Total IMS Resource Usage Analysis report description (report elements) - Documentation for BMC AMI Ops Monitor for IMS Offline 5.5

CURRENT DATE

Date this report was generated, in mm/dd/yyyy format

IMSID

Identification code for the IMS that processed the transactions

SMFID

Identification code from the SMCA for the computing system that processed the transactions

IMS LEVEL

IMS release number and modification level

LSO OPTION

LSO processing option (N, Y, X, or S) in effect

EARLIEST START

Julian date and time of day when the first terminal session started

LATEST STOP

Julian date and time of day when the last terminal session ended

RESOURCE IDENTIFICATION

Resource used; resources are grouped by:

IMS overhead CPU usage
IMS chargeable CPU usage
IMS total CPU usage
IMS scheduling activity
IMS terminal I/O (full function transactions)
IMS full function database requests
IMS full function database I/O
IMS terminal I/O (Fast Path transactions)
IMS Fast Path database requests
IMS Fast Path database I/O
Db2 requests
MQ requests

MPP WORKLOAD

IMS workload that is MPP (message processing program), JMP (Oracle Java message processing program), TPI (CPI, C-driven program), DBCTL threads (CICS and ODBA), and MDP (Fast Path message-driven program):

QUANTITY; amount of the IMS workload attributable to MPPs, JMPs, TPI, DBCTL threads, and MDPs for CPU consumed, scheduling activity, I/O activity, or requests made to a database or Db2 subsystem
% TOTAL WORKLOAD; percentage of the total resources consumed that is attributable to MPPs, JMPs, TPI, DBCTL threads, and MDPs

BMP WORKLOAD

IMS workload that is BMP (batch message processing), JBP (Java batch message processing), FPU (Fast Path utility), and NDP (non-message-driven program):

QUANTITY; amount of the IMS workload attributable to BMPs, JBPs, FPU, and NDP for CPU consumed, scheduling activity, I/O activity, or requests made to a database or Db2 system
% TOTAL WORKLOAD; percentage of the total resources consumed that is attributable to BMPs, JBPs, FPU, and NDP

TOTAL WORKLOAD

Total amount of resources used for the total workload

IMS OVERHEAD CPU USAGE

Amount of CPU time (expressed in seconds) consumed as IMS overhead:

Control REGION/DLISAS CPU TIME

Amount of CPU time used by the IMS DLISAS address spaces after buffer handling, OPEN/CLOSE, and program scheduling CPU time have been subtracted (for more information, see Control region overhead)

The calculation method for this field uses the program record (PAR) field that includes only the non-attributable overhead values. This method is more accurate when subsetted IRUFs are used as input (all matching transaction and program records may not be available).

BUFFER HANDLING CPU TIME

Amount of CPU time used in searching and managing the database I/O buffer pool. (For more information, see Message buffer CPU and Control buffer CPU)

OPEN/CLOSE PROCESSING CPU TIME

Amount of CPU time used in opening and closing data sets for use by DL/I (for more information, see Message OPEN/CLOSE CPU)

PROGRAM SCHEDULING CPU TIME

Amount of CPU time used for program scheduling and termination in the control region and DLISAS address spaces (for more information, see Program scheduling CPU)

MESSAGE REGION OVERHEAD CPU TIME

Amount of additional overhead CPU time used in the message region. The value includes all dependent region CPU time except for application program and message DL/I, OPEN/CLOSE, or Db2 CPU time (for more information, see Message region overhead CPU)

TOTAL OVERHEAD CPU TIME

Sum of control region/DLISAS, buffer handler, OPEN/CLOSE, program scheduling, and message region overhead CPU times

AVG OVERHEAD CPU/TRAN

Average overhead CPU time per transaction

IMS CHARGEABLE CPU USAGE

Amount of CPU time (expressed in seconds) directly attributed to the processing of a particular transaction

APPLICATION PROGRAM CPU TIME

CPU directly attributable to the application program (for more information, see Application program CPU)

DL/I CPU TIME

Amount of CPU time used by DL/I in processing the DL/I requests, excluding the overhead items OPEN/CLOSE CPU times and optionally buffer handler CPU time (for more information, see Message DL/I CPU and Control DL/I CPU)

DB2 CPU TIME

Amount of CPU time spent processing Db2 calls (for more information, see Db2 CPU)

TOTAL CHARGEABLE CPU

Sum of application program, DL/I, and Db2 CPU time

AVG CHARGEABLE CPU/TRAN

Average amount of chargeable CPU time per transaction

AVG DL/I CPU/DB CALL

Average amount of chargeable DL/I CPU time per call to a DL/I database

AVG DB2 CPU/DB2 CALL

Average amount of chargeable Db2 CPU time per call to a Db2 subsystem

IMS TOTAL CPU USAGE

Amount of control region, DLISAS, and dependent region CPU time spent processing transactions

