power7 and aix7

8/6/2019 Power7 and Aix7

http://slidepdf.com/reader/full/power7-and-aix7 1/42

POWER7 and AIX 7Randy Swanberg, DE AIX Architecture

Power your planet.Smarter Systems for a Smarter Planet

© 2010 IBM Corporation

October 2010



Topics

Why AIX?AIX Power 7 Support

AIX Technology Highlight – Active Memory Expansion

© 2010 IBM Corporation2

AIX 7 Highlights



IBM’S 10-year march to UNIX leadership

35%

40%

45%UNIX Server Rolling Four Quarter Average Revenue Share

POWER6Live PartitionLive PartitionMobilityMobility

POWER5MicroMicro--PartitioningPartitioning

POWER7Workload OptimizedWorkload Optimized

dot.com bubble burst

global economic

recession

…the largest shift of customer spending in UNIX history


15%

20%

25%

30%

Q 1 0

0 Q

3 0 0

Q 1 0

1 Q

3 0 1

Q 1 0

2 Q

3 0 2

Q 1 0

3 Q

3 0 3

Q 1 0

4 Q

3 0 4

Q 1 0

5 Q

3 0 5

Q 1 0

6 Q

3 0 6

Q 1 0

7 Q

3 0 7

Q 1 0

8 Q

3 0 8

Q 1 0

9 Q

3 0 9

Q 1 1

0

HP Sun IBM

POWER4Dynamic LPARsDynamic LPARs



Why AIX is the Premier UNIX® Platform Today

Improved Efficiency through Virtualization

Outstanding Performance


Strong, stable, non-disruptive roadmap

Innovation through integrated Development



54% of IT executives and managers say that they require 99.99% or better availability for their applications

Power Systems with AIX deliver 99.997% uptime AIX & Power Systems delivers the best reliability of UNIX, Linux, and Windows

Cor orate Enter rise Downtime

R eliability : The fewest unscheduled outages•Less than one outage per year


Source: ITIC 2009 Global Server Hardware & Server OS Reliability Survey Results ,July 7, 2009 Fully paper is available at ibm.com/aix

Open Source Linux

HP UX 11/ HP Integrity

HP UX 11/ PA RISCSun Solaris / SPARC

IBM AIX POWER

Apple MAC

Red Hat EnterpriseWindows Server 2008Windows Server 2003

(Hours per Year)Availability : The least amount of downtime•15 minutes a year•2.3 times better than the closest UNIX competitor•More than 10X better than Windows

S erviceability : The fastest patch time•11 minutes to apply a patch



AIX Provides Leadership Security*


AIX Dropped off the list due to low vulnerabilities!

*X-Force report – Mid-year 2010 http://www-935.ibm.com/services/us/iss/xforce/trendreports/



AIX support for POWER7 LaunchFirst ever launch of a new generation of POWER serversthat does not require upgrade to a new AIX Technology Level!

AIX TLs 750, 755(2/2010)

770, 780(3/2010)

PS700,PS701,PS702(6/2010)

710, 720,730, 740,795(9/2010)

AIX 5.3 TL9 SP7 SP7 Not supported Not supported

710, 730

780720,740,750,755


AIX 5.3 TL10 SP4 SP4 SP5 SP5AIX 5.3 TL11 SP2 SP2 SP5 SP5

AIX 5.3 TL12 New TL New TL New TL SP1

AIX 6.1 TL2 SP8 SP8 Not supported Not supported

AIX 6.1 TL3 SP5 SP5 SP7 SP7

AIX 6.1 TL4 SP2 SP3 SP7 SP7AIX 6.1 TL5 New TL New TL New TL SP3

AIX 6.1 TL6 New TL New TL New TL New TL

AIX 7.1 New Version New Version New Version New Version

795

, ,

770



AIX P7 Exploitation

P6 MODE ( and P6+ )* P7 MODE Customer Value

2-Thread SMT 4-Thread SMT Throughput performance, processor coreutilization.

