#!/bin/bash
for i in {0..20}
do
for j in {0..6}
do
dd if=/dev/zero of=/dev/null bs=$[2**$i] count=$[10**$j]
done
done
Dell Precision T3600 워크스테이션for i in {0..20}
do
for j in {0..6}
do
dd if=/dev/zero of=/dev/null bs=$[2**$i] count=$[10**$j]
done
done
인텔® Xeon® 쿼드 코어 (E5-1620)
16GB (4x4GB) 1600MHz DDR3 ECC RDIMM
Ubuntu 12.04 VM(4GB, vCPU 1)
| count bs |
1 | 10 | 100 | 1,000 | 10,000 | 100,000 | 1,000,000 |
1
Byte
|
43.4 kB/초
|
372 kB/초
|
1.2 MB/초
|
1.5 MB/초
|
1.4 MB/초
|
3.7 MB/초
|
3.8 MB/초
|
2
Byte
|
247 kB/초
|
2.0 MB/초
|
6.2 MB/초
|
6.4 MB/초
|
8.3 MB/초
|
8.3 MB/초
|
8.4 MB/초
|
4
Byte
|
510 kB/초
|
4.0 MB/초
|
12.7 MB/초
|
16.4 MB/초
|
16.9 MB/초
|
16.7 MB/초
|
19.6 MB/초
|
8
Byte
|
1.2 MB/초
|
9.7 MB/초
|
29.6 MB/초
|
38.2 MB/초
|
40.2 MB/초
|
38.1 MB/초
|
39.8 MB/초
|
16
Byte
|
2.4 MB/초
|
18.8 MB/초
|
57.0 MB/초
|
76.6 MB/초
|
72.7 MB/초
|
78.5 MB/초
|
78.3 MB/초
|
32
Byte
|
4.6 MB/초
|
38.4 MB/초
|
109 MB/초
|
136 MB/초
|
159 MB/초
|
159 MB/초
|
145 MB/초
|
64
Byte
|
10.0 MB/초
|
76.4 MB/초
|
230 MB/초
|
257 MB/초
|
315 MB/초
|
304 MB/초
|
310 MB/초
|
128
Byte
|
19.2 MB/초
|
147 MB/초
|
473 MB/초
|
593 MB/초
|
602 MB/초
|
611 MB/초
|
613 MB/초
|
256
Byte
|
37.6 MB/초
|
273 MB/초
|
882 MB/초
|
1.2 GB/초
|
1.2 GB/초
|
1.1 GB/초
|
1.0 GB/초
|
512
Byte
|
73.6 MB/초
|
581 MB/초
|
1.8 GB/초
|
2.2 GB/초
|
2.2 GB/초
|
2.2 GB/초
|
2.2 GB/초
|
1
kB
|
150 MB/초
|
1.2 GB/초
|
3.3 GB/초
|
4.1 GB/초
|
4.0 GB/초
|
4.1 GB/초
|
4.1 GB/초
|
2
kB
|
299 MB/초
|
2.2 GB/초
|
5.4 GB/초
|
7.2 GB/초
|
7.2 GB/초
|
7.2 GB/초
|
7.2 GB/초
|
4
kB
|
612 MB/초
|
4.1 GB/초
|
9.9 GB/초
|
11.5 GB/초
|
11.6 GB/초
|
11.4 GB/초
|
11.6 GB/초
|
8
kB
|
1.0 GB/초
|
6.5 GB/초
|
14.2 GB/초
|
16.1 GB/초
|
16.1 GB/초
|
16.1 GB/초
|
16.0 GB/초
|
16
kB
|
1.6 GB/초
|
9.1 GB/초
|
18.1 GB/초
|
19.8 GB/초
|
19.6 GB/초
|
19.5 GB/초
|
18.8 GB/초
|
32
kB
|
2.3 GB/초
|
11.1 GB/초
|
18.2 GB/초
|
18.5 GB/초
|
19.3 GB/초
|
19.3 GB/초
|
19.5 GB/초
|
64
kB
|
3.0 GB/초
|
13.7 GB/초
|
21.2 GB/초
|
21.3 GB/초
|
22.5 GB/초
|
21.8 GB/초
|
22.2 GB/초
|
128
kB
|
3.1 GB/초
|
14.6 GB/초
|
22.2 GB/초
|
23.0 GB/초
|
23.1 GB/초
|
23.2 GB/초
|
23.1 GB/초
|
256
kB
|
3.5 GB/초
|
15.2 GB/초
|
21.3 GB/초
|
21.3 GB/초
|
22.1 GB/초
|
22.1 GB/초
|
21.8 GB/초
|
512
kB
|
3.7 GB/초
|
12.6 GB/초
|
20.1 GB/초
|
20.7 GB/초
|
20.6 GB/초
|
20.4 GB/초
|
20.7 GB/초
|
1
MB
|
3.8 GB/초
|
15.3 GB/초
|
20.1 GB/초
|
20.9 GB/초
|
20.8 GB/초
|
20.8 GB/초
|
20.7 GB/초
|
