SPECjAppServer2004 Result: BEA WebLogic Server 9.2 on Sun Fire E2900 using Solaris Containers

SPECjAppServer®2004 Result
Copyright © 2004 Standard Performance Evaluation Corporation

BEA WebLogic Server 9.2 on Sun Fire E2900 using Solaris Containers

1,781.37 SPECjAppServer2004 JOPS@Standard

Submitter:
Sun Microsystems Inc.

SPEC license # 6

Test date:
Mar-2007

Software Products
BEA WebLogic Server 9.2, Advantage Edition
Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 11 32-bit
Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 11 64-bit
Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit
IBM DB2 Universal JDBC Drivers
IBM DB2 Universal Database v8.2.6 (64-bit)

Software Configurations
J2EE Application Servers
Emulator SW Config
Database SW Config
Driver SW Config Primary
Driver SW Config Satellites #1-#3
Driver SW Config Satellites #7-#10
Driver SW Config Satellites #13-#17
Driver SW Config Satellite #6

Hardware Systems
J2EE AppServer HW
Database Server HW
Emulator & Driver HW Satellite #6
Load Driver HW Primary
Load Driver HW Satellites #1-#3
Load Driver HW Satellite #7-#10
Load Driver HW Satellites #13-#17

System Configuration Diagram

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

SUT Configuration

J2EE Server Nodes:	1	DB Server Nodes:	1
J2EE Server CPUs:	24 cores, 12 chips	DB Server CPUs:	8 cores, 1 chip
J2EE Instances:	6	DB Instances:	1

Other SUT Components:

Benchmark Settings

Dealer Injection Rate:	1,070	Ramp Up Time:	900 seconds
# of Dealer Agents:	70	Ramp Down Time:	600 seconds
# of Manufacturing Agents:	30	Steady State Time:	3,600 seconds
DB Load Injection Rate:	2,000	Trigger Time:	849 seconds

Detailed Results

Dealer Transaction Mix	Count	Tx. Mix
Purchase	964,563	24.99%
Manage	964,726	24.99%
Browse	1,930,735	50.02%
Total # Dealer Transactions	3,860,024

Total # Manufacturing Transactions	2,552,922

Response Times	Average	Maximum	90th%	Reqd
Purchase	0.31	19.63	0.60	2.00
Manage	0.35	19.33	0.80	2.00
Browse	0.34	20.96	0.60	2.00
Manufacturing	1.96	17.67	3.00	5.00

Reproducibility Run (SPECjAppServer2004 JOPS)	1,783.26

BEA WebLogic Server 9.2, Advantage Edition

Vendor:	BEA Systems, Inc.	Availability:	Oct-2006
CTS Version:	1.4	Date Passed CTS:	Jun-2005
OS Name:	Solaris 10 11/06 (64-bit)
EJB Protocol:	RMI/T3

Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 11 32-bit

Vendor:	Sun Microsystems, Inc.	Availability:	Dec-2006
OS Name:	Solaris 10 11/06 (64-bit)

Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 11 64-bit

Vendor:	Sun Microsystems, Inc.	Availability:	Dec-2006
OS Name:	Solaris 10 (64-bit)

Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit

Vendor:	Sun Microsystems, Inc.	Availability:	Nov-2005
OS Name:	Solaris 10 (64-bit)

IBM DB2 Universal JDBC Drivers

Vendor:	IBM Corporation	Availability:	Aug-2006
OS Name:	Solaris 10 6/06 (64-bit)

IBM DB2 Universal Database v8.2.6 (64-bit)

Vendor:	IBM Corporation	Availability:	Aug-2006
OS Name:	Solaris 10 6/06 (64-bit)

J2EE Application Servers

J2EE Product:	BEA WebLogic Server 9.2, Advantage Edition
JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 11 32-bit
JDBC Product:	IBM DB2 Universal JDBC Drivers
Hardware:	J2EE AppServer HW
# of Instances:	6
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

JVM Options: -server -Xms2560m -Xmx2560m -Xmn1g -Xss128k -XX:+AggressiveHeap
-XX:+UseParallelGC -XX:ParallelGCThreads=8 -XX:PermSize=128m
-XX:MaxTenuringThreshold=3 -XX:LargePageSizeInBytes=256m
-XX:SurvivorRatio=20 -XX:+UseParallelOldGC
-Dcom.sun.xml.namespace.QName.useCompatibleSerialVersionUID=1.0
-Dweblogic.SocketReaders=2
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
Java process started in FX class using /usr/bin/priocntl -e -c FX

