SPECweb2005 Result: IBM: eServer xSeries BladeCenter HS20

SPECweb2005 Result
Copyright © 2005 Standard Performance Evaluation Corporation

IBM: eServer xSeries BladeCenter HS20
Zeus Technology Ltd.: Zeus Web Server v4.2r4 (x86-64)
Apache Software Foundation: Apache Tomcat 5.5.9

SPECweb2005 = 4177

SPECweb2005_Banking = 7140

SPECweb2005_Ecommerce = 4695

SPECweb2005_Support = 4820

Tested By: IBM

SPEC License #: 11

Test Date: Aug-2005

Performance and Configuration Section
Performance Section
Configuration Section

Details Section
Banking Details
Ecommerce Details
Support Details

Notes Section
Banking Notes
Ecommerce Notes
Support Notes

Errors Section
Banking Errors
Ecommerce Errors
Support Errors

Performance

Banking

Simultaneous
User Sessions

Test
Iteration

Aggregate QOS Compliance

Good	Tolerable	Fail

Validation Errors

7140

97.3%

99.7%

0.2%

95.3%

99.9%

0.0%

96.4%

99.7%

0.2%

Ecommerce

Simultaneous
User Sessions

Test
Iteration

Aggregate QOS Compliance

Good	Tolerable	Fail

Validation Errors

4695

96.0%

99.4%

0.5%

95.4%

99.1%

0.8%

96.0%

99.5%

0.4%

Support

Simultaneous
User Sessions

Test
Iteration

Aggregate QOS Compliance

Good	Tolerable	Fail

Validation Errors

4820

98.2%

99.9%

0.0%

98.0%

99.9%

0.0%

97.3%

99.9%

0.0%

Configuration

Availability Dates
SUT Hardware	Sep-2005
Backend Simulator	Nov-2003
Web Server Software	Dec-2003
Operating System	Jan-2005
Other Components	N/A

System Under Test (SUT)

# of SUTs 1

Vendor IBM

Model eServer xSeries BladeCenter HS20

Processor 3.8 GHz Intel Xeon

Processor Speed (MHz) 3800

# Processors 2 cores, 2 chips, 1 core/chip (Hyper-Threading enabled)

Primary Cache 12KB(I) + 16KB(D) on chip

Secondary Cache 2048 KB

Other Cache N/A

Memory 8 GB

Disk Subsystem 1 x 36GB SCSI

Disk Controllers QLogic Fiber Channel

Operating System SUSE Linux Enterprise Server 9.2 SP1

File System ext2

Other Hardware null

Other Software Sun Java(TM) 2 Runtime Environment, Standard Edition 1.5.04

SUT Network

# of Controllers 1

Network Controllers Broadcom

# of Networks 1

Network Type Gigabit Ethernet

Network Speed 1 Gb/s

MSL (sec) 30 (Non RFC1122)

Time-Wait (sec) 60 (Non RFC1122)

MTU Size 1500

Web Server Software
Vendor	Zeus Technology Ltd.
Name/Version	Zeus Web Server v4.2r4 (x86-64)
Dynamic Scripts	SPEC-JSP
Server Cache	N/A
Log Mode	Zeus Binary Common Log Format

Script Engine
Vendor	Apache Software Foundation
Name/Version	Apache Tomcat 5.5.9
Dynamic Scripts	JSP
Server Cache	null
Log Mode	Common Log Format

Clients

# of Clients 12

Model eServer xSeries x336

Processor Xeon

Processor Speed (MHz) 2800

# Processors 2

Memory 2 GB

Network Controller IBM NetXtreme BCM5721 Gigabit Ethernet PCI Express

Operating System SUSE Linux 9.2 (kernel 2.6.8-24-smp)

JVM Version Java 2 Runtime Environment, Std Edition (build 1.4.2_01-b06)

JIT Version Java HotSpot Client VM (build 1.4.2_01-b06, mixed mode)

Other Hardware N/A

Other Software N/A

Backend Simulator (BESIM)

