(DI-2308) Collector for Workload Statistics

Owned by DVD ROBOT
Aug 14, 2023
5 min read

The technical name of the Collector for Workload Statistics is /DVD/MON_STAT_CL_COL_MODULES.

The default KPIs created through this collector display statistics about Transactional workload. The STAD records are evaluated to provide information about the response times, average times, or a number of transactions. This collector provides two input tables that offer higher scalability to create custom KPIs based on customer needs without any additional code changes.

In this section:

 

Default KPIs delivered with this collector

The following default KPIs are delivered with this collector:

KPI name

Description

Unit

Detail table

KPI name

Description

Unit

Detail table

STAT_DB_DIALOG_AVG

Average Response Time for Users on Database

Ms

No

STAT_DB_RESP_AVG

Average Response Time on Database

Ms

No

STAT_DIALOG_AVG

Average System Response Time for Users

Ms

No

STAT_DIALOG_TOT

Total System Response Time for Users

Ms

No

STAT_M_RESP_BC

[BC] Response time from Basis Components

Ms

No

STAT_M_RESP_BW

[BW] Response time from SAP Business Inf. Warehouse

Ms

No

STAT_M_RESP_XXXX

Total response time from undefined components

Ms

No

STAT_M_TCNT_BC

[BC] Number of trans. from Basis Components

Count

No

STAT_M_TCNT_BW

[BW] Number of trans. from SAP Business Inf. Warehouse

Count

No

STAT_M_TCNT_XXXX

Number of a transaction from undefined components

Count

No

STAT_RSA1_AVG

Average runtime of RSA1

Ms

No

STAT_SE16_AVG

Average Response Time of Transaction SE16

Ms

No

STAT_SE16_CNT

The number of SE16 Transaction starts

Count

No

STAT_SE16_TTL

Response Time of Transaction SE16

Ms

No

STAT_SE38_RESP

Response Time of Transaction SE38

Ms

No

STAT_SE38_RUN

Average Runtime of reports running via SE38

Ms

No

NOTE: All modules workloads KPIs have prefix STAT_*

Custom KPIs

The Collector for Workload statistics enables you to create custom KPIs based on this collector. For more information on how to create a custom KPI, see the chapter Create a KPI through the Collectors with a Custom KPI.

 

You can find an example of how to create a custom KPI, which is based on this collector in the following subpages:

Input table

The Collector for Workload Statistics uses two input tables:

1. /DVD/MON_STAT_I1 - KPI Extended Definition for SAP Module Statistic Monitoring

The rules define how the KPI value is calculated and provides the following fields:

Technical name

Column name 

Description

Technical name

Column name 

Description

KPI

KPI name

Name of the KPI that rule applies to (same technical name as in KPI definition)

VALUE_RESULT

KPI Value result for Module

Define how the value will be calculated. Possible options are:

  • AVG_TIME - Average response time

  • MAX_TIME - Maximum time

  • MED_TIME - Median runtime

  • MIN_TIME - Minimum time

  • RESP_TIME - Total response time

  • TRANS_CNT- Number of transactions

ABOVE_X_MSEC

Count transaction runtime only above the limit (in milliseconds)

(OPTIONAL) Evaluate only transactions which have runtime above the limit

MIN_HINT

Minimum hint of transaction count to evaluate

(OPTIONAL) Evaluate only if more than x transaction

EXCLUDE_TOP_N

Exclude top N runtimes for average

(OPTIONAL) Exclude top N runtimes for average

TIME_SOURCE

Time source

Possible values are:

  • ‘  ‘ - Response time

  • C - CPU time

  • D - DB time

  • P - Processing time

  • G - GUI time

  • R - Roll (in+wait) time

  • T - Total (resp. + GUINet) time

  • N - GUINet time

ONCE_PER_TRANS

Collect only one Statistical record per transaction

Collect only one record according to a specific transaction ID and it's the session ID.

If this flag is not set, it will include all STAD records for all user steps in the transaction.

  • Space value is recommended for time calculations to include all STAD records.

  • 'X' value is recommended for transaction count where the unique transaction ID should be processed.

ADD_TO_DETAILS

Add statistics to details

Add relevant statistics found for KPIs into detail table (Yes/No)

CHANGED_BY

Changed by

Last changed by user [automatically filled].

CHANGED_AT

Changed at

Last changed date [automatically filled]. 

2. /DVD/MON_STAT_I2 - KPI Rules for SAP Module Statistic Monitoring

This table provides rules for a more specific selection of statistical records which are included in the KPI value calculation. It contains the following fields:

Technical name

Column name 

Description

Technical name

Column name 

Description

KPI

KPI name

Name of the KPI that rule applies to (same technical name as in KPI definition)

KPI_RULE_NUMBER

KPI Rule Number

Index of rule for same KPI.

Please note that the OR operator is used for more rules.

