I apologize for not following the whole thread here, but in case it has not been mentioned, the following should be pointed out to further differentiate z from x as far as virtualization goes: The zSeries architecture and hardware design contains facilities not found in the Inel machine. These facitlies (mainly SIE and EMIF virtual memory related architectures go a long way in reducing the overhead fo virutalization which must be done entirely in software on Intel. Furthermore the small caches and relatively high aggregate memory latency of the intel machines means that they suffer more from the increase in context switching that occurs when virtualization is done. So yes they can do it, but not nearly as well.
Joe Temple [EMAIL PROTECTED] 845-435-6301 295/6301 cell 914-706-5211 home 845-338-8794 ---------------------- Forwarded by Joseph Temple/Poughkeepsie/IBM on 02/20/2002 07:57 AM --------------------------- Jim Elliott <[EMAIL PROTECTED]>@VM.MARIST.EDU> on 02/19/2002 08:50:15 PM Please respond to Linux on 390 Port <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] cc: Subject: Re: VM for Intel? > But that was my question. Since IBM and VMWare are partnering on > this effort, would IBM have contributed any sort of functionality > lifted from z/VM? If not, why the partnership? ... Mark: Just as IBM supports Linux across all four of our server lines, we also wanted to support "partitioning" across all four of our server lines. With this announcement (which we previewed at LinuxWorldExpo in NYC), we now have that function available. There is no z/VM code in VMware's ESX server (what IBM will be shipping on selected xSeries servers). Regards, Jim Elliott - Linux Advocate, IBM Canada