# of Simulators 1

Model eServer xSeries x336

Processor Xeon

Processor Speed (MHz) 2800

# of Processors 2

Memory 2 GB

Network Controller IBM NetXtreme BCM5721 Gigabit Ethernet PCI Express

Operating System SUSE Linux 9.2 (kernel 2.6.8-24-smp)

File System ext2

Web Server Zeus Web Server v4.2r4 (x86-64)

Server Scripts SPEC-FCGI v1.0

Other Hardware N/A

Other Software N/A

Banking Run Details

Test results for each iteration

Iteration

Request Type

Total Reqs

QOS

Good	Tolerable	Fail

Weighted
ABR

Avg Resp
Time (sec)

Average
Bytes/Req

382868

375117

7409

342

7007.4

1.235

34408

account_summary

269423

263372

5337

714

3951.6

1.153

27573

check_detail_html

150805

144649

5701

455

1927.5

1.265

24029

bill_pay

245442

239878

4900

664

3329.6

1.147

25503

add_payee

19912

19532

325

279.6

1.118

26401

payee_info

14342

13317

972

335.0

1.398

43915

quick_pay

117333

109260

7662

411

2076.3

1.377

33268

billpay_status

39256

38549

613

693.1

1.128

33194

chg_profile

21694

20871

755

499.4

1.285

43277

post_profile

15663

15256

353

305.9

1.194

36722

req_checks

21430

16410

4945

1004.6

1.815

88131

post_chk_order

15482

14969

455

273.5

1.226

33215

req_xfer_form

30957

30544

323

363.2

1.046

22060

post_fund_xfer

22193

21467

644

289.8

1.219

24549

logout

109152

106622

2219

311

4365.0

1.33

75180

check_image

301809

301673

136

1710.4

0.22

10654

Total

1777761

1731486	42613	3662

28412.5

381469

369102

12329

6875.4

1.229

34440

account_summary

268335

255271

12842

222

3874.4

1.188

27590

check_detail_html

150164

140170

9824

170

1888.5

1.293

24032

bill_pay

244524

232549

11763

212

3263.2

1.183

25500

add_payee

19860

19055

791

274.4

1.147

26403

payee_info

14291

12567

1705

328.4

1.428

43914

quick_pay

116804

103511

13068

225

2033.7

1.42

33270

billpay_status

39057

37487

1547

678.3

1.166

33187

chg_profile

21646

20061

1558

490.1

1.322

43270

post_profile

15584

14708

863

299.5

1.23

36725

req_checks

21454

15538

5873

989.6

1.84

88145

post_chk_order

15500

14443

1045

269.5

1.258

33226

req_xfer_form

30815

29909

883

355.9

1.07

22075

post_fund_xfer

22119

20578

1520

284.0

1.256

24542

logout

108847

102868

5894

4282.9

1.365

75189

check_image

300523

300468

1675.4

0.228

10653

Total

1770992

1688285	81559	1148

27863.9

382586

372823

8709

1054

7011.1

1.225

34412

account_summary

269333

260101

8554

678

3955.0

1.154

27574

check_detail_html

150808

142762

7600

446

1929.9

1.261

24031

bill_pay

245108

236742

7771

595

3328.1

1.147

25497

add_payee

19886

19301

531

279.6

1.118

26405

payee_info

14313

12980

1252

334.7

1.411

43916

quick_pay

117166

107022

9601

543

2075.9

1.385

33271

billpay_status

39156

38025

1002

129

691.9

1.136

33185

chg_profile

21740

20581

1093

501.0

1.286

43279

post_profile

15675

15078

544

306.5

1.196

36723

req_checks

21510

16337

5087

1009.5

1.816

88129

post_chk_order

15548

14811

661

275.1

1.234

33225

req_xfer_form

30937

30284

582

363.4

1.043

22062

post_fund_xfer

22186

21086

1002

289.9

1.222

24540

logout

109001

104968

3736

297

4364.5

1.34

75190

check_image

301771

301602

119

1711.5

0.22

10650

Total

1776724

1714503	57775	4446

28428.1

Notes for Banking Workload

SUT Notes

BladeCenter Fiber Channel 2-port Switch for disk array
Five enclosures (containing 14 disks) configured as software raid0
Total of five enclosures and 70 drives are used for fileset
The total number of fileset directories (200 directories) are evenly distributed across five drives
1 Extreme Networks Summit 400-48t Switch
1 eServer BladeCenter Chassis
2 eServer BladeCenter 4-port GB Ethernet Switch Modules
1 eServer BladeCenter Optical Passthru Module

