SPEC Seal of Reviewal SPECjAppServer®2004 Result
Copyright © 2004 Standard Performance Evaluation Corporation
WebSphere 5.1 Application Server on eServer xSeries 335 Cluster
900.32 SPECjAppServer2004 JOPS@Standard
Submitter:
IBM Corporation
SPEC license # 11 Test date:
Jun-2004
Software Products
WebSphere 5.1 Application Server FP 5.1.0.4, Network Deployment
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
IBM DB2 Universal JDBC Driver (XA)
IBM DB2 V8.1 FP6
IBM HTTP Server V2.0.47
WebSphere Plugin for IBM HTTP Server V2.0.47
IBM Site Selector, Edge Component of WebSphere V5.1
WebSphere V5.1 JMS Server
Software Configurations
J2EE Application Servers
Emulator SW Config
Database SW Config
Driver SW Config Primary
Driver SW Config Satellites #1, and #2
IBM HTTP Server 2.0.47
IBM HTTP Server 2.0.47 WebSphere Plugin
IBM Site Selector (one of the Edge Components for WebSphere Application Server, V5.1)
WebSphere JMS Server (Included in WebSphere Application Server V5.1)
Hardware Systems
J2EE Application Server Hardware (7)
Database Server Hardware
Web Server Hardware
Load Driver(Primary) Hardware
Load Driver (2)
Load Driver(Emulator) Hardware
JMS Server Hardware

System Configuration Diagram

Benchmark
Modifications
Configuration
Bill of Materials
Other Info
General Notes
Full Disclosure Archive

SUT Configuration
J2EE Server Nodes: 8   DB Server Nodes: 1
J2EE Server CPUs: 16 cores, 16 chips   DB Server CPUs: 4 cores, 4 chips
J2EE Instances: 8   DB Instances: 1
Other SUT Components:
   (1) IBM eServer xSeries 335 running IBM HTTP Server 2.0.47 and IBM Site Selector
   (1) IBM eServer xSeries 335 running IBM HTTP Server 2.0.47
   (1) 3COM 4924 Switch

Benchmark Settings
Dealer Injection Rate: 540   Ramp Up Time: 600 seconds
# of Dealer Agents: 8   Ramp Down Time: 300 seconds
# of Manufacturing Agents: 3   Steady State Time: 3,600 seconds
DB Load Injection Rate: 600   Trigger Time: 500 seconds

Detailed Results
Dealer Transaction Mix Count Tx. Mix
Purchase 487,828 25.04%
Manage 487,864 25.05%
Browse 972,150 49.91%
Total # Dealer Transactions 1,947,842
Total # Manufacturing Transactions 1,293,318
Response Times Average Maximum 90th% Reqd
Purchase 0.28 7.34 0.70 2.00
Manage 0.48 11.34 1.10 2.00
Browse 0.29 8.37 0.70 2.00
Manufacturing 1.95 8.03 3.75 5.00
Reproducibility Run (SPECjAppServer2004 JOPS) 900.95

WebSphere 5.1 Application Server FP 5.1.0.4, Network Deployment
Vendor: IBM Corporation Availability: May-2004
CTS Version: 1.3 Date Passed CTS: Dec-2003
OS Name: Suse Linux Enterprise Server 8.0, Service Pack 3
EJB Protocol: RMI/IIOP

Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
Vendor: IBM Corporation Availability: Dec-2003
OS Name: Suse Linux Enterprise Server 8.0, Service Pack 3

IBM DB2 Universal JDBC Driver (XA)
Vendor: IBM Corporation Availability: Jul-2004
OS Name: Suse Linux Enterprise Server 8.0, Service Pack 3

IBM DB2 V8.1 FP6
Vendor: IBM Corporation Availability: Jul-2004
OS Name: Suse Linux Enterprise Server 8.0, Service Pack 3

IBM HTTP Server V2.0.47
Vendor: IBM Corporation Availability: May-2003
Description: Web Server

WebSphere Plugin for IBM HTTP Server V2.0.47
Vendor: IBM Corporation Availability: May-2003
Description: Web Server module to forward requests to application server

