IBM's latest COBOL offerings, Enterprise COBOL for z/OS V6.1 and Automatic Binary Optimizer for z/OS V1.1, provide improved performance, scalability, and new features to modernize business critical COBOL applications. Enterprise COBOL V6.1 enhances scalability to compile and optimize very large COBOL programs and delivers release-to-release performance improvements of up to 5% through full support for the latest z13 and z13S hardware. The Automatic Binary Optimizer provides optimization of existing COBOL binaries without requiring source changes. Migrating from older compilers requires more work than previous migrations due to changes in system setup and syntax.

1. Elevating Application Performance with
the latest IBM COBOL Offerings
Kevin Stoodley, IBM Fellow and CTO: z Systems Software
Annette Keenleyside, Program Director, Compilers - Offering Management, Development and Support

2. Please Note:
1
• IBM’s statements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s sole
discretion.
• Information regarding potential future products is intended to outline our general product direction and it should not be relied on in
making a purchasing decision.
• The information mentioned regarding potential future products is not a commitment, promise, or legal obligation to deliver any
material, code or functionality. Information about potential future products may not be incorporated into any contract.
• The development, release, and timing of any future features or functionality described for our products remains at our sole discretion.
• Performance is based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual
throughput or performance that any user will experience will vary depending upon many factors, including considerations such as the
amount of multiprogramming in the user’s job stream, the I/O configuration, the storage configuration, and the workload processed.
Therefore, no assurance can be given that an individual user will achieve results similar to those stated here.

3. Compilers on z Systems - Overview

4. Value of IBM Compilers on z Systems
• Reduce CPU utilization by improving performance of applications
• Exploitation of z/Architecture (z10, z196, zEC12, zBC12, z13, z13s)
• Advanced Optimization
• Support next-generation Applications
• Modernize business critical System of Record applications to support new
System of Engagement applications (e.g. web, mobile, cloud…)
• Support latest IBM Middleware (CICS, IMS, DB2…)
• Improve Productivity
• New programming features
• New problem determination features
3

5. Compilers on z Systems
 Enterprise COBOL for z/OS v6.1
 Automatic Binary Optimizer for z/OS v1.1
 Enterprise PL/I for z/OS v4.5
 z/OS v2.2 XL C/C++
 XL C/C++ for Linux on z Systems v1.2
4
NEW!
NEW!
NEW!

6. Compilers on z Systems
5
• Optional feature of z/OS 2.2
• Provides system programming
capabilities with Metal C option
• Fully Supports z/Architecture,
including z13 & z13s processors
• Ships with High performance
Math Libraries tuned for z13
z/OS V2.2
XL C/C++
Enterprise PL/I
for z/OS V4.5
• Critical Business Language –
Committed to invest in leading-
edge technology
• Shipped a new release every
year since 1999
• Fully Supports z/Architecture,
including z13 & z13s processors
• Provide full support for JSON
(Parse, Generate, and Validate)
*Up to 17%reduction in
CPU time*
*Up to 24% increase in
throughput*
XL C/C++ for Linux
on z Systems V1.2
• New compiler based on Clang
and IBM optimization technology
• Fully Supports z/Architecture,
including z13 & z13s processors
• Provide easy migration of C/C++
applications to System z
• World Class service and support
provided by IBM
*Up to 14% increase in
performance over GCC*
* The performance improvements are based on internal IBM lab measurements. Performance results for specific applications will vary, depending on the source code,
the compiler options specified, and other factors

