Transcript Gemma F. Durany SAP AG Memory Based

Memory Based
Computing
Gemma F. Durany
SAP AG
 SAP AG 1998
®
Memory Based Computing (Gemma F. Durany) 12.06.98 / 1
Memory Based Computing
Platform Overview
Technical Aspects
New Technologies
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 2
Openness: R/3 Technology Environment
Hardware
UNIX Systems
Bull
IBM
Digital
SNI
HP
SUN ...
Operating
Reliant
AIX
systems Digital UNIX UNIX (SINIX)
HP-UX
Databases
Dialog
SAP-GUI
Internet
Applications
Bull/Zenith
Compaq
Data General
...
Digital
NCR
HP (Intel) Sequent
IBM (Intel) SNI
Windows NT
IBM
AS/400
IBM
S/390
OS/400
OS/390
DB2 for
OS/400
DB2 for
OS/ 390
SOLARIS ...
ADABAS D
DB2 for AIX
INFORMIX-OnLine
ORACLE
ADABAS D
MS SQL Server
INFORMIX-OnLine
ORACLE
Windows 3.1, Windows 95, Windows NT,
OSF/Motif, OS/2 Presentation Manager (PM),
Macintosh, Net PC, NC
Windows NT,
Windows 95,
PM, Net PC, NC
Microsoft Internet Information Server,
Netscape Server (Windows NT Server 4.0)
Languages
ABAP/4, C, C++, HTML Java, ActiveX-Controls
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 3
®
Platform Overview
 Most platforms plan a transition to 64 bit technology
 R/3 on DIGITAL UNIX on 64 bit since 1992:



64 bit Operating System
64 bit Database
64 bit R/3 Kernel and application server
 R/3 on AS/400 on 64 bit since 1995:



DB2/400 full integrated in OS/400
64 bit Operating System and Database
64 bit R/3 Kernel and application server
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 4
Platform Overview
 Most UNIX Platforms are on 64 bit technology today
 Databases complete their 64 bit transition soon
 R/3 is ready for the transition to 64 bit
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 5
Memory Based Computing
Platform Overview
Technical Aspects
New Technologies
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 6
Technical Aspects
 64 bit Memory Management:






No more 4 GB address space limitations
4 BILLION TIMES MORE ADDRESS SPACE !
Applications can access terabytes of disk and memory
Higher profitability of memory resources
System management becomes easier
Bigger database tables and index data:



Less archiving
Less reorganization
Design simplification of large applications
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 7
Technical Aspects
 64 bit Performance :

Faster low level operations
Faster memory mapped file access, caching and swapping

Faster analysis of bigger amounts of data

®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 8
Technical Aspects
 Advantages for R/3 on 64 bit:

Unlimited R/3 user context
Unlimited addressing capabilities for R/3 memory objects

+ 40 % overall performance win for R/3

 SAP is always ready for new technologies
 SAP is flexible
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 9
Memory Based Computing
Platform Overview
Technical Aspects
New Technologies
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 10
New Technologies
 No memory based computing:


Typical C/S implementation
Extensive resource requirements
User
context
User
context
User
context
Application
data
Application
data
Application
data
Shared
database
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 11
New Technologies
 First step to memory based computing:


Buffering with R/3 2.0 to reduce disk I/O
First level memory based computing
User
context
User
context
User
context
Buffered,
shared
application
data
Shared
database
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 12
New Technologies
 Second step to memory based computing:

Buffering with R/3 3.0 to reduce disk I/O
Faster user context switch

Advanced memory based computing

User
Useruser
Buffered
context
context
context
Buffered,
shared
application
data
Shared
database
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 13
New Technologies
 The latest in Memory Based Computing:


Buffering with liveCache
Optimized and Synchronized data structures allow for a new
type of business functionality
User
User
Buffered user
context
context
context
Buffered,
shared
application
indep.data liveCache
Buffered,
shared
applicationspecific
data
Shared
database
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 14
New Technologies
 What is liveCache ?



A memory resident object management technology which
allows new business processes through real time processing of
vast amounts of data using very large memory and parallel
processing
Application data in memory:
 Optimized for use of large memory
 Ready to exploit 64 bit computing !
Enables business processes not possible before due to
performance and memory limitations
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 15
New Technologies
 Example:

80-95% of product planning run is database I/O
liveCache holds large amounts of data in main memory

Supply chain planning in minutes rather than hours !

 Lots of other possible 64 bit based new technologies
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 16
Welcome to SAP
 More information in SAPNet : www.sap.com
 Our address:


Postfach 1461, 69185 Walldorf
Neurottstraße 16, 69190 Walldorf
®
 SAP AG 1998
Memory Based Computing (Gemma F. Durany) 12.06.98 / 17