : 3072.0 MB Started . . . : 08/05/05 09:00:01
Library . . : PTFVTR54 System name . . : MEXGPL08 Version/Release . : 5/4.0 Stopped . . . : 08/05/05 11:00:00
Partition ID : 001 Feature Code . : 7418-2473-7418
--------- Physical I/O per Transaction -------- ---------------- Job Maximums ----------------
Itv Subsystem CPU ----- Synchronous ----- ---- Asynchronous ----- CPU Phy
End Name PL Util Tns DBR DBW NDBR NDBW DBR DBW NDBR NDBW Util I/O Tns Rsp A-W W-I A-I
----- ---------- -- ------ -------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---------- ----- ------ ------ ---- ----
09:00 BLDTESTSS 2 .00 0 .0 0 0 .00 2 0 0
09:00 JESUSESS 2 .00 0 .0 0 0 .00 2 0 0
09:00 QINTER 3 .00 0 .0 0 0 .00 1 0 0
09:00 QSERVER 2 .00 0 .0 0 0 .00 1 0 0
09:00 QSYSWRK 2 1.89 0 11.5 140 0 .00 258 0 0
09:01 BLDSHIPSS 2 .00 0 .0 0 0 .00 4 0 0
09:01 BLDTESTSS 2 .00 0 .0 0 0 .00 2 0 0
09:01 JESUSESS 2 .00 0 .0 0 0 .00 4 0 0
09:01 QINTER 3 .00 0 .0 0 0 .00 2 0 0
09:01 QSERVER 2 .00 0 .0 0 0 .00 1 0 0
09:01 QSNADS 2 .00 0 .0 0 0 .00 1 0 0
09:01 QSYSWRK 2 .28 0 .0 43 0 .00 233 0 0
09:01 BLDSHIPSS 2 .00 0 .0 0 0 .00 2 0 0
09:01 BLDTESTSS 2 .00 0 .0 0 0 .00 4 0 0
09:01 JESUSESS 2 .00 0 .0 0 0 .00 2 0 0
09:01 QINTER 3 .00 0 .0 0 0 .00 2 0 0
09:01 QSERVER 2 .00 0 .0 0 0 .00 1 0 0
09:01 QSYSWRK 2 1.38 0 .9 6575 0 .00 285 0 0
Itv End -- Interval end time (hour and minute)
Subsystem Name -- Subsystem name
PL -- Pool in which the jobs in the subsystem ran
CPU Util -- Average CPU utilization by the transactions in the subsystem. This is the average of all processors
Tns -- Number of transactions in the subsystem
Physical I/O per Trans -- Average physical disk I/O operations per transaction
Synchronous DBR -- Average synchronous data base reads per transaction
Synchronous DBW -- Average synchronous data base writes per transaction
Synchronous NDBR -- Average synchronous non-data base reads per transaction
Synchronous NDBW -- Average synchronous non-data base writes per transaction
Asynchronous DBR -- Average asynchronous data base reads per transaction
Asynchronous DBW -- Average asynchronous data base writes per transaction
Asynchronous NDBR -- Average asynchronous non-data base reads per transaction
Asynchronous NDBW -- Average asynchronous non-data base writes per transaction
Job Maximums -- Maximum values by a job in the subsystem
CPU Util -- Highest percentage CPU utilization
Phy I/O -- Most physical disk I/O requests
Tns -- Most transactions
Rsp -- Highest average response time (seconds)
A-W -- Most active-to-wait transitions
W-I -- Most wait-to-ineligible transitions
A-I -- Most active-to-ineligible transitions