IBM Site Selector, Edge Component of WebSphere V5.1
Vendor: IBM Corporation Availability: May-2003
Description: Load balancer via mapping DNS names to IP addresses

WebSphere V5.1 JMS Server
Vendor: IBM Corporation Availability: May-2003
Description: Messaging Server

J2EE Application Servers
J2EE Product: WebSphere 5.1 Application Server FP 5.1.0.4, Network Deployment
JVM Product: Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
JDBC Product: IBM DB2 Universal JDBC Driver (XA)
Hardware: J2EE Application Server Hardware (7)
# of Instances: 7
Interfaces:
Web Interface for the Dealer Domain
Web Interface for the Supplier Domain
EJB Interface for the Dealer Domain
EJB Interface for the Manufacturing Domain
EJB Interface for the Supplier Domain
Notes / Tuning Information
Initial heap size = 1536 MB
Maximum heap size = 1536 MB
com.ibm.CORBA.FragmentSize=3000
Total Transaction Lifetime Timeout = 1000
ConnectionIOTimeout = 120
MaxConnectBacklog = 1024
MaxKeepAliveRequests = 10
Minimum Web Container threads = 50
Maximum Web Container threads = 50
EJB Cache Size = 30530
Minimum ORB threads = 15
Maximum ORB threads = 15
com.ibm.ws.pm.batch=true
com.ibm.ws.pm.deferredcreate=true
Monitoring Ping Interval = 600
Refer to files appservers/resources.xml, appservers/startup.txt,
and appservers/server.xml in the archive file.  They contain:
   datasource configuration,
   JVM command line parameters,
   and other J2EE configuration information

Emulator SW Config
J2EE Product: WebSphere 5.1 Application Server FP 5.1.0.4, Network Deployment
JVM Product: Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
Hardware: Load Driver(Emulator) Hardware
# of Instances: 1
Notes / Tuning Information
Initial heap size = 1024 MB
Maximum heap size = 1024 MB
ConnectionIOTimeout = 120
MaxConnectBacklog = 1024

Database SW Config
DB Product: IBM DB2 V8.1 FP6
Hardware: Database Server Hardware
# of Instances: 1
Notes / Tuning Information
Tuning performed by db2tune8.sh script in the archive/Schema directory.

Driver SW Config Primary
JVM Product: Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
Hardware: Load Driver(Primary) Hardware
# of Instances: 1
Notes / Tuning Information
JVM_OPTIONS=-Xss128k -Xms1070m -Xmx1070m
-Dcom.ibm.CORBA.FragmentSize=3000

Driver SW Config Satellites #1, and #2
JVM Product: Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1)
Hardware: Load Driver (2)
# of Instances: 2
Notes / Tuning Information
JVM_OPTIONS=-Xss128k -Xms1200m -Xmx1200m
-Dcom.ibm.CORBA.FragmentSize=3000

IBM HTTP Server 2.0.47
Other Product: IBM HTTP Server V2.0.47
Hardware: Web Server Hardware
# of Instances: 2
Notes / Tuning Information
In the file conf/httpd.conf
   KeepAliveTimeout 1000
   MaxKeepAliveRequests 0
   ServerLimit 18
   StartServers 18
   ThreadLimit 275
   MaxClients 4950
   MaxSpareThreads 3400
   ThreadsPerChild 275
   Comment out access.log

IBM HTTP Server 2.0.47 WebSphere Plugin
Other Product: WebSphere Plugin for IBM HTTP Server V2.0.47
Hardware: Web Server Hardware
# of Instances: 2
Notes / Tuning Information
In the file .../config/cells/plugin-cfg.xml
   Changed "Round Robin" to "Random" for SPECJ04 Cluster

IBM Site Selector (one of the Edge Components for WebSphere Application Server, V5.1)
Other Product: IBM Site Selector, Edge Component of WebSphere V5.1
Hardware: Web Server Hardware
# of Instances: 1
Notes / Tuning Information
Defaults used.