Control REGION/DLISAS CPU TIME

Sum of control region DL/I, buffer, program scheduling, OPEN/CLOSE (full function databases), and overhead CPU time

DEPENDENT REGION CPU TIME

Sum of application program, Db2, message region DL/I, buffer, OPEN/CLOSE (Fast Path databases), and message region overhead CPU time

TOTAL IMS CPU

Sum of the control, DLISAS, and dependent region CPU time used

AVG CPU/TRAN

Average CPU time spent processing each transaction

% DEP. REGION/TOTAL CPU

Dependent region usage percentage of total CPU, calculated as:

(Dependent_Region_CPU × 100) ÷ Total_IMS_CPU

% CHARGEABLE TOTAL CPU

Percentage of total CPU that is chargeable, calculated as:

[(DLI_CPU + DB2_CPU + Application_Program) × 100]) ÷ Total_CPU

IMS SCHEDULING ACTIVITY

Number of programs executed and transactions processed during the summarization period

The figures allow approximation of I/O required for IMS supervisory functions.

NUMBER OF PROGRAMS

Number of programs executed

NUMBER OF PROGRAM ABENDS - SYSTEM

Number of programs that incurred a system abend

NUMBER OF PROGRAM ABENDS - USER

Number of programs that incurred a user abend

NUMBER OF TRANSACTIONS

Number of transactions processed

NUMBER OF TRANS. ACCESSING DB2

Number of transactions that accessed a Db2 subsystem

AVG TRANS/PROGRAM

Average number of transactions per program, calculated as:

Number_of_Transactions ÷ Number_of_Programs

IMS TERMINAL I/O

Number of DL/I message calls (terminal I/O) issued in processing the full function message queue transaction volume:

FULL FUNCTION TRANS (MSG Q)

Number of transactions processed through the full function message queue

INPUT CALLS - MGU/MGN

Number of MESSAGE GET UNIQUE and MESSAGE GET NEXT calls

OUTPUT CALLS - MISRT/MPURG

Number of MESSAGE INSERT and MESSAGE PURGE calls

TOTAL TERMINAL I/O

Sum of the input and output calls

AVG TERMINAL I/O / TRAN

Average amount of terminal activity per transaction, calculated as:

Total_Terminal_I/O ÷ Number_of_Transactions

IMS FULL FUNCTION DATA BASE REQUESTS

Number of DL/I requests and updates issued by transactions

TRANS ACCESSING FF DBS

Number of transactions accessing full function databases

DL/I GET UNIQUES

Number of GET UNIQUE calls

DL/I GET NEXT

Number of GET NEXT calls

TOTAL GET CALLS

Sum of GET UNIQUE and GET NEXT calls

AVG GET CALLS/TRAN

Average number of GET calls per transaction, calculated as:

Total_GET_Calls ÷ Number_of_Transactions

DL/I DELETES

Number of DELETE calls

DL/I REPLACES

Number of REPLACE calls

DL/I INSERTS

Number of INSERT calls

TOTAL UPDATE CALLS

Sum of DELETE, REPLACE, and INSERT calls

AVG UPDATE CALLS / TRAN

Average number of update calls per transaction, calculated as:

Total_Update_Calls ÷ Number_of_Transactions

TOTAL DL/I DATA BASE CALLS

Total GET and UPDATE calls.

AVG DL/I CALLS / TRAN

Average number of DL/I calls per transaction, calculated as:

Total_DL/I_Database_Calls ÷ Number_of_Transactions

% UPDATE CALLS

Percentage of database calls for updates, calculated as:

(Total_Update_Calls × 100) ÷ Number_of_DL/I_Calls

IMS FULL FUNCTION DATA BASE I/O

Amount of database I/O activity (for more information, see Database reads and Database writes)

KEY READS

Number of reads to VSAM KSDSs to satisfy DL/I requests

NONKEY READS

Number of reads to QSAM or VSAM KSDSs to satisfy DL/I requests

TOTAL READ I/O

Sum of key and nonkey reads

AVG READ I/O / TRAN

Average number of reads per transaction, calculated as:

Total_Read_I/O ÷ Number_of_Transactions

KEY WRITES

Number of writes to VSAM KSDSs to satisfy DL/I requests

NONKEY WRITES

Number of writes to QSAM or VSAM KSDSs to satisfy DL/I requests

TOTAL WRITE I/O

Sum of key and nonkey writes

AVG WRITE I/O / TRAN

Average number of writes per transaction, calculated as:

Total_Write_I/O ÷ Number_of_Transactions

TOTAL DATA BASE I/O

Sum of total I/O reads and writes

AVG I/O / TRAN

Average I/O activity per transaction, calculated as:

