Hi Thomas, Could you send me a copy of this pdf presentation? Thanks P
On Fri, Oct 31, 2008 at 6:28 AM, Huegel, Thomas <[EMAIL PROTECTED]> wrote: > In the Z10-BC web announcement there was a comarison of Z/VM and VMware > running LINUX guests. > I have the PDF presentation if you want it I can send it to you.. > Or it is probably not too difficult to find on IBM's web site. > > -----Original Message----- > From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] > Behalf Of Alan Ackerman > Sent: Thursday, October 30, 2008 6:25 PM > To: [email protected] > Subject: I/O Overhead - z/VM versus VMWARE > > > I got asked: > > "Does z/VM impose non-insignificant overhead? Is it similar to VMware,= > in > which virtual I/O imposes significant overhead, but most processor and = > > memory access runs at close to native physical speed?" > > I don't know anything about VMWARE so I could not answer the question. = > I > know that CCW Translation in VM costs significant cycles. > > I think FCP disks < dedicated DASD < fullpack minidisks < small minidisks= > . > I would HOPE that the zSeries, with so much of virtualization built into = > > the hardware, would have lower costs than VMWARE, but I don't really kn= > ow. > > Any takers? > > Are there any web sites that give performance comparisons VM versus VMWAR= > E? > > Alan Ackerman = > > Alan (dot) Ackerman (at) Bank of America (dot) com >
