Re: Hyper-V Disk Performance

2017-10-24 Thread Karel Gardas
Last I checked running with softdeps in virtualized env, I got some panices. It was few years (2 max) ago, but IIRC softdeps are not that heavily developed in time like other parts of the kernel. From what I remember from the analysis back than, slower the drive is, higher chance you get panic. So

Re: Hyper-V Disk Performance

2017-10-24 Thread Mike Belopuhov
On Mon, Oct 23, 2017 at 16:41 -0500, Daniel Boyd wrote: > Is there a recommended configuration for virtual disks in Hyper-V? I > have a virtual machine that I set up recently running 6.2 that has > *very* slow disk performance. It took well over an hour to untar > ports.tar.gz. The host server i

Re: Hyper-V Disk Performance

2017-10-23 Thread Nick Holland
On 10/23/17 21:57, Daniel Boyd wrote: ... > I have another vm running on my laptop under KVM that runs > substantially faster than the hyper-v vm. My laptop is far below the > hyper-v server in most respects performance-wise, but it does have an > SSD. I’d be curious to find out how much of tha

Re: Hyper-V Disk Performance

2017-10-23 Thread Nick Holland
On 10/23/17 22:07, Daniel Boyd wrote: > On Oct 23, 2017, at 8:57 PM, Daniel Boyd > wrote: >>> But ... for unpacking ports, make sure that file system is >>> mounted (at the OpenBSD level) with softdeps. Yes, it's really a >>> huge difference for lots of tiny files, which is exactly what the >>>

Re: Hyper-V Disk Performance

2017-10-23 Thread Daniel Boyd
On Oct 23, 2017, at 8:57 PM, Daniel Boyd wrote: > > Thanks for the helpful response. > > FYI, I did some more research and discovered that Hyper-V doesn’t support > booting from virtual SCSI drives, so that solves that. > > I have another vm running on my laptop under KVM that runs substanti

Re: Hyper-V Disk Performance

2017-10-23 Thread Daniel Boyd
Thanks for the helpful response. FYI, I did some more research and discovered that Hyper-V doesn’t support booting from virtual SCSI drives, so that solves that. I have another vm running on my laptop under KVM that runs substantially faster than the hyper-v vm. My laptop is far below the hy

Re: Hyper-V Disk Performance

2017-10-23 Thread Nick Holland
On 10/23/17 17:41, Daniel Boyd wrote: > Is there a recommended configuration for virtual disks in Hyper-V? I > have a virtual machine that I set up recently running 6.2 that has > *very* slow disk performance. It took well over an hour to untar > ports.tar.gz. The host server is a few years old,