예) office 박스 sata2
kilim@kilim-office:~$ sudo hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 9206 MB in 2.00 seconds = 4605.83 MB/sec
Timing buffered disk reads: 418 MB in 3.01 seconds = 138.81 MB/sec
예) office 박스 scsi
kilim@kilim-office:~$ sudo hdparm -tT /dev/sdb
/dev/sdb:
Timing cached reads: 9582 MB in 2.00 seconds = 4793.16 MB/sec
Timing buffered disk reads: 384 MB in 3.00 seconds = 127.90 MB/sec
예) test 박스 sata2
[root@ktest ~]# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3440 MB in 2.00 seconds = 1720.15 MB/sec
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.88 MB/sec
* dd if=/dev/zero of=test_file bs=1M count=1000 [write 테스트에 유용]
예) office 박스 sata2
kilim@kilim-office:~$ sudo dd if=/dev/zero of=bing bs=1M count=1000
1000+0 레코드 들어옴
1000+0 레코드 나감
1048576000 바이트 (1.0 GB) 복사됨, 4.28471 초, 245 MB/초
예) office 박스 scsi
kilim@kilim-office:~/DATA$ sudo dd if=/dev/zero of=bing bs=1M count=1000
1000+0 레코드 들어옴
1000+0 레코드 나감
1048576000 바이트 (1.0 GB) 복사됨, 3.62881 초, 289 MB/초
예) test 박스 sata2
[root@ktest ~]# dd if=/dev/zero of=bing bs=1M count=1000
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 15.7895 seconds, 66.4 MB/s
