Please take this discussion elsewhere. This email is about being able to boot off ffs2 not your ability to run vm's.
On Thu, Apr 17, 2014 at 1:30 PM, Adam Thompson <athom...@athompso.net> wrote: > Yes, but the very nature of the discussion concerns VMs, where the point is > to multiplex the physical CPUs into multiple VMs in user-controllable > chunks. A VM with one vCPU is perfectly reasonable and normal. > > I've found that having multiple cores available can speed up a desktop, and > certain classes of cpu-bound server applications, and not much else. > Those applications are not many; databases (sometimes), web servers > (sometimes), application servers (often). > The fact my router has 8 cores available doesn't really help it very much. > (Maybe BGP converges a little bit faster?) Ditto for my DNS servers, my mail > server, my proxy server, etc. > So, I would like to know what application Giancarlo has where he actually > notices the lack of multiple cores. > -Adam > > > On April 17, 2014 12:23:44 PM CDT, Otto Moerbeek <o...@drijf.net> wrote: >> >> On Thu, Apr 17, 2014 at 12:22:44PM -0500, Adam Thompson wrote: >> >>> Given the single-threaded nature of much of the kernel, what >>> applications do you run where multiple CPUs makes much of a difference to >>> OpenBSD? >> >> >> >> Come on, a machine runs multiple processes... >> >>> >>> Also, switching from IDE to any of the supported SCSI, SAS or SATA disk >>> types also produces a noticeable improvement. I'm not sure if those are >>> available in every KVM implementation or just the Proxmox-integrated >>> version... IIRC they're available in RHEV too, so most likely they're >>> standard. >> >> >>> >>> -Adam >>> >>> On April 17, 2014 11:34:19 AM CDT, Giancarlo Razzolini >>> <grazzol...@gmail.com> wrote: >>>> >>>> Em 17-04-2014 07:34, Abel Abraham Camarillo Ojeda escreveu: >>>>> >>>>> On Thu, Apr 17, 2014 at 5:31 AM, Brandon Mercer >>>>> <yourcomputer...@gmail.com> wrote: >>>>>> >>>>>> It will take me about that long to newfs the 10 kvm's I plan on >>>> >>>> using ;) >>>>>> >>>>>> >>>>>> On Thu, Apr 17, 2014 at 5:09 AM, Otto Moerbeek <o...@drijf.net> >>>> >>>> wrote: >>>>>>> >>>>>>> On Wed, Apr 16, 2014 at 11:16:00PM -0700, Philip Guenther wrote: >>>>>>> >>>>>>>> On Thursday, April 17, 2014, Otto Moerbeek <o...@drijf.net> wrote: >>>>>>>> ... >>>>>>>> >>>>>>>>> But bear in mind that ffs2 has more overhead in terms of >>>> >>>> metadata. >>>>>>>>> >>>>>>>>> IMO, making it the default is not a good idea. >>>>>>>> >>>>>>>> >>>>>>>> You have fewer than 24 years left to enjoy FFS v1... >>>>>>> >>>>>>> and I plan to enjoy every minute of that period! >>>>>>> >>>>>>> -Otto >>>>>> >>>>>> >>>>>> >>>>> I found it really fast to work with kvm/openbsd if you use -drive >>>>> >>>>> ...,if=virtio ... >>>>> like 4x-5x times faster than if=ide -the default- >>>> >>>> >>>> I use everything virtio and the performance difference is quite >>>> notable. >>>> The only complain is that openbsd won't see more than one processor, no >>>> matter what you do. >>>> >>>> -- >>>> Giancarlo Razzolini >>>> GPG: 4096R/77B981BC >>> >>> >>> -- >>> Sent from my Android device with K-9 Mail. Please excuse my brevity. > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity.