*

Compatible Mode ArchitectureLive LPAR Mobility


User Writeable AMR

,Application Key use.

VMX (Vector Multimedia Extension / AltiVec) VSX (Vector Scalar Extension) High Performance Computing.

Affinity OFF by Default CPU/Memory Affinity EnhancementsON by Default, HomeNode, 3-tier Memory,MicroPartition Affinity

Improved system performance for systemimages spanning sockets and nodes.

Barrier SynchronizationFixed 128-byte Array; Kernel Extension Access

Enhanced Barrier SynchronizationVariable Sized Array; User Shared Memory

Access

High Performance Computing ParallelProgramming synchronization facility.

64-core/128-thread Scaling 64-core / 256-thread Scaling256-core / 1024-thread Scaling

Performance and Scalability for Large Scale-Up Single System Image Workloads (e.g.OLTP, ERP scale-up, WPAR consolidation).

EnergyScale CPU Idle and Folding with NAP EnergyScale CPU Idle and Folding with NAPand SLEEP

Improved Energy Efficiency

N/A Active Memory Expansion Expand Existing Memory Capacity



P7 Simultaneous Multi-Threading

4 SMT threads – P5 and P6 Supported 2 SMT threads per

core

“IntelliThreads” – Spread work among cores to execute in

single threaded mode – Scheduling to Maximize Thread

Performance (T0 = ST, T0/T1 = SMT2,T0/T1/T2/T3 = SMT4)

LPAR-wide SMT controls


– ST, SMT2, SMT4 modes – smtctl command

XRSET - Exclusive RSET – CPU set that only allows attached

threads/processes – STRSET Attribute allows CPUs in RSET

to run ST mode



P7 Utilization Views

On P5 / P6, 1 busy thread made core appear fullyutilized

“useme” SMT thread gets 100%PURR charge, Idle thread gets 0%


2-core P5, 1 “useme” threadConsumes 50% of 2 CPUs

Available Capacity of Idle SMT thread inSMT2 Mode not apparent



P7 Utilization Views

P7 Adds Weighting of Idle SMT ThreadsThis view from SMT4 Mode

“useme” SMT thread gets 62% PURRcharge, Idle threads gets 13% each


2-core P7, 1 “useme” threadConsumes 31% of 2 CPUs

Shows while in SMT4 Mode that the core has more capacity todo work



POWER7 Storage Keys

POWER7 Extends the Granularity of Storage Key Protection – Up to 32 concurrent isolation domains (extends from 8 on P6, 16 on P6+)

• 7 of those available for User/App Keys (only 2 on P6) – Lightweight protection transitions for Applications (no system calls required)

• User Writeable AMR (Authority Mask Register)• Improved performance for apps exploiting keys

• No API changes, exploitation within system library (libc)AIX 6.1and 7.1 use Keys for Kernel Address Space Isolation/ProtectionApplications can leverage for more granular Data Isolation/ProtectionReference: Storage Protection Keys White paper

ftp://ftp.software.ibm.com/common/ssi/sa/wh/n/psw03013usen/PSW03013USEN.PDF


UserCode

UserData

Files

WS DB2KernelCode

KernelData

JFS2 LVM VMM . . . SCSI ENT FC . . . PPath Artic VxFS . . .

ApplicationAddress SpaceAIX Drivers Third Party DriversAIX Kernel

AIX Kernel Address Space



Active Memory Expansion – POWER7 and AIX 6.1/7.1

AMELPAR LPAR LPAR

LPAR LPAR LPAR

LPAR LPAR

LPAR

LPAR LPAR

LPAR

LPAR

LPAR

LPAR

LPAR LPAR LPAR

System PhysicalMemoryEnable more LPAR’s per server

– Existing LPAR’s physical memory sizes can be reduced – Free memory capacity can be used to create more LPAR’s

System PhysicalMemory

• Expand memory capacity through in-memory data compression• AIX compresses/decompresses data based on memory accesses• Memory compression is transparent to applications• Configurable via a new LPAR “memory expansion” attribute on Power7


LPAR LPAR

LPAR LPAR

LPAR

LPAR

LPAR LPAR LPAR

LPAR ….

