SSD benchmarking

Jovanfever

`time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync"; rm ddfile
250000+0 records in
250000+0 records out
2048000000 bytes (2.0 GB) copied, 6.90635 s, 297 MB/s

sudo hdparm -t /dev/xvda1
/dev/xvda1:
Timing buffered disk reads: 1936 MB in 3.00 seconds = 644.88 MB/sec

sudo hdparm -T /dev/xvda1
/dev/xvda1:
Timing cached reads: 12524 MB in 1.98 seconds = 6309.47 MB/sec`

What is your opinion about this SSD VPS ? Is this of good, average or bad? First time setting up a SSD VPS.

RIYAD

Its seems pretty good IO

are you using any Raid ?

Jovanfever

Its a SSD VPS from Prometeus, I am not sure whether they have RAID for SSD VPSs too..

ItsChrisG

good speed

Jovanfever

Thanks @ItsChrisG

RIYAD

We have SSD VPS (4xCPU) (Raid 10) in Netherlands location with

With below out put :

[root@host4fun ~]# 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, 1.16633 s, 921 MB/s

[root@host4fun ~]# 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, 1.90758 s, 563 MB/s

We also have SSD VPS (4xCPU) (Raid 0) in Germany Location :

[root@riyad ~]# 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, 3.97486 s, 270 MB/s

[root@riyad ~]# 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, 3.66742 s, 293 MB/s

OnSebastian

Here some tests done on one of our VPS. The VPS is running on a full utilized host system (so this is the "real" performance, not from a special benchmarking system):

//edit: additional information :-)
The host system is running an Intel Xeon E5-1620v3 CPU with DDR4 RAM and ZFS RAID10 (4x SSD Disks). The "test" VPS is one of our VPS Tiny with 512MB RAM and 1 CPU Core.

root@vps290-ukm:~# 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, 0.835736 s, 1.3 GB/s
root@vps290-ukm:~# 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, 0.927066 s, 1.2 GB/s

root@vps290-ukm:~# time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync"
250000+0 records in
250000+0 records out
2048000000 bytes (2.0 GB) copied, 1.7667 s, 1.2 GB/s

real    0m1.850s
user    0m0.024s
sys     0m1.220s
root@vps290-ukm:~# time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync"
250000+0 records in
250000+0 records out
2048000000 bytes (2.0 GB) copied, 1.57872 s, 1.3 GB/s

real    0m1.682s
user    0m0.020s
sys     0m1.252s

root@vps290-ukm:~# hdparm -t /dev/vda1 /dev/vda1

/dev/vda1:
 Timing buffered disk reads: 1658 MB in  3.00 seconds = 552.07 MB/sec

/dev/vda1:
 Timing buffered disk reads: 1658 MB in  3.00 seconds = 552.10 MB/sec
root@vps290-ukm:~# hdparm -T /dev/vda1 /dev/vda1

/dev/vda1:
 Timing cached reads:   22728 MB in  2.00 seconds = 11372.76 MB/sec

/dev/vda1:
 Timing cached reads:   22372 MB in  2.00 seconds = 11194.75 MB/sec

Jovanfever

@OnVirt

Good speed, But the pricing in your web is not much convincing enough to move from my xenpower.com 100GB SSD vps from @prometeus I have more than 40GB of data.

cociu

@HostioSolutions nice nickname !