• Article

Example of a Jetstress 2010 Test Summary Report

 

Applies to: Exchange Server 2010 SP1, Exchange Server 2010

Topic Last Modified: 2011-02-15

This topic provides you with an example of data that's available in a Jetstress 2010 performance test report, and explains where the key values are stored and how to interpret the data. The report is saved either in the Jetstress installation directory or the path specified in the configuration XML file.

Consider the guidelines in the following table when you're examining the data in a Jetstress 2010 report.

Test results table

Performance counter instance Guidelines for performance test Guidelines for stress test

I/O Database Reads Average Latency (msec)

The average value should be less than 20 milliseconds (msec) (.20) and the maximum values should be less than 50 msec.

The maximum value should be less than 100 msec.

I/O Log Writes Average Latency (msec)

Log disk writes are sequential, so average write latencies should be less than 10 msec, with a maximum of no more than 50 msec.

The maximum value should not exceed 100 msec.

%Processor Time

Average should be less than 80% and the maximum should be less than 90%.

Same as for performance test.

Available Mbytes (32-bit Windows Server only)

Minimum should be no less than 50 megabytes (MB).

Same as for performance test.

Free System Page Table Entries (32-bit Windows Server only)

Minimum should be no less than 5,000.

Same as for performance test.

Transition Pages Repurposed/sec (Windows Server 2003, Windows Server 2008, Windows Server 2008 R2)

Average should be less than 100.

Same as for performance test.

Reading the Jetstress Summary Test Report

In addition to the information in the following report examples, a complete Jetstress report includes logging data taken during the test. If the test fails, review this log to troubleshoot the Jetstress test run. See the following sections for example data:

Test Summary

Test Issues

Database Sizing and Throughput

Jetstress System Parameters

Database Configuration

Transactional I/O Performance

Background Database Maintenance I/O Performance

Log Replication I/O Performance

Total I/O Performance

Host System Performance

Test Log

Test Summary

This section contains a summary of the test, including when it started, when if finished, and which versions of operating system and ESE were used. The most important part of this section is the overall test result.

Test Summary  

Overall Test Result

Fail

Machine Name

Server01

Test Description

Test1

Test Start Time

7/15/2010 11:36:35 PM

Test End Time

7/16/2010 5:50:11 AM

Collection Start Time

7/15/2010 11:48:26 PM

Collection End Time

7/16/2010 5:48:24 AM

Jetstress Version

14.01.0180.003

Ese Version

14.01.0692.000

Operating System

Windows Server 2008 R2 Enterprise (6.1.7600.0)

Performance Log

C:\Program Files\Exchange Jetstress\Performance_2010_7_15_23_37_48.blg

Test Issues

This section explains any issues with the test.

Fail

Process has average log write latencies higher than 20.000

Database Sizing and Throughput

This section shows some detailed parameters regarding the test. A performance test should always have 100 percent for Capacity Percentage and Throughput Percentage. In this example a 20 GB LUN was used, Jetstress created a 16 GB database to test against which is only 80 percent of the available space. This is normal behavior; by default, in performance mode Jetstress uses 80 percent of the disk capacity to allow room for growth during the test process.

The most important value in this section is the Achieved Transactional I/O per Second. This value represents the level of IOPS achieved for the database alone, without BDM I/O or LOG I/O.

Achieved Transactional I/O per Second

1117.771

Target Transactional I/O per Second

705

Initial Database Size (bytes)

12665468616704

Final Database Size (bytes)

12677564989440

Database Files (Count)

34

Jetstress System Parameters

This section displays some system values that Jetstress used for this test. The important values for analysis are Thread Count and Number of Copies per Database.

Thread Count

3 (per database)

Minimum Database Cache

1088.0 MB

Maximum Database Cache

8704.0 MB

Insert Operations

40%

Delete Operations

20%

Replace Operations

5%

Read Operations

35%

Lazy Commits

70%

Run Background Database Maintenance

False

Number of Copies per Database

2

Database Configuration

This section lists the paths for each database and log combination. In this example, only one database was configured. Check that all the test databases are listed here and the path names are correct.