7. New COBOL Technologies on z
Systems

8. Evolution of IBM COBOL
7
OS/VS COBOL
(Ann: 1960s)
•ISO COBOL 68
& 74 Standards
VS COBOL II
(Ann: 1980s)
•New technology
base; Not
compatible with
OS/VS COBOL
•ISO COBOL 85
Standard
•31 bit addressing,
Reentrancy,
DBCS…
COBOL/370,
COBOL for MVS
& VM; COBOL
for OS/390 & VM
(Ann: 1990’s)
•Language
Environment
•Intrinsic functions
•Debug Tool
•Dynamic
Libraries, USS,
DB2
coprocessor…
Enterprise
COBOL V3 (Ann:
2001-2005)
•Unicode
•Native Java & XML
•CICS & DB2 co-
processors; IMS
Java regions
•Debugging of
production code
with Debug Tool
•Data item limits
raised to 128MB
(from 16 MB)
Enterprise
COBOL V4 (Ann:
2007-2009)
•XML System
Services parser
•DB2 9 SQL
support with
coprocessor
•Java 5 & 6 support;
•UNICODE
performance
improvement
•Improve debug
support for
optimized code
Enterprise
COBOL V5
(Ann: 2013)
•New advanced
Optimization
Framework
•New COBOL
Runtime
•DWARF
Debugging format
•Exploits Program
Object
•New COBOL
2002 Language
Features
•Generates SMF
89
Enterprise
COBOL V6
(Ann: 2016)
•Enhanced
Scalability –
Compile and
Optimize very
large COBOL
programs
•Native JSON
“Generate”
•New COBOL
2002
Language
Features
•Enhanced
Migration Help
New Lang. Standard
31-bit addressing…
LE, Debug,
USS…
Application Modernization
Middleware Interoperability
Internationalization
Day 1 z Processer Support
Rel-Rel Performance Improvement
New COBOL Language Features
App. Modernization Features

9. Exploiting z/Architecture
8
zEC12/zBC12
Arch(10)
•Decimal-Floating-
Point Zoned-
Conversion
Facility…
z13/z13s
Arch(11)
•Decimal-Floating-
Point Packed-
Conversion Facility
•SIMD instructions…
z10EC/z10BC
Arch(8)
• Decimal Floating
Point (DFP)
• Wider immediate
data
z196/z114
Arch(9)
• Distinct Operand
• Conditional Load
• High Word
Instructions
Default ARCH level is now ARCH 7 - IBM System z9EC (2094-xxx models) IBM System z9 BC (2096-xxx models)

10. COBOL Offerings on z Systems
• 2 Complementary Offerings to help clients improve performance of
business critical COBOL applications
• Enterprise COBOL for z/OS
– Compile and Optimize COBOL source code
• Automatic Binary Optimizer for z/OS
– Optimize existing binaries (load modules) compiled with Enterprise
COBOL V3 and V4
9
NEW!

11. Enterprise COBOL for z/OS V6.1
NEW!

12. Recap: Enterprise COBOL V5
• New Optimization Framework
• z/Architecture exploitation and Advance Optimization
• Improve application performance and reduce CPU utilization
• New COBOL Runtime
• New Object and Debug formats
• Program Objects - Requires PDSE
• Industry standard DWARF debug format
• Maintains source and binary compatibility
• Correct COBOL programs will compile and execute without changes and produce the same results
• “Old” and “new” code can be mixed within an application
• Removed some old language extensions and options
• Supports the ecosystem of programming tools supplied by IBM and ISVs.
11

13. Customer Experiences
12
• Strong customer adoption
• Positive feedback on performance of batch applications
• CPU reduction of 10% to 20%
• Best case: CPU reduction over 60% (Elapsed time reduction over
70%) – reported by a major FSS customer in US
• Clients sharing experiences at conferences
“This is the biggest COBOL conversion in more than a decade…New compiler uses significantly more CPU and
virtual storage during the compile process but generates programs that in many cases run more efficiently than any
prior COBOL compiler
“Enterprise COBOL Version 5 User Experience”, Brian Peterson, UnitedHealth Group, Share 2015
After recompiling COBOL Programs with COBOL V5, average CPU consumption decreased 12% (Before 0.0283,
After 0.0249), # of transactions processed increased 56% (Before 18.471 After 28,799)
“Modernizing the Mainframe”, Craig Whitaker, Humana, Impact 2014

14. Enterprise COBOL for z/OS V6.1
• Announced: Feb 16; GA: Mar 18
• Improved Scalability
– Expanded capacity to compile and optimize very large COBOL programs (e.g. source output from
COBOL code generators)
– Compiler is now itself a 64-bit application utilizing increased address space and memory to
optimize large 31-bit COBOL programs
• Deliver release-to-release performance improvements
– Fully supports z13 and z13S hardware
– Well-structured, compute intensive batch applications running on z13 compiled with COBOL V6.1
have shown CPU time reduction of up to 5% over the same applications compiled with COBOL
V5.2; up to 40% over the same applications compiled with COBOL V4.2 1
13
1 Performance results are based on an internal IBM compute-intensive test suite. Performance results from other applications may vary.
“Our experience with a beta version of COBOL V6.1 shows that this compiler allows us to successfully compile very
large COBOL modules previously limited by COBOL V5. The new 64-bit infrastructure in COBOL V6.1 liberates the
full functionality of the compiler in every scenario we’ve tried.”
A COBOL DPP participant.

