On Sat, Apr 18, 2015 at 12:29 AM, Ian Collins <[email protected]> wrote:
> > Try the test I did (building gcc) in a KVM (will all cores and plenty of > RAM) and then in an LX zone (with the same RAM cap). Monitor the system > load during the build. You will see that the zone is much kinder on the > host. Also remember these are zones, so you may have many more on a system > without loosing all your memory to KVMs whether they need it or not. > Although I haven't done any measurements, not loosing big chunks of RAM > should help with your ZFS ARC. > Will do. > > My test box is a pimped up consumer PC with a meager 32GB of RAM, so I can > only run a small number of KVMs at one time. On the same system I will be > able to run many LX zones concurrently. It seems I run out of vcpus before I run out of RAM when I'm running KVM instances. Most *Nix VMs do just fine of 1-2GB of RAM. In fact, Centos minimum install with LAMP is a happy camper with 1GB. In any event, I completely agree with you about zones being the much better solution. This biggest advantage I see is that you get full performance of native zfs, which is infinitely faster than putting ext4 on top of zfs in a kvm zone. Greg ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
