What's your server disk performance?

[Puntocom]

Tilaa VPS / Traditional HDD

$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 3.40639 s, 315 MB/s

Tilaa VPS / SSD

$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 2.0998 s, 511 MB/s

 

[JulianD]

Rackspace VPS / SSD

16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 3.08006 s, 349 MB/s

Linode VPS / SSD

16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 1.35109 s, 795 MB/s

 

[Xon]

It's random read/write of 4k blocks which are the performance benchmark to use for SSDs.

Raw throughput isn't actually that useful for the majority of the time.