Operating System Notes

net.ipv4.ip_forward=1, default 0
net.ipv4.tcp_timestamps = 0, turns TCP timestamp support off, default 1
net.ipv4.tcp_max_tw_buckets = 2000000, sets TCP time-wait buckets pool size, default 180000
net.core.wmem_max = 10000000, maximum send socket buffer size, default 131071
net.core.wmem_default = 10000000, default send socket buffer size, default 135168
net.core.optmem_max = 10000000, default 20480
net.ipv4.tcp_rmem = 30000000 30000000 30000000, maximum TCP read-buffer space allocatable, default 4096 87380 174760
net.ipv4.tcp_wmem = 30000000 30000000 30000000, maximum TCP write-buffer space allocatable, default 4096 87380 174760
net.ipv4.tcp_mem = 30000000 30000000 30000000, maximum TCP buffer space, default 392192 392704 393216
net.ipv4.tcp_max_syn_backlog = 8192, default 1024
fs.file-max = 442961, sets number of open file handles kernel allocates, default 904396
net.core.somaxconn = 10000, size of the listen queue for accepting new TCP connections, default 128
Each NICs txqueuelen set to 60000, default 1000
irqbalancer service was disabled during run
ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 70656
No modifications to default kernel configuration

HTTP Software Notes

tuning!max_connections -1
tuning!listen_queue_size 8192, size of TCP listen queue, default 256
tuning!so_wbuff_size 1048576, size of socket write buffer, default unset
tuning!so_rbuff_size 1048576, size of socket read buffer, default unset
tuning!maxaccept 7000, max number of accept calls per server socekt, default 32
tuning!clientfirst_optimise yes, connection not accepted till data is ready, default no
tuning!unique_bind no, have server sockets bind to IPADDR_ANY, default no
tuning!bind_any yes, bind to all available interfaces on a machine, default yes
tuning!softservers no, enable software virtual servers, default yes
tuning!keepalive yes, enable keepalive connections, default yes
tuning!timeout 1800, timeout for client transfers (seconds), if the server is unable to communicate with the client for this period of time the connection is closed, default 120
tuning!ssl_keepalive yes, enable SSL keepalive, default yes
tuning!keepalive_timeout 1800, time after which an inactive keepalive connection is closed
tuning!keepalive_max -1, time after which an inactive keepalive connection is closed
tuning!modules!stats!enabled no, enable the stats module, default no
tuning!modules!cgi!enabled no, enable the cgi module, default no
tuning!modules!nsapi!enabled no, enable the nsapi module, default no
tuning!modules!isapi!enabled no, enable the isapi runner, default yes
tuning!counters_enabled no, enable or disable the real time monitor counter, default yes
tuning!modules!cgi!cleansize 0, number of file descriptors to close before exec, default unset
tuning!num_children 4, number of child processes to run, default 4
tuning!ssl_cbuff_size 65536, size of SSL circular buffer, default 16404
tuning!ssl_sessioncache_size 22993, size of SSL session cache, default 199
tuning!ssl_diskcache no, defaults to 'yes' on multiprocessor system, default yes
tuning!cbuff_size 1048576, cgi buffer size, default 8192

HTTP Script Notes

SPEC-provided JSP scripts used without modification
Apache Tomcat 5.5.9 is used as JSP engine
Java Options = -Xms1250m -Xms1250m -Xss512k -Xcompactexplicitgc, optimize garbage collection for applications and set JVM heap size to 4GB, set stack size to 512KB
server.xml tuning:
maxThreads=8000, max number of sessions, default 150
minSpareThreads=2000, number of threads created when connector starts, default 25
maxSpareThreads=3000, max number of unused threads allowed, default 75
acceptCount=50000, max queue length for connection requests, default 100

Client Notes

ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 7168
java -Xms512m -Xmx512m -Xss256k -Xcompactexplicitgc specwebclient