WebSphere JMS Server (Included in WebSphere Application Server V5.1)
Other Product: WebSphere V5.1 JMS Server
Hardware: JMS Server Hardware
# of Instances: 1
Notes / Tuning Information
Deleted the MQ manager and made these changes:
  In createmq.properties:
      LogFileSize = 16384
      LogPrimaryFiles = 60
      LogSecondaryFiles = 3
  In mqs.ini  (LogDefaults section)
      LogPrimaryFiles = 60
      LogSecondaryFiles = 3
      LogFilePages = 16384
      LogBufferPages = 512
Recreated the MQ Manager and made these changes:
   In qm.ini (Channels section)
       MQIBindType=FASTPATH
   In qm.ini (TuningParameters section)
       DefaultQBufferSize=100000000
       DefaultPQBufferSize=100000000

J2EE Application Server Hardware (7) (SUT hardware)
Hardware Vendor: IBM Corporation OS Vendor: SuSE Inc.
Model Name: IBM eServer xSeries 335 OS Name: SuSE Linux Enterprise Server 8 Service Pack 3
Processor: Intel Xeon DP Filesystem: ReiserFS
MHz: 3200 Disks: 2x36.4GB 15K RPM Ultra 320 SCSI (using x335 integrated mirroring)
# of CPUs: 2 cores, 2 chips, 1 core/chip (2 HW threads/chip) Network Interface: 1000BASE-TX Gigabit Integrated Ethernet
Memory (MB): 4096 Other Hardware:
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 7
L2 Cache: 512KB per chip H/W Available: May-2004
Other Cache: 2MB L3 cache per chip OS Available: May-2004
Notes / Tuning Information
These entries added to /etc/init.d/sysctl.conf
  net.core.netdev_max_backlog = 600
  net.core.somaxconn = 1024
  net.ipv4.tcp_synack_retries = 20
  net.ipv4.tcp_fin_timeout = 30
  fs.file-max=65535
  kernel.shmmax=1073741824
  net.ipv4.tcp_sack=0
  net.ipv4.tcp_timestamps=0
  vm.bdflush=100 1200 128 512 15 5000 100 0 0
  kernel.sched_yield_scale=1

Database Server Hardware (SUT hardware)
Hardware Vendor: IBM Corporation OS Vendor: SuSE Inc.
Model Name: IBM eServer xSeries 365 OS Name: SuSE Linux Enterprise Server 8, Service Pack 3
Processor: Intel Xeon Filesystem: ReiserFS
MHz: 3000 Disks: 2x36.4GB 15K RPM SCSI
# of CPUs: 4 cores, 4 chips, 1 core/chip (2 HW threads/chip) Network Interface: 1000BASE-TX
Memory (MB): 8192 Other Hardware: Two ServeRAID 6M controllers each connected to separate EXP400 Storage Units each with 14x36.4GB 15K Ultra320 SCSI disks. See diagrams: db_tables.JPG and db_logs.JPG in the archive.
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 1
L2 Cache: 512KB per chip H/W Available: Apr-2004
Other Cache: 4MB L3 cache per chip OS Available: Apr-2004
Notes / Tuning Information
These entries were added to /etc/init.d/sysctl.conf
  net.core.netdev_max_backlog = 600
  net.core.somaxconn = 1024
  net.ipv4.tcp_synack_retries = 20
  net.ipv4.tcp_fin_timeout = 30
  fs.file-max=65535
  kernel.shmmax=1073741824
  net.ipv4.tcp_sack=0
  net.ipv4.tcp_timestamps=0
  vm.bdflush=100 1200 128 512 15 5000 100 0 0
  kernel.sched_yield_scale=1
This change was made in .../java/jre/lib/security/java.security
  networkaddress.cache.ttl=1
This entry was added to /root/.profile
  ulimit -n 10000

