1.3.1. RTI Routing Service

The following tests have been performed by executing the RTI Perftest C++98 benchmark application between two nodes and RTI Routing Service in a third node, all of them connected to a switch via Ethernet. The communication has been restricted to a single interface, and the transport has been set to UDPv4 for the three applications.

In this test, communication between the RTI Perftest Publisher and Subscriber is not direct, all traffic is routed with Routing Service. The Publisher application sends the samples, which are received and routed using Routing Service to the Subscriber application. If the sample needs to be returned to the Publisher application, the Subscriber sends it back, again through Routing Service. The latency measured is half Round Trip Time (RTT).

Find information about the hardware, network, and command-line parameters after each of the tests.

1.3.1.1. Unkeyed, UDPv4 10Gbps Network

The graph below shows the one-way latency without load between a Publisher, a Routing Service, and a Subscriber running in three Linux nodes in a 10Gbps network. The numbers are for best-effort as well as strict reliable reliability scenarios.

Note

We use the median (50th percentile) instead of the average in order to get a more stable measurement that does not account for spurious outliers. We also calculate the average value and other percentile values, which can be seen in the Detailed Statistics section below.

Detailed Statistics

The following tables contain the raw numbers presented by RTI Perftest. These numbers are the exact output with no further processing.

  • Best Effort

Sample Size (Bytes)

Avg (μs)

Std (μs)

Min (μs)

Max (μs)

50% (μs)

90% (μs)

99% (μs)

99.99% (μs)

99.9999% (μs)

32

44

7.3

36

72

40

57

63

68

72

64

45

6.9

36

96

42

58

63

69

96

256

46

6.8

37

108

43

59

63

70

108

1024

49

5.6

40

140

46

58

63

124

140

63000

251

21.5

214

299

249

282

297

299

299

  • Reliable

Sample Size (Bytes)

Avg (μs)

Std (μs)

Min (μs)

Max (μs)

50% (μs)

90% (μs)

99% (μs)

99.99% (μs)

99.9999% (μs)

32

44

36.7

38

10007

41

55

63

125

10007

64

44

17.6

38

8658

41

56

65

124

8658

256

46

7.3

39

130

43

59

67

104

130

1024

51

21.4

42

8991

46

62

79

102

8991

63000

377

4.3

233

310

260

380

383

390

410

Test Hardware

The following hardware was used to perform these tests:

Linux Nodes

Dell R340 Servers (13 Units)
Processor: Intel Xeon E-2278G (3.4-5GHz, 8c/16t, 16MB cache, 2 memory channels @2666MHz)
RAM: 4x 16GB 2666MHz DIMM (64GB RAM)
HD: 480GB SATA SSD
NIC 1: Intel 710 dual port 10Gbps SFP
OS: Ubuntu 20.04 -- gcc 9.3.0

Switch

Dell 2048 -- 10Gbps switch

1.3.1.2. Keyed, UDPv4 10Gbps Network

The graph below shows the one-way latency without load between a Publisher, a Routing Service, and a Subscriber running in three Linux nodes in a 10Gbps network. The numbers are for best-effort as well as strict reliable reliability scenarios.

Note

We use the median (50th percentile) instead of the average in order to get a more stable measurement that does not account for spurious outliers. We also calculate the average value and other percentile values, which can be seen in the Detailed Statistics section below.

Detailed Statistics

The following tables contain the raw numbers presented by RTI Perftest. These numbers are the exact output with no further processing.

  • Best Effort

Sample Size (Bytes)

Avg (μs)

Std (μs)

Min (μs)

Max (μs)

50% (μs)

90% (μs)

99% (μs)

99.99% (μs)

99.9999% (μs)

32

47

8.3

39

156

42

59

63

125

156

64

46

296.0

36

100079

42

55

62

90

100079

256

48

8.0

39

132

45

60

63

124

132

1024

51

9.0

43

156

48

60

95

125

156

63000

259

21.2

213

214

224

282

284

300

314

  • Reliable

Sample Size (Bytes)

Avg (μs)

Std (μs)

Min (μs)

Max (μs)

50% (μs)

90% (μs)

99% (μs)

99.99% (μs)

99.9999% (μs)

32

47

7.2

41

2715

40

57

63

102

2715

64

47

17.9

41

9714

40

57

65

106

9714

256

48

24.3

42

9561

41

59

70

106

9561

1024

53

14.8

44

7556

47

62

87

110

7556

63000

353

13.6

231

394

348

376

384

391

394

Test Hardware

The following hardware was used to perform these tests:

Linux Nodes

Dell R340 Servers (13 Units)
Processor: Intel Xeon E-2278G (3.4-5GHz, 8c/16t, 16MB cache, 2 memory channels @2666MHz)
RAM: 4x 16GB 2666MHz DIMM (64GB RAM)
HD: 480GB SATA SSD
NIC 1: Intel 710 dual port 10Gbps SFP
OS: Ubuntu 20.04 -- gcc 9.3.0

Switch

Dell 2048 -- 10Gbps switch