BESIM Notes

BESIM is a physically separate machine
ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 7168
Apache using mod_fastcgi
Apache httpd.conf:
StartServer 100, specifies the number of child server processes that will be created by Apache on start-up, default 5
MinSpareServers 250, specifies the minimum number of idle child server processes for Apache, which is not handling a request, default 5
MaxSpareServers 1500, specifies the maximum number of idle child server processes for Apache, which is not handling a request, default 10
MaxClients 1500, sets the limit on the number of simultaneous requests that can be supported, no more than this number of child server processes will be created, default 256
MaxRequestsPerChild 0, specifies the number of requests that an individual child server process will handle (0 unlimited), default 0
KeepAlive on, if set to On, specifies enabling persistent connections on this web server, default off
KeepAliveTimeout 600, specifies how much time, in seconds, Apache will wait for a subsequent request before closing the connection, default 15
ServerLimit 1500
No additional fcgi tuning is implemented

Other Notes

Errors for Banking Workload

Quality of Service Errors

No QOS Errors Found

Validation Errors

No Validation Errors Found

Ecommerce Run Details

Test results for each iteration

Iteration

Request Type

Total Reqs

QOS

Good	Tolerable	Fail

Weighted
ABR

Avg Resp
Time (sec)

Average
Bytes/Req

index

100940

99944

959

10385.2

1.696

138554

50828

50618

210

6955.5

1.939

184288

browse

90565

89254

1263

10424.0

1.839

155005

browse_productline

77492

76729

763

10566.8

1.981

183635

productdetail

61975

61311

660

2466.3

1.088

53593

customize1

130463

128675

1779

16002.7

1.8

165186

customize2

68904

67841

1059

8414.1

1.806

164449

customize3

47459

39204

6754

1501

6242.5

2.499

177136

cart

40887

35385

4348

1154

2229.4

1.815

73430

29061

25137

3215

709

1048.2

1.588

48574

shipping

27323

24290

2462

571

872.2

1.403

42991

billing

25938

23019

2375

544

637.7

1.403

33109

confirm

19368

19084

282

458.2

0.837

31862

Total

771203

740491	26129	4583

76703.2

index

100699

99416

1235

10259.5

1.702

138508

50769

50546

223

6882.3

1.942

184294

browse

90172

88488

1642

10285.8

1.849

155075

browse_productline

77176

76218

951

10425.9

1.987

183657

productdetail

61673

60905

762

2433.5

1.097

53643

customize1

129936

127487

2417

15788.4

1.815

165190

customize2

68508

66869

1609

8287.0

1.826

164449

customize3

47215

38557

6513

2145

6152.1

2.552

177143

cart

40749

34843

4230

1676

2210.0

1.891

73732

28995

24876

3057

1062

1023.7

1.642

48002

shipping

27319

24046

2444

829

863.9

1.457

42991

billing

25984

22775

2323

886

632.8

1.484

33109

confirm

19468

19038

421

456.2

0.873

31862

Total

768663

734064	27827	6772

75701.5

index

100487

99636

827

10214.8

1.696

138552

50617

50476

141

6843.9

1.938

184291

browse

90117

88938

1147

10249.3

1.84

155018

browse_productline

77120

76517

598

10389.8

1.979

183627

productdetail

61641

61141

495

2419.7

1.084

53504

customize1

129818

128734

1083

15733.0

1.789

165185

customize2

68431

67773

655

8256.2

1.793

164446

customize3

47132

37966

7902

1264

6125.9

2.555

177153

cart

40679

34980

4745

954

2198.5

1.957

73666

28969

24834

3576

559

1019.0

1.766

47948

shipping

27306

24237

2610

459

861.2

1.585

42991

billing

25888

22864

2607

417

628.8

1.603

33109

confirm

19350

19143

205

452.3

0.93

31862

Total

767555

737239	26591	3725

75393.2

Notes for Ecommerce Workload

SUT Notes

BladeCenter Fiber Channel 2-port Switch for disk array
Five enclosures (containing 14 disks) configured as software raid0
Total of five enclosures and 70 drives are used for fileset
The total number of fileset directories (200 directories) are evenly distributed across five drives
1 Extreme Networks Summit 400-48t Switch
1 eServer BladeCenter Chassis
2 eServer BladeCenter 4-port GB Ethernet Switch Modules
1 eServer BladeCenter Optical Passthru Module