Emulator SW Config

J2EE Product:	BEA WebLogic Server 9.2, Advantage Edition
JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 11 64-bit
Hardware:	Emulator & Driver HW Satellite #6
# of Instances:	1

Notes / Tuning Information

JVM Options: -d64 -server -Xms20g -Xmx20g -Xmn800m -Xss256k
-XX:+AggressiveHeap -XX:+UseParallelGC -XX:ParallelGCThreads=16
-XX:LargePageSizeInBytes=4m -XX:MaxTenuringThreshold=3 -XX:SurvivorRatio=20
-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps
-XX:-TraceClassUnloading
-Dcom.sun.xml.namespace.QName.useCompatibleSerialVersionUID=1.0
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
-Dweblogic.SocketReaders=1
Java process started in FX class using /usr/bin/priocntl -e -c FX

Database SW Config

DB Product:	IBM DB2 Universal Database v8.2.6 (64-bit)
Hardware:	Database Server HW
# of Instances:	1

Notes / Tuning Information
Tuning performed by db2tune.sh script in the archive/Schema directory. DB2 processes run in FX class using /usr/bin/priocntl -s -c FX -i pid

Driver SW Config Primary

JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit
Hardware:	Load Driver HW Primary
# of Instances:	1

Notes / Tuning Information

JVM Options: -Xms2g -Xmx2g -Xmn600m -Xss128k
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
-Dorg.omg.CORBA.ORBInitialHost=$JAS_MULTI_HOST
-Djava.naming.factory.initial=$JNDI_CLASS
-Djava.naming.provider.url=$NAMING_PROVIDER

Driver SW Config Satellites #1-#3

JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit
Hardware:	Load Driver HW Satellites #1-#3
# of Instances:	3

Notes / Tuning Information

JVM Options: -Xms2g -Xmx2g -Xmn600m -Xss128k
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
-Dorg.omg.CORBA.ORBInitialHost=$JAS_MULTI_HOST
-Djava.naming.factory.initial=$JNDI_CLASS
-Djava.naming.provider.url=$NAMING_PROVIDER

Driver SW Config Satellites #7-#10

JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit
Hardware:	Load Driver HW Satellites #13-#17
# of Instances:	4

Notes / Tuning Information

JVM Options: -Xms2g -Xmx2g -Xmn600m -Xss128k
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
-Dorg.omg.CORBA.ORBInitialHost=$JAS_MULTI_HOST
-Djava.naming.factory.initial=$JNDI_CLASS
-Djava.naming.provider.url=$NAMING_PROVIDER

Driver SW Config Satellites #13-#17

JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit
Hardware:	Load Driver HW Satellite #7-#10
# of Instances:	5

Notes / Tuning Information

JVM Options: -Xms2g -Xmx2g -Xmn600m -Xss128k
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
-Dorg.omg.CORBA.ORBInitialHost=$JAS_MULTI_HOST
-Djava.naming.factory.initial=$JNDI_CLASS
-Djava.naming.provider.url=$NAMING_PROVIDER

Driver SW Config Satellite #6

JVM Product:	Java (TM) 2 Platform Standard Edition Development Kit 5.0 Update 6 32-bit
Hardware:	Emulator & Driver HW Satellite #6
# of Instances:	1

Notes / Tuning Information

JVM Options: -Xms2g -Xmx2g -Xmn600m -Xss128k
-Dsun.net.inetaddr.ttl=0 -Dnetworkaddress.cache.ttl=0
-Dorg.omg.CORBA.ORBInitialHost=$JAS_MULTI_HOST
-Djava.naming.factory.initial=$JNDI_CLASS
-Djava.naming.provider.url=$NAMING_PROVIDER

J2EE AppServer HW (SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire E2900	OS Name:	Solaris 10 11/06 (64-bit)
Processor:	UltraSPARC IV+	Filesystem:	UFS
MHz:	1950	Disks:	2x73Gb 10K RPM SCSI
# of CPUs:	24 cores, 12 chips, 2 cores/chip	Network Interface:	(6) 1000BaseT Ethernet
Memory (MB):	98304	Other Hardware:	1x Sun STK3510 Array (12x 146GB 10K RPM FC Disk Array - Shared with Database Server HW)
L1 Cache:	64KB(I)+64KB(D) per core on chip	# of Systems:	1
L2 Cache:	2MB(I+D) per core on chip	H/W Available:	Apr-2007
Other Cache:	32MB(I+D) per chip	OS Available:	Nov-2006