Web Server Hardware (SUT hardware)
Hardware Vendor: IBM OS Vendor: Red Hat, Inc.
Model Name: IBM eServer xSeries 335 OS Name: Red Hat Enterprise Linux AS 3.0 SP1
Processor: Intel Xeon DP Filesystem: ReiserFS
MHz: 3200 Disks: 2x36.4GB 15K RPM Ultra 320 SCSI (using x335 integrated mirroring)
# of CPUs: 2 cores, 2 chips, 1 core/chip (2 HW threads/chip) Network Interface: (2)1000BASE-TX Gigabit Integrated Ethernet
Memory (MB): 4096 Other Hardware:
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 2
L2 Cache: 512KB per chip H/W Available: Apr-2004
Other Cache: 2MB L3 cache per chip OS Available: Apr-2004
Notes / Tuning Information
These entries were added to /etc/sysctl.conf
  net.core.netdev_max_backlog = 7000
  net.ipv4.tcp_syn_retries = 20
  net.ipv4.tcp_synack_retries = 20
  net.ipv4.tcp_fin_timeout = 30
  vm.max_map_count = 131072
This entry was added to /root/.bash_profile
  ulimit -n 8192

Load Driver(Primary) Hardware (non-SUT hardware)
Hardware Vendor: IBM Corporation OS Vendor: SuSE Inc.
Model Name: IBM eServer xSeries 365 OS Name: SuSE Linux Enterprise Server 8, Service Pack 3
Processor: Intel Xeon Filesystem: ReiserFS
MHz: 3000 Disks: 2x36.4GB 15K RPM SCSI
# of CPUs: 4 cores, 4 chips, 1 core/chip (2 HW threads/chip) Network Interface: (3)1000BASE-TX
Memory (MB): 8192 Other Hardware:
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 1
L2 Cache: 512KB per chip H/W Available: Apr-2004
Other Cache: 4MB L3 cache per chip OS Available: Apr-2004
Notes / Tuning Information
These entries were added to /etc/init.d/sysctl.conf
  net.core.netdev_max_backlog = 600
  net.core.somaxconn = 1024
  net.ipv4.tcp_synack_retries = 20
  net.ipv4.tcp_fin_timeout = 30
  fs.file-max=65535
  kernel.shmmax=1073741824
  net.ipv4.tcp_sack=0
  net.ipv4.tcp_timestamps=0
  vm.bdflush=100 1200 128 512 15 5000 100 0 0
  kernel.sched_yield_scale=1
This change was made in .../java/jre/lib/security/java.security
  networkaddress.cache.ttl=1
This entry was added to /root/.profile
  ulimit -n 10000

Load Driver (2) (SUT hardware)
Hardware Vendor: IBM Corporation OS Vendor: SuSE Inc.
Model Name: IBM eServer xSeries 335 OS Name: SuSE Linux Enterprise Server 8 Service Pack 3
Processor: Intel Xeon DP Filesystem: ReiserFS
MHz: 3200 Disks: 2x36.4GB 15K RPM Ultra 320 SCSI (using x335 integrated mirroring)
# of CPUs: 2 cores, 2 chips, 1 core/chip (2 HW threads/chip) Network Interface: (3)1000BASE-TX Gigabit
Memory (MB): 4096 Other Hardware:
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 2
L2 Cache: 512KB per chip H/W Available: Apr-2004
Other Cache: 2MB L3 cache per chip OS Available: Apr-2004
Notes / Tuning Information
These entries added to /etc/init.d/sysctl.conf
  fs.file-max=65535
  kernel.shmmax=1073741824
  net.ipv4.tcp_sack=0
  net.ipv4.tcp_timestamps=0
  vm.bdflush=100 1200 128 512 15 5000 100 0 0
  kernel.sched_yield_scale=1
This entry was added to /root/.profile
  ulimit -n 10000