Increase a LPAR’s effective memory capacity

– Active memory expansion can increase the effective memory capacity of a LPAR

– Enabling active memory expansion for a LPAR and keeping

the LPAR’s physical memory size unchanged increases the effective memory available to a workload AME

LPAR’s EffectiveMemory Capacity

Physical MemoryPhysical Memory

LPAR’s EffectiveMemory Capacity

ExpandedMemory Capacity

AME is an AIX based technology that will be offered as a P7 H/W feature



Without Active Memory ExpansionPartition utilization

– Memory: 100 % (18 GB) – CPU: 46% (12 cores in LPAR)

Memory capacity is the bottle-neck – CPU is under-utilized

With Active Memory ExpansionPartition utilization

– Memory: 100% (18 GB ) – CPU: 88% (12 cores in LPAR) Note: Most of the

CPU increase is due to additional throughput

Higher throughput enabled with the sameamount of physical memory

– Gain 37% memory capacity

AIX on POWER7 Advantage:SAP ERP Workload with Active Memory Expansion


Note: This is an illustrative scenario based on using a sample workload. This data represents measured results in a controlled labenvironment. Your results may vary.

Max Partition throughput: 99 tps1000 Simulated Users

12-core POWER7 partition

18 GB Memory18 GB true .0 GB expanded

Max Partition Throughput: 166 tps1700 Simulated Users+ 65%

Expanded Memory

12-core POWER7 partition

24.7 GB Memory18 GB true .6.7 GB expanded



AIX V2 & V3Establishment inthe market:

AIX V4.1/4.2SMP Scalability:-

AIX V4.3Higher levels of

scalability:

19861986--19921992 19941994--19961996 19971997--19991999

Flexible Resource

AIX Evolution – Over Twenty years of Progress

AIX/6000

AIX 7Future of UNIX:-256 core/1024 tread

2010201020012001--20022002

AIX 5L V5.3Advanced

Virtualization:

20042004--20052005

AIX 5L V5.1/5.2

20072007

AIX 6Enterprise RAS:-POWER6 support


Network Centric Computing

- RISC Support

- UNIX credibility- Open Sys. Stds..- Dynamic Kernel- JFS and LVM- SMIT

AIX V3.2.5

Maturity:- Stability- Quality

.- 4-8 way SMP- Kernel Threads- Client/Server pkg- NFS V3- CDE- UNIX95 branded- NIM- > 2GB filesystems-HACMP Clustering- POSIX 1003.1,1003.2, XPG4- Runtime Linking- Java 1.1.2

- 24-way SMP

- 64-bit HW support- 96 GB memory- UNIX98 branded- TCP/IP V6- IPsec- Web Sys. Mgr.- LDAP Dir. Server.- Workload Mgr- Java JDT/JIT

- Direct I/O- Alt. Disk Install- Exp/Bonus CDs

Distributed Client-Serve r

anagemen :- POWER4+ spt.- Dynamic LPAR- Dynamic CUoD- New 64bit kernel- 512GB mem- JFS2- 16 TB filesystems- UNIX03 branded- Concurrent I/O

- MultiPath I/O- Flex LDAP Client- XSSO PAM spt

e-Business Computing

Open Systems Workstations Uni-processor 4-8 way SMP 24-way SMP 32-way SMP

scalability

-POWER7Exploitation-Domain basedRBAC- AIX ProfileManager-WPARenhancements-AIX 5.2 in a WPAR

-PowerVMvirtualized storage-LVM SSD support-Terabyte segment

On Demand Business

64/256-way SMT

- POWER5 support

- 64-way SMP- SMT- MicroPartitions ™- Virt I/O Server- Partition Load Mgr- NFS Version 4- Adv. Accounting- Scaleable VG- JFS2 Shrink

