Sizing Guide Sizing for Guided Procedures, SAP NetWeaver 7.0 Released for SAP Customers and Partners Document Version 1.0 - September 2007r Released for SAP Customers and Partners
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TABLE OF CONTENTS 1 INTRODUCTION...2 1.1 FUNCTIONS OF SAP GUIDED PROCEDURES...2 1.2 ARCHITECTURE OF SAP GUIDED PROCEDURES...3 1.3 FACTORS THAT INFLUENCE THE PERFORMANCE...3 2 SIZING FOR GUIDED PROCEDURES...4 2.1 ASSUMPTIONS...4 2.2 SIZING GUIDELINE...4 3 MISCELLANEOUS...6 4 COMMENTS AND FEEDBACK...6 SAP AG Sizing SAP Guided Procedures - SAP Customers and Partners 1
1 Introduction Guided Procedures (GP) provides tools and framework for modeling and executing user-centric workflows. It is aimed to support business specialists in implementing processes, and to guide casual end users through the execution of these processes, helping them to understand their work context better and to contribute more effectively. 1.1 Functions of SAP Guided Procedures Guided Procedures: Programming Model Design Time This is the environment where you model process templates and their building elements. The Web-based design time tools are accessed from the design-time work set 1. All objects that you create are available in a central repository called gallery. The object metadata is stored in the database schema of the underlying Java server. Object versioning is supported. The integration of various application types in workflows modeled with GP is enabled using callable objects 2. GP content can be exported to a deployable unit and transported across systems, either using Javaside deployment, or the transport capabilities in the ABAP stack. Runtime Once activated, process templates can be instantiated and executed in the GP runtime. The runtime user interface provides different views on the process, such as overview, detailed activities view, and so on. GP comes with an embedded implementation of the GP Workflow Engine, which enables you to execute processes without additional configuration of the processing layer. Workflow processing is executed entirely in the Java stack, and the process context information is stored in the Java server database. 1 More information: Process Modeling. 2 More information: Callable Object SAP AG Sizing SAP Guided Procedures - SAP Customers and Partners 2
1.2 Architecture of SAP Guided Procedures The goals of the GP framework are: to provide an environment for easier implementation of model-driven workflows to enable integration of different applications to implement transport and internationalization capabilities for GP content To meet these goals, GP provides a design time, and a runtime, as shown in the figure below 1.3 Factors that influence the performance The factors that influence the performance are given by: Complexity of the running processes. Number of process instances already existing in the database. This includes currently running processes, completed processes and terminated processes. SAP AG Sizing SAP Guided Procedures - SAP Customers and Partners 3
2 Sizing for Guided Procedures 2.1 Assumptions 75% of user interaction is expected in the runtime work center. 10% of user interaction is expected in viewing the task area 10% of user interaction is expected in viewing the process area 5% of user interaction is expected in the designtime work center. Up to 1000 process instances per user. 2.2 Sizing guideline For measuring the performance we have used the following hardware configuration: Intel Xeon (Hyper Threaded) CPU 3.40 GHz with 8 GB RAM which has a rating of 2070 SAPS 3 The test case for the runtime work center is a simulation of a leave request which includes 1 Sequential block and 8 actions. For the sizing guideline we have used the following formula: ((CPU/DS) * NU * SAPS of CPU )/TT*65% With: CPU/DS - CPU per Dialog step (DS), where Dialog Step is every user click which makes roundtrips to the server NU Number of Users Saps of CPU - Saps of the CPU with which we have done the measurements TT Think time of the user With our measurements the CPU/DS was 0.473 for the java server and 0.034 for the DB and the SAPS rating for 1 CPU is 2070/2=1035. Assumed, we have 150 users with an average think time of 60 sec, a total of 2013 SAPS are required type TT # users SAPS of CPU CPU/DS SAPS Result server 60 150 1035 0.473 1883 db 60 150 1035 0.034 135 3 SAPS is a hardware independent unit used to describe the CPU related performance characteristics of a given hardware configuration. For additional information on SAPS and their equivalent hardware performance, see www.sap.com/benchmark -> SAPS SAP AG Sizing SAP Guided Procedures - SAP Customers and Partners 4
Based on these exemplary measurement the following guideline can be summarized: Category Up to Concurrent Users SAPS java CPU SAPS DB Physical Memory in GB* XS S M L XL XXL 150 1500 120 6 570 6000 450 24 1100 12000 900 48 1750 18500 1400 74 2600 27500 2100 110 contact SAP or hardware vendor *Ask your DB vendor for memory requirements for the database server. SAP AG Sizing SAP Guided Procedures - SAP Customers and Partners 5
3 Miscellaneous Measurements are done in NW04s SP13.Possible changes expected in further Support Packages Performance, Benchmarks, and Sizing Performance http://service.sap.com/performance Benchmarks http://sap.com/benchmark General sizing information http://service.sap.com/sizing Quick Sizer http://service.sap.com/quicksizing 4 Comments and Feedback This guide was created by Chavdar Ivanov and was approved by Anton Andonov. Please provide your comments and feedback, which both are very welcome, to: Anton Andonov at anton.andonov@sap.com Chavdar Ivanov at chavdar.ivanov@sap.com, Berndt.Woerner@sap.com and Ginger.Gatling@sap.com.. SAP AG Sizing SAP Guided Procedures - SAP Customers and Partners 6