> I'm currently spec'ing out a Sandy Bridge Xeon server that would most > likely > run Illumos / SmartOS. This server will initially be running Windows > Server > 2008 R2 / Exchange Server and a Debian Linux distribution inside of > KVM. > I'm currently deciding between the Xeon E3-1220 (no Hyper-Threading) > and > E3-1230 (Hyper-Threading). What's the consensus on HT on Illumos/KVM - > could I get a significant performance gain from turning on HT, or is > it > better to leave it off? The VMs are not going to be running any > intensive multithreaded applications.
It might help, but if a system is stressed with or without ht, the one without ht usually wins, since each "virtual core" with ht will have half the effective cache size. If memory stress is low, ht may help, though. > > Also, I'm planning on getting a SuperMicro X9SCM-F motherboard. It is > my understanding there are no known incompatibilities between this > motherboard and recent releases of Illumos, is that correct? I only have one X7DB8 and a few X8DTH boards installed with (a recent recent illumos-based) OpenIndiana, but those work as a dream… Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 [email protected] http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