15. Enterprise COBOL for z/OS V6.1 – New Features
• New capability to generate JSON documents directly from COBOL
– Extend business critical (System of Record) applications written in COBOL to support
mobile (System of Engagement) application where preference is REST/JSON
• COBOL 2002 language features
– ALLOCATE and FREE
– Enhanced INITIALIZE
– File status updates
– Reduced memory required for Table SORT
• Improved migration from COBOL compilers prior to Enterprise COBOL V5
– Improved reporting on invalid data and out of bounds checks to help clients detect
errors in existing source
14

16. 15 15
Exploiting zEC12 – Example
Decimal Divide Where Operands Exceed Packed Decimal Hardware Limits
1 z14v2 pic s9(14)v9(2).
1 z13v2 pic s9(13)v9(2).
...
Compute z14v2 = z14v2 / z13v2
V6
• Inlined with 6 instructions
• CDZT/CZDT are new zEC12 instructions to
convert between zoned and DFP types
• ARCH (10)
CDZT FP0,152(16,R8),0x8
CDZT FP1,168(15,R8),0x8
SLDT FP0,FP2,2
DDTR FP0,FP0,FP1
FIDTR FP0,9,FP0
CZDT FP0,152(16,R8),0x9
V4
• Calls out to library routine
• Runtime path length is > 100 instructions
PACK 344(9,13),0(16,2)
PACK 360(16,13),16(15,2)
MVC 376(32,13),59(10)
MVC 398(9,13),344(13)
NI 406(13),X'F0'
MVN 407(1,13),352(13)
L 3,92(0,9)
L 15,180(0,3)
LA 1,146(0,10)
BASR 14,15
NI 431(13),X'0F'
ZAP 431(9,13),431(9,13)
UNPK 0(16,2),431(9,13)
Timing (100 million in a loop)
V6.1 : 1.08 cpu seconds
V4.2 : 4.81 cpu seconds
V6 is ~4.5X faster
15

17. Exploiting z13 – Example
PACKED-DECIMAL (COMP-3) faster with Decimal Floating Point
V6.1 – ARCH 11
CXPT FP0:FP2,152(13,R8),0x8
CXPT FP1:FP3,165(13,R8),0x8
DXTR FP4:FP6,FP0:FP2,FP1:FP3
FIXTR FP0:FP2,9,FP4:FP6
CPXT FP0:FP2,178(13,R8),0x9
AHI R2,0xffff
CIJ R2,L0034,0,HT(mask=0x2),
V5.1 – ARCH10
XGR R0,R0
ICMH R0,X'1',152(,R8) # A
L R0,153(,R8) # A
LG R1,157(,R8) # A
CXSTR FP0,R0
XGR R0,R0
ICMH R0,X'1',165(,R8) # B
L R0,166(,R8) # B
LG R1,170(,R8) # B
CXSTR FP1,R0
DXTR FP4:FP6,FP0:FP2,FP1:FP3
FIXTR FP0:FP2,9,FP4:FP6
CSXTR R0:R1,0,FP0:FP2
STCMH R0,X'1',178(,R8) # C
ST R0,179(,R8) # C
STG R1,183(,R8) # C
ZAP 178(13,R8),178(13,R8) # C
AHI R2,0xffff
CIJ R2,L0034,0,HT(mask=0x2),
Timing (100 Million times in a loop)
V5.1 : 2.53 cpu seconds
V6.1 : 1.64 cpu seconds (1.5Xfaster)
WORKING-STORAGE SECTION.
01 VARS.
02 A PIC S9(25) COMP-3 VALUE +1234567890123456789012345.
02 B PIC S9(25) COMP-3 VALUE +2468097531246809753124680.
02 C PIC S9(25) COMP-3 VALUE 0.
PROCEDURE DIVISION.
PERFORM 100000000 TIMES
DIVIDE A BY B GIVING C
END-PERFORM
16

