Running `bonnie++ -n 256 -u bonnie -d /home/bonnie/` on Dell R210, 2 GB DDR3, 250 GB SATA II - CentOS 5.4 x86_32, kernel 2.6.18-164.11.1.el5. First table is for AHCI mode, second is for ATA mode:

---

Version 1.96

Sequential Output

Sequential Input

Random Seeks

Sequential Create

Random Create

Size

Per Char

Block

Rewrite

Per Char

Block

Num Files

Create

Read

Delete

Create

Read

Delete

K/sec

% CPU

K/sec

% CPU

K/sec

% CPU

K/sec

% CPU

K/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

tech-2.sta

4G

450

98

66962

20

33517

7

886

99

71131

5

329.1

2

256

32843

76

198077

98

17682

29

36596

83

272903

99

5695

10

Latency

42592us

1922ms

1560ms

32495us

102ms

413ms

Latency

423ms

1553us

844ms

359ms

134us

2270ms

---

Version 1.96

Sequential Output

Sequential Input

Random Seeks

Sequential Create

Random Create

Size

Per Char

Block

Rewrite

Per Char

Block

Num Files

Create

Read

Delete

Create

Read

Delete

K/sec

% CPU

K/sec

% CPU

K/sec

% CPU

K/sec

% CPU

K/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

/sec

% CPU

tech-2.sta

4G

421

99

73025

21

37941

7

1131

98

98367

5

222.1

7

256

32743

75

202509

100

18744

31

36407

82

273614

99

5309

9

Latency

36808us

2124ms

225ms

37676us

35648us

539ms

Latency

456ms

1655us

768ms

369ms

136us

2173ms