Re: some interesting observations on the relative performance of kvm vs. bhyve

2014-02-03 Thread Aryeh Friedman
Note on cachemodes it seems to make very little real world difference in which one you pick. -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/

Re: some interesting observations on the relative performance of kvm vs. bhyve

2014-02-01 Thread Peter Grehan
Hi Aryeh, Does this bring up the same power failure scenario issues mentioned in the link you provided?It seems like the only way to get reasonable performance is to be essentially unsafe in guest writes to the host disk? Use ZFS and a ZIL to mitigate this. Or UFS with journalling. A qu

Re: some interesting observations on the relative performance of kvm vs. bhyve

2014-02-01 Thread Aryeh Friedman
On Sat, Feb 1, 2014 at 10:16 PM, Peter Grehan wrote: > > I have 1 host that dual boots FreeBSD and Ubuntu 12.04.3 LTS and bhtyve > >> seems to be atleast 3 or 4 times faster with disk I/O then kvm using the >> most stripped down command lines I can come up with. >> > > I'm guessing that the defa

Re: some interesting observations on the relative performance of kvm vs. bhyve

2014-02-01 Thread Aryeh Friedman
On Sat, Feb 1, 2014 at 10:16 PM, Peter Grehan wrote: > > I have 1 host that dual boots FreeBSD and Ubuntu 12.04.3 LTS and bhtyve > >> seems to be atleast 3 or 4 times faster with disk I/O then kvm using the >> most stripped down command lines I can come up with. >> > > I'm guessing that the defa

Re: some interesting observations on the relative performance of kvm vs. bhyve

2014-02-01 Thread Peter Grehan
> I have 1 host that dual boots FreeBSD and Ubuntu 12.04.3 LTS and bhtyve seems to be atleast 3 or 4 times faster with disk I/O then kvm using the most stripped down command lines I can come up with. I'm guessing that the default cache mode for qemu in that release is "none". You may want to

some interesting observations on the relative performance of kvm vs. bhyve

2014-02-01 Thread Aryeh Friedman
I have 1 host that dual boots FreeBSD and Ubuntu 12.04.3 LTS and bhtyve seems to be atleast 3 or 4 times faster with disk I/O then kvm using the most stripped down command lines I can come up with. -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org __