Instance Log path and database path

Instance2184.1

Log Path: D:\Exchange\MBS01_MBS02\LOG01_LOG02\LOG01
Database: D:\Exchange\MBS01_MBS02\DBS01_DBS02\DBS01\Jetstress001001.edb

Instance2184.2

Log Path: D:\Exchange\MBS01_MBS02\LOG01_LOG02\LOG02
Database: D:\Exchange\MBS01_MBS02\DBS01_DBS02\DBS02\Jetstress002001.edb

Instance2184.3

Log Path: D:\Exchange\MBS03_MBS04\LOG03_LOG04\LOG03
Database: D:\Exchange\MBS03_MBS04\DBS03_DBS04\DBS03\Jetstress003001.edb

Instance2184.4

Log Path: D:\Exchange\MBS03_MBS04\LOG03_LOG04\LOG04
Database: D:\Exchange\MBS03_MBS04\DBS03_DBS04\DBS04\Jetstress004001.edb

Instance2184.5

Log Path: D:\Exchange\MBS05_MBS06\LOG05_LOG06\LOG05
Database: D:\Exchange\MBS05_MBS06\DBS05_DBS06\DBS05\Jetstress005001.edb

Instance2184.6

Log Path: D:\Exchange\MBS05_MBS06\LOG05_LOG06\LOG06
Database: D:\Exchange\MBS05_MBS06\DBS05_DBS06\DBS06\Jetstress006001.edb

Instance2184.7

Log Path: D:\Exchange\MBS07_MBS08\LOG07_LOG08\LOG07
Database: D:\Exchange\MBS07_MBS08\DBS07_DBS08\DBS07\Jetstress007001.edb

Instance2184.8

Log Path: D:\Exchange\MBS07_MBS08\LOG07_LOG08\LOG08
Database: D:\Exchange\MBS07_MBS08\DBS07_DBS08\DBS08\Jetstress008001.edb

Instance2184.9

Log Path: D:\Exchange\MBS09_MBS10\LOG09_LOG10\LOG09
Database: D:\Exchange\MBS09_MBS10\DBS09_DBS10\DBS09\Jetstress009001.edb

Instance2184.10

Log Path: D:\Exchange\MBS09_MBS10\LOG09_LOG10\LOG10
Database: D:\Exchange\MBS09_MBS10\DBS09_DBS10\DBS10\Jetstress010001.edb

Instance2184.11

Log Path: D:\Exchange\MBS11_MBS12\LOG11_LOG12\LOG11
Database: D:\Exchange\MBS11_MBS12\DBS11_DBS12\DBS11\Jetstress011001.edb

Instance2184.12

Log Path: D:\Exchange\MBS11_MBS12\LOG11_LOG12\LOG12
Database: D:\Exchange\MBS11_MBS12\DBS11_DBS12\DBS12\Jetstress012001.edb

Instance2184.13

Log Path: D:\Exchange\MBS13_MBS14\LOG13_LOG14\LOG13
Database: D:\Exchange\MBS13_MBS14\DBS13_DBS14\DBS13\Jetstress013001.edb

Instance2184.14

Log Path: D:\Exchange\MBS13_MBS14\LOG13_LOG14\LOG14
Database: D:\Exchange\MBS13_MBS14\DBS13_DBS14\DBS14\Jetstress014001.edb

Instance2184.15

Log Path: D:\Exchange\MBS15_MBS16\LOG15_LOG16\LOG15
Database: D:\Exchange\MBS15_MBS16\DBS15_DBS16\DBS15\Jetstress015001.edb

Instance2184.16

Log Path: D:\Exchange\MBS15_MBS16\LOG15_LOG16\LOG16
Database: D:\Exchange\MBS15_MBS16\DBS15_DBS16\DBS16\Jetstress016001.edb

Instance2184.17

Log Path: D:\Exchange\MBS17_MBS18\LOG17_LOG18\LOG17
Database: D:\Exchange\MBS17_MBS18\DBS17_DBS18\DBS17\Jetstress017001.edb

Instance2184.18

Log Path: D:\Exchange\MBS17_MBS18\LOG17_LOG18\LOG18
Database: D:\Exchange\MBS17_MBS18\DBS17_DBS18\DBS18\Jetstress018001.edb

Instance2184.19

Log Path: D:\Exchange\MBS19_MBS20\LOG19_LOG20\LOG19
Database: D:\Exchange\MBS19_MBS20\DBS19_DBS20\DBS19\Jetstress019001.edb