Load Driver(Emulator) Hardware (non-SUT hardware)
Hardware Vendor: IBM Corporation OS Vendor: SuSE Inc.
Model Name: IBM eServer xSeries 440 OS Name: SuSE Linux Enterprise Server 8, Service Pack 3
Processor: Intel Xeon Filesystem: ReiserFS
MHz: 2000 Disks: 2x36.4GB 10K RPM SCSI
# of CPUs: 4 cores, 4 chips, 1 core/chip (2 HW threads/chip) Network Interface: (2)1000BASE-TX
Memory (MB): 4096 Other Hardware:
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 1
L2 Cache: 512KB per chip H/W Available: Apr-2004
Other Cache: 2MB L3 cache per chip OS Available: Apr-2004
Notes / Tuning Information
These entries were added to /etc/init.d/sysctl.conf
  net.core.netdev_max_backlog = 600
  net.core.somaxconn = 1024
  net.ipv4.tcp_synack_retries = 20
  net.ipv4.tcp_fin_timeout = 30
  fs.file-max=65535
  kernel.shmmax=1073741824
  net.ipv4.tcp_sack=0
  net.ipv4.tcp_timestamps=0
  vm.bdflush=100 1200 128 512 15 5000 100 0 0
  kernel.sched_yield_scale=1
This entry was added to /root/.profile
  ulimit -n 8192

JMS Server Hardware (SUT hardware)
Hardware Vendor: IBM Corporation OS Vendor: SuSE Inc.
Model Name: IBM eServer xSeries 335 OS Name: SuSE Linux Enterprise Server 8 Service Pack 3
Processor: Intel Xeon DP Filesystem: ReiserFS
MHz: 3200 Disks: 2x36.4GB 15K RPM Ultra 320 SCSI (using x335 integrated mirroring)
# of CPUs: 2 cores, 2 chips, 1 core/chip (2 HW threads/chip) Network Interface: 1000BASE-TX Gigabit Integrated Ethernet
Memory (MB): 4096 Other Hardware:
L1 Cache: 12Kuops(I)+8KB(D) per chip # of Systems: 1
L2 Cache: 512KB per chip H/W Available: Apr-2004
Other Cache: 2MB L3 cache per chip OS Available: Apr-2004
Notes / Tuning Information
These entries added to /etc/init.d/sysctl.conf
  fs.file-max=65535
  kernel.shmmax=1073741824
  net.ipv4.tcp_sack=0
  net.ipv4.tcp_timestamps=0
  vm.bdflush=100 1200 128 512 15 5000 100 0 0
  kernel.sched_yield_scale=1

Benchmark Modifications
Schema Modifications:
  No changes were made to the benchmark schema.
Load Program Modifications:
  No changes were made to the load program.

Benchmark Configuration Information
Isolation Requirement Info:
  The following beans: PartEnt, ComponentEnt, AssemblyEnt, BomEnt and
  LargeOrderEnt in the Manufacturing Domain, ItemEnt in the Orders Domain,
  and SupplierCompEnt and SupplierEnt in the Supplier Domain were
  accessed using READ_COMMITTED which is Cursor Stability (CS) for DB2.
  The remaining beans were accessed using REPEATABLE_READ which
  translates to DB2 isolation level of Read Stability (RS).
  
  The ItemEnt bean was cached for 20 minute intervals using the WebSphere
  Lifetime in Cache Mechanism.  Only the data inside the bean was cached.
Durability Requirement Info:
  To ensure database durability, RAID 50 (composed of two RAID 5E arrays)
  was used for the database logs maintained on the
  EXP400 Storage Expansion Unit.
  
  Each application server and the JMS server has a pair of mirrored disks
  (using the x335 integrated mirroring).  This provides durability for
  transaction logs, message queues, and message logs.
Storage Requirement Info:
  Over the course of a 75 minute run at an injection rate of 540, database
  storage increased 476 MB.  Given a linear scale, a 24 hour run at the same
  injection rate would increase storage by 9139.20 MB.  The EXP 400 Disk enclosure
  contained fourteen 36.4GB drives.  The ServeRAID 6M adapter utilized these
  drives as a RAID 50 array consisting of two RAID 5E arrays of 7 drives each.
  This yielded a total disk storage of 419879 MB for the database.
Argument Passing Semantics:
  WebSphere Application Server V5.1 uses pass-by-value semantics by default