18. 17 17
Exploiting z13 – Example
INSPECT ... TALLYING faster with SIMD
V6.1– ARCH 11
LHI R0,0xfe
XR R1,R1
LA R12,152(,R8) # STR
VREPIB VRF27,0x40
VGBM VRF25,0x0
L0066: EQU *
VLL VRF24,R0,0(,R12) #
AHI R12,0x10
VCEQB VRF24,VRF24,VRF27
AHI R0,0xfff0
VLCB VRF24,VRF24
VAB VRF25,VRF25,VRF24
JNL L0066
VGBM VRF26,0x0
VSUMB VRF25,VRF25,VRF26
VSUMQF VRF25,VRF25,VRF26
VLGVG R1,VRF25,1(,R1) #
A R1,407(,R8) # C
ST R1,407(,R8) # C
V5.1 – ARCH10
LHI R0,0xff
XR R1,R1
LA R12,152(,R8) # STR
L0064: EQU *
CLI 0(,R12),X'40' #
JNOP L0066
LA R1,1(,R1) #
L0066: EQU *
LA R12,1(,R12) #
BRCT R0,L0064
A R1,407(,R8) # C
ST R1,407(,R8) # C
Timing (100 Million times in a loop)
V5.1 : 46.63 cpu seconds
V6.1 : 1.54 cpu seconds 30X faster
WORKING-STORAGE SECTION.
01 VARS.
02 STR PIC X(255).
02 C PIC 9(5) COMP-5 VALUE 0.
PROCEDURE DIVISION.
MOVE ALL 'abc def ghi jkl ' TO STR
PERFORM 100000000 TIMES
INSPECT STR TALLYING C FOR ALL ' '
END-PERFORM
STOP RUN.
17

19. Migrating to COBOL V6.1
• Migrating from older compilers (COBOL V4 or older) to V6 (or V5)
– Requires more work than migrating from COBOL V3 to COBOL V4 - Need advance planning
• System setup (e.g. PDSE, memory requirements…)
• Identifying and resolving old syntax removed in COBOL V5
• Migrating applications compiled by OS/VS COBOL and VS COBOL II NORES to Enterprise COBOL
• Re-compile
• Regression Test…
… But this is a One time investment… and there are tools to help (e.g. RDz, new Compile options…)
• Migrating from COBOL V5 to V6
– Similar to migrating from COBOL V3 to COBOL V4 – Very straightforward
Consult Migration Guide http://www-01.ibm.com/support/docview.wss?uid=swg27036733 or ask your
IBM rep. to arrange a Migration Workshop
18

20. Rational Developer for System z (RDz) - support for COBOL Migration
• Editor support for new syntax
– Content Assist
– Real-time syntax check
– Option to flag obsolete syntax
• Built in rules to identify obsolete language for Code Review
• Scan COBOL source for compatibility of function calls
– Detects compatibility of parameters passed between the calling program and the
called program
19

21. •Only toolset that exploits DWARF debugging format
which has good support for debugging of optimized code
–Debug information is stored in “no load” section of
program object
• Simplifies the management of side files. Eliminates the
possibility of side file mismatch
• No impact to size of program object - DWARF information is
not loaded while program executes normally. Only read from
the file when it is required.
•Application Performance Analyzer for z/OS, Debug Tool
for z/OS and Fault Analyzer for z/OS fully exploit the new
DWARF format.
•File Manager for z/OS supports COBOL V5 and V6 level
COPYBOOKs.
IBM PDtools best supports COBOL V5 & V6
Source
Load
module
Compiler
listing/sysdebug
Compiler
PD Tools
Source
Compiler
PD Tools
DWARF
Program
Object
Before COBOL V5
After COBOL V5
20

22. Automatic Binary Optimizer for
z/OS V1.1
NEW!

23. IBM Automatic Binary Optimizer (ABO) for z/OS
• ABO improves performance of already compiled COBOL v3 & v4 programs
• Optimize directly from the compiled program
• No source level migration or recompilation or options tuning required
• Leverage latest advanced COBOL optimization technology
• Generate code to target latest z Systems (e.g. zEC12,zBC12 & z13, z13s)
• Support in z/OS® 2.2 to automatically load optimized modules to target latest z Systems
ABO
Original Program Binaries
(Base ESA390)
Optimized Program Binaries
(Latest z Systems)
Available November 6th 2015 – z/OS 2.2; February 19th 2016 – z/OS 2.1
http://www-03.ibm.com/software/products/en/z-compilers-optimizer
22

24. ABO – Architecture Exploitation
23
ARCH(0)
ARCH(…)
ARCH(11)
z13/z13s
All Pre-V5 COBOL compiler releases
generated only base ESA/390 level
code
ABO generates code up to z13/z13S
ARCH(11)
•Using ABO on COBOL v3 and v4 allows
applications to access over 600 new
hardware instructions already on clients’
machines
Original Compiled
Programs
Optimized
Programs

25. ABO or COBOL V5 ?
• Answer : Both (They serve different but complementary purposes)
Use Case ABO COBOL V5
Significant Performance Improvement*
*No Source, Migration or Options Tuning Required

Interoperability/Legacy Compatibility
PDS supported, pre-Enterprise COBOL etc.