Instance2184.20

Log Path: D:\Exchange\MBS19_MBS20\LOG19_LOG20\LOG20
Database: D:\Exchange\MBS19_MBS20\DBS19_DBS20\DBS20\Jetstress020001.edb

Instance2184.21

Log Path: D:\Exchange\MBS21_MBS22\LOG21_LOG22\LOG21
Database: D:\Exchange\MBS21_MBS22\DBS21_DBS22\DBS21\Jetstress021001.edb

Instance2184.22

Log Path: D:\Exchange\MBS21_MBS22\LOG21_LOG22\LOG22
Database: D:\Exchange\MBS21_MBS22\DBS21_DBS22\DBS22\Jetstress022001.edb

Instance2184.23

Log Path: D:\Exchange\MBS23_MBS24\LOG23_LOG24\LOG23
Database: D:\Exchange\MBS23_MBS24\DBS23_DBS24\DBS23\Jetstress023001.edb

Instance2184.24

Log Path: D:\Exchange\MBS23_MBS24\LOG23_LOG24\LOG24
Database: D:\Exchange\MBS23_MBS24\DBS23_DBS24\DBS24\Jetstress024001.edb

Instance2184.25

Log Path: D:\Exchange\MBS25_MBS26\LOG25_LOG26\LOG25
Database: D:\Exchange\MBS25_MBS26\DBS25_DBS26\DBS25\Jetstress025001.edb

Instance2184.26

Log Path: D:\Exchange\MBS25_MBS26\LOG25_LOG26\LOG26
Database: D:\Exchange\MBS25_MBS26\DBS25_DBS26\DBS26\Jetstress026001.edb

Instance2184.27

Log Path: D:\Exchange\MBS27_MBS28\LOG27_LOG28\LOG27
Database: D:\Exchange\MBS27_MBS28\DBS27_DBS28\DBS27\Jetstress027001.edb

Instance2184.28

Log Path: D:\Exchange\MBS27_MBS28\LOG27_LOG28\LOG28
Database: D:\Exchange\MBS27_MBS28\DBS27_DBS28\DBS28\Jetstress028001.edb

Instance2184.29

Log Path: D:\Exchange\MBS29_MBS30\LOG29_LOG30\LOG29
Database: D:\Exchange\MBS29_MBS30\DBS29_DBS30\DBS29\Jetstress029001.edb

Instance2184.30

Log Path: D:\Exchange\MBS29_MBS30\LOG29_LOG30\LOG30
Database: D:\Exchange\MBS29_MBS30\DBS29_DBS30\DBS30\Jetstress030001.edb

Instance2184.31

Log Path: D:\Exchange\MBS31_MBS32\LOG31_LOG32\LOG31
Database: D:\Exchange\MBS31_MBS32\DBS31_DBS32\DBS31\Jetstress031001.edb

Instance2184.32

Log Path: D:\Exchange\MBS31_MBS32\LOG31_LOG32\LOG32
Database: D:\Exchange\MBS31_MBS32\DBS31_DBS32\DBS32\Jetstress032001.edb

Instance2184.33

Log Path: D:\Exchange\MBS33_MBS34\LOG33_LOG34\LOG33
Database: D:\Exchange\MBS33_MBS34\DBS33_DBS34\DBS33\Jetstress033001.edb

Instance2184.34

Log Path: D:\Exchange\MBS33_MBS34\LOG33_LOG34\LOG34
Database: D:\Exchange\MBS33_MBS34\DBS33_DBS34\DBS34\Jetstress034001.edb

Transactional I/O Performance

This section of the report displays the Transactional I/O values that were achieved for each database. Transactional I/O doesn't include I/O for background database maintenance. Background database maintenance I/O is mostly sequential, so it isn't considered during the design phase.

Note

To validate that the test has met the design requirements, compare the I/O Database totals in this section to the design targets defined within the Mailbox Server Role Requirements Calculator. For more information about the calculator (and to download the calculator), see Exchange 2010 Mailbox Server Role Requirements Calculator. The content of each blog and its URL are subject to change without notice. The content within each blog is provided "AS IS" with no warranties, and confers no rights. Use of included script samples or code is subject to the terms specified in the Microsoft Terms of Use.