Operating System Notes

net.ipv4.ip_forward=1, default 0
net.ipv4.tcp_timestamps = 0, turns TCP timestamp support off, default 1
net.ipv4.tcp_max_tw_buckets = 2000000, sets TCP time-wait buckets pool size, default 180000
net.core.wmem_max = 10000000, maximum send socket buffer size, default 131071
net.core.wmem_default = 10000000, default send socket buffer size, default 135168
net.core.optmem_max = 10000000, default 20480
net.ipv4.tcp_rmem = 30000000 30000000 30000000, maximum TCP read-buffer space allocatable, default 4096 87380 174760
net.ipv4.tcp_wmem = 30000000 30000000 30000000, maximum TCP write-buffer space allocatable, default 4096 87380 174760
net.ipv4.tcp_mem = 30000000 30000000 30000000, maximum TCP buffer space, default 392192 392704 393216
net.ipv4.tcp_max_syn_backlog = 8192, default 1024
fs.file-max = 442961, sets number of open file handles kernel allocates, default 904396
net.core.somaxconn = 10000, size of the listen queue for accepting new TCP connections, default 128
Each NICs txqueuelen set to 60000, default 1000
irqbalancer service was disabled during run
ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 70656
No modifications to default kernel configuration

HTTP Software Notes

tuning!max_connections -1, maximum number of connections to process simultaneously, default is approx. half of available file descriptors
tuning!listen_queue_size 8192, size of TCP listen queue, default 256
tuning!so_wbuff_size 1048576, size of socket write buffer, default unset
tuning!so_rbuff_size 1048576, size of socket read buffer, default unset
tuning!maxaccept 7000, max number of accept calls per server socekt, default 32
tuning!clientfirst_optimise yes, connection not accepted till data is ready, default no
tuning!unique_bind no, have server sockets bind to IPADDR_ANY, default no
tuning!bind_any yes, bind to all available interfaces on a machine, default yes
tuning!softservers no, enable software virtual servers, default yes
tuning!keepalive yes, enable keepalive connections, default yes
tuning!ssl_keepalive yes, enable ssl_keepalive connections, default yes
tuning!timeout 1800, timeout for client transfers (seconds), if the server is unable to communicate with the client for this period of time the connection is closed, default 120
tuning!keepalive yes, enable keepalive, default yes
tuning!keepalive_timeout 1800, time after which an inactive keepalive connection is closed
tuning!keepalive_max -1, time after which an inactive keepalive connection is closed
tuning!modules!stats!enabled no, enable the stats module, default no
tuning!modules!cgi!enabled no, enable the cgi module, default no
tuning!modules!nsapi!enabled no, enable the nsapi module, default no
tuning!modules!isapi!enabled no, enable the isapi runner, default yes
tuning!counters_enabled no, enable or disable the real time monitor counter, default yes
tuning!modules!cgi!cleansize 0, number of file descriptors to close before exec, default unset
tuning!num_children 2, number of child processes to run, default 4
tuning!ssl_cbuff_size 65536, size of SSL circular buffer, default 16404
tuning!ssl_sessioncache_size 22993, size of SSL session cache, default 199
tuning!ssl_diskcache no, defaults to 'yes' on multiprocessor system, default yes
tuning!cbuff_size 1048576, cgi buffer size, default 8192

HTTP Script Notes

SPEC-provided JSP scripts used without modification
Apache Tomcat 5.5.9 is used as JSP engine
Java Options = -Xms1250m -Xms1250m -Xss512k -Xcompactexplicitgc, optimize garbage collection for applications and set JVM heap size to 4GB, set stack size to 512KB
server.xml tuning:
maxThreads=8000, max number of sessions, default 150
minSpareThreads=2000, number of threads created when connector starts, default 25
maxSpareThreads=3000, max number of unused threads allowed, default 75
acceptCount=50000, max queue length for connection requests, default 100