Total_I/O ÷ Number_of_Transactions

% KEY I/O

Percentage of I/O activity for KSDSs, calculated as:

(Total_Key_I/O × 100) ÷ Total_Database_I/O

% WRITE I/O

Percentage of I/O activity for database writes, calculated as:

(Total_Write_I/O × 100) ÷ Total_Database_I/O

IMS TERMINAL I/O (not printed if there is no Fast Path activity)

Number of DL/I message calls (terminal I/O) issued in processing the Fast Path transaction volume:

FAST PATH TRANSACTIONS (EMH)

Number of Fast Path transactions processed through the Expedited Message Handler

INPUT CALLS - MGU

Number of MESSAGE GET UNIQUE calls

OUTPUT CALLS - MISRT/MPURG

Number of MESSAGE INSERT and MESSAGE PURGE calls

TOTAL TERMINAL I/O

Sum of the input and output calls

AVG TERMINAL I/O / TRAN

Average amount of terminal activity, calculated as:

Total_Terminal_I/O ÷ Number_of_Fast_Path_Transactions

IMS FAST PATH DATA BASE REQUESTS (not printed if there is no Fast Path activity)

Number of DL/I requests and updates issued to Fast Path databases (DEDBs and MSDBs):

TRANS ACCESSING FP DBS

Number of transactions accessing Fast Path databases

DL/I GET UNIQUES

Number of GET UNIQUE calls

DL/I GET NEXT

Number of GET NEXT calls

TOTAL GET CALLS

Sum of GET UNIQUE and GET NEXT calls

% MSDB GET CALLS

Percentage of MSDB calls for GET calls, calculated as:

(Total_Get_Calls × 100) ÷ Number_of_MSDB_Calls

DL/I DELETES

Number of DELETE calls

DL/I REPLACES

Number of REPLACE calls

DL/I INSERTS

Number of INSERT calls

TOTAL UPDATE CALLS

Sum of DELETE, REPLACE, and INSERT calls

% MSDB UPDATE CALLS

Percentage of MSDB calls for update calls, calculated as:

(Total_Update_Calls × 100) ÷ Number_of_MSDB_Calls

TOTAL DL/I DATA BASE CALLS

Total GET and UPDATE calls

AVG DL/I CALLS / TRAN

Average number of calls per Fast Path transaction, calculated as:

Total_DL/I_Database_Calls ÷ Number_of_Fast_Path_Transactions

% MSDB CALLS

Percentage of MSDB calls for DL/I calls, calculated as:

(Total_MSDB_Calls × 100) ÷ Number_of_DL/I_Calls

IMS FAST PATH DATA BASE I/O (not printed if there is no Fast Path activity)

Amount of Fast Path database I/O activity (for more information, see Database reads and Database writes)

DEDB READS

Number of reads to DEDBs to satisfy DL/I requests

AVG READ I/O / TRAN

Average number of reads per Fast Path transaction, calculated as:

Total_Read_I/O ÷ Number_of_Fast_Path_Transactions

DEDB WRITES

Number of DEDB writes to satisfy DL/I requests

AVG WRITE I/O / TRAN

Average number of writes per Fast Path transaction, calculated as:

Total_Write_I/O ÷ Number_of_Fast_Path_Transactions

TOTAL DATA BASE I/O

Sum of DEDB reads and writes

AVG I/O / TRAN

Average I/O activity per Fast Path transaction, calculated as:

Total_I/O ÷ Number_of_Fast_Path_Transactions

% WRITE I/O

Percentage of I/O activity for DEDB writes, calculated as:

(Total_Write_I/O × 100) ÷ Total_DEDB_I/O

DB2 REQUESTS

Number of Db2 requests issued by transactions

Note

This section of the report is not printed if there is no Db2 activity or if FEATURE=NODB2 in IMFSYS00.

SSID

Subsystem identification code of the first Db2 subsystem accessed

NUMBER OF TRANS ACCESSING DB2

Number of transactions that accessed a Db2 subsystem

DB2 SELECTS/FETCHES

Number of SQL SELECTs and FETCHes to the Db2 subsystem

DB2 OPENS

Number of SQL OPEN calls to the Db2 subsystem

TOTAL GET CALLS

Sum of SQL SELECT/FETCH and OPEN calls

AVG GET CALLS / TRAN

Average number of SELECT/FETCH and OPEN calls issued per Db2 transaction

DB2 INSERTS

Number of SQL INSERT calls to the Db2 subsystem

DB2 DELETES

Number of SQL DELETE calls to the Db2 subsystem

DB2 UPDATES

Number of SQL UPDATE calls to the Db2 subsystem

TOTAL UPDATE CALLS

Sum of SQL INSERT, DELETE, and UPDATE calls

AVG UPDATE CALLS / TRAN

Average number of update calls made by each Db2 transaction

DB2 DATA DEF. LANGUAGE (DDL)

