Netperf3 TCP Stream Test – 1 Connection/Adapter                                                                      

                                                                                    Network throughput in Mbits and Throughput scaled to CPU

                                                                                       Comparisons between Linux Kernels 2.4.0/2.4.4/2.4.7                                                            

 

 

500Mhz PIII 2.5GB RAM 2MB L2 – 4 way Server

700Mhz PIII  4.0GB RAM 1MB L2 – 8 way Server

100 Mb Intel eepro 4 adapters/full duplex

TCP-no delay ON

 

 

MSG Size

Kernel240

Server CPU Utilization

 

     (bytes)

 4 adapters

User

System

Idle

thruput/CPU

4

45.04

27

73

0

45.04

16

152

20

80

0

152

512

361.12

4

89

7

388.3

1024

367.52

3

87

10

408

2048

367.6

2

69

29

517

4096

375.12

3

59

38

605

8192

375.12

2

56

42

646

32768

376.16

2

52

46

696

MSG size

Kernel244         

Server CPU Utilization

 

(bytes)

4adapters

User

System

Idle

thruput/cpu

4

43.77

26

74

0

43.77

16

117.45

21

79

0

117.45

512

361.84

3

86

10

402.04

1024

367.55

3

88

9

403.9

2048

367.66

2

71

28

510.63

4096

375.12

3

64

33

559.88

8192

375.12

3

58

39

614.95

32768

376.1

2

54

44

671.6

MSG  size 

Kernel247

Server CPU Utilization

 

(bytes)

4 adapters

User

System

Idle

thruput/CPU

4

42.99

28

72

0

42.99

16

150.64

23

77

0

150.64

512

357.47

2

91

7

384

1024

367.52

2

89

9

403.86

2048

367.52

2

68

30

525.02

4096

375.12

1

61

38

605.03

8192

375.12

2

54

44

669.85

32768

376.16

2

49

49

737.56