Built in Support for Targeting Multiple Hardware Levels At Deployment 
No need to downgrade ARCH setting to match DR* machine
Original compiled program always available for DR

New COBOL development and new features 
Maintenance on existing COBOL programs 
Maximum Performance Improvement*
*Source, Migration and Options Tuning Required

*DR  Disaster Recovery Machine : Down level machine used for emergency situations. Usually 1 or 2 revisions old so puts limits
on Compiler ARCH setting (and performance improvements possible) based on this older level
24

26. • Unbind
• Binary  IR*
Verify
• Optimize
• Optimize
• Optimize…
Verify • IR Binary
• Rebind
Done
Global Optimization
Optimized
Executable
CSECT1 … CSECTN
Original
Executable
CSECT1 … CSECTN
*IR - Intermediate Representation
ABO
25

27. Compatibility and Testing
ABO consumes the original
binary so the exact behavior
of the original program is
known vs the documented
“correct” behavior when
compiling from source
No compile options
(performance or otherwise)
are changing
The optimized program
looks/behaves as the
original program from the
outside (but faster!) so no
interoperability concerns
with other programs
Strong compatibility guarantee for the modules produced by ABO
Focus should be on performance and scalability (less on business logic)
If something goes wrong, revert to using original program
Testing
Inter-
operability
Options
Unchanged
Binary As
Input
Users can optimize objects in test environment and to deploy static executable to production environment
26

28. ABO Performance
Internal Benchmark Suite and Early Customer Results
Early customer results show performance gains of 5% to 21% for a mix of v3 and v4 compiled
input programs
Internal Benchmarks: Mix of Compute and I/O Bound Applications
ABO showed up to 34% performance improvement of over COBOL V4.2 on z13
*Performance data contained herein was generally obtained in a controlled, isolated environments. Customer examples are presented as illustrations
of how those customers have used IBM products and the results they may have achieved. Actual performance, cost, savings or other results in other
operating environments may vary.
Overall: 15% average performance improvement on applications
compiled with Enterprise COBOL V3 or V4
27

29. ABO Example – Numeric Edited MOVE – 2.35x Faster
01 WS-VAR-1 PIC S9(9)V99 COMP-3.
01 WS-VAR-2 PIC ZZZ,ZZZ,ZZ9.99.
MOVE WS-VAR-1 to WS-VAR-2
Automatic Binary Optimizer
• Decompose edit behavior to a longer but much faster
sequence
TP 0(6,R4)
...
UNPK 340(11,R10),0(6,R4)
IIHF R1,1075847200
OI 350(,R10),X'F0'
IILF R1,1797267488
...
ICM R1,X'3',349(,R10)
CDPT FP0,0(6,R4),0x8
STCM R1,X'7',284(,R5)
...
V4 OPT(FULL)
• Uses traditional ED (edit) instruction
MVC 272(15,13),103(10)
L 2,300(0,9
ED 272(15,13),0(2)
MVC 8(14,2),273(13)
28

30. ABO Example – Decimal To Float MOVE – 3.97x Faster
01 WS-VAR-1 PIC S9(7)V99.
01 WS-VAR-2 comp-2.
MOVE WS-VAR-1 to WS-VAR-2
Automatic Binary Optimizer
• Decimal to float conversion is inlined using a more
efficient algorithm
CVB R0,340(,R10)
LD FP8,256(,R7)
CXFR FP0,R6
DXR FP4,FP8
...
AXR FP4,FP0
LDXR FP0,FP4
V4 OPT(FULL)
• Library Call for decimal to float conversion
• Runtime path length is > 100 instructions
L 3,92(0,9)
L 15,268(0,3) V(IGZCFPC )
LA 1,227(0,10)
BASR 14,15
MVC 16(8,2),272(13)
29