Number of SQL Data Definition Language calls to the Db2 subsystem (CREATE, DROP, ALTER, COMMENT, LABEL)

DB2 DYNAMIC SQL CALLS

Number of SQL dynamic calls to the Db2 subsystem (PREPARE, DESCRIBE, EXECUTE)

DB2 SQL Control CALLS

Number of SQL control-type calls to the Db2 subsystem (GRANT, REVOKE)

DB2 OTHER CALLS

Number of other SQL control-type calls to the Db2 subsystem (EXPLAIN, LOCK, LABEL, CLOSE)

TOTAL SPECIAL CALLS

Ttotal DDL, DYNAMIC, control, and other SQL calls

AVG SPECIAL CALLS / TRAN

Average number of special SQL calls per transaction, calculated as:

Total_Special_SQL_Calls ÷ Number_of_DB2_Transactions

DB2 DATA DEF. LANGUAGE (DDL)

Number of SQL Data Definition Language calls to the Db2 subsystem (CREATE, DROP, ALTER, COMMENT, LABEL)

DB2 DYNAMIC SQL CALLS

Number of SQL dynamic calls to the Db2 subsystem (PREPARE, DESCRIBE, EXECUTE)

DB2 SQL Control CALLS

Number of SQL control-type calls to the Db2 subsystem (GRANT, REVOKE)

DB2 OTHER CALLS

Number of other SQL control-type calls to the Db2 subsystem (EXPLAIN, LOCK, LABEL, CLOSE)

TOTAL SPECIAL CALLS

Total DDL, DYNAMIC, control, and other SQL calls

AVG SPECIAL CALLS / TRAN

Average number of special SQL calls per transaction, calculated as:

Total_Special_SQL_Calls ÷ Number_of_DB2_Transactions

TOTAL DB2 CALLS

Total number of all Db2 calls

AVG DB2 CALLS / TRAN

Average number of Db2 calls per transactions, calculated as:

Total_DB2_Calls ÷ Number_of_DB2_Transactions

% UPDATE CALLS

Percentage of DB2 calls that are updates, calculated as:

(Total_Update_Calls × 100) ÷ Total_DB2_Calls

MQ REQUESTS

Number of MQ requests issued by transactions

Note

This section of the report is not printed if there is no MQ activity.

SSID

Subsystem identification code of the first MQ subsystem accessed

NUMBER OF TRANS. ACCESSING MQ

Number of transactions that accessed an MQ subsystem

MQ GETS

Number of MQ GET calls to the MQ subsystem

AVG GETS / TRAN

Average number of GET calls made by each MQ transaction

MQ PUTS

Number of MQ PUT calls to the MQ subsystem

AVG PUTS / TRAN

Average number of PUT calls made by each MQ transaction

MQ PUT1S

Number of MQ PUT1 calls to the MQ subsystem

AVG PUT1S / TRAN

Average number of PUT1 calls made by each MQ transaction

MQ SETS

Number of MQ SET calls to the MQ subsystem

AVG SETS / TRAN

Average number of SET calls made by each MQ transaction

MQ OPENS

Number of MQ OPEN calls to the MQ subsystem

AVG OPENS / TRAN

Average number of OPEN calls made by each MQ transaction

MQ CLOSES

Number of MQ CLOSE calls to the MQ subsystem

AVG CLOSES / TRAN

Average number of CLOSE calls made by each MQ transaction

MQ BACKS

Number of MQ BACK calls to the MQ subsystem

AVG BACKS / TRAN

Average number of BACK calls made by each MQ transaction

MQ COMMITS

Number of MQ COMMIT calls to the MQ subsystem

AVG COMMITS/ TRAN

Average number of COMMIT calls made by each MQ transaction

MQ CONNECTS

Number of MQ CONNECT calls to the MQ subsystem

AVG CONNECTS/ TRAN

Average number of CONNECT calls made by each MQ transaction

MQ DISCONNECTS

Number of MQ DISCONNECT calls to the MQ subsystem

AVG DISCONNECTS/ TRAN

Average number of DISCONNECT calls made by each MQ transaction

MQ INQUERIES

Number of MQ INQUERY calls to the MQ subsystem

AVG INQUERIES / TRAN

Average number of INQUERY calls made by each MQ transaction

MQ UNKNOWNS

Number of MQ UNKNOWN calls to the MQ subsystem

AVG UNKNOWNS / TRAN

Average number of UNKNOWN calls made by each MQ transaction

Total IMS Resource Usage Analysis report description (report elements) - Documentation for BMC AMI Ops Monitor for IMS Offline 5.5

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