Ian, The lx brand is still under active development. We have been concentrating on functionality so that we can get as much stuff running as possible and we have done virtually no performance work yet. There is a lot of easy stuff to do which will help performance and you can see the bugs we've already filed for that in the smartos bug list ( https://smartos.org/bugview/index.html). Over time you could expect to see lx zone performance converging with native zone performance. In addition, once you start scaling the number of zones on your box vs. the number of kvms you will quickly see that zones scale much better. There are other benefits besides performance, such as the ability to use DTrace against your lx processes, which are also available now.
Thanks, Jerry On Fri, Apr 3, 2015 at 1:32 PM, Ian Collins <[email protected]> wrote: > One of my Linux work loads is building software so I use a clean build of > gcc (C and C++ only) as a benchmark. I've found this to be a reasonable > benchmark given its mix of CPU and I/O bound phases. > > I was a little surprised to see an Ubuntu LX zone was slower building gcc > 4.9 release than a KVM: > > LX Ubuntu: > > real 27m5.777s > user 64m28.272s > sys 15m7.446s > > KVM Ubuntu: > > real 21m54.977s > user 61m8.702s > sys 8m24.904s > > The host system is a quad core i7 and both machines had 8GB of RAM. > > Note the biggest difference is in the sys time. Looking at the LX zone > with dtrace I see the syscalls I'd expect during as build (mainly > open/mmap/stat/lstat/lseek/read) along with rt_sigaction and > rt_sigprocmask in the top 5. > > Overall building on an LX zone was "kinder" to the host, the KVM process > would max out the CPU and the load average during the build was much higher. > > -- > Ian. > > > > ------------------------------------------- > smartos-discuss > Archives: https://www.listbox.com/member/archive/184463/=now > RSS Feed: https://www.listbox.com/member/archive/rss/184463/ > 21516906-2011406d > Modify Your Subscription: https://www.listbox.com/ > member/?& > Powered by Listbox: http://www.listbox.com > ------------------------------------------- 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
