|
楼主 |
发表于 2013-2-23 15:47:53
|
显示全部楼层
yqf.me 发表于 2013-2-23 20:35
那就好,有时候还真是运气差,不过KT还蛮够意思的,我看了回复,要给你换硬盘。 ...
换了新硬盘 晒结果。。。
[root@localhost ~]# dd if=/dev/zero of=test bs=64k count=16k
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 8.40026 s, 128 MB/s
[root@localhost ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fsync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 8.80136 s, 122 MB/s
[root@localhost ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 132.902 s, 2.0 MB/s
[root@localhost ~]# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 938 MB in 2.00 seconds = 468.86 MB/sec
Timing buffered disk reads: 348 MB in 3.00 seconds = 115.98 MB/sec |
|