MSExchange Database ==> Instances I/O Database Reads Average Latency (msec) I/O Database Writes Average Latency (msec) I/O Database Reads/sec I/O Database Writes/sec I/O Database Reads Average Bytes I/O Database Writes Average Bytes I/O Log Reads Average Latency (msec) I/O Log Writes Average Latency (msec) I/O Log Reads/sec I/O Log Writes/sec I/O Log Reads Average Bytes I/O Log Writes Average Bytes

Instance2184.1

28.788

150.276

18.363

14.168

32768.000

36402.272

0.000

1.143

0.000

12.640

0.000

4617.448

Instance2184.2

27.288

160.559

18.716

14.442

32768.000

36380.427

0.000

1.094

0.000

12.773

0.000

4590.402

Instance2184.3

25.611

131.880

18.430

14.264

32768.000

36405.811

0.000

0.926

0.000

12.594

0.000

4618.781

Instance2184.4

25.658

149.153

18.631

14.372

32768.000

36413.780

0.000

0.932

0.000

12.810

0.000

4567.783

Instance2184.5

26.547

82.584

18.586

14.374

32768.000

36406.328

0.000

0.900

0.000

12.790

0.000

4632.490

Instance2184.6

28.128

109.103

18.341

14.134

32768.000

36388.266

0.000

0.883

0.000

12.615

0.000

4601.948

Instance2184.7

28.523

110.628

18.478

14.262

32768.000

36373.073

0.000

0.896

0.000

12.658

0.000

4600.100

Instance2184.8

26.931

129.272

18.668

14.431

32768.000

36377.041

0.000

0.906

0.000

12.811

0.000

4611.075

Instance2184.9

23.680

52.825

18.596

14.372

32768.000

36407.602

0.000

0.882

0.000

12.672

0.000

4616.554

Instance2184.10

23.613

68.903

18.795

14.496

32768.000

36344.407

0.000

0.871

0.000

12.786

0.000

4565.373

Instance2184.11

25.694

59.611

18.756

14.500

32768.000

36392.692

0.000

0.924

0.000

13.010

0.000

4621.956

Instance2184.12

27.017

76.981

18.492

14.299

32768.000

36393.472

0.000

0.927

0.000

12.792

0.000

4602.004

Instance2184.13

28.633

77.562

18.527

14.344

32768.000

36430.085

0.000

0.903

0.000

12.870

0.000

4593.545

Instance2184.14

27.203

97.136

18.504

14.240

32768.000

36376.929

0.000

0.886

0.000

12.763

0.000

4620.722

Instance2184.15

22.920

24.233

18.660

14.452

32768.000

36323.579

0.000

0.917

0.000

12.676

0.000

4631.163

Instance2184.16

22.961

29.348

18.589

14.335

32768.000

36368.822

0.000

0.918

0.000

12.660

0.000

4650.241

Instance2184.17

24.811

24.426

18.598

14.346

32768.000

36432.567

0.000

0.973

0.000

12.800

0.000

4629.810

Instance2184.18

26.056

28.449

18.524

14.320

32768.000

36361.993

0.000

0.958

0.000

12.745

0.000

4608.159

Instance2184.19

24.027

14.479

18.655

14.345

32768.000

36363.833

0.000

0.943

0.000

12.678

0.000

4593.663

Instance2184.20

22.555

16.074

18.575

14.293

32768.000

36309.241

0.000

0.951

0.000

12.599

0.000

4620.330

Instance2184.21

25.036

95.640

18.510

14.280

32768.000

36405.722

0.000

0.958

0.000

12.727

0.000

4595.717

Instance2184.22

25.202

110.976

18.306

14.129

32768.000

36435.257

0.000

0.953

0.000

12.587

0.000

4648.503

Instance2184.23

24.210

28.976

18.168

13.958

32768.000

36413.459

0.000

0.924

0.000

12.531

0.000

4671.339

Instance2184.24

25.679

32.346

18.703

14.445

32768.000

36391.067

0.000

0.928

0.000

12.740

0.000

4620.756

Instance2184.25

25.188

23.604

18.569

14.297

32768.000

36406.654

0.000

0.940

0.000

12.666

0.000

4612.434

Instance2184.26

23.798

26.318

18.540

14.328

32768.000

36418.646

0.000

0.934

0.000

12.654

0.000

4614.618

Instance2184.27

25.273

90.585

18.335

14.143

32768.000

36400.194

0.000

0.940

0.000

12.595

0.000

4637.845

