Tim: >> $ cat /proc/cpuinfo >> processor : 0 >> vendor_id : GenuineIntel >> cpu family : 15 >> model : 1 >> model name : Intel(R) Pentium(R) 4 CPU 1.60GHz >> stepping : 2 >> cpu MHz : 1600.124 >> cache size : 256 KB James Wilkinson: > In which case, despite having the "ht" flag, it's only got "one > hyperthreading sibling", which is as near to "doesn't do hyperthreading" > as makes no difference. Ok, thanks for that. I didn't have a great deal of luck trying to work out which CPUs had which features. > All "ht" proves is that it's got the structures to find out how many > logical processors there are per physical core (in this case, one). Doesn't sound very practical, in this case. So, just for the sake of curiosity, since I don't have one of those motherboards, hyper-threading with it would require a motherboard with two separately socketed CPUs? -- (Currently testing FC5, but still running FC4, if that's important.) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.