Page 1 of 1

SLOW DISK i/0

Posted: 17. Sep 2020, 06:18
by DaveSny
I'm running server 2016 STD as a VM on a Windows 10 host.
The host has a RAIDED nvme drive Array. I benchmarked them with PassMark and they rated in the 99% percentile, and as a metric the seq. read score was 3386. When I ran PassMark on the server VM in rated in 50% percentile and read score 550. In device manager I see the Base System Device is missing? I enabled solid-state in the SATA drive and benched marked it again and it was slower yet.

can anyone help?

Re: SLOW DISK i/0

Posted: 17. Sep 2020, 08:43
by mpack
DaveSny wrote:I'm running server 2016 STD as a VM on a Windows 10 host
Then why post in the "Other Hosts" forum? Topic moved to "Windows Hosts".

Don't run automated benchmarks inside a VM.: timers are shared with the host. Use a stopwatch.

Or just don't bother: VirtualBox is a piece of software running on the host, and like all such software, disk I/O is done by the host. Performance will not deviate by much from what the host can do.

Any further discussion will require a zipped VM log.