Brian Jackson napsal(a): > On Monday 17 August 2009 22:28:35 Zdenek Kaspar wrote: >> Hello everyone, >> >> I guess I'm not the first one who hit the problem with Microsoft's >> licensing model.. >> >> Nowadays the common single or dual quad-core workstation can't be fully >> used because it's limited by example: license up to 2 physical >> processors. Such VM acts like 4-way or 8-way machine. > > > Nine times out of ten, a single cpu guest is going to be a better option than > a smp/multie core guest. I've seen idle windows guests go from using nearly > 200% cpu for -smp 2 to ~5-10% for -smp 1. Unless your guest is actually using > all that cpu all the time, you're going to be wasting a decent amount of > cycles. Yes, without proper use it's waste. My guest is 64bit and represents node in computing cluster working on assigned jobs (not MPI etc..) >> Is there any way howto expose CPUs differently for this kind of problem? > > > There have been patches (from Andre Pryzwara and maybe others) to support > multi-core vs mult-socket smp. I will check these patches, thank you (and Dor Laor) for the hint! -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