- SUMA- SW RAS features- POSIX Realtime

Smarter Planet

-Workload Partitions

-Application Mobility-Continuous Avail.-Storage Keys-Dynamic tracing-Software FFDC-Recovery Rtns-Concurrent MX

-Trusted AIX-RBAC

-Encrypting JFS2-AIX Security Expert-Director Console

New Enterprise Data Center

1024-way SMT4



AIX EditionsAIX is available in three different editions:

– AIX Standard Edition

• Suitable for most UNIX workloads • Vertical scalability up to 64 cores (256 with AIX 7)

– AIX Enterprise Edition• AIX plus enterprise management • Includes AIX Standard Edition lus

AIX StandardEdition

AIX EnterpriseEdition


Systems Director Enterprise Edition and the Workload Partitions Manager for AIX • Vertical scalability up to 64 cores (256 with AIX 7)

– AIX Express Edition• Lower priced edition targeted a low end servers and

consolidation of smaller workloads on larger servers • Includes most of the functionality of AIX Standard Edition • Vertical scalability is limited to 4 cores and 8GB of memory per core in a single partition • Clients can use multiple AIX Express Edition partitions in a single larger server

Clients can mix multiple AIX editions in the same server

AIX ExpressEdition

Note: AIX V5.3 is only available in a Standard Edition



AIX Express can improve the economics of consolidation

Example: Consolidate eight 4-way POWER6 520s into a 24 way POWER7 770

With AIX Express

AIX License + SWMA

List price 24 cores x $1,000Total (list) $24,000


Old price with AIX Standard Edition

AIX License + SWMA

List price 24 cores x $1,950Total (list) $46,800

(U.S. prices shown)

,(U.S. prices shown)



Workload-Optimizing Systems

– Vertical scalability for massive workloads with up to 256 cores/1024 threads in a single AIX partition

Virtualization without limits

AIX 7 -- The Future of UNIX


– .

Resiliency without downtime – Built in clustering to simplify configuration and management of scale-out

workloads and high availability solutions

Management with Automation – Profile based configuration management eases the management

of pools of AIX systems

*All statements regarding IBM's future direction and intent are subjectto change or withdrawal without notice, and represent goals and objectives only.

Some features require the purchase of additional software components.



AIX Binary Compatibility - GuaranteedAIX has provided Binary Compatibilityacross multiple versions of AIX as amatter of policy

AIX 7 is binary compatible with AIX 6and AIX 5

– Current applications will continue to run – Runs on POWER4™ PPC-970™ POWER5™


POWER6, POWER7

Multiple upgrade paths via existingAIX tools

– Alt disk installation, NIM, etc.

Applications created on twenty yearsago can still run today

For full details on AIX Binary Compatibility see http://www-03.ibm.com/systems/power/software/aix/compatibility/guarantee/index.html



AIX Scalability Evolution

256256

10241024ThreadsThreads


AIX/6000UniprocessorUniprocessor

2424ThreadsThreads

44--88ThreadsThreads

ThreadsThreads

3232--128128ThreadsThreads



AIX Scaling on P7AIX Release / TL Max Processors / Threads

Supported

P6 Mode P7 ModeAIX 5.3 TL9, TL10, TL11,TL12

64 / 128 N/A


AIX 6.1 TL2, TL3 64 / 128 N/A

AIX 6.1 TL4, TL5 64 / 128 64 / 256

AIX 7.1 64 / 128 256 / 1024



IBM Power Systems

AIX 7 Hardware Enablement and SupportTerabyte Segment support

– Designed to improve performance for workloads that use large amounts of memory

AIX kernel memory pinning – AIX 7 memory pinned by default to enhance performance Hardware acceleration for Encrypting Filesystems, IPSec and TrustedExecution


– e uce processor wor oa or encryp on

Solid State Disk Support – SSD only VGs – filemon enhancements to identify SSD candidates – Filesystem enhancements for individual File monitoring

– Filesystem scalability enhancements.Shared Memory interface to Barrier Synchronous Register

– Reduce need for kernel extensions for BSR access topas enhancements for Active Memory Expansion



IBM Power Systems

AIX Workload Partitions (WPAR)WPARs can save administratorwork by reducing the number ofAIX instances to patch

WPARs have much lowermemory resourcerequirements: 68 MB vs 1GBfor an LPAR

Virtualized AIX operatingsystem environments within asingle AIX image

Each WPAR shares the singleAIX operating system

Applications and users inside aWPAR cannot affect resources

WorkloadPartition

ApplicationServer

WorkloadPartitionBilling

AIXglobal Instance

WorkloadPartition

ApplicationServer

WorkloadPartitionBilling

AIXglobal Instance

Top reasons to use WPARs What is it?


WPAR takes seconds to createand LPARs minutes

Application mobility muchsimpler to organize than LPM

Lots of WPARs on one AIX is

simpler to monitor and controlthan monitoring across manyLPARs.

Rapid cloning is easy and letsyou use "disposable images" -simple to create, experimentand throw away

outside the WPAR

Each WPAR can have aregulated share of processor,memory and other resources

Two types of WPAR

- System WPARs have separatesecurity and appear like acompletely separate OS

- Application WPARs aremanageability wrappers arounda single application

WorkloadPartition

WebServer

WorkloadPartition

TestWorkloadPartition

BI

NetworksDisk or NFS storage

WorkloadPartition

WebServer

WorkloadPartition

TestWorkloadPartition

BI

NetworksDisk or NFS storage



AIX 5.2 WPARs for AIX 7

Customer Value – Minimize effort to consolidate old environments on

new, more efficient hardware

– Allows clients who must stay on AIX V5.2 to move up to POWER7

– Enables advanced capabilities such as SMT4, Live

New offering that enables consolidation of existing AIX 5.2 environments inside of an AIX 7 Workload Partition on POWER7

AIX 5.2 VersionedEnvironment

AIX 7 Native Environment

/usr /opt

/usr /opt /usr

/opt

mks sb


pp ca on o y an ve ar on o y.

Features – Allows a legacy AIX 5.2 environment to be run inside

a WPAR on POWER7 systems with AIX 7

– Simply back up existing environment and restore inside of an AIX 7 WPAR

– This offering will also provide how-to and limited defect support for the AIX 5.2 operating system

– Managed via IBM Systems Director WorkloadPartitions Manager

*All statements regarding IBM's future direction and intent are subjectto change or withdrawal without notice, and represent goals and objectives only.

Some features require the purchase of additional software components.

AIX 5.2 WPARs for AIX 7 will be a separately charged product built on AIX 7 AIX 5.2 WPARs for AIX 7 will be a separately charged product built on AIX 7

POWER7

5.2 syscall compatibility layer AIX 7 native syscalls

A//var/tmp/home

B//var/tmp/home

D//var/tmp/home

C//var/tmp/home

AIX 7 Kernel

backup

fromAIX 5.2legacysystem



IBM Power Systems

WPAR EnhancementsExport of Fibre channel adapters to WPARs

– NPIV-like, but can work on any Fibre Channel adapter

– Adds support for Fibre Channel tape

Kernel Extensions for WPARs


– – Extensions can be only for one WPAR or for entire system

Support for VIOS disks in WPARs (also in AIX 6.1 TL6)

– Long requested feature



Cluster Aware AIX

Easily create clusters of AIX instances for scale-out computing or high availability

Designed to:

– Significantly simplify cluster configuration, construction, and maintenance

–

Designed to simplify construction and management of clusters of AIX systems for scale-out computing and high availability


– Capabilities such as common device naming help simplify administration

– Built in event management and monitoring

A foundation for future AIX capabilities and PowerHA SystemMirror V7



Cluster Aware AIX ExploitersPowerHA

System MirrorTSA Power LPARManagement

IBMStorage HPC

DB2 IBMDirector

VIOS

Monitoring

Group Services

Cluster Admin

Resource Mgr Services

Bundled Resource Managers

Messaging

Legacy RSCT

RSCT Consumers

Monitoring

Group Services

Cluster Admin

Resource Mgr Services

Bundled Resource Managers

Messaging

RSCT With Cluster Aware AIX


Legacy AIX

ClusterMonitoring Cluster CFGRepositoryClusterMessaging ClusterMonitoring Cluster CFGRepositoryClusterMessaging

