[boulos]

Which "disk"?

We've got Persistent Disks aka PD (logically similar to EBS / network storage) that come in both a "hard drive" variety and an "ssd" variety, as well as local SSD.

I assume you're talking about one of the PD products, most likely PD-SSD and comparing to one of the EBS offerings (either the new one or a piops one)?

If so, unlike traditional EBS, PD scales throughput according to disk size [1]. You get 30 IOPS/GB up to 15k or so. As far as latency goes, what instance were you testing on? Your VM's I/O competes for cycles with your vCPU (this is true of all KVM-based virtualization), so if you spike up your CPU you can easily "starve" your I/O threads or vice versa.

As to your DNS question, I'll have to look into that. But where are you trying to communicate? (I mean clearly you found me, but I mean where else)

[nullrouted]

Sure I use SSD Persistent disk and the latency is pretty horrible with the throughput being worse, it is much slower than a similar AWS EBS volume.

--- /dev/sda1 (device 20.0 GiB) ioping statistics --- 13 requests completed in 12.5 s, 161 iops, 647.9 KiB/s min/avg/max/mdev = 213 us / 6.2 ms / 18.2 ms / 6.0 ms

This is pretty bad, everything on AWS is under a millisecond.

I submit feedback through the feedback links in the panel and on the product forums. Since you folks don't offer any other way of communicating.