On Thu, Aug 27, 2015 at 6:10 AM, Marie <mariehelen...@gmail.com> wrote:
> I've tried this in the past, and found the worst performance penalty was > with ARC disabled in guest. I tried with ARC enabled on host and guest, > only on host, only on guest. There was a significant performance penalty > with either ARC disabled. > > I'd still recommend to experiment with it on your own to see if the hit is > acceptable or not. > Thanks for all the replies. I'm going with a small-ish ARC on the VMs (about ¼ the allocated RAM as max, and very small amount for min) and letting the host have its substantial ARC. Since I'm running with compression=lz4 on the guest, I ended up setting compression=none on the host for the backing volumes. After some testing I found I was getting no compression on the backing volumes, so why waste the CPU overhead trying. _______________________________________________ firstname.lastname@example.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"