Notes / Tuning Information

System tuning:
set lgrp_mem_pset_aware = 1
set lgrp_mem_default_policy = 3
set ce:ce_bcopy_thresh=256
set ce:ce_dvma_thresh=256
set ce:ce_taskq_disable=1
set ce:ce_ring_size=256
set ce:ce_comp_ring_size=1024
set ce:ce_tx_ring_size=4096
Network Tuning:
ndd -set /dev/tcp tcp_conn_req_max_q0 16384
ndd -set /dev/tcp tcp_conn_req_max_q 16384
ndd -set /dev/tcp tcp_xmit_hiwat 131072
ndd -set /dev/tcp tcp_recv_hiwat 131072
ndd -set /dev/tcp tcp_naglim_def 1
CE network driver tuning:
ndd -set /dev/ce rx_intr_time 32
ndd -set /dev/ce rx_intr_pkts 16
Interrupts disabled on odd numbered cores using the /usr/sbin/psradm command.
The six application server instances were hosted in separate Solaris Containers.
Five application server instances were each bound to a separate 4-core processor
set using the /usr/sbin/psrset command. The Sixth application server instance
was run in the default processor set.

Database Server HW (SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire T2000	OS Name:	Solaris 10 6/06 (64-bit)
Processor:	Sun UltraSPARC T1	Filesystem:	UFS
MHz:	1200	Disks:	2x73Gb 10K RPM Ultra320 SCSI
# of CPUs:	8 cores, 1 chip, 8 cores/chip	Network Interface:	(4) Sun 1000BaseT Ethernet
Memory (MB):	32768	Other Hardware:	1x Sun STK3510 Array (12x 73GB 10K RPM FC Disk Array) & 1x Sun STK3510 Array (12x 146GB 10K RPM FC Disk Array)
L1 Cache:	16KB(I)+8KB(D) per core	# of Systems:	1
L2 Cache:	3MB per chip	H/W Available:	Nov-2005
Other Cache:		OS Available:	Jun-2006

Notes / Tuning Information

System Tuning in /etc/system:
set ip:ip_squeue_fanout= 1
set ip:ip_squeue_bind = 0
UFS mount options for database files: noatime,forcedirectio
Shared memory settings in /etc/project:
user.db2inst1:100:DB2 instance:::
project.max-msg-ids=(privileged,12288,deny);
project.max-sem-ids=(privileged,12288,deny);
project.max-shm-ids=(privileged,12288,deny);
project.max-shm-memory=(privileged,30813740236,deny)
Network Tuning:
ndd -set /dev/tcp tcp_conn_req_max_q 16384
ndd -set /dev/tcp tcp_conn_req_max_q0 16384
ndd -set /dev/tcp tcp_xmit_hiwat 131072
ndd -set /dev/tcp tcp_recv_hiwat 131072
ndd -set /dev/tcp tcp_naglim_def 1
DB2 processes bound across all processor cores using /usr/sbin/pbind.

Emulator & Driver HW Satellite #6 (non-SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire V890	OS Name:	Solaris 10 6/06(64-bit)
Processor:	UltraSPARC IV+	Filesystem:	UFS
MHz:	1800	Disks:	12 x 36Gb FC
# of CPUs:	16 cores, 8 chips, 2 cores/chip	Network Interface:	(2) Onboard 1000BaseT Ethernet
Memory (MB):	65536	Other Hardware:
L1 Cache:	64KB(I)+64KB(D) per core on chip	# of Systems:	1
L2 Cache:	2MB(I+D) per core on chip	H/W Available:	Aug-2006
Other Cache:	32MB(I+D) per chip	OS Available:	Jun-2006

Notes / Tuning Information

System Tuning in /etc/system:
set ce:ce_bcopy_thresh=256
set ce:ce_dvma_thresh=256
set ce:ce_taskq_disable=1
set ce:ce_ring_size=256
set ce:ce_comp_ring_size=1024
set ce:ce_tx_ring_size=4096
One Solaris Container used for the satellite driver.
The Emulator ran in the default Solaris Container.

Load Driver HW Primary (non-SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire V880	OS Name:	Solaris 10 (64-bit)
Processor:	UltraSPARC III Cu	Filesystem:	UFS
MHz:	900	Disks:	6 x 36GB Internal FC
# of CPUs:	8 cores, 8 chips, 1 core/chip	Network Interface:	(2) Onboard 1000BaseT Ethernet
Memory (MB):	32768	Other Hardware:
L1 Cache:	32KB(I)+64KB(D)	# of Systems:	1
L2 Cache:	8MB	H/W Available:	Jun-2002
Other Cache:		OS Available:	Mar-2005

Notes / Tuning Information
System Tuning in /etc/system: set ce:ce_bcopy_thresh=256 set ce:ce_dvma_thresh=256 set ce:ce_taskq_disable=1 set ce:ce_ring_size=256 set ce:ce_comp_ring_size=1024 set ce:ce_tx_ring_size=4096

Load Driver HW Satellites #1-#3 (non-SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire E2900	OS Name:	Solaris 10 1/06 (64-bit)
Processor:	UltraSPARC IV+	Filesystem:	UFS
MHz:	1500	Disks:	2x 73GB 10K RPM Ultra320 SCSI
# of CPUs:	16 cores, 8 chips, 2 cores/chip	Network Interface:	(2) Onboard 1000BaseT Ethernet & (4) GigaSwift 1000BaseT Ethernet
Memory (MB):	65536	Other Hardware:
L1 Cache:	64KB(I)+64KB(D) per core on chip	# of Systems:	1
L2 Cache:	2MB(I+D) per core on chip	H/W Available:	Oct-2005
Other Cache:	32MB(I+D) per chip	OS Available:	Jan-2006

Notes / Tuning Information

System Tuning in /etc/system:
set ce:ce_bcopy_thresh=256
set ce:ce_dvma_thresh=256
set ce:ce_taskq_disable=1
set ce:ce_ring_size=256
set ce:ce_comp_ring_size=1024
set ce:ce_tx_ring_size=4096
System was divided into 3 logical partitions using Solaris Containers.
Each logical partition is a satellite driver.

Load Driver HW Satellite #7-#10 (non-SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire V890	OS Name:	Solaris 10 6/06(64-bit)
Processor:	UltraSPARC IV+	Filesystem:	UFS
MHz:	1800	Disks:	12 x 72Gb FC
# of CPUs:	16 cores, 8 chips, 2 cores/chip	Network Interface:	(2) Onboard 1000BaseT Ethernet & (4) GigaSwift 1000BaseT Ethernet
Memory (MB):	65536	Other Hardware:
L1 Cache:	64KB(I)+64KB(D) per core on chip	# of Systems:	2
L2 Cache:	2MB(I+D) per core on chip	H/W Available:	Aug-2006
Other Cache:	32MB(I+D) per chip	OS Available:	Jun-2006

Notes / Tuning Information

System Tuning in /etc/system:
set ce:ce_bcopy_thresh=256
set ce:ce_dvma_thresh=256
set ce:ce_taskq_disable=1
set ce:ce_ring_size=256
set ce:ce_comp_ring_size=1024
set ce:ce_tx_ring_size=4096
System was divided into 4 logical partitions using Solaris Containers.
Each logical partition is a satellite driver.

Load Driver HW Satellites #13-#17 (non-SUT hardware)

Hardware Vendor:	Sun Microsystems, Inc.	OS Vendor:	Sun Microsystems, Inc.
Model Name:	Sun Fire E2900	OS Name:	Solaris 10 1/06 (64-bit)
Processor:	UltraSPARC IV+	Filesystem:	UFS
MHz:	1800	Disks:	2x 73GB 10K RPM Ultra320 SCSI
# of CPUs:	24 cores, 12 chips, 2 cores/chip	Network Interface:	(2) Onboard 1000BaseT Ethernet & (4) GigaSwift 1000BaseT Ethernet
Memory (MB):	98304	Other Hardware:
L1 Cache:	64KB(I)+64KB(D) per core on chip	# of Systems:	2
L2 Cache:	2MB(I+D) per core on chip	H/W Available:	Aug-2006
Other Cache:	32MB(I+D) per chip	OS Available:	Jan-2006

Notes / Tuning Information

System Tuning in /etc/system:
set ce:ce_bcopy_thresh=256
set ce:ce_dvma_thresh=256
set ce:ce_taskq_disable=1
set ce:ce_ring_size=256
set ce:ce_comp_ring_size=1024
set ce:ce_tx_ring_size=4096
System was divided into 5 logical partitions using Solaris Containers.
Each logical partition is a satellite driver.