Cluster Aware AIX

ClusterRepository

ClusterMessaging

ClusterMonitoring

ClusterEvents

CAA APIs and UIs

Redesigned Layers Integrated to CAA Capabilities

RSCT and Cluster Aware AIX together provide the foundation of strategic Power Systems SW

RSCT-CAA integration enables compatibility with a diverse set of dependent IBM products

RSCT integration with CAA extends simplified cluster management along with optimized and robustcluster monitoring, failure detection, and recovery to RSCT exploiters on Power / AIX



PowerHA SystemMirror 7.1 Standard Edition represents thenext generation of solutions for High Availability.

✓ Based on Cluster Aware AIX for kernel based HA technology✓ Systems Director based management for simple, centralized cluster administration✓ Smart Assists for out the box HA deployment of SAP and other popular applications

PowerHA SystemMirror (formerly HACMP)


✓ Advanced resource group policies for automated recovery sequencing✓ Available for AIX 7.1 and AIX 6.1 Technology Level 6

PowerHA SystemMirror 7.1 Enterprise Edition expandsstorage options for multi-site HA/DR

✓ IBM DS8000® Metro Mirror, SVC Metro Mirror & Global Mirror✓ IBM DS8700® Global Mirror✓ EMC SRDF✓ Hitachi Truecopy



AIX 7 Profile Manager (Formerly AIX Runtime Expert)

Simplified configuration using the AIX Profile Manager

Systems Director plug-in that is designed to simplify consistent AIX configuration across multiple systems

Traditional server configuration

OS Configuration and Tuning

Environment VariablesBoot LV Settings

CLI Utilities

XML Profiles

Env var XYZ=“Yes”AIX security profile


System NSystem A System N System C

SetExtract Compare

Configuration Files

Apply and maintain approachesScripts, ftp, rsh, ssh, documentation,3rd party tools, mksysb, etc.

System A System NSystem BSystem A System NSystem B

.tuneable N

Env var XYZ=“Yes”AIX security profiletuneable N



System Administrator System Administrator

Systems N



AIX Role Based Access Control (RBAC) with Domains

Can reduce the cost and complexity of securityadministration by allowing secure delegation ofadministrative tasks to non-privileged users

Enables a more secure IT infrastructure byreducing the need for so many privilegedadministrators

A capability of AIX that allowsprivileged administration tasks tobe delegated to non-privileged

usersAccess to system resources are

associated with roles that areassigned to non-privileged users

How it can help? What is it?

Users Users Roles

AIX Resources

AIX Resources

DBACompany A

DBACompany Z

Company AData


ss gn ng ro es to programs can re uce t eneed for security exposures such as the use ofsetuid for programs

Allows for new ways to delegate administrationduties between system administrators and non-administrative users

Many roles are predefinedwhich can reduce the effort ofimplementing RBAC

Roles can also be associatedwith programs

Domain access can further limitadministrators to only work withresources for a particularorganization (AIX 7)

PRINT

BACKUP Company A

BACKUP Company Z

Company Z Data

Domain supportProvides more granularityfor multi-tenant IT shops



AIX & Power Systems Security Certifications

AIX 5200-06 CAPP/EAL4+Application: 01/11/05Final report: 10/26/05Certificate: 12/14/05