Bill of Materials

            IBM x335 WebSphere 5.1 Cluster with p650 DB2 v8.1 FP6 Database Server 
                  			
Supplier      x335 WebSphere Application Server and IBM HTTP Server Hardware (for 10 systems)	
     Unit Qty     Description                                 Part Number 2004
IBM	10	IBM xSeries 335                                     8676-J1X
IBM		3200 MHZ 533 MHZ 2MB L3 CACHE INTEL XEON PROCESSOR      includen in 8676-J1X
IBM		2 X 512MB PC2100 DDR SDRAM (CHIPKILL);24X CD-ROM        includen in 8676-J1X
IBM	10	IBM XSERIES 335 - 3YR WARRANTY SERVICE UPGRADE (24X7X4)	21P2073
IBM	10	REMOVE STANDARD MEMORY                              09N8043
IBM	10	xSERIES 3.2 GHz/533MHz-2MB L3 CACHE UPGRADE WITH XEON PROCESSOR	13N0662
IBM	40	IBM 1 GB PC2100 CL2.5 ECC DDR SDRAM DIMM            33L5039
IBM	10	INTEGRATED MIRRORING                                01R1356
IBM	20	IBM 36.4 GB 15K RPM ULTRA320 SCSI HOT-SWAP HDD      32P0734
						
			
            IBM x365 Database Hardware (for 1 system)	
     Unit Qty       Description                               Part Number 2004
IBM     1       IBM xSeries 365                                     8862-6RX
IBM     2       3.0GHz 4MB L3 Intel Xeon Processor MP   included in 8862-6RX
IBM             4 X 512MB PC2100 DDR SDRAM;24X CD-ROM   includen in 8862-6RX
IBM     1       REMOVE STANDARD MEMORY                              09N8043
IBM     1       Warranty service upgrade; 3 yr onsite repair 24x7x4 96P2253
IBM     2       3.0GHz 4MB L3 Cache Upgrade With Xeon Processor MP  13N0710
IBM     8       1GB PC2100 CL2.5 ECC DDR SDRAM RDIMM                73P2031
IBM     2       IBM 36.4 GB 15K RPM ULTRA320 SCSI HOT-SWAP HDD      32P0734
IBM     1       ServeRAID-6M Ultra320 SCSI Controller (256MB Cache) 02R0988
IBM     1       ServeRAID-6M Ultra320 SCSI Controller               32P0033
IBM     2       Intel PRO/1000 XT Server Adapter                    31P9601

						
              Storage Hardware (for x365)	
     Unit Qty    Description                                  Part Number 2004
IBM     2       EXP400 External SCSI Storage Enclosure              17331RU
IBM     2       VHDCI SCSI 2m cable -         one cable included in 17331RU 
IBM     2       IBM EXP400 - 3yr Warranty Service Uprade (24x7x4)   41L2768
IBM    28       IBM 36.4 GB 15K RPM ULTRA320 SCSI HOT-SWAP HDD      32P0734
			
			
		Miscellaneous Hardware
     Unit Qty    Description                                  Part Number 2004
IBM     1       NetBAY42 ER Enterprise Rack                         930842S
IBM     1       NetBay - 3yr Warranty Service Upgrade (24x7x4)      41L2762
3COM    1       3COM SUPERSTACK 3 SWITCH 4924                       3C17701-US
3COM    3       3COM 1YR 24X7X4 EXPRESS SUPPORT -  CAT10            3CS-EX74-10E
IBM     1       E54 15 INCH BLACK CRT MONITOR (13.8INCH VIEWABLE)   633147N
IBM     1       E54 - 3YR WARRANTY SERVICE UPGRADE (24X7X4)         30L9183
IBM     1       IBM PREFERRED PRO FULL-SIZE KBD - 104 KEYS - PS/2   31P7454
IBM     1       IBM SLEEK 2-BUTTON MOUSE - STEALTH BLACK (PS/2)     28L3673
									