Benchmark Modifications
Schema Modifications: Tablespace sizes were increased to support the Injection rate. Scripts to create the DB are included in the FDA.
Load Program Modifications: The load program was not modified

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 translates to DB2 isolation level of Read Stability (RS) The ItemEnt bean was cached for 20 minute intervals by setting concurrency-strategy to ReadOnly and read-timeout-seconds to 1200 in bea-orders.xml deployment descriptor.
Durability Requirement Info: To ensure database durability, RAID 1 (mirror disks) was used for the database files and logs on the two Sun StorageTek 3510 arrays. Each application server used a pair of mirrored disks in the Sun StorageTek 3510 array to provide durability for all the server logs and filestore for JMS persistence.
Storage Requirement Info: An 85 minute run at an injection rate of 1070 increased storage by 1048 MB This extrapolates to 17.35 GB of storage for a 24 hour run. The database is configured with 2628 GB of storage. One Sun StorageTek 3510 FC Array was configured as a single RAID 1 logical drive to store the database files. The other Sun StorageTek 3510 FC Array was configure as two RAID 1 logical drives - one logical drive for the database logs and the other logical drive used for the application server JMS persistence logs.
Argument Passing Semantics: BEA WebLogic 9.2 uses pass-by-value as required by the EJB Specification.

Bill of Materials



Supplier  Description                                Product No.          Qty
--------  ----------------------------------------   ------------------   ---
Sun       Sun Fire E2900 1.95GHz PCI-X Bundle	     SYS2900B-4-1950-Z     1
Sun       E2900 BRD:4 USIV+ @1.95GHz/32GB            E29BRD484-1950-Z	   2
Sun       Sun GigaSwift Network Adapter              X4150A-2              4
Sun       Sun StorageTek 2 GB FC Adaptor             SG-XPCI1FC-QLC-Z      1
Sun       Solaris 10 11/06 Media                     SOLZ9-10FC9A7M        1
Sun       SF E2900 O/S Upgrade: 3YGOLD, 24x7         W9D-E29-24-3G         1

Sun       Sun Fire T2000, 1x1.2 GHz T1, 32 GB        T20-108B-32GA2C       1
Sun       Solaris 10 6/06 Media                      SOLZ9-10EC9A7M        1
Sun       Sun StorageTek 4 GB Dual FC Adaptor        SG-XPCI2FC-EM4-Z	   1
Sun       SunSpectrum Upgrade: 3YGOLD, 24x7          W9D-T2000-8-24-3G	   1

Sun       Sun StorageTek 3510, 12 x 146GB, 1 RAID    XTA3510R01A1R1752     1
Sun       Sun StorageTek 3510, 12 x 73GB, 1 RAID     XTA3510R01A1R876      1
Sun       SunSpectum Upgrade: 3Y GOLD, 24x7          W9D-SE3510-24-3G      2

Sun       17" Entry Color Monitor                    X7204A                1
Sun       XVR-200 Graphics Accelerator               X3777                 2
Sun       USB Keyboard & Mouse                       320-1271              1

BEA       BEA WebLogic Server 9.2 License,  Advantage Edition             12 
BEA       3-year 24x7x4 Support for WebLogic Server                       12 

IBM       DB2 UDB ENTERPRISE SERVER EDITION PROCESSOR  D518GLL           2.4
          LIC+SW MAINT 12 MO
IBM       DB2 UDB ENTERPRISE SERVER EDITION PROCESSOR  E00BILL           4.8
          SW MAINT RNWL 1 ANNIV

Other Benchmark Information

  The submission used round-robin DNS for load-balance of
  all network requests. The DNS server was hosted
  on the database server.
  
  This submission used the xerces implementation 2.6.2 provided
  with WebLogic 9.2

General Notes

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

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
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 questions about this result, please contact the submitter: Sun Microsystems Inc.
For other inquiries, please contact webmaster@spec.org

Benchmark run on Wed Mar 07 23:33:52 EST 2007 by SPECjAppServer2004 v1.06
Result submitted on Wed Mar 14 04:03:01 EDT 2007
Report generated by SPECjAppServer2004 Reporter v1.03

First published at SPEC.org on 03-Apr-2007