Jiamin, Does AMZN not carry a forum of their own for these questions? They'd be the best to ask really.
I do not know what an "EC2 Compute Unit" means, but the page clearly says two virtual cores. Perhaps this may help understand: http://gevaperry.typepad.com/main/2009/03/figuring-out-the-roi-of-infrastructureasaservice.html On Thu, Nov 24, 2011 at 9:10 PM, Jiamin Lu <jiamin....@googlemail.com> wrote: > Hi, all > > I am using the Amazon EC2, with their large instances. > Amazon claims these large type instances have 4 EC2 Compute units (2 virtual > cores with 2 EC2 Compute Units each). > But according to my observation, it seems like they only have two cores. > > I checked the /proc/cpuinfo, which shows there are only two processors, > I also used the top command, and it also says only two cpu there. > > Can someone tell me actually how many cores are contained inside these large > instances? > Did I misunderstand these terms that Amazon talks about ?? > > Thanks > > Jiamin Lu > > -- Harsh J