PS_POSID

Application Component ID

(OPTIONAL) SAP Application Component ID of desired transactions

For transactions without an app. comp. can be used UNKNOWN

PROGNAME

ABAP Program Name

(OPTIONAL) Name of specific Transaction or Program/Report

USERID

User Name

(OPTIONAL) User name whose executed transaction/program

TASK_TYPE

Task type

(OPTIONAL) Possible values are:

  • 1        Dialog process

  • 2        Update process

  • 3        Spool

  • 4        Background process

  • 5        Enqueue

  • 6        Buffer synchronization

  • 7        Auto ABAP

  • 8        Update 2

  • 9        Native RFC

  • 10      Plugin

  • 101    HTTP

  • 102    HTTPs

  • 103    NTTP

  • 104    SMTP

  • 105    FTP

  • 108    LCOM

  • 117    HTTP JSP

  • 118    HTTPs JSP

  • 255    CPI-C

  • 254    RFC

  • 253    ALE

BTCJOB

Background job name

(OPTIONAL) Background Job Name

SERVER

Server name

(OPTIONAL) Server name

STAT_FIELD_NAME

Specific field name from workload statistic record structure (STAD_STATREC)

(OPTIONAL) Technical name of a field from structure STAD_STATREC (e.g. RECORD-CUA_FUNC for specific function code executed in a transaction).

STAT_FIELD_COMP

Value comparator for a specific field in workload stat.

(OPTIONAL) Comparator for the field value. Possible values:

  • =       Equals

  • >       Greater

  • <       Smaller

  • <>    Different

  • CP     Contains pattern

STAT_FIELD_VALUE

Value of specific field from workload statistic record

(OPTIONAL) Value of the field in STAD record

CHANGED_BY

Changed by

Last changed by user [automatically filled].

CHANGED_AT

Changed at

Last Changed At [TIMESTAMP] [automatically filled]. 

CREATED_BY

Created by

Created By User [automatically filled]

CREATED_AT

Created at

Created At [TIMESTAMP] [automatically filled]

Please note that if you specified more KPI rules with custom STAT_FIELD* values from structure STAD_STATREC, the OR operator is used for these rules.

Parameters

The following parameters are used for this collector:

Parameter name

Description

Parameter name

Description

INCLUDE_APPL_STAT

Should the collector include application statistics when retrieving statistical records?

Default value: empty (do not include application statistics)

LOAD_STAD_REC_BY_ONE_SERVER

This parameter defines if the STAD records are loaded and processed simultaneously for all application servers or sequentially one by one application server.

By default, this value is empty, so the STAD records are loaded and processed simultaneously for all application servers.

If this value is set to 'X', the STAD records are loaded and processed sequentially one by one application server. This approach is only useful if there are too many application servers on the system and processing too many STAD records simultaneously is causing the runtime errors due to the low memory on the system.

MAX_PERIOD_IN_MINUTES

Maximum period time for statistical records selections.

The default value in minutes: 10

WAIT_FACTOR

Value inversely proportional to wait time for aRFC callbacks of function module SWNC_STAD_READ_STATRECS. The function module calls each application server using aRFC and the the wait factor determines how long the logic waits for all aRFC calls to complete. Wait time is calculated using the following expression: wait_time = read_time / wait_factor + 20

On higher SAP releases (SAP_BASIS 740: SP 0017 and higher), it does not make sense to change the value of this parameter, as SAP introduced a new parameter in function SWNC_STAD_READ_STATRECS which suppress the wait factor value.

Default value: 30

Detail table

The collector provides a detailed output for statistical records via detail table /DVD/MON_STAT_D1 - SAP Workload Statistics.

By default, details are not collected for default KPIs. If you want to collect details, the flag for the field ‘ADD_TO_DETAILS' needs to be set to 'X’ for the relevant KPI defined in the input table /DVD/MON_STAT_I1. After this flag setup, the relevant KPI needs to be assigned to the detail table /DVD/MON_STAT_D1 (more information about KPI assignment to the detail table can be found in the chapter (DI-2308) Create a Detail Table for a Custom KPI Assigned to a Custom Collector).

Detail table /DVD/MON_STAT_D1 contains the following fields:

Technical name

Description

Technical name

Description

TIMESTAMP

Time when the records are saved into the Detail table

SID

System ID

SERVER

Server name

PS_POSID

Application Component ID

PROGNAME

ABAP Program Name

USERID

User Name

TASK_TYPE

Task type

BTCJOB

Background job name

TRANS_COUNT

Transaction count

RESP_TIME

Response time [ms]

AVG_TIME

Average runtime [ms]

PERIOD

Period of a snapshot in seconds

PROC_TIME

Total processing time [ms]

AVG_PROC_TIME

Average processing time [ms]

ROLLED_OUT

Rolled out time [ms]

AVG_ROLLED_OUT

Average rolled out time [ms]

DB_REQ_TIME

Database request time [ms]

AVG_DB_REQ_TIME

Average database request time [ms]

CPU_TIME

CPU time [ms]

AVG_CPU_TIME

Average CPU time [ms]

GUI_TIME

GUI time [ms]

AVG_GUI_TIME

Average GUI time [ms]

GUI_NET_TIME

GUI network time [ms]

AVG_GUI_NET_TIME

Average GUI network time [ms]

KPI

KPI name