Kimberly Chang wrote: > Hello Octave, > > I have customer running guest LDoms with only 2 x VCPU. They started > with staying in core boundary then scaled it down to 2 threads and is > happy with the performance. It's a web tier type of application. >
Typically what I've been seeing from customers (mostly T1 systems to date) is that the domain sizing constraint is memory rather than cpu/strand performance. For example, a 32GB machine with 32 strands offers at most 1GB of memory for each domain - given how memory hungry Solaris is, that's typically not enough for serious applications. Until the cpu/memory ratio changes the limiting factor will be to carve into slices with more memory (2/4GB domains). You can move around as load dictates - though that is likely a second order optimization. cheers, ash. > Best regards, > Kimberly Chang > Systems Engineer > > Octave Orgeron wrote: > >>Hi Everyone, >> >>What has been everyone's experience with CPU affinity in LDoms? I'm curious >>to see how people feel about having multiple guest domains on a single core? >>Obviously, it makes sense to have larger guest domains own their own cores. >>But what about the smaller guest domains that don't need a lot of VCPU >>resources? >> >>*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* >>Octave J. Orgeron >>Solaris Systems Engineer >>http://www.opensolaris.org/os/community/sysadmin/ >>http://unixconsole.blogspot.com >>unixconsole at yahoo.com >>*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* >> >> >> >> >> >> ____________________________________________________________________________________ >>Be a better friend, newshound, and >>know-it-all with Yahoo! Mobile. Try it now. >>http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ >> >>_______________________________________________ >>ldoms-discuss mailing list >>ldoms-discuss at opensolaris.org >>http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss >> > > > _______________________________________________ > ldoms-discuss mailing list > ldoms-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss
