IBM Systems Magazine, Mainframe Edition - November/December 2011 - 39

Speed and scalability give it the EXTRA KICK to excel at any workload
By Gary King

instruction cache and a 128 KB data cache, plus a 1.5 MB L2 cache used for instructions and data.
Memory-hierarchy “nest” design.

S

ince its introduction, the IBM zEnterprise 196* has gained a reputation as an outstanding system for any workload. Applications exploiting CICS*, IMS*, DB2*, WebSphere* MQ, WebSphere, and running numerous Linux* on System z* guests under z/VM* are just some of the environments where the z196 excels. An IT executive from the health insurance sector, using the mainframe for large-scale applications, noted, “The z196 is exceeding expectations across the board.” A senior manager at an IT services company using multiple z196s to support a diverse mix of internal and external clients states, “The z196 met our needs very well.” And an industry consultant reports, “The z196 has gotten rave reviews.” Performance highlights include a 30- to 50-percent faster execution rate than the z196’s predecessor, the System z10* server. Its maximum configuration delivers in excess of 60 percent more capacity than a System z10 server, achieving a MIPS rating greater than 50,000. The performance of individual workloads moving to the z196 is less variable than those to the z10, resulting in more consistency in billing and chargeback.

top clock speed in the industry. It has a superscalar, out-of-order pipeline that can decode up to three instructions and execute up to five operations in a single clock cycle. It can implement more than 100 new instructions beyond what the System z10 platform supported, providing the opportunity for exploitation by compilers and applications for even further performance gains. One processor chip has up to four processor cores. Each core has two levels of private cache—an L1 consisting of a 64 KB

Aprocessor’s memory hierarchy generally refers to the caches, data buses and memory arrays that stage the instructions and data needed to be executed on the microprocessor to complete a transaction or job. For System z, the memory-hierarchy nest is further defined to be that part of the memory hierarchy beyond the private-to-each-core caches. The z196 has extensive improvements in this area compared to the System z10. A new level of shared cache on the processor chip is introduced. This 24 MB L3 cache is shared among all of the cores on a processor chip. Six processor chips are packaged together in a multichip module (MCM) or book. An L4 cache of

Diverse Workloads So, what’s the secret of its success? The z196 has the fastest microprocessor in the industry and a memory-hierarchy “nest” to match. Thus, whether a workload is monolithic and compute-intensive or diverse and memory-intensive, the z196 is a good match. Take a deeper look into what makes the z196 hum: Microprocessor design. The z196 microprocessor runs at 5.2 GHz, the
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ILLUSTRATIONS BY TYSON MANGELSDORF

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IBM Systems Magazine, Mainframe Edition - November/December 2011

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe Edition - November/December 2011

IBM Systems Magazine, Mainframe Edition - November/December 2011
Contents
On the Web
Editor’s Desk: Cool Again
Insider: With the Right Strategy and Tools, Businesses Can Capitalize on Big Data
IT Today: New IMS 12 Offers Flexibility and Support for Business Growth
Focus on Storage: IBM Health Checker Adds Features to Maintain Best Practices
Trends: Emerging Enterprises Know System z Can Help Them Compete Globally
Cover Story:The Mainframe is Entering New Markets and Encouraging New Uses
Feature: System z Delivers a Solid Platform for Mission-Critical Business Applications
Feature: Speed and Scalability Give the z196 the Extra Kick to Excel at Any Workload
Developer: While Critical to Success, Project Scoping Is Often Overlooked
Tech Corner: Systems Director SDK Leverages Language-Independent REST
Solutions
Resources: Advertisers’ Index
Stop Run: Miguel Gallego’s Love of Building Things Led Him to a Career as an IMS Enterprise Architect
Reference Point
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Intro
IBM Systems Magazine, Mainframe Edition - November/December 2011 - IBM Systems Magazine, Mainframe Edition - November/December 2011
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Cover2
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 1
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 2
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 3
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Contents
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 5
IBM Systems Magazine, Mainframe Edition - November/December 2011 - On the Web
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 7
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 8
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 9
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Editor’s Desk: Cool Again
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 11
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Insider: With the Right Strategy and Tools, Businesses Can Capitalize on Big Data
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 13
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 14
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 15
IBM Systems Magazine, Mainframe Edition - November/December 2011 - IT Today: New IMS 12 Offers Flexibility and Support for Business Growth
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 17
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 18
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 19
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Focus on Storage: IBM Health Checker Adds Features to Maintain Best Practices
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 21
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 22
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 23
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Trends: Emerging Enterprises Know System z Can Help Them Compete Globally
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 25
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 26
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 27
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Cover Story:The Mainframe is Entering New Markets and Encouraging New Uses
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 29
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 30
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 31
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 32
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 33
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Feature: System z Delivers a Solid Platform for Mission-Critical Business Applications
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 35
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 36
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 37
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Feature: Speed and Scalability Give the z196 the Extra Kick to Excel at Any Workload
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 39
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 40
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Developer: While Critical to Success, Project Scoping Is Often Overlooked
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 42
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 43
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Tech Corner: Systems Director SDK Leverages Language-Independent REST
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 45
IBM Systems Magazine, Mainframe Edition - November/December 2011 - 46
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Resources: Advertisers’ Index
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Stop Run: Miguel Gallego’s Love of Building Things Led Him to a Career as an IMS Enterprise Architect
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Cover3
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Cover4
IBM Systems Magazine, Mainframe Edition - November/December 2011 - Reference Point
IBM Systems Magazine, Mainframe Edition - November/December 2011 - BG1
IBM Systems Magazine, Mainframe Edition - November/December 2011 - BG2
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