DigitalOcean $5/Month SSD VPS 磁盘速度测试
DigitalOcean $5/Month SSD VPS 磁盘速度测试
By lincanbin
at 2014-12-08
0人收藏 • 2157人看过
dd bs=1K count=1024000 if=/dev/zero of=test conv=fdatasync
测速三次取平均值：
[root@vps ~]# dd bs=1K count=1024000 if=/dev/zero of=test conv=fdatasync 1024000+0 records in 1024000+0 records out 1048576000 bytes (1.0 GB) copied, 4.30576 s, 244 MB/s [root@vps ~]# dd bs=1K count=1024000 if=/dev/zero of=test conv=fdatasync 1024000+0 records in 1024000+0 records out 1048576000 bytes (1.0 GB) copied, 3.82925 s, 274 MB/s [root@vps ~]# dd bs=1K count=1024000 if=/dev/zero of=test conv=fdatasync 1024000+0 records in 1024000+0 records out 1048576000 bytes (1.0 GB) copied, 3.94478 s, 266 MB/s
大概261MB/s，有些对不起SSD的称号……
应该是超售严重了吧
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1 个回复 | 最后更新于 2014-12-08
lincanbin
2014-12-08
#1
[root@vps ~]# dd bs=1M count=4K if=/dev/zero of=test conv=fdatasync 4096+0 records in 4096+0 records out 4294967296 bytes (4.3 GB) copied, 7.57049 s, 567 MB/s [root@vps ~]# dd bs=1M count=4K if=/dev/zero of=test conv=fdatasync 4096+0 records in 4096+0 records out 4294967296 bytes (4.3 GB) copied, 7.13638 s, 602 MB/s [root@vps ~]# dd bs=1M count=4K if=/dev/zero of=test conv=fdatasync 4096+0 records in 4096+0 records out 4294967296 bytes (4.3 GB) copied, 6.85751 s, 626 MB/s [root@vps ~]#
调整了一下参数，改为
dd bs=1M count=4K if=/dev/zero of=test conv=fdatasync
成绩马上上去了，均值598MB/s！