31. • Increase performance of COBOL applications
• Lowers cost of all MLC software by driving down peak 4HRA workload (MSU)
ABO – Economics
MLC cost is
calculated based
on peak 4HRA
workload (MSU)
COBOL
Applications
DB2
CICS
.
.
.
No ABO With ABO
Increasing
performance of
COBOL
Applications
lowers peak 4HRA
workload (MSU).
Lowers overall
MLC cost for entire
system
Peak
4HRA
Peak
4HRACOBOL
Applications
With ABO
Increasing
performance of
COBOL
Applications
lowers processing
time and releases
capacity for other
workloads
Peak
4HRA
COBOL applications drive peak
4HRA
COBOL applications run in “grey
area”
.
.
.
DB2
CICS
CICS
DB2
COBOL
Applications
.
.
.
30

32. Tooling Support For The Optimized Modules
• What is changing in the optimized modules:
– New instructions will replace the original instructions
– An additional program literals area is created for use by the new instructions
– New language ID entries, timestamps and other metadata
• What is not changing in the optimized modules :
– All control blocks and data areas (e.g. TGT, DSA, working/local storage, original program literals)
remain unchanged
• What ABO provides to support tooling enhancements:
– A ‘listing transform’ to map original offsets/instructions to new offsets/instructions
– Retaining original metadata (e.g. language ID, timestamps, info signature bytes) in the optimized
module
– New PPA4 section with information about the optimized module
31

33. COBOL v4.2 compiler listing:
000027 COMPUTE
00042C F247 D110 8000 PACK 272(5,13),0(8,8) TS2=0 WS-
VAR-1
000432 960F D114 OI 276(13),X'0F' TS2=4
000436 F247 D118 8008 PACK 280(5,13),8(8,8) TS2=8 WS-
VAR-2
00043C 960F D11C OI 284(13),X'0F' TS2=12
000440 FA44 D110 D118 AP 272(5,13),280(5,13) TS2=0 TS2=8
000446 F374 8010 D110 UNPK 16(8,8),272(5,13) WS-VAR-3 TS2=0
00044C 96F0 8017 OI 23(8),X'F0' WS-VAR-3+7
Listing Transform:
00042C PACK 272(5,13),0(8,8)
000432 OI 276(13),15
0004C4 ED07 4000 00AA 00042C CDZT FP0,_WSA[0x12c]
0(8,R4),0x0
000436 PACK 280(5,13),8(8,8)
00043C OI 284(13),15
0004CA ED07 4008 10AA 000436 CDZT FP1,_WSA[0x12c]
8(8,R4),0x0
000440 AP 272(5,13),280(5,13)
0004D0 B3D2 1000 000440 ADTR FP0,FP0,FP1
000446 UNPK 16(8,8),272(5,13)
00044C OI 23(8),240
0004D4 ED07 4010 00A8 00044C CZDT FP0, 16(8,R4),0x0
COBOL Program:
000027 COMPUTE WS-VAR-3 = WS-VAR-1 + WS-VAR-2.
Input “source” instructions. Starts at column 1
Optimized Instructions. Starts at column 5
LEGEND:
Source Line number in original program.
CSECT offset of instruction generated by COBOL 4.2
Compiler
CSECT offset of instructions generated by ABO
Each optimized instruction generated is also
annotated with the “source” offset that it was
generated for
Allows tracking as instructions are re-ordered
Tooling Support For The Optimized Modules
Listing Transform Walkthrough
32

34. Tools & Middleware Support
• IBM Tools
– IBM PD Tools – Provides Day-1 support
• Fault Analyzer (FA)
• Provide ABEND analysis of optimized load modules
• Debug Tool (DT)
• Allows users to step through and debug optimized
programs interactively
• Application Performance Analyzer (APA)
• Allows users to compare the performance of original
programs and optimized programs
• ISVs Tools
– Working with Compuware, CA, Macro 4 on ABO support
• Middleware
– DB2, CICS, and IMS
APA
FA
DT
33

35. Future Possibilities for IBM COBOL are endless
• Technology framework provides a solid foundation for enabling new,
advanced optimizations and capabilities in both ABO and IBM COBOL
• Profile-driven optimizations
• Interprocedural Optimizations
• 64-bit COBOL implementation
• Exploitation of future hw instructions and features
• ABO
• More supported input binaries
• Dynamic optimization
• COBOL
• 64-bit language implementation
• Rich semantic information to enable more effective subsequent use of ABO
34

36. Summary
• Existing COBOL applications cannot fully benefit from new hardware features
– Impacts Application Performance (CPU utilization)
• IBM has 2 Complementary COBOL Offerings: Enterprise COBOL for z/OS and
Automatic Binary Optimizer
– Optimize COBOL applications to take full advantage of z/Architecture
• Most clients do not re-compile 100% of code when they upgrade hardware
– Continue to use COBOL compiler to compile source code that require changes
– Use ABO to optimize binaries of key parts of the application that are not recompiled
35

