1、dd部分
[[email protected] ~]# free -g
total used free shared buffers cached
Mem: 7 0 6 0 0 0
-/+ buffers/cache: 0 7
Swap: 3 0 3
[[email protected] ~]# ls /dev/sd
sda sda1 sda2 sda5 sda6 sda7 sda8 sdb sdb1
[[email protected] ~]# dd if=/dev/sda8 of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 13.4692 seconds, 79.7 MB/s
[[email protected] ~]# dd if=/dev/sdb1 of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 5.31813 seconds, 202 MB/s
[[email protected] ~]#
[[email protected] ~]# ntfs-3g /dev/sdb1 /mnt/
[[email protected] ~]# dd if=/dev/zero of=/public/testio bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 4.71554 seconds, 228 MB/s
[[email protected] ~]# dd if=/dev/zero of=/mnt/testio bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 10.6446 seconds, 101 MB/s
[[email protected] ~]# dd if=/public/testio of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 0.299819 seconds, 3.6 GB/s
[[email protected] ~]# dd if=/mnt/testio of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 0.312793 seconds, 3.4 GB/s
[[email protected] ~]# dd if=/dev/sda1 of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 8.29744 seconds, 129 MB/s
[[email protected] ~]# dd if=/dev/sda1 of=/dev/null bs=512 count=1024
1024+0 records in
1024+0 records out
524288 bytes (524 kB) copied, 0.002299 seconds, 228 MB/s
[[email protected] ~]# dd if=/dev/sda1 of=/dev/null bs=32 count=1024
1024+0 records in
1024+0 records out
32768 bytes (33 kB) copied, 0.002133 seconds, 15.4 MB/s
[[email protected] ~]# dd if=/dev/sdb1 of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 5.18208 seconds, 207 MB/s
[[email protected] ~]# dd if=/dev/sdb1 of=/dev/null bs=512 count=1024
1024+0 records in
1024+0 records out
524288 bytes (524 kB) copied, 0.002285 seconds, 229 MB/s
[[email protected] ~]# dd if=/dev/sdb1 of=/dev/null bs=32 count=1024
1024+0 records in
1024+0 records out
32768 bytes (33 kB) copied, 0.002199 seconds, 14.9 MB/s
[[email protected] ~]#
2、软件测试部分