Client Notes

ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 7168
java -Xms512m -Xmx512m -Xss256k -Xcompactexplicitgc specwebclient

BESIM Notes

BESIM is a physically separate machine
ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 7168
Apache using mod_fastcgi
Apache httpd.conf:
StartServer 100, specifies the number of child server processes that will be created by Apache on start-up, default 5
MinSpareServers 250, specifies the minimum number of idle child server processes for Apache, which is not handling a request, default 5
MaxSpareServers 1500, specifies the maximum number of idle child server processes for Apache, which is not handling a request, default 10
MaxClients 1500, sets the limit on the number of simultaneous requests that can be supported, no more than this number of child server processes will be created, default 256
MaxRequestsPerChild 0, specifies the number of requests that an individual child server process will handle (0 unlimited), default 0
KeepAlive on, if set to On, specifies enabling persistent connections on this web server, default off
KeepAliveTimeout 600, specifies how much time, in seconds, Apache will wait for a subsequent request before closing the connection, default 15
ServerLimit 1500
No additional fcgi tuning is implemented

Other Notes

Errors for Ecommerce Workload

Quality of Service Errors

No QOS Errors Found

Validation Errors

No Validation Errors Found

Support Run Details

Test results for each iteration

Iteration

Request Type

Total Reqs

QOS

Good	Tolerable	Fail

Weighted
ABR

Avg Resp
Time (sec)

Average
Bytes/Req

home

64146

64106

770.1

1.128

59844

99704

99638

539.0

0.854

26950

catalog

92274

92228

623.9

0.854

33701

product

195130

190056

5039

2605.1

2.018

66545

fileCatalog

178152

174892

3255

3750.6

2.241

104935

file

107285

101985

5295

2655.6

2.422

123377

download

53478

53443

74127.2

69.089

6908910

Total

790169

776348	13773	48

85071.9

home

64342

64305

771.3

1.124

59848

99875

99829

539.2

0.848

26952

catalog

92421

92388

623.7

0.849

33692

product

195570

190573

4915

2606.7

2.007

66542

fileCatalog

178503

174288

4179

3751.7

2.241

104926

file

107434

101518

5904

2655.0

2.421

123376

download

53631

53597

74192.0

69.062

6906244

Total

791776

776498	15136	142

85139.8

home

64180

64169

770.3

1.134

59848

99711

99695

538.9

0.865

26953

catalog

92276

92261

623.5

0.867

33695

product

195364

188311

7035

2606.9

2.034

66538

fileCatalog

178320

172293

6026

3752.8

2.258

104939

file

107395

99277

8116

2657.3

2.441

123382

download

53513

53474

73895.4

68.856

6885601

Total

790759

769480	21252	27

84845.5

Notes for Support Workload

SUT Notes

BladeCenter Fiber Channel 2-port Switch for disk array
Five enclosures (containing 14 disks) configured as software raid0
Total of five enclosures and 70 drives are used for fileset
The total number of fileset directories (200 directories) are evenly distributed across five drives
1 Extreme Networks Summit 400-48t Switch
1 eServer BladeCenter Chassis
2 eServer BladeCenter 4-port GB Ethernet Switch Modules
1 eServer BladeCenter Optical Passthru Module

Operating System Notes

net.ipv4.ip_forward=1, default 0
net.ipv4.tcp_timestamps = 0, turns TCP timestamp support off, default 1
net.ipv4.tcp_max_tw_buckets = 2000000, sets TCP time-wait buckets pool size, default 180000
net.core.wmem_max = 10000000, maximum send socket buffer size, default 131071
net.core.wmem_default = 10000000, default send socket buffer size, default 135168
net.core.optmem_max = 10000000, default 20480
net.ipv4.tcp_rmem = 30000000 30000000 30000000, maximum TCP read-buffer space allocatable, default 4096 87380 174760
net.ipv4.tcp_wmem = 30000000 30000000 30000000, maximum TCP write-buffer space allocatable, default 4096 87380 174760
net.ipv4.tcp_mem = 30000000 30000000 30000000, maximum TCP buffer space, default 392192 392704 393216
net.ipv4.tcp_max_syn_backlog = 8192, default 1024
fs.file-max = 442961, sets number of open file handles kernel allocates, default 904396
net.core.somaxconn = 10000, size of the listen queue for accepting new TCP connections, default 128
Each NICs txqueuelen set to 60000, default 1000
irqbalancer service was disabled during run
ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 70656
No modifications to default kernel configuration