37. Developer Trials
Enterprise COBOL for z/OS V6.1
Automatic Binary Optimizer V1.1
• Zero cost evaluation license for 90 days
• Allows clients to assess the value of Offerings
– Offer same function as GA product
– Code processed by Developer Trials cannot be used for production
• Available as standard offering from IBM through ShopzSeries
• Contact your IBM representative for ordering assistance
36

38. Notices and Disclaimers
37
Copyright © 2016 by International Business Machines Corporation (IBM). No part of this document may be reproduced or transmitted in any form without written permission
from IBM.
U.S. Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM.
Information in these presentations (including information relating to products that have not yet been announced by IBM) has been reviewed for accuracy as of the date of
initial publication and could include unintentional technical or typographical errors. IBM shall have no responsibility to update this information. THIS DOCUMENT IS
DISTRIBUTED "AS IS" WITHOUT ANY WARRANTY, EITHER EXPRESS OR IMPLIED. IN NO EVENT SHALL IBM BE LIABLE FOR ANY DAMAGE ARISING FROM THE
USE OF THIS INFORMATION, INCLUDING BUT NOT LIMITED TO, LOSS OF DATA, BUSINESS INTERRUPTION, LOSS OF PROFIT OR LOSS OF OPPORTUNITY.
IBM products and services are warranted according to the terms and conditions of the agreements under which they are provided.
Any statements regarding IBM's future direction, intent or product plans are subject to change or withdrawal without notice.
Performance data contained herein was generally obtained in a controlled, isolated environments. Customer examples are presented as illustrations of how those customers
have used IBM products and the results they may have achieved. Actual performance, cost, savings or other results in other operating environments may vary.
References in this document to IBM products, programs, or services does not imply that IBM intends to make such products, programs or services available in all countries in
which IBM operates or does business.
Workshops, sessions and associated materials may have been prepared by independent session speakers, and do not necessarily reflect the views of IBM. All materials
and discussions are provided for informational purposes only, and are neither intended to, nor shall constitute legal or other guidance or advice to any individual participant or
their specific situation.
It is the customer’s responsibility to insure its own compliance with legal requirements and to obtain advice of competent legal counsel as to the identification and
interpretation of any relevant laws and regulatory requirements that may affect the customer’s business and any actions the customer may need to take to comply with such
laws. IBM does not provide legal advice or represent or warrant that its services or products will ensure that the customer is in compliance with any law

39. Notices and Disclaimers Con’t.
38
Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or other publicly available sources. IBM has not
tested those products in connection with this publication and cannot confirm the accuracy of performance, compatibility or any other claims related to non-IBM products.
Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products. IBM does not warrant the quality of any third-party products, or the
ability of any such third-party products to interoperate with IBM’s products. IBM EXPRESSLY DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The provision of the information contained h erein is not intended to, and does not, grant any right or license under any IBM patents, copyrights, trademarks or other intellectual
property right.
IBM, the IBM logo, ibm.com, Aspera®, Bluemix, Blueworks Live, CICS, Clearcase, Cognos®, DOORS®, Emptoris®, Enterprise Document Management System™, FASP®,
FileNet®, Global Business Services ®, Global Technology Services ®, IBM ExperienceOne™, IBM SmartCloud®, IBM Social Business®, Information on Demand, ILOG,
Maximo®, MQIntegrator®, MQSeries®, Netcool®, OMEGAMON, OpenPower, PureAnalytics™, PureApplication®, pureCluster™, PureCoverage®, PureData®,
PureExperience®, PureFlex®, pureQuery®, pureScale®, PureSystems®, QRadar®, Rational®, Rhapsody®, Smarter Commerce®, SoDA, SPSS, Sterling Commerce®,
StoredIQ, Tealeaf®, Tivoli®, Trusteer®, Unica®, urban{code}®, Watson, WebSphere®, Worklight®, X-Force® and System z® Z/OS, are trademarks of International Business
Machines Corporation, registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM
trademarks is available on the Web at "Copyright and trademark information" at: www.ibm.com/legal/copytrade.shtml.

40. Thank You
Your Feedback is Important!
Access the InterConnect 2016 Conference Attendee
Portal to complete your session surveys from your
smartphone,
laptop or conference kiosk.