			
                Passport Advantage Software	
     Unit Qty    Description                                                       Part Number 2004
IBM      4	DB2 UDB WORKGROUP SERVER UNLIMITED EDITION PROCESSOR LIC+SW MAINT 12 MO     D51NDLL
IBM      8	DB2 UDB WORKGROUP SERVER UNLIMITED EDITION PROCESSOR SW MAINT RNWL 1 ANNIV  E00IHLL
IBM     16	WAS NETWORK DEPLOYMENT 5.1 MULTIPLT PROG PK 1 PROC NLV MEDIA PK NLV         BA0BPML
IBM     32	WEBSPHERE APPLICATION SRVR NETWORK DEPLOYMENT PROC ANNUAL SW MAINT RNWL     E1ALVLL
IBM      1	EDGE SERVER - LOAD BALANCING, CACHING,CENTRALIZED SECURITY included in      BA0BPML
IBM      1	EDGE SERVER - SUPPORT                   included in E1ALVLL
IBM      2	IBM HTTP SERVER 2.0.47                  included in BA0BPML 
IBM      2	IBM HTTP SERVER 2.0.47 SUPPORT          included in E1ALVLL
         		
         		
                 Operating System Software	
      Unit Qty   Description                                                       Part Number 2004
SuSE     1      SUSE LINUX ENTERPRISE SERVER 8 FOR X86 INSTALLATION KIT                SUSE QUOTE
SuSE     9      PREMIUM SUPPORT FOR SLES8 X86 FOR 3 YEARS                              SUSE QUOTE
SuSE     9      MAINTENANCE PROGRAM FOR SLES8 X86 FOR 3 YEARS                          SUSE QUOTE
Red Hat  1      REDHAT ENTERPRISE LINUX  V.3.2.26 FOR X86 INSTALLATION KIT             REDHAT QUOTE
Red Hat  1      ENTERPRISE TECHNICAL ACCOUNT MANAGEMENT                                REDHAT QUOTE
Red Hat  6      RHEL AS Premium (x86) Subscription    (https://www.redhat.com/apps/commerce/rhel/as/)


Other Benchmark Information
  The switch ports and all network adapters are 1Gb/sec.
  
  Three types of load balancing were utilized:
    WebSphere's workload management performed load balancing for RMI/IIOP requests.
    Site Selector balanced HTTP connections across the two IHS web servers.
    The IHS WebSphere plugin balanced load across the WebSphere nodes and
    also maintained session affinity to a particular node.
  
  This submission used the xerces implementation (version - XML4J 4.2.2) provided
  with WebSphere Application Server V5.1 in the IBM 1.4.1 JDK.
  

General Notes
The only errors in the driver log files were those that are normally generated by this benchmark.

The IBM DB2 Universal JDBC Driver (XA) is a type 2 driver.

DB2 uses "Soft" checkpoint to ensure that no updates remain unflushed for
longer than the allowed time.

When DB2 UDB Server changes a database table with an update, insert, or delete
operation, the change is initially made in memory, not on disk. When there is
not enough space in the memory buffer to read in or write additional data pages,
DB2 UDB Server will make space by flushing some modified pages to disk.
Modified pages are also written to disk as part of the "Soft" checkpoint to
ensure that no updates remain unflushed for longer than the allowed time.
Before a change is made to the database, it is first recorded in the
transaction log. This ensures that the database can be recovered completely
in the event of a failure. Using the transaction log, transactions that
started but did not complete prior to a failure can be undone, and
transactions recorded as complete in the transaction log but not yet written
to disk can be redone.

DB2 UDB uses a write-ahead-logging protocol to guarantee recovery. This
protocol uses "Soft" checkpoint to write least-recently-used database pages
to disk independent of transaction commit. However, enough log information to
redo/undo the change to a database pages is committed to disk before the
database page itself is written. This protocol therefore renders checkpoint
unnecessary for DB2 UDB. For a more detailed description of the general
principles of the write-ahead-logging protocol, see the IBM research paper,
ARIES: A Transaction Recovery Method Supporting Fine Granularity Locking and
Partial Rollbacks Using Write-Ahead Logging," by C. Mohan, Database Technology
Institute, IBM Almaden Research Center. (http:// portal.acm.org/citation.cfm
?id=128770&coll=portal&dl=ACM&CFID=10343790&CFTOKEN=42047146)

XA 2-phase transactions were used to coordinate the interaction between the database
server and JMS server.


For questions about this result, please contact the submitter: IBM Corporation
For other inquiries, please contact webmaster@spec.org

Copyright © 2004 Standard Performance Evaluation Corporation

First published at SPEC.org on 07-Jul-2004