Instance2184.28

25.299

99.448

18.690

14.470

32768.000

36422.198

0.000

0.921

0.000

12.869

0.000

4670.673

Instance2184.29

26.716

69.198

18.533

14.299

32768.000

36359.630

0.000

0.938

0.000

12.745

0.000

4586.266

Instance2184.30

28.326

73.817

18.665

14.381

32768.000

36369.912

0.000

0.929

0.000

12.830

0.000

4619.667

Instance2184.31

18.460

66.262

18.635

14.405

32768.000

36350.566

0.000

0.889

0.000

12.696

0.000

4583.587

Instance2184.32

17.853

67.713

18.678

14.418

32768.000

36342.138

0.000

0.884

0.000

12.592

0.000

4687.122

Background Database Maintenance I/O Performance

This section displays the I/O that was used to perform background database maintenance only. The combination of these values plus Transactional I/O provides the total IOPS generated during the test.

MSExchange Database ==> Instances Database Maintenance IO Reads/sec Database Maintenance IO Reads Average Bytes

Instance2184.1

0.000

0.000

Instance2184.2

0.000

0.000

Instance2184.3

0.000

0.000

Instance2184.4

0.000

0.000

Instance2184.5

0.000

0.000

Instance2184.6

0.000

0.000

Instance2184.7

0.000

0.000

Instance2184.8

0.000

0.000

Instance2184.9

0.000

0.000

Instance2184.10

0.000

0.000

Instance2184.11

0.000

0.000

Instance2184.12

0.000

0.000

Instance2184.13

0.000

0.000

Instance2184.14

0.000

0.000

Instance2184.15

0.000

0.000

Instance2184.16

0.000

0.000

Instance2184.17

0.000

0.000

Instance2184.18

0.000

0.000

Instance2184.19

0.000

0.000

Instance2184.20

0.000

0.000

Instance2184.21

0.000

0.000

Instance2184.22

0.000

0.000

Instance2184.23

0.000

0.000

Instance2184.24

0.000

0.000

Instance2184.25

0.000

0.000

Instance2184.26

0.000

0.000

Instance2184.27

0.000

0.000

Instance2184.28

0.000

0.000

Instance2184.29

0.000

0.000

Instance2184.30

0.000

0.000

Instance2184.31

0.000

0.000

Instance2184.32

0.000

0.000

Instance2184.33

0.000

0.000

Log Replication I/0 Performance

This section displays the I/O overhead for log file replication.

MSExchange Database ==> Instances I/O Log Reads/sec I/O Log Reads Average Bytes

Instance2184.1

0.234

91669.994

Instance2184.2

0.235

92247.458

Instance2184.3

0.233

91387.541

Instance2184.4

0.235

92353.695

Instance2184.5

0.238

93204.062

Instance2184.6

0.235

92231.381

Instance2184.7

0.235

92043.144

Instance2184.8

0.238

93524.438

Instance2184.9

0.235

91606.706

Instance2184.10

0.235

92194.338

Instance2184.11

0.241

94855.422

Instance2184.12

0.237

92803.523

Instance2184.13

0.237

92785.573

Instance2184.14

0.237

92554.769

Instance2184.15

0.235

92683.801

Instance2184.16

0.236

92347.353

Instance2184.17

0.238

93119.155

Instance2184.18

0.236

92548.413

Instance2184.19

0.233

91693.818

Instance2184.20

0.233

91666.098

Instance2184.21

0.235

92180.721

Instance2184.22

0.235

91991.254

Instance2184.23

0.234

91936.059

Instance2184.24

0.237

93131.887

Instance2184.25

0.232

91239.525

Instance2184.26

0.234

92168.188

Instance2184.27

0.235

92639.663

Instance2184.28

0.240

94222.413

Instance2184.29

0.235

92277.949

Instance2184.30

0.239

93669.450

Instance2184.31

0.233

91238.877

Instance2184.32

0.237

92787.792

Instance2184.33

0.239

93526.220

Instance2184.34

0.231

90240.259

Total I/0 Performance

This table shows all I/O that was recorded during the test (transactional I/O plus background database maintenance I/O). The sum of I/O values from this table should agree with those observed at the storage subsystem.

