I haven't followed the list as much as I'd like lately, can someone direct me to a rebuttal of this:
http://download.microsoft.com/download/7/3/e/73e77129-db34-4c95-b182-ab0 b9bd50081/MainframeBenchmarkProj.pdf
I only just discovered the link above after seeing a full page ad extolling Windows 2003 in CIO insight that directed reader to a URL ending in "getthefacts". (The ad was quite near the front - someone spent some bucks.)
If there is a response to this, formal or otherwise, I'd enjoy giving it a read.
My two cents.
1. A dual Xeon (or whatever) != mainframe. One is a PC, the other is an entire platform.
2. Simple print and file services IMHO, is not the goal of Linux on z/VM. I'd like to see >1000 virtual hosted machines running on that dual Xeon.
3. I'm not sure if SLES8 31-bit is what everyone is really running. Granted, s390 users will run 31-bit, but probably not zSeries users.
Now, as a workstation, the mainframe will not keep up, this is a fact. However, under load, performance does not drop off in the same way as it does for Intel servers.
I'd treat this like anything else that comes out of Redmond... rubbish.
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