HTTP Software Notes

tuning!max_connections -1, maximum number of connections to process simultaneously, default is approx. half of available file descriptors
tuning!listen_queue_size 8192, size of TCP listen queue, default 256
tuning!so_wbuff_size 1048576, size of socket write buffer, default unset
tuning!so_rbuff_size 1048576, size of socket read buffer, default unset
tuning!maxaccept 7000, max number of accept calls per server socekt, default 32
tuning!clientfirst_optimise yes, connection not accepted till data is ready, default no
tuning!unique_bind no, have server sockets bind to IPADDR_ANY, default no
tuning!bind_any yes, bind to all available interfaces on a machine, default yes
tuning!softservers no, enable software virtual servers, default yes
tuning!keepalive yes, enable keepalive connections, default yes
tuning!timeout 1800, timeout for client transfers (seconds), if the server is unable to communicate with the client for this period of time the connection is closed, default 120
tuning!keepalive_timeout 1800, time after which an inactive keepalive connection is closed
tuning!keepalive_max -1, time after which an inactive keepalive connection is closed
tuning!modules!stats!enabled no, enable the stats module, default no
tuning!modules!cgi!enabled no, enable the cgi module, default no
tuning!modules!nsapi!enabled no, enable the nsapi module, default no
tuning!modules!isapi!enabled no, enable the isapi runner, default yes
tuning!counters_enabled no, enable or disable the real time monitor counter, default yes
tuning!modules!cgi!cleansize 0, number of file descriptors to close before exec, default unset
tuning!num_children 2, number of child processes to run, default 4
tuning!ssl_diskcache no, defaults to 'yes' on multiprocessor system, default yes
tuning!cbuff_size 1048576, cgi buffer size, default 8192

HTTP Script Notes

SPEC-provided JSP scripts used without modification
Apache Tomcat 5.5.9 is used as JSP engine
Java Options = -Xms1250m -Xms1250m -Xss512k -Xcompactexplicitgc, optimize garbage collection for applications and set JVM heap size to 4GB, set stack size to 512KB
server.xml tuning:
maxThreads=8000, max number of sessions, default 150
minSpareThreads=2000, number of threads created when connector starts, default 25
maxSpareThreads=3000, max number of unused threads allowed, default 75
acceptCount=50000, max queue length for connection requests, default 100

Client Notes

ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 7168
java -Xms512m -Xmx512m -Xss256k -Xcompactexplicitgc specwebclient

BESIM Notes

BESIM is a physically separate machine
ulimit -n 1000000, sets number of open files, default 1024
ulimit -u 1000000, sets max user processes, default 7168
Apache using mod_fastcgi
Apache httpd.conf:
StartServer 100, specifies the number of child server processes that will be created by Apache on start-up, default 5
MinSpareServers 250, specifies the minimum number of idle child server processes for Apache, which is not handling a request, default 5
MaxSpareServers 1500, specifies the maximum number of idle child server processes for Apache, which is not handling a request, default 10
MaxClients 1500, sets the limit on the number of simultaneous requests that can be supported, no more than this number of child server processes will be created, default 256
MaxRequestsPerChild 0, specifies the number of requests that an individual child server process will handle (0 unlimited), default 0
KeepAlive on, if set to On, specifies enabling persistent connections on this web server, default off
KeepAliveTimeout 600, specifies how much time, in seconds, Apache will wait for a subsequent request before closing the connection, default 15
ServerLimit 1500
No additional fcgi tuning is implemented

Other Notes

Errors for Support Workload

Quality of Service Errors

No QOS Errors Found

Validation Errors

No Validation Errors Found

For questions about this result, please contact the submitter: IBM

First published at SPEC.org on 11-Oct-2005