MSExchange Database ==> Instances I/O Database Reads Average Latency (msec) I/O Database Writes Average Latency (msec) I/O Database Reads/sec I/O Database Writes/sec I/O Database Reads Average Bytes I/O Database Writes Average Bytes I/O Log Reads Average Latency (msec) I/O Log Writes Average Latency (msec) I/O Log Reads/sec I/O Log Writes/sec I/O Log Reads Average Bytes I/O Log Writes Average Bytes

Instance2184.1

28.788

150.276

18.363

14.168

32768.000

36402.272

6.567

1.143

0.234

12.640

91669.994

4617.448

Instance2184.2

27.288

160.559

18.716

14.442

32768.000

36380.427

6.309

1.094

0.235

12.773

92247.458

4590.402

Instance2184.3

25.611

131.880

18.430

14.264

32768.000

36405.811

6.347

0.926

0.233

12.594

91387.541

4618.781

Instance2184.4

25.658

149.153

18.631

14.372

32768.000

36413.780

6.275

0.932

0.235

12.810

92353.695

4567.783

Instance2184.5

26.547

82.584

18.586

14.374

32768.000

36406.328

6.445

0.900

0.238

12.790

93204.062

4632.490

Instance2184.6

28.128

109.103

18.341

14.134

32768.000

36388.266

6.598

0.883

0.235

12.615

92231.381

4601.948

Instance2184.7

28.523

110.628

18.478

14.262

32768.000

36373.073

6.263

0.896

0.235

12.658

92043.144

4600.100

Instance2184.8

26.931

129.272

18.668

14.431

32768.000

36377.041

6.721

0.906

0.238

12.811

93524.438

4611.075

Instance2184.9

23.680

52.825

18.596

14.372

32768.000

36407.602

6.470

0.882

0.235

12.672

91606.706

4616.554

Instance2184.10

23.613

68.903

18.795

14.496

32768.000

36344.407

6.207

0.871

0.235

12.786

92194.338

4565.373

Instance2184.11

25.694

59.611

18.756

14.500

32768.000

36392.692

7.073

0.924

0.241

13.010

94855.422

4621.956

Instance2184.12

27.017

76.981

18.492

14.299

32768.000

36393.472

6.552

0.927

0.237

12.792

92803.523

4602.004

Instance2184.13

28.633

77.562

18.527

14.344

32768.000

36430.085

6.353

0.903

0.237

12.870

92785.573

4593.545

Instance2184.14

27.203

97.136

18.504

14.240

32768.000

36376.929

6.349

0.886

0.237

12.763

92554.769

4620.722

Instance2184.15

22.920

24.233

18.660

14.452

32768.000

36323.579

6.697

0.917

0.235

12.676

92683.801

4631.163

Instance2184.16

22.961

29.348

18.589

14.335

32768.000

36368.822

6.289

0.918

0.236

12.660

92347.353

4650.241

Instance2184.17

24.811

24.426

18.598

14.346

32768.000

36432.567

6.746

0.973

0.238

12.800

93119.155

4629.810

Instance2184.18

26.056

28.449

18.524

14.320

32768.000

36361.993

6.965

0.958

0.236

12.745

92548.413

4608.159

Instance2184.19

24.027

14.479

18.655

14.345

32768.000

36363.833

6.382

0.943

0.233

12.678

91693.818

4593.663

Instance2184.20

22.555

16.074

18.575

14.293

32768.000

36309.241

6.116

0.951

0.233

12.599

91666.098

4620.330

Instance2184.21

25.036

95.640

18.510

14.280

32768.000

36405.722

6.509

0.958

0.235

12.727

92180.721

4595.717

Instance2184.22

25.202

110.976

18.306

14.129

32768.000

36435.257

6.298

0.953

0.235

12.587

91991.254

4648.503

Instance2184.23

24.210

28.976

18.168

13.958

32768.000

36413.459

6.608

0.924

0.234

12.531

91936.059

