하드웨어/RAID2019.02.13 17:00

10K SAS RAID5 구성한 녀석(PERC H730P mini 였나? + 1G cache)

의외로 성능이 잘 나온다고 해야하려나? 아무튼 몇번에 대해서는 순간 1GB/s 나오는거 보고 깜놀


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=1G count=1 oflag=direct

1073741824 bytes (1.1 GB) copied, 0.968236 s, 1.1 GB/s


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=1M count=1024 oflag=direct

1073741824 bytes (1.1 GB) copied, 0.877165 s, 1.2 GB/s

1073741824 bytes (1.1 GB) copied, 1.67205 s, 642 MB/s

1073741824 bytes (1.1 GB) copied, 1.64823 s, 651 MB/s

1073741824 bytes (1.1 GB) copied, 1.70338 s, 630 MB/s

1073741824 bytes (1.1 GB) copied, 1.67719 s, 640 MB/s


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=1G count=1 oflag=direct

1073741824 bytes (1.1 GB) copied, 0.981585 s, 1.1 GB/s

1073741824 bytes (1.1 GB) copied, 1.86161 s, 577 MB/s

1073741824 bytes (1.1 GB) copied, 1.83748 s, 584 MB/s


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=512 count=1024 oflag=direct

524288 bytes (524 kB) copied, 0.0448593 s, 11.7 MB/s

524288 bytes (524 kB) copied, 0.0444185 s, 11.8 MB/s

524288 bytes (524 kB) copied, 0.0448892 s, 11.7 MB/s


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=512 count=102400 oflag=direct

5242880 bytes (5.2 MB) copied, 0.359296 s, 14.6 MB/s


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=4096 count=102400 oflag=direct

52428800 bytes (52 MB) copied, 2.87847 s, 18.2 MB/s


[root@localhost home]# dd if=/dev/zero of=/home/testfile bs=4096 count=102400 oflag=direct
419430400 bytes (419 MB) copied, 3.62074 s, 116 MB/s
419430400 bytes (419 MB) copied, 3.60996 s, 116 MB/s


[링크 : https://www.thomas-krenn.com/en/wiki/Linux_I/O_Performance_Tests_using_dd]

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