AIX 5L 5200-05 andPitbull LSPP/EAL4+

Application :01/11/05Certificate issued: 05/16/06

AIX 5300-05LSPP/EAL4+

Pitbull product Supports P5, P4Certificate issued: 12/19/06

Pitbull MLS Ported toAIX 5300-03

Pitbull product available tocustomers Dec 31, 05

AIX 7100-00)CAPP/RBACPP/LSPP/EAL4+

Supports P7, P6, P5, P4

AIX 6100-00)CAPP/RBACPP/LSPP/EAL4+

MLS capabilities integratedinto standard AIX product

One certification for 3Protection Profiles

2006 2007 20102005


AIX 5300-04 CAPP/EAL4+Supports P5, P4Certificate issued: 12/19/06

Legend AIX V5.2AIX V5.3AIX 6AIX 7 (Planned)VIOSPOWER6

Certification History AIX 4.2 C2 : Apr 24, 1997AIX 4.3 C2 : May 6, 19987AIX 5.2 CAPP/EAL4+ : Nov 4, 2002POWER4 HW CAPP/EAL4+ : Apr 2003AIX 5.2 ML1 CAPP/EAL4+ : Sept 8, 2003

AIX 5.2 ML6 CAPP/EAL4+ : Dec 14, 2005AIX 5.2 ML5 and Pitbull LSPP : May 16, 2006AIX 5.3 TL5 and Pitbull LSPP : May 16, 2006AIX 5.2 TL4 & VIOS CAPP/EAL4+ : Dec 16, 2006POWER6: Dec, 2007AIX 6: May 26, 2008

VIOS EAL4+Included with AIX 53.00-04

CAPP/EAL4+

POWER6 HardwareEAL4+

Dynamic LPAR withMicroPartitioning

, ,



Why should clients move up to AIX 7 or AIX 6More performance on POWER7 – AIX 7 and AIX 6 can provide substantially more performance on POWER7 than AIX V5.3 – AIX 7 supports massive workloads with up to 256 cores / 1024 threads

Access to new features – Capabilities like WPARs, Role Based Access Control, AIX Profile Manager are designed to improve

security and administrative efficiency

AIX V5.3 is nearing End of Life – End of Marketing announced effective April 2011


AIX 7 will support running AIX 5.2 in a WPAR – Excellent way to consolidate old workloads running on less efficient hardware

It’s FREE! – Customers with software maintenance agreements (SWMA) can upgrade for no additional charge

within an Edition: AIX 5.3 to AIX 7 Standard edition,AIX 6 Express Edition to AIX 7 Express Edition, etc,



Power your planet.Smarter systems for a Smarter Planet.

BACK-UP CHARTS




Notes on performance estimatesrPerf for AIX

rPerf (Relative Performance) is an estimate of commercial processing performance relative to other IBM UNIX systems. It is derived from anIBM analytical model which uses characteristics from IBM internal workloads, TPC and SPEC benchmarks. The rPerf model is notintended to represent any specific public benchmark results and should not be reasonably used in that way. The model simulates some ofthe system operations such as CPU, cache and memory. However, the model does not simulate disk or network I/O operations.

rPerf estimates are calculated based on systems with the latest levels of AIX and other pertinent software at the time of systemannouncement. Actual performance will vary based on application and configuration specifics. The IBM eServer pSeries 640 is thebaseline reference system and has a value of 1.0. Although rPerf may be used to approximate relative IBM UNIX commercial processingperformance, actual system performance may vary and is dependent upon many factors including system hardware configuration andsoftware design and configuration. Note that the rPerf methodology used for the POWER6 systems is identical to that used for thePOWER5 systems. Variations in incremental system performance may be observed in commercial workloads due to changes in theunderlying system architecture.

All performance estimates are provided "AS IS" and no warranties or guarantees are expressed or implied by IBM. Buyers should consultother sources of information, including system benchmarks, and application sizing guides to evaluate the performance of a system they areconsidering buying. For additional information about rPerf, contact your local IBM office or IBM authorized reseller.


Revised April 2, 2007

========================================================================

CPW for IBM i

Commercial Processing Workload (CPW) is a relative measure of performance of processors running the IBM i operating system.Performance in customer environments may vary. The value is based on maximum configurations. More performance information isavailable in the Performance Capabilities Reference at: www.ibm.com/systems/i/solutions/perfmgmt/resource.html

power7 and aix7

Documents