4671.339

Instance2184.24

25.679

32.346

18.703

14.445

32768.000

36391.067

6.852

0.928

0.237

12.740

93131.887

4620.756

Instance2184.25

25.188

23.604

18.569

14.297

32768.000

36406.654

6.299

0.940

0.232

12.666

91239.525

4612.434

Instance2184.26

23.798

26.318

18.540

14.328

32768.000

36418.646

6.277

0.934

0.234

12.654

92168.188

4614.618

Instance2184.27

25.273

90.585

18.335

14.143

32768.000

36400.194

7.075

0.940

0.235

12.595

92639.663

4637.845

Instance2184.28

25.299

99.448

18.690

14.470

32768.000

36422.198

6.822

0.921

0.240

12.869

94222.413

4670.673

Instance2184.29

26.716

69.198

18.533

14.299

32768.000

36359.630

6.397

0.938

0.235

12.745

92277.949

4586.266

Instance2184.30

28.326

73.817

18.665

14.381

32768.000

36369.912

6.305

0.929

0.239

12.830

93669.450

4619.667

Instance2184.31

18.460

66.262

18.635

14.405

32768.000

36350.566

3.615

0.889

0.233

12.696

91238.877

4583.587

Instance2184.32

17.853

67.713

18.678

14.418

32768.000

36342.138

3.552

0.884

0.237

12.592

92787.792

4687.122

Instance2184.33

15.467

14.899

18.747

14.447

32768.000

36431.857

3.788

0.897

0.239

12.830

93526.220

4648.770

Instance2184.34

15.938

15.583

18.323

14.094

32768.000

36370.619

3.715

0.894

0.231

12.447

90240.259

4640.590

The following chart shows the observed IOPS from the Windows test host during the Jetstress test. The Host Observed Total IOPS counter includes all system IOPS as well as the test IOPS; however, there should be a strong correlation between the two metrics.

IOPS observed during Jetstress test

Jetstress Hostobserved Total IOPS

In this example, the storage should have been designed to meet a target of 60 IOPS. The discrepancy between design target and total achieved IOPS is caused by the sequential background database maintenance IOPS and log IOPS. If your storage team believes that background database maintenance is causing a test to fail, perform a test with background database maintenance disabled and compare the results. Background database maintenance doesn't usually add any significant overhead to the test latency. An overhead of 0.05 percent is typical.

Host System Performance

This section of the report shows the observed system performance during the test. This section is most often used for troubleshooting. The most important thing to note from this section is that the CPU load from Jetstress is usually minimal. Jetstress has been optimized to evaluate the storage subsystem and not the host performance itself.

Counter Average Minimum Maximum

% Processor Time

9.754

6.583

30.487

Available MBytes

27551.760

27425.000

28431.000

Free System Page Table Entries

33555642.327

33555633.000

33555644.000

Transition Pages RePurposed/sec

0.000

0.000

0.000

Pool Nonpaged Bytes

55599126.899

49975296.000

57090048.000

Pool Paged Bytes

164112909.238

152424448.000

189501440.000

Database Page Fault Stalls/sec

0.000

0.000

0.000

Test Log

This section of the report is a log of the Jetstress test. It's most often used for troubleshooting, or to record how long a test took to complete.

