On 2/23/15 14:00 , Rich Teer via dtrace-discuss wrote: > Hi there, > > I have a question that I hope doesn't seem too stupid: in the > DTrace Guide et al, much is said about per CPU items (e.g., > Primary buffers). I'm just curious to know: are the things > that are tracked "per CPU" actually tracked per CPU (socket), > or would "per CPU core" be a more accurate way of thinking > about it?
Hi Rich, I'd probably describe them as being on a per-hardware thread basis or per logical CPU that the OS sees. For example, if you have a 2 socket system with 4 cores each and 2 hardware threads (hyperthreads in Intel parlance) then you'd see 16 CPUs, and it's on that basis which DTrace is tracking stuff. That clarify things? Robert ------------------------------------------- dtrace-discuss Archives: https://www.listbox.com/member/archive/184261/=now RSS Feed: https://www.listbox.com/member/archive/rss/184261/25769126-e243886f Modify Your Subscription: https://www.listbox.com/member/?member_id=25769126&id_secret=25769126-8d47a7b2 Powered by Listbox: http://www.listbox.com