7/15/2010 11:36:35 PM -- Jetstress testing begins ...
7/15/2010 11:36:35 PM -- Prepare testing begins ...
7/15/2010 11:37:10 PM -- Attaching databases ...
7/15/2010 11:37:10 PM -- Prepare testing ends.
7/15/2010 11:37:10 PM -- Dispatching transactions begins ...
7/15/2010 11:37:10 PM -- Database cache settings: (minimum: 1.1 GB, maximum: 8.5 GB)
7/15/2010 11:37:10 PM -- Database flush thresholds: (start: 87.0 MB, stop: 174.1 MB)
7/15/2010 11:37:48 PM -- Database read latency thresholds: (average: 20 msec/read, maximum: 100 msec/read).
7/15/2010 11:37:48 PM -- Log write latency thresholds: (average: 10 msec/write, maximum: 100 msec/write).
7/15/2010 11:38:29 PM -- Operation mix: Sessions 3, Inserts 40%, Deletes 20%, Replaces 5%, Reads 35%, Lazy Commits 70%.
7/15/2010 11:38:29 PM -- Performance logging begins (interval: 15000 ms).
7/15/2010 11:38:29 PM -- Attaining prerequisites:
7/15/2010 11:48:26 PM -- \MSExchange Database(JetstressWin)\Database Cache Size, Last: 8220439000.0 (lower bound: 8214125000.0, upper bound: none)
7/16/2010 5:48:27 AM -- Performance logging ends.
7/16/2010 5:48:27 AM -- JetInterop batch transaction stats: 25475, 25346, 25350, 25567, 25326, 25176, 25264, 25391, 25446, 25389, 25805, 25476, 25472, 25383, 25461, 25410, 25625, 25630, 25402, 25268, 25370, 25313, 25031, 25523, 25245, 25681, 25444, 25662, 25391, 25707, 25421, 25325, 25468 and 25189.
7/16/2010 5:48:28 AM -- Dispatching transactions ends.
7/16/2010 5:48:28 AM -- Shutting down databases ...
7/16/2010 5:50:11 AM -- Instance2184.1 (complete), Instance2184.2 (complete), Instance2184.3 (complete), Instance2184.4 (complete), Instance2184.5 (complete), Instance2184.6 (complete), Instance2184.7 (complete), Instance2184.8 (complete), Instance2184.9 (complete), Instance2184.10 (complete), Instance2184.11 (complete), Instance2184.12 (complete), Instance2184.13 (complete), Instance2184.14 (complete), Instance2184.15 (complete), Instance2184.16 (complete), Instance2184.17 (complete), Instance2184.18 (complete), Instance2184.19 (complete), Instance2184.20 (complete), Instance2184.21 (complete), Instance2184.22 (complete), Instance2184.23 (complete), Instance2184.24 (complete), Instance2184.25 (complete), Instance2184.26 (complete), Instance2184.27 (complete), Instance2184.28 (complete), Instance2184.29 (complete), Instance2184.30 (complete), Instance2184.31 (complete), Instance2184.32 (complete), Instance2184.33 (complete) and Instance2184.34 (complete)
7/16/2010 5:50:11 AM -- C:\Program Files\Exchange Jetstress\ Performance_2010_7_15_23_37_48.blg has 1470 samples.
7/16/2010 5:50:11 AM -- Creating test report ...
7/16/2010 5:51:05 AM -- Instance2184.1 has 28.8 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.1 has 1.1 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.1 has 1.1 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.2 has 27.3 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.2 has 1.1 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.2 has 1.1 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.3 has 25.6 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.3 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.3 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.4 has 25.7 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.4 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.4 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.5 has 26.5 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.5 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.5 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.6 has 28.1 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.6 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.6 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.7 has 28.5 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.7 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.7 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.8 has 26.9 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.8 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.8 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.9 has 23.7 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.9 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.9 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.10 has 23.6 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.10 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.10 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.11 has 25.7 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.11 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.11 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.12 has 27.0 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.12 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.12 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.13 has 28.6 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.13 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.13 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.14 has 27.2 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.14 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.14 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.15 has 22.9 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.15 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.15 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.16 has 23.0 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.16 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.16 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.17 has 24.8 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.17 has 1.0 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.17 has 1.0 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.18 has 26.1 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.18 has 1.0 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.18 has 1.0 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.19 has 24.0 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.19 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.19 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.20 has 22.6 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.20 has 1.0 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.20 has 1.0 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.21 has 25.0 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.21 has 1.0 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.21 has 1.0 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.22 has 25.2 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.22 has 1.0 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.22 has 1.0 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.23 has 24.2 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.23 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.23 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.24 has 25.7 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.24 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.24 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.25 has 25.2 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.25 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.25 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.26 has 23.8 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.26 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.26 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.27 has 25.3 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.27 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.27 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.28 has 25.3 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.28 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.28 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.29 has 26.7 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.29 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.29 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.30 has 28.3 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.30 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.30 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.31 has 18.5 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.31 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.31 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.32 has 17.9 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.32 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.32 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.33 has 15.5 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.33 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.33 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.34 has 15.9 for I/O Database Reads Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.34 has 0.9 for I/O Log Writes Average Latency.
7/16/2010 5:51:05 AM -- Instance2184.34 has 0.9 for I/O Log Reads Average Latency.
7/16/2010 5:51:05 AM -- Test has 0 Maximum Database Page Fault Stalls/sec.
7/16/2010 5:51:05 AM -- Test has 0 Database Page Fault Stalls/sec samples higher than 0.
7/16/2010 5:51:05 AM -- C:\Program Files\Exchange Jetstress\ Performance_2010_7_15_23_37_48.xml has 1430 samples queried.